6.Evaluation and Management of Peripheral Nerve Injuries and Disorders : History, Observation, Palpation, Motor & Sensory examination, Reflex testing, differential Diagnosis, Balance & Coordination examination, Gait analysis, Functional analysis, List of Problems & Complications, short & Long Term goals, Management of systemic complications, Management of Mechanical Complications, Use of various Neuro physiological approaches& Modalities in Hereditary motor sensory neuropathy, Guillain-Barre syndrome, Brachial plexus palsy, Thoracic outlet syndrome, Lumbosacral plexus lesions, Phrenic & intercostals nerve lesions, Median nerve palsy, Ulnar nerve palsy, Radial nerve palsy, Musculocutaneous nerve palsy, Anterior & Posterior interosseous nerve palsy, Axillary nerve palsy, Long thoracic nerve palsy, Supra scapular nerve palsy, sciatic nerve palsy, Tibial nerve palsy, Common peroneal nerve palsy, Femoral nerve palsy, Obturator nerve palsy, and Pudental nerve palsy. [10 hours]

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I now have excellent material from multiple authoritative textbooks and current literature. Let me compile the comprehensive study notes for this entire 10-hour curriculum unit.

Evaluation and Management of Peripheral Nerve Injuries and Disorders

Comprehensive Study Notes - 10-Hour Curriculum Module

PART I: EVALUATION FRAMEWORK

1. History Taking

A thorough history is the cornerstone of peripheral nerve assessment. Key elements include:

Chief Complaint:

Onset (sudden vs. gradual), duration, and progression
Distribution of weakness, numbness, tingling, or pain
Character of sensory symptoms: burning, shooting, electric, pins-and-needles

Mechanism/Etiology:

Trauma: traction, compression, laceration, fracture (nerve adjacent to bone)
Systemic disease: diabetes, hypothyroidism, renal failure, vasculitis, HIV
Toxic exposure: alcohol, heavy metals (lead, arsenic, mercury), chemotherapy drugs (vincristine, paclitaxel, cisplatin)
Hereditary: family history of foot deformity, gait problems, or similar symptoms
Iatrogenic: post-surgical, injection injuries, prolonged tourniquet use
Recent infections (preceding GBS by 1-4 weeks): Campylobacter, CMV, EBV, Zika

Functional History:

Impact on ADLs: fine motor tasks, dressing, grip, walking, bladder/bowel
Occupation and hand dominance
Medications (some are neurotoxic: isoniazid, metronidazole)
Nutritional status (B1, B6, B12 deficiencies)

Red Flags:

Rapidly progressive weakness (GBS)
Bilateral involvement
Respiratory compromise (phrenic nerve, GBS)
Bladder/bowel dysfunction (lumbosacral plexus, pudendal nerve)

2. Observation

Systematic visual inspection provides vital clues before touching the patient:

Finding	Implication
Wrist drop	Radial nerve palsy
Claw hand (ring/little fingers)	Ulnar nerve palsy
Ape/simian hand	Combined median + ulnar
Foot drop (steppage gait)	Common peroneal nerve palsy
Winging of scapula	Long thoracic nerve palsy (serratus anterior)
Shoulder asymmetry/atrophy	Suprascapular or axillary nerve palsy
Thenar wasting	Median nerve (carpal tunnel or high lesion)
Hypothenar wasting	Ulnar nerve palsy
Pes cavus + hammer toes	Hereditary motor sensory neuropathy (CMT)
Fasciculations	Denervation / lower motor neuron disease
Pressure ulcers / burns	Sensory loss (insensate skin)
Asymmetric chest expansion	Phrenic nerve palsy
Posture: shoulder depression	Brachial plexus traction injury

Skin and Trophic Changes:

Dry, shiny, hairless skin = autonomic/sensory involvement
Sudomotor testing (sweat pattern) over the territory of suspected nerve
Joint deformities from chronic denervation

3. Palpation

Nerve palpation: Examine accessible nerves (ulnar at medial epicondyle, common peroneal at fibular head, radial at spiral groove) for swelling, nodularity (neuroma), tenderness, or thickening (as in CMT - "onion bulb" formation may make nerve palpably enlarged)
Tinel's sign: Tapping over a nerve at the compression/injury site produces tingling/electrical sensation distally - indicates regenerating axons or entrapment
Phalen's test: Wrist flexion 60 seconds reproduces carpal tunnel symptoms (median nerve)
Adson's test, Wright's test, Roos test: Thoracic outlet syndrome provocative tests
Muscle bulk/tenderness: Palpate target muscles for wasting, fibrosis, or tenderness
Spine palpation: Paraspinal tenderness, trigger points, referred pain patterns

4. Motor Examination

Medical Research Council (MRC) Grading Scale:

Grade	Description
0	No contraction
1	Flicker / trace contraction
2	Movement with gravity eliminated
3	Movement against gravity
4	Movement against resistance (sub-normal)
5	Normal strength

Key Muscle Testing by Nerve:

Nerve	Key Muscles Tested	Action Tested
Radial	ECRL, ECU, EDC, EPL	Wrist extension, finger extension, thumb extension
Median (low)	APB, FPB, opponens	Thumb abduction, opposition
Median (high)	FDP index/middle, FPL, pronator	Wrist flexion, FDP, pronation
Ulnar (low)	Interossei, ADM, FDM	Finger abduction/adduction
Ulnar (high)	FCU, FDP ring/little	Wrist ulnar deviation, ring/little DIP flexion
Axillary	Deltoid	Shoulder abduction 15-90°
Musculocutaneous	Biceps, brachialis	Elbow flexion, forearm supination
Long thoracic	Serratus anterior	Scapular protraction (wall push-up test)
Suprascapular	Supraspinatus, infraspinatus	Shoulder abduction (initiation), external rotation
Femoral	Quadriceps	Knee extension
Obturator	Hip adductors	Hip adduction
Common peroneal	Tibialis anterior, EHL, peronei	Dorsiflexion, eversion
Tibial	Gastrocnemius, soleus, toe flexors	Plantarflexion, toe flexion
Sciatic	All below knee + hamstrings	Knee flexion, all ankle/foot

Functional Motor Tests:

Pinch strength (dynamometer) - median/ulnar
Grip strength - median/ulnar
Kapandji index - thumb opposition
Key grip test - ulnar intrinsics

5. Sensory Examination

Modalities to Test (in order of fiber type):

Modality	Fiber Type	Tool
Light touch	A-beta	Cotton wool
Vibration	A-beta	128 Hz tuning fork
Proprioception	A-beta	Passive joint movement
Pin-prick / pain	A-delta	Neurotip / pin
Temperature	C fibers	Hot/cold tubes

Grading:

Absent / Diminished / Normal / Hypersensitive / Allodynia (pain from light touch)

Quantitative Sensory Testing:

Two-point discrimination (static and moving) - normal fingertip: 2-4 mm static, 2-3 mm moving
Semmes-Weinstein monofilaments: quantify pressure threshold; 4.17 = normal; 6.65 = deep pressure only; loss of protective sensation at >4.31
Vibration threshold with biothesiometer

Sensory Map Interpretation:

Stocking-glove pattern = length-dependent polyneuropathy (diabetes, CMT, GBS)
Dermatomal pattern = nerve root/radiculopathy
Single nerve territory = mononeuropathy/entrapment
Multiple mononeuropathies = mononeuritis multiplex (vasculitis, leprosy, diabetes)

6. Reflex Testing

Deep Tendon Reflexes (DTR):

Reflex	Nerve Root	Test
Biceps	C5-C6 (musculocutaneous)	Tendon at antecubital fossa
Brachioradialis	C6	Brachioradialis tendon
Triceps	C7 (radial)	Triceps tendon
Knee (patellar)	L2-L4 (femoral)	Patellar tendon
Ankle (Achilles)	S1-S2 (tibial)	Achilles tendon

Grading (NINDS scale): 0 = Absent; 1+ = Trace; 2+ = Normal; 3+ = Brisk (no clonus); 4+ = Clonus

Peripheral Nerve Pattern: Hyporeflexia or areflexia in the distribution of the affected nerve or nerve root.

GBS: global areflexia (early, even before weakness)
CMT: absent Achilles reflexes early, later generalized areflexia
Femoral nerve palsy: absent knee jerk
Tibial/sciatic: absent ankle jerk
Median/ulnar: absent finger jerks (rarely tested, but useful in high lesions)

Special Reflexes:

Bulbocavernosus reflex: S3-S4, pudendal nerve - critical for pudendal/lumbosacral assessment
Anal wink reflex: S4-S5 - tests perianal sensation + sphincter motor arc
Cremasteric reflex: L1-L2, genitofemoral nerve

7. Differential Diagnosis

When evaluating peripheral nerve disorders, systematically exclude:

Diagnosis	Key Distinguishing Features
UMN lesion (stroke, MS, myelopathy)	Hyperreflexia, spasticity, positive Babinski, no significant atrophy early
Radiculopathy	Dermatomal sensory loss, positive SLR/ULTT, neck/back pain, imaging evidence
Plexopathy	Multiple nerve territories, may follow radiation/cancer/trauma
Myopathy	Proximal weakness, preserved sensation/reflexes, elevated CK
NMJ disorder (MG, LEMS)	Fatigability, preserved sensation and reflexes, decremental/incremental EMG
Motor neuron disease (ALS)	Mixed UMN + LMN signs, no sensory loss, fasciculations
CRPS	Allodynia, autonomic changes, vasomotor instability, disproportionate pain
Functional/psychogenic	Inconsistency on exam, "give-way" weakness, Hoover sign positive

Electrodiagnostic Differentiation:

Nerve Conduction Study (NCS): Demyelinating = slowed velocity, prolonged latency, conduction block; Axonal = reduced amplitude, preserved velocity
EMG: Denervation signs (fibrillations, PSWs), reinnervation (polyphasic MUAPs) indicate axonal loss
Somatosensory Evoked Potentials (SSEP): assess central vs. peripheral, useful in plexus injuries
F-waves and H-reflexes: assess proximal nerve conduction (roots, plexus)

8. Balance and Coordination Examination

Peripheral nerve injury disrupts proprioception and motor control, affecting balance:

Clinical Tests:

Romberg test: Eyes open vs. closed - positive if loss of balance worsens with eyes closed (proprioceptive/sensory deficit)
Tandem walking (heel-to-toe): Assesses coordination; impaired in sensory neuropathy
Single-leg stance: Timed; affected side reveals deficits
Fukuda stepping test: Assesses vestibular vs. proprioceptive balance

Objective Tools:

Berg Balance Scale (BBS): 14-item; relevant in GBS recovery, sciatic/tibial nerve palsy
Balance Master / force platform: measures center of pressure displacement
Dynamic Posturography: differentiates vestibular vs. proprioceptive vs. visual balance contributions

Coordination Tests:

Finger-nose-finger test: intact in peripheral neuropathy (cerebellar lesions positive)
Heel-shin test: affected in sensory neuropathy (proprioceptive ataxia)
Diadochokinesis: generally intact in peripheral nerve lesions

Note: In severe sensory neuropathy (CMT, GBS recovery phase), sensory ataxia can closely resemble cerebellar ataxia - the key differentiator is the Romberg sign (positive in sensory, equivocal in cerebellar).

9. Gait Analysis

Common Gait Deviations in Peripheral Nerve Injuries:

Nerve Affected	Characteristic Gait Pattern
Common peroneal	Foot drop - steppage gait (excessive hip/knee flexion to clear foot); equinovarus posture
Tibial	Inability to push off; calcaneal gait; impaired stance phase
Sciatic	Combined foot drop + weak knee flexion; Trendelenburg if hip also affected
Femoral	Knee buckling in stance; compensates by trunk lean or hand on thigh
Obturator	Abductor lurch; scissor gait if bilateral
Long thoracic	Scapular winging; altered upper limb swing
GBS (recovery)	Wide-based, ataxic gait; steppage pattern
CMT	High-stepping gait; pes cavus; stocking distribution sensory loss

Gait Analysis Tools:

Observational Gait Analysis (OGA): video recording, 2D
3D Motion capture (Vicon, OptiTrack): quantitative kinematics
Wearable accelerometers: community ambulators
Timed 10-Meter Walk Test (10MWT), 6-Minute Walk Test (6MWT): functional measures
Dynamic EMG: identifies timing/pattern of muscle activation during gait

10. Functional Analysis

Activity Limitations to Assess:

Upper limb: pinch, grip, writing, dressing, feeding, tool use
Lower limb: stairs, uneven terrain, community ambulation
Respiratory: tidal volume, vital capacity (phrenic/intercostal lesions)
Sphincter function: bladder/bowel control (pudendal, lumbosacral plexus)

Standardized Functional Outcome Measures:

DASH/QuickDASH: Disabilities of Arm, Shoulder, and Hand
Michigan Hand Questionnaire (MHQ): Hand-specific functional outcomes
Functional Independence Measure (FIM): Global ADL assessment
Barthel Index: ADL independence
GBS Disability Scale: GBS-specific functional grading
Foot and Ankle Disability Index (FADI): Lower limb neuropathy
Motricity Index: Quantifies motor recovery post-nerve injury

11. Problems and Complications

Motor Problems:

Muscle weakness/paralysis
Muscle wasting/atrophy (denervation)
Contractures from muscle imbalance
Joint instability (paralytic subluxation - e.g., shoulder in axillary palsy)

Sensory Problems:

Sensory loss (loss of protective sensation)
Neuropathic pain (burning, dysesthesia, allodynia, hyperalgesia)
Trophic ulcers from insensate skin

Functional Problems:

Loss of fine motor skills, grip, pinch
Impaired gait and mobility
Falls risk (proprioceptive loss + weakness)
Impaired ADLs

Systemic Complications:

Respiratory failure (GBS, phrenic nerve palsy, intercostal nerve lesions)
Autonomic dysfunction (GBS): arrhythmia, BP instability, ileus, bladder dysfunction
Deep vein thrombosis (DVT) in immobile patients
Pressure sores / decubitus ulcers
Psychological: depression, anxiety, adjustment disorder

Mechanical Complications:

Contractures (wrist flexion in radial nerve palsy, equinus in common peroneal palsy)
Joint malalignment (shoulder subluxation, foot deformity)
Tendon shortening / adhesions
Edema of denervated limb
Skin breakdown

12. Goal Setting

Short-Term Goals (0-6 weeks):

Prevent deformity and contracture with splinting/orthotics
Prevent pressure ulcers with sensory precautions
Reduce pain and edema
Maintain ROM of affected joints
Protect regenerating nerve (activity modification)
Respiratory: maintain airway/ventilation (GBS)
Patient education: skin care, positioning, activity precautions

Long-Term Goals (6 weeks - months/years):

Maximize motor and sensory recovery
Re-educate recovered muscles for functional use
Achieve independent ADLs
Return to occupation/sport
Optimize compensatory strategies where recovery is incomplete
Vocational rehabilitation and community reintegration
Provide definitive orthosis/adaptive equipment if permanent deficit

PART II: MANAGEMENT

13. Management of Systemic Complications

Respiratory:

Serial bedside spirometry (FVC, FEV1) - especially GBS, phrenic nerve palsy
Intubate if FVC <20 mL/kg or rapidly declining (GBS)
Incentive spirometry, IPPB, and manual chest physiotherapy
Glossopharyngeal breathing for high-level respiratory compromise
BiPAP/NIV support in subacute phase; diaphragmatic re-training in recovery

Autonomic Dysfunction (GBS, Diabetic Neuropathy):

Cardiac monitoring for arrhythmias
Cautious positioning for orthostatic hypotension (head-up tilt protocol)
Bowel program for neurogenic bowel (timing, dietary fiber, laxatives)
Bladder management: intermittent catheterization for neurogenic bladder
Thermoregulation support (impaired sweating in autonomic neuropathy)

DVT Prophylaxis (immobile patients):

Pneumatic compression devices
LMWH (pharmacological prophylaxis per physician)
Active + passive limb exercises; early mobilization

Nutritional Support:

Thiamine (B1), B6, B12 supplementation in deficiency neuropathies
Protein optimization for axon regeneration

Pain Management:

Neuropathic pain: gabapentin, pregabalin (first-line); duloxetine, amitriptyline
TENS for pain modulation
Desensitization program for allodynia/hyperalgesia

14. Management of Mechanical Complications

Splinting/Orthoses:

Radial nerve palsy: Wrist cock-up splint (dynamic or static) - maintains functional position, prevents contracture
Median nerve palsy (low): Opponens splint - maintains thumb opposition
Ulnar nerve palsy: Anti-claw splint (lumbrical bar) - blocks MCP hyperextension in ring/little fingers
Common peroneal palsy: AFO (ankle-foot orthosis) - prevents foot drop, enables heel-strike gait
Brachial plexus / axillary palsy: Shoulder sling or humeral cuff - prevents inferior subluxation
Sciatic nerve palsy: Combined AFO + knee orthosis as needed

Contracture Prevention and Management:

Daily passive ROM exercises through full range
Prolonged stretch with serial casting or dynamic splints
Heat before stretching (ultrasound, warm wax bath)
Splinting at end-range position during rest

Edema Management:

Elevation of denervated limb
Retrograde massage
Compression bandaging/gloves
Contrast baths (cautious in insensate limbs)

Skin and Wound Care:

Regular visual inspection of insensate areas
Protective footwear/padding
Pressure offloading for trophic ulcers
Moist wound healing principles

Strengthening (Post-Reinnervation):

Begin active-assisted exercise when MMT grade 2 appears
Progress to active and resisted exercise with grading
Functional task-specific training
Biofeedback-assisted muscle reeducation

15. Neurophysiological Approaches and Modalities

A. Electrical Stimulation:

Neuromuscular Electrical Stimulation (NMES/FES): Delays denervation atrophy; stimulates reinnervated muscle once NMJ re-established
Transcutaneous Electrical Nerve Stimulation (TENS): Pain relief via gate control (conventional/high frequency) or endorphin release (low-frequency acupuncture-type)
Percutaneous Electrical Neural Stimulation: Brief intraoperative or perioperative electrical stimulation enhances axon regeneration (current evidence: 20 Hz, 1 hour of continuous intraoperative stimulation shown to accelerate reinnervation)
Interferential Therapy (IFT): Deep penetrating current; pain relief and circulation

B. Ultrasound Therapy:

Pulsed therapeutic ultrasound: promotes Schwann cell proliferation, upregulates NGF, reduces inflammation at injury site
Parameters: 0.5-1 MHz (deep nerve), 0.3-0.5 W/cm², pulsed mode (1:4), 5-10 min
Evidence supports acceleration of peripheral nerve regeneration in animal and early human studies

C. Photobiomodulation (Low-Level Laser Therapy / LLLT):

Wavelengths 600-1000 nm activate mitochondrial cytochrome c oxidase
Promotes axon sprouting, reduces oxidative stress, improves Schwann cell function
Application over nerve trunk and target muscle; doses 1-4 J/cm²
Growing evidence in carpal tunnel syndrome (median nerve), facial nerve palsy

D. Magnetic Therapy / Repetitive Transcranial Magnetic Stimulation (rTMS):

Pulsed electromagnetic fields (PEMF): enhance nerve regeneration in animal models
Clinically used for neuropathic pain management
rTMS of motor cortex: cortical reorganization following peripheral nerve injury; applied in complex regional pain syndrome

E. Proprioceptive Neuromuscular Facilitation (PNF):

Irradiation principle: strong patterns from intact muscles elicit overflow into weak denervated muscles
Techniques: Hold-Relax, Contract-Relax, Rhythmic Stabilization
Diagonal patterns (D1/D2 flexion-extension) facilitate nerve-territory muscles
Useful when reinnervation begins (MMT 1-2); progresses with recovery

F. Rood's Approach:

Facilitation techniques: brushing, icing, tapping over muscle belly - facilitate alpha motor neuron via cutaneous afferents
Inhibition: maintained pressure, slow stroking, prolonged icing - reduce hypertonicity in antagonists
Application in re-education of reinnervated muscles

G. Sensory Re-education:

Early phase (when protective sensation returns): Graded desensitization using textures from least to most stimulating (cotton, towel, Velcro, rice)
Late phase (when moving touch/localization return): Object recognition training, texture discrimination, two-point discrimination training
Mirror therapy: used in chronic peripheral nerve pain / CRPS type II
Constraint-induced movement therapy (CIMT): adapted for hand nerve injuries

H. Hydrotherapy / Aquatic Therapy:

Warm water reduces muscle spasm and pain; buoyancy enables active exercise with gravity elimination
Particularly useful in GBS rehabilitation, bilateral lower limb peripheral neuropathy
Turbine (whirlpool) for wound healing and sensory stimulation

I. Biofeedback:

EMG biofeedback: real-time muscle activity display - trains patient to activate reinnervated muscles
Threshold-based training: patient tries to exceed minimal contraction threshold
Effective when clinical EMG shows nascent motor unit potentials (MUPs)

PART III: SPECIFIC CONDITIONS

16. Hereditary Motor Sensory Neuropathy (HMSN / Charcot-Marie-Tooth Disease)

Pathophysiology:

Most common inherited neuropathy; prevalence ~1 in 2,500
Mutations in >80 genes affecting Schwann cell membrane proteins (PMP22, MPZ, Cx32), axonal cytoskeleton (NEFL), and mitochondrial proteins (MFN2)
CMT1 (HMSN-I): demyelinating type - markedly reduced NCV (<38 m/s ulnar); onion bulb formation on nerve biopsy; most commonly CMT1A (PMP22 duplication)
CMT2 (HMSN-II): axonal type - near-normal NCV, reduced amplitudes; axonal loss on biopsy
CMTX: X-linked; intermediate conduction velocities (35-45 m/s)
Dejerine-Sottas Disease (formerly CMT3): severe early-onset demyelinating; NCV <10 m/s

(Bradley and Daroff's Neurology in Clinical Practice)

Clinical Features:

Onset: adolescence to young adulthood (CMT1), later in CMT2
Peroneal muscular atrophy: foot/leg wasting; "inverted champagne bottle" or "stork leg" appearance
Pes cavus + hammer toes + high arched feet (long-standing denervation-reinnervation)
Distal > proximal weakness (foot drop, steppage gait)
Stocking-glove sensory loss; proprioception often reduced
Achilles reflexes: absent early; generalized areflexia later
Palpably enlarged peripheral nerves (demyelinating forms)
Scoliosis in severe cases

Physiotherapy Management:

Ankle-foot orthoses (AFOs): prevent foot drop, improve gait efficiency
Strengthening: ankle dorsiflexors, invertors; resistance exercises for remaining function
Stretching: Achilles tendon lengthening (equinus contracture prevention)
Balance training: proprioceptive retraining on foam/wobble board
Aquatic therapy: enables exercise with buoyancy support
Footwear modification + orthotics: metatarsal pads, cushioned soles
Energy conservation strategies (progressive fatigue is common)
Vocational adaptation

No disease-modifying therapy exists currently; ascorbic acid trial (CMT1A) showed no benefit.

17. Guillain-Barré Syndrome (GBS)

Pathophysiology:

Acute immune-mediated polyneuropathy; incidence 1-2 per 100,000/year
Molecular mimicry: preceding infection (Campylobacter jejuni, CMV, EBV, Zika) triggers autoantibodies against peripheral nerve gangliosides
Subtypes:
- AIDP (Acute Inflammatory Demyelinating Polyneuropathy): most common in Europe/North America
- AMAN (Acute Motor Axonal Neuropathy): motor axon attack; common in Asia
- AMSAN: motor + sensory axonal; severe, poor recovery
- Miller-Fisher Syndrome (MFS): ophthalmoplegia + ataxia + areflexia; anti-GQ1b antibody

(Bradley and Daroff's Neurology in Clinical Practice)

Diagnostic Criteria (Brighton/Asbury-Cornblath):

Required: progressive weakness of both legs and arms + areflexia/hyporeflexia
Supportive: progression over days to 4 weeks, relative symmetry, mild sensory signs, bifacial palsies, autonomic dysfunction, absent fever at onset
Lab: elevated CSF protein with <10 cells/µL (albuminocytological dissociation); NCS shows slowing/conduction block (AIDP) or amplitude reduction (axonal)

Clinical Course:

Acute phase (peak dysfunction): days to 4 weeks
Plateau phase
Recovery phase: weeks to months; 80% recover functional ambulation; mortality 1-5%

Acute Medical Management:

IVIG: 2 g/kg over 5 days - equivalent to plasmapheresis
Plasmapheresis (PE): 5 exchanges over 2 weeks - indicated in non-ambulatory GBS
Do NOT use corticosteroids (no benefit, may worsen outcome)
Mechanical ventilation if FVC <20 mL/kg or rapidly declining (10-30% require ICU)

Physiotherapy in Acute Phase:

Passive ROM to prevent contractures (hip/knee/ankle)
Positioning: anti-contracture, pressure relief every 2 hours
Respiratory physiotherapy: IPPB, suctioning, manual hyperinflation in ventilated patients
Venous compression devices (DVT prophylaxis)
Splinting: AFO for foot drop, wrist splints as needed

Physiotherapy in Recovery Phase:

Progressive active-assisted to active to resisted exercises as reinnervation proceeds
PNF techniques: irradiation from strong proximal muscles to recovering distal ones
Hydrotherapy: early ambulation and exercise with buoyancy
Balance and gait re-education: parallel bars → walking frame → cane → independent
Fatigue management: energy conservation; graduated return to activity
Berg Balance Scale and 6MWT to track progress
Respiratory rehabilitation: diaphragmatic breathing, incentive spirometry post-extubation
Psychological support: anxiety/depression common in prolonged GBS recovery

18. Brachial Plexus Palsy

Anatomy Review:

Roots: C5-T1; Trunks (upper C5-C6, middle C7, lower C8-T1); Divisions; Cords (lateral, posterior, medial); Terminal branches

Classification:

Upper plexus (Erb-Duchenne palsy): C5-C6 lesion; "waiter's tip" posture - shoulder adducted/internally rotated, elbow extended, forearm pronated; deltoid, biceps, brachialis, supraspinatus, infraspinatus affected
Lower plexus (Klumpke's palsy): C8-T1; intrinsic hand muscles + finger flexors; claw hand; Horner's syndrome (stellate ganglion involvement: ptosis, miosis, anhidrosis)
Total plexus: C5-T1 - flail anesthetic limb
Preganglionic vs. Postganglionic: Preganglionic (avulsion) - Tinel's negative, NCS: preserved SNAP with absent CMAP, normal EMG in paraspinals; rhomboids/serratus affected. Postganglionic - Tinel's positive, SNAP absent.

Causes: Birth trauma (shoulder dystocia), traction injuries (motorcycle accidents, fall on shoulder), penetrating trauma, tumor (Pancoast), radiation, neuralgic amyotrophy (Parsonage-Turner syndrome)

Physiotherapy Management:

Shoulder sling/arm support: prevent subluxation and stretch
Passive ROM: prevent capsular contracture (especially shoulder external rotation + abduction)
Splinting: wrist/hand splints for hand function
PNF patterns: D2 flexion pattern engages C5-C6 muscles (upper plexus)
FES: NMES to deltoid, biceps in upper plexus injury
Sensory re-education for returning sensation
Mirror therapy / mental imagery: enhances cortical reorganization
Post-surgical rehabilitation: nerve grafts, tendon transfers, free muscle transfers

19. Thoracic Outlet Syndrome (TOS)

Definition: Compression of brachial plexus, subclavian artery, or vein between the first rib and clavicle in the thoracic outlet.

Types:

Neurogenic TOS (95%): Lower trunk/medial cord (C8-T1) most commonly; ulnar distribution symptoms; wasting of intrinsic hand muscles (true neurogenic TOS - rare)
Venous TOS: Effort thrombosis (Paget-Schroetter); upper limb swelling, cyanosis
Arterial TOS: Rarest; cervical rib present; embolic complications

Provocative Tests:

Roos test (EAST): arm elevation + open/close hand 3 min - reproduces symptoms
Adson's test: radial pulse obliteration with head turned to ipsilateral side + deep breath (low sensitivity)
Wright's test: radial pulse obliteration with shoulder hyperabducted at 180°
Halstead maneuver: clavicular traction with neck laterally flexed to opposite side

Physiotherapy Management:

Posture correction: forward head posture + depressed shoulder posture correction
Scalene and pectoralis minor stretching
Strengthening: lower trapezius, serratus anterior, deep cervical flexors
Rib 1 mobilization (manipulation)
Neural mobilization (median + ulnar nerve sliding techniques)
Ergonomic advice: workstation, lifting technique
Breathing pattern retraining (diaphragmatic breathing to reduce scalene overactivity)

20. Lumbosacral Plexus Lesions

Causes: Pelvic fracture, retroperitoneal hematoma, tumor (prostate, cervical, rectal), radiation, diabetic lumbosacral plexopathy (ischemia), obstetric injury (prolonged labor, forceps), psoas abscess

Lumbar Plexus (L1-L4) - Signs:

Femoral nerve territory: quadriceps weakness, diminished knee jerk, anterior thigh/medial leg sensory loss
Obturator nerve territory: hip adductor weakness
Iliohypogastric/Ilioinguinal: groin/inguinal sensory disturbance

Sacral Plexus (L4-S3) - Signs:

Sciatic territory: hamstrings, all muscles below knee
Superior/Inferior gluteal: hip abductors, extensors
Pudendal: perineal, bladder, bowel, sexual dysfunction

Physiotherapy Management:

Identify and address cause; manage neuropathic pain
Lower limb strengthening: quadriceps, hip stabilizers
AFO for foot drop component
Pelvic floor physiotherapy (if pudendal/S3-S4 involvement)
Gait retraining
Hydrotherapy for early mobility

21. Phrenic and Intercostal Nerve Lesions

Phrenic Nerve (C3-C5):

Unilateral injury: elevated hemidiaphragm; paradoxical movement on CXR fluoroscopy; dyspnea on exertion + lying flat
Bilateral injury: severe respiratory compromise requiring ventilatory support
Causes: cardiac surgery (topical cooling), trauma, malignancy (Pancoast), cervical spine surgery, birth trauma
Management: Respiratory physiotherapy: accessory muscle training (scalenes, intercostals, SCM); glossopharyngeal breathing; diaphragm pacing (electrical) for bilateral phrenic injury; non-invasive ventilation (BiPAP)

Intercostal Nerve Lesions:

Causes: rib fractures, thoracotomy (post-thoracotomy pain syndrome), herpes zoster (post-herpetic neuralgia), thoracic surgery
Signs: band-like intercostal neuralgia; chest wall hypoesthesia; paradoxical breathing if multiple levels
Management: TENS over affected dermatomal strip; intercostal nerve block (lidocaine); breathing exercises; postural correction; gabapentin/pregabalin for post-herpetic neuralgia

22. Median Nerve Palsy

Anatomy: C6-T1; lateral and medial cord of brachial plexus; common sites of injury: wrist (carpal tunnel), elbow (pronator teres syndrome), arm (supracondylar fractures in children), high lesion in axilla/arm.

High Lesion (at/above elbow):

Pronator teres, FCR, FDS affected
FDP to index + middle, FPL (FPL test: Okay sign loss; index FDP loss)
All thenar muscles + lateral 2 lumbricals
"Orator's hand" or "hand of benediction" on attempted fist - index/middle remain extended

Low Lesion (at wrist - Carpal Tunnel Syndrome most common entrapment neuropathy):

Thenar wasting (APB, opponens, FPB)
Loss of thumb palmar abduction and opposition
Sensory: lateral 3.5 digits (palmar surface), index/middle fingertip = most sensitive indicator
Ape hand deformity: thumb adducted in plane of palm

Special Tests:

Phalen's test (wrist flexion 60 sec), Tinel's at carpal tunnel, Durkan compression test

Physiotherapy Management:

Night splint in neutral wrist position (CTS)
Neural gliding exercises (median nerve slider/tensioner)
Thenar muscle strengthening on reinnervation
Opponens splint: maintains functional pinch position
Sensory re-education
Ergonomic modification for occupational CTS
LLLT over carpal tunnel: evidence supports reduction of CTS symptoms

23. Ulnar Nerve Palsy

Anatomy: C8-T1; medial cord; common sites: medial epicondyle (cubital tunnel), Guyon's canal at wrist.

High Lesion (at elbow - Cubital Tunnel):

FCU + FDP ring/little affected
All intrinsics (interossei, hypothenar, medial 2 lumbricals) affected
Sensation: little finger, medial ring finger (both dorsal + palmar), medial palm, medial dorsum of hand

Low Lesion (at Guyon's canal - wrist):

All intrinsics except FCU + FDP
Sensation: palmar ulnar zone only
"Claw hand" deformity: ring + little fingers in MCP hyperextension + IP flexion (more severe at wrist - "ulnar paradox": high lesions less clawed because FDP also weak)

Key Signs:

Froment's sign: FPL compensates for adductor pollicis weakness when gripping paper
Jeanne's sign: MCP hyperextension of thumb with paper grip
Wartenberg's sign: little finger abducted (EDM unopposed)
Card test: cannot hold card between fingers (weak interossei)

Physiotherapy Management:

Anti-claw splint (lumbrical bar): block MCP hyperextension of ring/little
Elbow padding (cubital tunnel): protect nerve at elbow
Nerve gliding exercises: ulnar nerve
Intrinsic strengthening on reinnervation
Froment's sign reduces as adductor pollicis recovers
Sensory re-education

24. Radial Nerve Palsy

Anatomy: C5-T1 (mainly C7); posterior cord; courses in spiral groove of humerus.

High Lesion (axilla/"Saturday night palsy"):

Triceps weak + absent triceps reflex
Brachioradialis weak
Wrist drop + finger extension loss
Sensory: posterior arm, lateral dorsal forearm, dorsal lateral 3.5 digits

Spiral Groove Lesion (most common - "Holstein-Lewis fracture"):

Triceps relatively spared (its branches arise proximal to spiral groove)
Wrist drop (ECRL/ECU), finger drop (EDC, EIP)
Sensory: dorsal lateral forearm (LABC) + dorsal lateral hand (superficial radial)

Posterior Interosseous Nerve (PIN - Deep Branch):

No sensory loss (purely motor)
No wrist drop (ECRL intact)
Finger/thumb extension loss (EDC, EIP, EPL)
Wrist deviates radially on extension (ECU weak, ECRL intact)

Key Signs:

Inability to extend wrist + fingers = high/spiral groove
Finger drop without wrist drop = PIN syndrome
Weakness reproduces with resisted supination (radial tunnel entrapment)

Physiotherapy Management:

Wrist cock-up splint (dynamic extension splint preferred): restores functional grasp
Prevent web space contracture: thumb web splint
Electrical stimulation to maintain muscle bulk
Re-education exercises when reinnervation occurs
Radial nerve gliding/mobilization
Heat/ultrasound over spiral groove (for entrapment/edema)

25. Musculocutaneous Nerve Palsy

Anatomy: C5-C6; lateral cord; innervates biceps brachii, brachialis, coracobrachialis; terminates as lateral cutaneous nerve of forearm (LACNF - sensory).

Features:

Elbow flexion weakness (especially in supination)
Supination weakness (biceps is the main supinator)
Sensory loss: lateral forearm
Biceps reflex absent

Causes: Isolated injury is uncommon; seen with shoulder dislocation, heavy backpack ("rucksack palsy"), strenuous arm exercise (isolated nerve in coracobrachialis), surgical iatrogenic.

Management:

Elbow flexion orthosis if severely weak: gravity-assisted spring-loaded orthosis
Strengthening brachioradialis (radial nerve, C6) as functional elbow flexor substitute
PNF: D2 flexion pattern (involves elbow flexion)
Sensory re-education over lateral forearm

26. Anterior Interosseous Nerve (AIN) Palsy

Anatomy: Motor branch of median nerve arising just below elbow; innervates FPL, FDP (index/middle), pronator quadratus.

Features:

No sensory loss (purely motor)
Loss of IP flexion of thumb (FPL) and DIP flexion of index/middle (FDP)
Pinch deformity: Patient cannot make OK sign - both thumb IP and index DIP extend instead of flex (square pinch pattern)
Weakness of forearm pronation (pronator quadratus)

Cause: Parsonage-Turner syndrome (neuralgic amyotrophy) most common; also entrapment by fibrous bands near elbow.

Management:

Most recover spontaneously within 6-12 months (neuralgic amyotrophy)
Rest, avoid forceful pronation
Tenodesis splint to assist pinch
Monitor with serial EMG for reinnervation

27. Posterior Interosseous Nerve (PIN) Palsy

(See Radial Nerve - PIN section above)

Additional note: PIN is the deep branch of radial nerve after passing through radial tunnel. Entrapment at the arcade of Frohse (leading edge of supinator) is the most common entrapment point. "Radial tunnel syndrome" causes lateral elbow pain without motor deficit; true PIN entrapment causes finger/thumb extension loss.

28. Axillary Nerve Palsy

Anatomy: C5-C6; posterior cord; passes through quadrilateral space; innervates deltoid and teres minor; gives off upper lateral cutaneous nerve of arm (ULCNA).

Causes: Shoulder dislocation (most common), humeral neck fractures, quadrilateral space syndrome, intramuscular injection into deltoid, post-shoulder surgery.

Features:

Shoulder abduction weakness (deltoid): loss of 15-90° arc primarily
External rotation weakness (teres minor - mild)
Sensory loss: "regimental badge" area = lateral deltoid patch
Shoulder girdle flatness/dimpling from deltoid atrophy
Risk of inferior subluxation of glenohumeral joint

Management:

Sling for shoulder support: humeral cuff sling (not collar and cuff - inferior subluxation risk)
Passive ROM: full shoulder range, especially external rotation/abduction
NMES to deltoid: maintains muscle bulk during denervation
Progressive shoulder strengthening: start with shoulder shrugs (trapezius), scapular stabilizers, then deltoid retraining
Functional shoulder exercises in pool (buoyancy assists)
Proprioceptive training to restore shoulder stability

29. Long Thoracic Nerve Palsy

Anatomy: C5-C6-C7; innervates serratus anterior exclusively.

Causes: Viral neuritis (Parsonage-Turner), repetitive overhead lifting, carrying heavy backpacks, post-mastectomy/axillary surgery, post-thoracotomy.

Features:

Medial winging of scapula: medial border + inferior angle lift away from thorax
Winging worsens with forward flexion against wall (push-up position)
Shoulder abduction limited above 90° (serratus needed for upward rotation beyond 90°)
Shoulder pain from altered scapulohumeral rhythm

Test: "Wall push-up test" - push against wall with elbows extended; scapular winging visible from behind.

Management:

Scapular brace/orthosis: holds scapula against thorax
Strengthening serratus anterior on reinnervation: "serratus punches," wall push-ups progressing to floor push-ups
Compensatory training: lower trapezius strengthening
Postural correction: avoid protracted shoulders
Most cases: spontaneous recovery in 6-24 months; prognosis generally good

30. Suprascapular Nerve Palsy

Anatomy: C5-C6; from upper trunk of brachial plexus; enters suprascapular notch (under transverse scapular ligament); innervates supraspinatus; continues to spinoglenoid notch (under spinoglenoid ligament) to infraspinatus.

Causes: Ganglion cyst (at spinoglenoid notch - isolated infraspinatus weakness), overuse (volleyball, overhead sports), Parsonage-Turner, direct trauma.

Features:

Supraspinatus + infraspinatus atrophy (visible above and below spine of scapula)
Isolated infraspinatus wasting if compression at spinoglenoid notch (overhead athletes)
External rotation weakness (infraspinatus)
Shoulder abduction initiation weakness (supraspinatus)
Shoulder/lateral neck pain

Management:

Identify and treat cause (ganglion cyst: aspiration or surgery)
Shoulder external rotation strengthening with theraband
Rotator cuff rehabilitation protocol
Scapular stabilization
Overhead activity modification

31. Sciatic Nerve Palsy

Anatomy: L4-S3; largest nerve in body; exits via greater sciatic foramen below piriformis; bifurcates into common peroneal + tibial at popliteal fossa.

Causes: Posterior hip dislocation, total hip replacement (superior-posterior approach), prolonged squatting/kneeling, intramuscular injection (gluteal region - avoid upper outer quadrant), piriformis syndrome.

Features:

Combined common peroneal + tibial territory weakness
Hamstrings may be weak (knee flexion)
Foot drop + plantarflexion weakness (complete high lesion)
Sensory: entire foot + lower leg (except medial strip = saphenous/femoral)
Absent ankle jerk
Note: Peroneal division of sciatic is more vulnerable (less intraneural connective tissue)

Management:

AFO: foot drop
Stretching: Achilles tendon, hip flexors
Strengthening: hip extensors (gluteus maximus), hamstrings, all calf + foot muscles on recovery
Gait re-education
Sensory re-education for foot (high ulceration risk)
Pain management: gabapentin/pregabalin for sciatic neuropathic pain

32. Tibial Nerve Palsy

Anatomy: S1-S3; medial popliteal nerve; passes through tarsal tunnel (posterior to medial malleolus) to innervate plantar foot.

Causes: Popliteal fossa injuries, Baker's cyst, tarsal tunnel syndrome (entrapment under flexor retinaculum behind medial malleolus), calcaneal fractures.

Features:

Plantarflexion + toe flexion weakness
Calcaneal gait (heels strikes, unable to push off)
Foot/toe flexor intrinsic wasting (intrinsic minus foot)
Claw toes
Sensory: sole of foot + heel (plantar surface); great toe tip
Tarsal tunnel: burning + tingling in sole/plantar aspect; Tinel's at medial malleolus

Management:

Tarsal tunnel syndrome: night splint in neutral, orthotics to reduce pronation, corticosteroid injection, neural mobilization
Calcaneal gait: AFO with heel cushioning; shoe modification
Strengthening: tibialis posterior, toe flexors on reinnervation
Trophic foot care: plantar insensate skin is high ulceration risk

33. Common Peroneal Nerve Palsy

Anatomy: L4-S1; wraps around fibular neck (most vulnerable point); divides into deep (motor: tibialis anterior, EHL, EDL, EDB - dorsiflexion) and superficial (motor: peroneus longus/brevis - eversion; sensory: dorsum of foot).

Causes: Fibular neck fracture, prolonged leg crossing ("peroneal palsy of the slender"), cast pressure, knee surgery, prolonged squatting.

Features:

Foot drop: Weak dorsiflexion (TAS = tib anterior sign - unable to walk on heels)
Eversion weakness: Weak peronei
Equinovarus deformity: Inversion (tibialis posterior unopposed) + plantarflexion
Steppage gait
Sensory: dorsum of foot, first web space (deep peroneal), lateral leg/dorsal foot (superficial peroneal)
Ankle jerk preserved (tibial nerve intact)

Management:

AFO (drop-foot splint): dorsiflexion assist, prevents equinus contracture
Daily passive dorsiflexion + eversion stretching
Strengthening tibialis anterior, EHL, peronei on reinnervation
Gait re-education with AFO
FES to tibialis anterior (peroneal nerve stimulator): real-time dorsiflexion assist during walking
Padding over fibular head to prevent recurrence
Neural mobilization: common peroneal nerve at fibular head

34. Femoral Nerve Palsy

Anatomy: L2-L4; from lumbar plexus; innervates iliacus (in pelvis), psoas (shared with L1-L3 direct branches), and in thigh: quadriceps, sartorius; terminal branch = saphenous nerve (sensory: medial leg).

Causes: Retroperitoneal hematoma (femoral nerve most commonly injured by hematoma after anticoagulation/catheterization), iliopsoas abscess, hip replacement, lithotomy position, inguinal hernia repair, diabetic amyotrophy.

Features:

Quadriceps weakness: knee buckles on weight-bearing; patient compensates with trunk lean forward or hyperextends knee passively
Absent knee jerk
Sensory: anterior thigh + medial leg + medial foot (saphenous)
Hip flexion relatively preserved if injury distal to inguinal ligament (psoas intact)

Management:

Knee immobilizer or KAFO (knee-ankle-foot orthosis): prevents knee buckling in gait
Quadriceps strengthening: isometric, then isotonic, then functional (SLR, step-ups)
EMG biofeedback for quadriceps recruitment
Gait re-education: compensatory strategies initially
Address cause (anticoagulant review, abscess drainage)

35. Obturator Nerve Palsy

Anatomy: L2-L4; from lumbar plexus; passes through obturator foramen; innervates hip adductors (adductor longus, brevis, magnus, gracilis) and gives cutaneous branch to medial thigh.

Causes: Obturator hernia, pelvic fracture, difficult delivery, lithotomy position (hip hyperabduction), pelvic surgery, obturator hernia.

Features:

Hip adductor weakness: impaired hip adduction and internal rotation
Scissor gait tendency
Sensory: medial thigh (variable)
Trendelenburg pattern absent (gluteus medius intact)

Management:

Hip adductor strengthening on reinnervation
Gait training: prevent excessive lateral sway
Stretching hip abductors (antagonists may tighten)
Address precipitating cause

36. Pudendal Nerve Palsy

Anatomy: S2-S4; passes through greater sciatic foramen (below piriformis), then lesser sciatic foramen (via Alcock's canal); branches: dorsal nerve of penis/clitoris, perineal nerve, inferior rectal nerve.

Causes: Prolonged cycling (cyclist's palsy), childbirth trauma (perineal laceration, forceps delivery), pelvic floor surgery, pudendal neuralgia, sacral fracture.

Features:

Perineal numbness + paresthesias
Erectile dysfunction / reduced clitoral sensation
Urinary incontinence (urethral sphincter weakness) or retention
Fecal incontinence (external anal sphincter)
Absent bulbocavernosus reflex
Absent anal wink reflex

Management:

Pelvic floor physiotherapy: biofeedback-assisted sphincter re-education
Bladder training program: scheduled voiding, pelvic floor exercises
Interferential therapy to perineum: pain relief + neuromuscular stimulation
Positions: avoid prolonged sitting (pressure off pudendal canal)
Specialist cycling saddle modification
Pudendal nerve block (diagnostic + therapeutic)
SNS (Sacral Nerve Stimulation) for refractory cases

PART IV: QUICK REFERENCE SUMMARY TABLE

Condition	Deformity	Motor Loss	Sensory Loss	Key Test	Splint
Radial nerve (spiral groove)	Wrist drop	Wrist + finger extension	Dorsal forearm + hand	Inability to extend wrist	Wrist cock-up
Median nerve (low - CTS)	Ape hand	Thumb abduction/opposition	Lateral 3.5 digits palm	Phalen's, Tinel's, Durkan	Wrist neutral night splint
Ulnar nerve (low)	Claw hand (ring/little)	Intrinsics, hypothenar	Medial 1.5 digits	Froment, card test	Anti-claw lumbrical bar
Axillary nerve	Deltoid atrophy	Shoulder abduction	Lateral deltoid patch	Deltoid MMT	Arm sling
Long thoracic	Medial scapular winging	Serratus anterior	Nil	Wall push-up	Scapular brace
Musculocutaneous	-	Elbow flexion/supination	Lateral forearm	Biceps reflex absent	Elbow flexion assist
Common peroneal	Foot drop/equinovarus	Dorsiflexion, eversion	Dorsum of foot	Walk on heels (TAS)	AFO
Tibial	Calcaneal gait	Plantarflexion, toe flexion	Plantar foot	Tinel's at medial malleolus	AFO (heel cushion)
Femoral	Knee buckling	Quadriceps	Anterior thigh, medial leg	Knee jerk absent	KAFO
Sciatic	Foot drop + plantarflexion	Hamstrings + all below knee	Entire foot (except medial)	-	AFO ± knee support

KEY REFERENCES

Patterns of peripheral nerve injury, axonal vs. demyelinating neuropathy: Robbins & Kumar Basic Pathology, 10e
Hereditary Motor Sensory Neuropathy (CMT): Bradley and Daroff's Neurology in Clinical Practice
Guillain-Barré Syndrome - diagnostic criteria and subtypes: Bradley and Daroff's Neurology in Clinical Practice
Physical therapy modalities for peripheral nerve injury (ultrasound, LLLT, ES): Frontiers in Neurology, 2025 review
Thoracic outlet syndrome anatomy and management: Sabiston Textbook of Surgery, 21e

Patterns of peripheral nerve damage: healthy axons (A), axonal degeneration and demyelination (B), and regeneration (C)

Fig: Patterns of peripheral nerve damage - Robbins & Kumar Basic Pathology

Mnd

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motor neuron disease ALS types pathophysiology clinical features management 2024 guidelines

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motor neuron disease physiotherapy management respiratory riluzole tofersen 2024

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I now have rich textbook content from Goldman-Cecil Medicine, Bradley & Daroff's Neurology, Robbins Pathology, and Adams & Victor's Neurology. Let me compile the full study notes.

Motor Neuron Disease (MND) - Full Study Notes

1. OVERVIEW AND DEFINITION

Motor Neuron Disease (MND) is a fatal, progressive neurodegenerative disorder characterized by the selective degeneration of upper motor neurons (UMN) in the motor cortex and lower motor neurons (LMN) in the brainstem and spinal cord, leading to progressive muscle weakness, wasting, and ultimately respiratory failure.

The term MND is used as an umbrella term (especially in the UK/Australia) covering several clinical subtypes. In the USA, ALS (Amyotrophic Lateral Sclerosis) is used synonymously with the most common form. It is also known as:

Charcot disease (first described by Jean-Martin Charcot, 1869)
Lou Gehrig's disease (USA - after the baseball player diagnosed in 1939)

(Goldman-Cecil Medicine, 22e; Bradley and Daroff's Neurology)

2. EPIDEMIOLOGY

Parameter	Data
Incidence	~2 per 100,000/year
Prevalence	5-8 per 100,000
Mean age of onset	55-60 years
Sex ratio	Male:Female = 1.2-1.6:1 (slight female predominance in bulbar onset)
Familial vs. sporadic	~90% sporadic (SALS); 5-10% familial (FALS)
Median survival	3 years from symptom onset (range: 2-5 years; some 10+ years)
Mortality	Invariably fatal; respiratory failure is the usual cause

Risk Factors: Increasing age, male sex, genetic susceptibility; possible: strenuous physical exercise, head trauma, lead exposure.

3. TYPES / CLINICAL VARIANTS

3.1 Classic ALS (Most Common - 80%)

Combined UMN + LMN degeneration
Affects all four limbs and bulbar musculature
Spinal onset (75%): asymmetric distal limb weakness; foot drop or hand wasting
Bulbar onset (25%): dysarthria, dysphagia, dysphonia first

3.2 Progressive Bulbar Palsy (PBP)

LMN predominant involving cranial motor nuclei (IX, X, XII)
Flaccid dysarthria, dysphagia, tongue wasting + fasciculations
Pseudobulbar palsy component (UMN) superimposed: emotional lability, brisk jaw jerk, spastic dysarthria
Worst prognosis of all MND variants; rapid respiratory compromise

3.3 Primary Lateral Sclerosis (PLS)

Pure UMN degeneration only
Progressive spastic paraparesis / tetraparesis
Hyperreflexia, spasticity, Babinski sign; NO wasting or fasciculations
Most benign variant: slower progression, longer survival (10+ years)
Diagnosis of exclusion; 10-15% eventually develop LMN signs and reclassify as ALS

3.4 Progressive Muscular Atrophy (PMA)

Pure LMN degeneration (anterior horn cells)
Flaccid weakness, wasting, fasciculations; areflexia
NO UMN signs; resembles SMA in adults
Intermediate prognosis; most eventually develop UMN signs
Must exclude Kennedy disease, multifocal motor neuropathy, SMA

3.5 Flail Arm / Flail Leg Syndrome (Brachial / Crural Amyotrophy)

Flail arm (Vulpian-Bernhart): bilateral proximal arm weakness + wasting; legs and bulbar spared initially
More common in men; longer survival than typical ALS
Flail leg syndrome: bilateral distal leg weakness (foot drop)

3.6 Kennedy Disease (Bulbospinal Muscular Atrophy)

X-linked; CAG repeat expansion in androgen receptor gene
Men only; LMN only (no UMN signs)
Proximal limb weakness, oropharyngeal weakness, gynecomastia, infertility
Key ALS mimic - distinguished by androgen receptor testing

3.7 Spinal Muscular Atrophy (SMA) - Related LMN Disorders

Type	Onset	Features	Prognosis
SMA I (Werdnig-Hoffmann)	Preterm - 6 months	Floppy baby, cannot sit	Few survive 1 year
SMA II (Dubowitz)	6-15 months	Cannot stand	Variable; respiratory
SMA III (Kugelberg-Welander)	1 yr - adolescence	Proximal leg weakness	Slowly progressive
SMA IV	After 30 years	Proximal + diaphragm	Wheelchair; normal life span

(Adams and Victor's Principles of Neurology, 12e)

4. PATHOPHYSIOLOGY

4.1 Genetics

90% sporadic - unknown cause; complex interaction of genetic susceptibility + environment
C9ORF72 hexanucleotide (GGGGCC) repeat expansion: most common genetic cause; accounts for 40-50% of familial ALS and 7-10% of sporadic ALS
- Defective RNA processing: RNA foci sequester RNA-binding proteins; dipeptide repeat proteins are neurotoxic
SOD1 (Superoxide dismutase 1) mutations on chromosome 21: 20% of familial ALS (2% overall)
- Misfolded SOD1 proteins trigger unfolded protein response + prion-like propagation
- Oxidative stress, excitotoxicity, mitochondrial dysfunction, impaired axonal transport
TDP-43 (TARDBP gene): RNA-binding protein; abnormal cytoplasmic inclusions are the hallmark of most ALS (both sporadic and familial); also in frontotemporal lobar degeneration (FTLD)
FUS (FUS/TLS gene): another RNA-binding protein; associated with juvenile ALS
Other genes: ALSIN, senataxin, angiogenin, VAPB, dynactin, TBK1, ataxin-2 intermediate repeats

4.2 Pathogenic Mechanisms

Excitotoxicity: excess glutamate → Ca²⁺ influx → neuronal death (basis for riluzole)
Oxidative stress: mutant SOD1 → reactive oxygen species
Protein aggregation: TDP-43, SOD1, FUS inclusions disrupt normal cell function
Mitochondrial dysfunction: impaired energy supply to high-demand motor neurons
Neuroinflammation: activated microglia + astrocytes accelerate neuronal injury
Impaired axonal transport: motor neurons are extremely long; transport defects are catastrophic

4.3 Pathology (Morphology)

Macroscopic: Atrophy of precentral gyrus (motor cortex); sclerosis and pallor of lateral corticospinal tracts; thinning of ventral (anterior) spinal nerve roots and hypoglossal nerves; visible muscle wasting
Microscopic: Loss of anterior horn cells (>50% lost by time of death); reactive astrocytic gliosis in spinal cord gray matter; TDP-43 cytoplasmic inclusions; neurogenic atrophy of skeletal muscle (grouped fiber atrophy)
Spared: Onuf's nucleus (sacral sphincter motor neurons - explains preserved continence); extraocular muscle nuclei; sensory pathways

(Robbins & Kumar Basic Pathology 10e; Goldman-Cecil Medicine, 22e)

5. CLINICAL FEATURES

5.1 Motor Features (Combined UMN + LMN)

LMN signs:

Weakness (progressive, often asymmetric initially)
Muscle wasting / atrophy
Fasciculations (spontaneous, visible especially in large proximal muscles)
Hyporeflexia / areflexia (in PMA or late ALS)
Cramps (often an early symptom)
Flaccidity

UMN signs:

Hyperreflexia (paradoxically brisk reflexes in wasted limbs - a hallmark of ALS)
Spasticity
Babinski sign (extensor plantar response)
Clonus
Pseudobulbar affect (involuntary laughing/crying)
Jaw jerk brisk (pseudobulbar palsy component)

5.2 Regional Onset Pattern

Spinal onset (75%):

Distal, asymmetric; typically one limb first
Upper limb: thenar + intrinsic hand wasting, clumsy hand, dropping objects
Lower limb: foot drop, stumbling; pyramidal pattern (hip flexion + ankle dorsiflexion most affected early)
Muscle cramps often precede weakness

Bulbar onset (25%; especially elderly women):

Dysarthria: initially on fatigue; progresses to mixed spastic-flaccid dysarthria (tight, strained + nasal quality)
Dysphagia: liquids before solids initially
Sialorrhoea (drooling - from reduced swallowing frequency)
Weak, wasted, fasciculating tongue
Brisk jaw jerk; weak facial muscles
Weight loss, aspiration pneumonia

Respiratory involvement (later; rarely first):

Diaphragm weakness: orthopnoea, paradoxical abdominal movement on inspiration
Nocturnal hypoventilation: interrupted sleep, morning headaches, daytime somnolence, anorexia (CO₂ retention)
Dyspnea on exertion; reduced FVC

Neck:

"Dropped head syndrome": neck extensor weakness - chin-on-chest posture (late)

5.3 Preserved Functions

Extraocular movements (even in very advanced ALS - allows communication via eye tracking)
Sphincter control / continence (Onuf's nucleus spared)
Sensation is generally intact
Proprioception preserved

5.4 Cognitive/Behavioral Features

~5% develop overt frontotemporal dementia (FTD) (ALS-FTD overlap)
Up to 50% have subtle frontal lobe dysfunction without overt dementia
C9ORF72 variant especially associated with cognitive/behavioral changes + family history of dementia

6. DIAGNOSIS

6.1 Awaji-Shima Criteria (Revised El Escorial Criteria)

Required for diagnosis:

Evidence of LMN degeneration (clinical, electrophysiologic, or neuropathologic)
Evidence of UMN degeneration (clinical examination)
Progressive spread of symptoms/signs within or to other regions
Absence of other disease processes explaining findings

Diagnostic levels of certainty:

Level	Criteria
Definite ALS	UMN + LMN signs in bulbar region + ≥2 spinal regions, OR UMN + LMN in 3 spinal regions
Probable ALS	UMN + LMN signs in ≥2 regions, with UMN signs rostral to LMN signs
Possible ALS	UMN + LMN in 1 region only, OR UMN signs in ≥2 regions, OR LMN signs rostral to UMN signs

(Goldman-Cecil Medicine, 22e)

6.2 Investigations

Electrodiagnostic (most important):

EMG: Active denervation (fibrillations, positive sharp waves, fasciculation potentials) + chronic reinnervation (large-amplitude, long-duration, polyphasic MUAPs) in ≥2 regions not explained by single nerve/root lesion
NCS: Normal or near-normal motor conduction velocities + amplitudes in early ALS; distinguishes from demyelinating neuropathies
No conduction block (rules out multifocal motor neuropathy)

Neuroimaging:

MRI brain + spine: to exclude structural mimics (cervical myelopathy, brain tumor, syrinx); may show T2 hyperintensity along corticospinal tracts in ALS

Blood tests (to exclude mimics):

FBC, CRP, ESR, thyroid function, calcium, parathyroid hormone
Serum protein electrophoresis (paraprotein neuropathy)
CK (elevated in ALS + SMA from denervation)
Anti-GM1 antibodies (multifocal motor neuropathy)
Hexosaminidase A+B (GM2 gangliosidosis mimic)
Genetic panel (SOD1, C9ORF72, FUS, TDP-43 in familial/atypical cases)

CSF: Usually normal; elevated neurofilament light (NfL) and phosphorylated neurofilament heavy (pNfH) are promising biomarkers

Respiratory function tests (baseline + serial):

Forced Vital Capacity (FVC): <50% predicted = indication for NIV
Sniff Nasal Inspiratory Pressure (SNIP): sensitive for diaphragm weakness
Peak Cough Flow (PCF): <270 L/min = risk of secretion retention

7. DIFFERENTIAL DIAGNOSIS

Conditions that can mimic MND (ALS mimics):

MND Variant	Key Mimics	Distinguishing Features
PMA (LMN only)	Kennedy disease	AR gene testing; gynecomastia in Kennedy
PMA	Multifocal motor neuropathy (MMN)	Anti-GM1 antibodies; conduction block on NCS; responds to IVIG
PMA	Spinal muscular atrophy (SMA)	SMN gene deletion/mutation; childhood onset
ALS	Cervical myelopathy + radiculopathy	MRI spine; pure sensory signs; no fasciculations at multiple levels
ALS	Myasthenia gravis	Fatigability; no fasciculations; normal NCS/EMG; anti-AChR positive
PLS (UMN only)	Primary progressive MS	MRI lesions; oligoclonal bands in CSF
ALS	Thyrotoxicosis	TFTs; fasciculations + thyroid history
Bulbar ALS	Post-polio syndrome	History of polio; no UMN signs; stable/slowly progressive

8. MANAGEMENT

8.1 Multidisciplinary Team (MDT)

MND is best managed in specialized MND/ALS centers:

Neurologist (diagnosis, disease-modifying therapy)
Physiotherapist (mobility, respiratory, exercise)
Occupational therapist (ADL aids, environmental adaptation)
Speech and language therapist (AAC, dysarthria, dysphagia)
Dietitian (nutritional support, PEG timing)
Respiratory physician (NIV, cough assist)
Palliative care team (pain, end-of-life planning)
Nurse specialist / case coordinator
Social worker, psychologist

(Goldman-Cecil Medicine, 22e)

8.2 Disease-Modifying Pharmacotherapy

Riluzole (first-line):

Mechanism: sodium channel blocker; reduces excitotoxicity by inhibiting presynaptic glutamate release
Benefit: prolongs survival by approximately 3 months (modest but the only proven survival benefit in most patients)
Dose: 50 mg twice daily
Side effects: nausea, fatigue, elevated liver enzymes (LFTs monitoring needed)

Edaravone:

Mechanism: free radical scavenger / antioxidant
Approved in Japan (2015), USA (2017), certain other countries
Benefit: slows functional decline in a subset of early ALS patients (ALSFRS-R)
Given as IV infusion (original formulation) or oral suspension (newer)

Tofersen (antisense oligonucleotide - ASO):

Specifically for SOD1-ALS
Reduces SOD1 protein levels; lowers neurofilament biomarkers
FDA-approved 2023 (accelerated approval); first genotype-specific ALS therapy

Masitinib:

Tyrosine kinase inhibitor; targets neuroinflammation (microglia/mast cells)
Phase III trial data under regulatory review (as of 2024)

(Adams and Victor's Principles of Neurology, 12e; Goldman-Cecil Medicine, 22e)

8.3 Symptomatic Management

Symptom	Management
Spasticity	Baclofen (oral), tizanidine, dantrolene; physiotherapy; stretching
Cramps	Quinine sulfate (limited evidence); baclofen; magnesium
Fasciculations	Reassurance; mexiletine
Sialorrhoea	Anticholinergics (amitriptyline, hyoscine patch, glycopyrrolate); botulinum toxin to parotid glands; salivary gland radiotherapy
Thick secretions	Mucolytics (N-acetylcysteine, carbocisteine); nebulized saline; cough assist device
Pseudobulbar affect	Nuedexta (dextromethorphan + quinidine) - FDA approved; amitriptyline
Neuropathic pain	Gabapentin, pregabalin, amitriptyline
Anxiety/depression	SSRIs (citalopram, sertraline); counselling
Insomnia	Amitriptyline; melatonin; treat nocturnal hypoventilation

8.4 Nutritional Management

Malnutrition is an independent poor prognostic factor in ALS
Dysphagia assessment: videofluoroscopy, fiberoptic endoscopic evaluation of swallowing (FEES)
High-calorie diet; modified food/liquid textures per SLT
Percutaneous endoscopic gastrostomy (PEG):
- Indicated when: weight loss >10% body weight, or FVC drops below 50% predicted (increased procedural risk at lower FVC)
- Improves nutrition, quality of life; survival benefit debated

8.5 Respiratory Management

Serial monitoring:

FVC every 3 months; SNIP, PCF
Nocturnal oximetry if symptoms of nocturnal hypoventilation

Non-Invasive Ventilation (NIV - BiPAP):

Indications: FVC <50% or rapidly falling; SNIP <40 cmH₂O; symptomatic nocturnal hypoventilation; orthopnoea
Extends survival by average 7-12 months in non-bulbar ALS; improves quality of life and sleep
Initiation at night first; titrate to daytime use as disease progresses
Benefit reduced in severe bulbar ALS (unable to tolerate mask due to weak perioral muscles)

Cough Assistance:

Manual assisted cough: physiotherapist applies abdominal thrust during cough effort
Mechanical insufflation-exsufflation (MI-E / CoughAssist): delivers positive pressure breath then rapid negative pressure - clears secretions effectively
Target PCF >270 L/min with assistance

Invasive Ventilation (tracheostomy):

Patient choice only (requires full counselling)
Extends life indefinitely but with significant burden
Requires around-the-clock carers; quality of life highly variable

8.6 Communication

Augmentative and Alternative Communication (AAC):
- Voice amplifiers (early dysarthria)
- Voice banking: record speech for synthesis before it deteriorates
- Text-to-speech apps (e.g., Proloquo2Go, Grid)
- Eye-gaze technology (Tobii): allows communication via eye tracking when all limb function lost (critical in locked-in state)

8.7 Physiotherapy Management in MND

Physiotherapy plays a role across all disease stages:

Assessment:

Serial muscle strength testing (MMT, dynamometry)
Respiratory function (FVC, PCF, SNIP)
Gait and mobility assessment
Berg Balance Scale, Timed Up and Go
ALSFRS-R (ALS Functional Rating Scale-Revised): tracks function across domains

General Principles:

Exercise should be moderate intensity - overwork weakness (eccentric damage to denervated muscle) must be avoided
Resistance exercise: low resistance, high repetition; submaximal; focus on activities of daily living
Fatigue management: energy conservation, prioritization of activities
Aerobic exercise: evidence suggests moderate-intensity aerobic exercise (cycling, swimming) may slow decline and is safe

Maintaining Mobility and Function:

Stretching and ROM exercises: daily passive/active stretching to prevent contractures
Spasticity management: positioning, stretching, splinting, hydrotherapy; oral baclofen/tizanidine as adjunct
Foot drop: AFO (ankle-foot orthosis) - improves safety and gait efficiency
Cervical collar: for dropped head syndrome (soft collar first; rigid if severe)
Falls prevention: home hazard assessment, walking aids (rollator frame with seat), wheelchair as needed

Assistive Devices Progression (timely provision is key):

Walking stick → crutch → rollator frame → manual wheelchair → powered wheelchair (when hand function lost)
Hospital-type bed with pressure-relieving mattress; bed rail; ceiling hoist
Stair lift / ramp for home access
Bath/shower aids; commode

Respiratory Physiotherapy:

Role: maintain airway clearance, support breathing efficiency, manage secretions
Breathing exercises: diaphragmatic breathing, inspiratory muscle training (limited evidence; avoid fatigue)
Glossopharyngeal breathing (GPB): augments ventilation when conventional breathing compromised
Manual chest physiotherapy / percussion: loosens secretions
Cough augmentation: manual assisted cough, CoughAssist device
NIV setup and monitoring: physiotherapist often involved in mask fitting, acclimatization, monitoring
Positioning: upright seating improves FVC; avoid supine in advanced disease

Palliative Physiotherapy:

Comfort positioning: pressure relief, limb elevation for oedema, pain relief positioning
Passive movements to maintain comfort and prevent contractures
Lymphoedema management for dependent limbs
Breathlessness management: fan directed at face (stimulates trigeminal receptors, reduces dyspnoea sensation); pursed lip breathing
Opioids (low-dose morphine) for refractory dyspnoea are appropriate and do not hasten death

(Hospice Foundation Ireland Physiotherapy Guidelines for MND; CSP; NICE NG42)

9. PROGNOSIS

Poor prognostic factors:

Older age at onset
Bulbar onset (shorter survival ~2 years vs. 3-4 years for limb onset)
Rapid functional decline (slope of ALSFRS-R fall)
Low FVC at diagnosis
Low BMI / early weight loss
C9ORF72 variant (more cognitive involvement)
Shorter time from onset to diagnosis

Better prognostic factors:

Young onset
PLS variant (10+ years)
Flail arm/leg variant (4-5 years)
Limb onset

Cause of death: Respiratory failure (aspiration pneumonia or progressive hypoventilation) in the vast majority.

10. KEY OUTCOME MEASURES

Scale	Use
ALSFRS-R (ALS Functional Rating Scale-Revised)	12-item functional scale covering speech, swallowing, handwriting, dressing, turning in bed, walking, climbing stairs, dyspnoea, orthopnoea, respiratory insufficiency; 0-48; tracks decline
FVC (% predicted)	Respiratory function; primary survival predictor
SNIP (Sniff Nasal Inspiratory Pressure)	Diaphragm strength; <40 cmH₂O = poor prognosis
PCF (Peak Cough Flow)	Airway clearance; <270 L/min = risk
Norris Scale / Appel ALS Scale	Older functional tools
ALS Assessment Questionnaire (ALSAQ-40)	Quality of life

11. SUMMARY TABLE: MND VARIANTS AT A GLANCE

Variant	UMN Signs	LMN Signs	Region	Prognosis
Classic ALS	Yes	Yes	Spinal ± bulbar	Median 3 years
Bulbar-onset ALS	Yes (pseudobulbar)	Yes (flaccid bulbar)	Bulbar first	2-3 years (worst)
PBP	Minimal	Yes	Bulbar only (initially)	Poor
PLS	Yes only	No	Spinal	Best (10+ years)
PMA	No	Yes only	Spinal	Intermediate
Flail arm	UMN later	Yes (arms)	Cervical	Better (>3 years)
Flail leg	UMN later	Yes (legs)	Lumbosacral	Better

KEY REFERENCES

Pathology, genetics, morphology: Robbins & Kumar Basic Pathology 10e; Goldman-Cecil Medicine 22e
Clinical classification, subtypes, EMG criteria: Bradley and Daroff's Neurology in Clinical Practice
Riluzole, edaravone, masitinib treatment: Adams and Victor's Principles of Neurology 12e; Goldman-Cecil Medicine 22e
Physiotherapy guidelines: Hospice Foundation Ireland MND Physiotherapy Guidelines; NICE NG42
2024 EAN ALS Management Guideline: European Academy of Neurology, 2024

Make a presentation on physiotherapy progression through MND stages

Reading File

Running Command

mkdir -p /tmp/workspace/mnd-pptx && ls /tmp/workspace/mnd-pptx/

Writing File

~/mnd-pptx/create_mnd_pptx.py

from pptx import Presentation
from pptx.util import Inches, Pt, Emu
from pptx.dml.color import RGBColor
from pptx.enum.text import PP_ALIGN, MSO_ANCHOR
from pptx.oxml.ns import qn
from lxml import etree
from io import BytesIO

# ── Colour palette ──────────────────────────────────────────────────────────
NAVY        = RGBColor(0x0D, 0x2B, 0x55)   # dark header bg
TEAL        = RGBColor(0x00, 0x7A, 0x8A)   # accent / stage bars
GREEN       = RGBColor(0x2E, 0x86, 0x48)   # Stage 1
AMBER       = RGBColor(0xE8, 0x8C, 0x17)   # Stage 2
ORANGE      = RGBColor(0xD4, 0x4F, 0x1C)   # Stage 3
PURPLE      = RGBColor(0x6A, 0x35, 0x8A)   # Stage 4 / palliative
WHITE       = RGBColor(0xFF, 0xFF, 0xFF)
LIGHT_GREY  = RGBColor(0xF2, 0xF4, 0xF7)
MID_GREY    = RGBColor(0xCC, 0xD0, 0xD8)
DARK_GREY   = RGBColor(0x3C, 0x3C, 0x3C)
STAGE_COLORS = [GREEN, AMBER, ORANGE, PURPLE]

prs = Presentation()
prs.slide_width  = Inches(13.333)
prs.slide_height = Inches(7.5)
blank = prs.slide_layouts[6]


# ── Helpers ──────────────────────────────────────────────────────────────────

def add_rect(slide, x, y, w, h, fill_rgb, alpha_pct=None):
    shape = slide.shapes.add_shape(1, Inches(x), Inches(y), Inches(w), Inches(h))
    shape.line.fill.background()
    shape.fill.solid()
    shape.fill.fore_color.rgb = fill_rgb
    return shape


def add_text(slide, text, x, y, w, h,
             font_size=16, bold=False, color=DARK_GREY,
             align=PP_ALIGN.LEFT, wrap=True, italic=False,
             v_anchor=MSO_ANCHOR.TOP):
    tb = slide.shapes.add_textbox(Inches(x), Inches(y), Inches(w), Inches(h))
    tf = tb.text_frame
    tf.word_wrap = wrap
    tf.margin_left = Inches(0.05)
    tf.margin_right = Inches(0.05)
    tf.margin_top = Pt(2)
    tf.margin_bottom = Pt(2)
    tf.vertical_anchor = v_anchor
    p = tf.paragraphs[0]
    p.alignment = align
    run = p.add_run()
    run.text = text
    run.font.size = Pt(font_size)
    run.font.bold = bold
    run.font.italic = italic
    run.font.color.rgb = color
    run.font.name = "Calibri"
    return tb


def add_bullet_box(slide, items, x, y, w, h,
                   font_size=13, color=DARK_GREY, title=None,
                   title_color=NAVY, title_size=14, bg=None, pad=0.12):
    if bg:
        add_rect(slide, x, y, w, h, bg)
    tb = slide.shapes.add_textbox(Inches(x + pad), Inches(y + pad),
                                  Inches(w - 2*pad), Inches(h - 2*pad))
    tf = tb.text_frame
    tf.word_wrap = True
    tf.margin_left   = Inches(0.05)
    tf.margin_right  = Inches(0.05)
    tf.margin_top    = Pt(2)
    tf.margin_bottom = Pt(2)

    first = True
    if title:
        p = tf.paragraphs[0] if first else tf.add_paragraph()
        first = False
        run = p.add_run()
        run.text = title
        run.font.size = Pt(title_size)
        run.font.bold = True
        run.font.color.rgb = title_color
        run.font.name = "Calibri"

    for item in items:
        p = tf.add_paragraph() if not first else tf.paragraphs[0]
        first = False
        p.space_before = Pt(2)
        run = p.add_run()
        run.text = f"• {item}"
        run.font.size = Pt(font_size)
        run.font.color.rgb = color
        run.font.name = "Calibri"


def header_bar(slide, title, subtitle=None):
    """Dark navy top bar with title."""
    add_rect(slide, 0, 0, 13.333, 1.1, NAVY)
    add_text(slide, title,
             0.3, 0.08, 12.5, 0.65,
             font_size=28, bold=True, color=WHITE,
             align=PP_ALIGN.LEFT, v_anchor=MSO_ANCHOR.MIDDLE)
    if subtitle:
        add_text(slide, subtitle,
                 0.3, 0.72, 12.5, 0.35,
                 font_size=14, bold=False, color=MID_GREY,
                 align=PP_ALIGN.LEFT)
    # teal accent line below header
    add_rect(slide, 0, 1.1, 13.333, 0.06, TEAL)


def stage_label(slide, label, x, y, w, h, color):
    add_rect(slide, x, y, w, h, color)
    add_text(slide, label, x, y, w, h,
             font_size=12, bold=True, color=WHITE,
             align=PP_ALIGN.CENTER, v_anchor=MSO_ANCHOR.MIDDLE)


# ═══════════════════════════════════════════════════════════════════════════
# SLIDE 1 – Title Slide
# ═══════════════════════════════════════════════════════════════════════════
slide = prs.slides.add_slide(blank)

# Full background gradient simulation with two rects
add_rect(slide, 0, 0, 13.333, 7.5, NAVY)
add_rect(slide, 0, 4.8, 13.333, 2.7, TEAL)

# Decorative accent
add_rect(slide, 0, 4.6, 13.333, 0.22, RGBColor(0xFF, 0xFF, 0xFF))

# Main title
add_text(slide,
         "Physiotherapy Progression\nThrough MND Stages",
         1.0, 1.0, 11.0, 3.0,
         font_size=40, bold=True, color=WHITE,
         align=PP_ALIGN.CENTER, v_anchor=MSO_ANCHOR.MIDDLE)

# Subtitle
add_text(slide,
         "Motor Neuron Disease · Stage-by-Stage Rehabilitation Framework",
         1.0, 3.8, 11.0, 0.6,
         font_size=18, bold=False, color=MID_GREY,
         align=PP_ALIGN.CENTER)

# Stage pills at bottom
stage_labels = ["Stage 1\nEarly", "Stage 2\nMiddle", "Stage 3\nLate", "Stage 4\nPalliative"]
for i, (lbl, col) in enumerate(zip(stage_labels, STAGE_COLORS)):
    x = 1.0 + i * 2.9
    add_rect(slide, x, 5.2, 2.5, 0.9, col)
    add_text(slide, lbl, x, 5.2, 2.5, 0.9,
             font_size=13, bold=True, color=WHITE,
             align=PP_ALIGN.CENTER, v_anchor=MSO_ANCHOR.MIDDLE)

add_text(slide, "Based on NICE NG42 | Irish MND Guidelines | Goldman-Cecil Medicine",
         0, 6.9, 13.333, 0.4,
         font_size=10, color=RGBColor(0xCC, 0xDD, 0xFF),
         align=PP_ALIGN.CENTER)


# ═══════════════════════════════════════════════════════════════════════════
# SLIDE 2 – MND Overview: What is MND?
# ═══════════════════════════════════════════════════════════════════════════
slide = prs.slides.add_slide(blank)
add_rect(slide, 0, 0, 13.333, 7.5, LIGHT_GREY)
header_bar(slide, "What is Motor Neuron Disease (MND)?",
           "Understanding the disease before planning rehabilitation")

# Left column: key facts
add_bullet_box(slide,
    ["Progressive degeneration of UMN (motor cortex) & LMN (brainstem, spinal cord)",
     "Incidence ~2/100,000 per year | Prevalence 5–8/100,000",
     "Mean age of onset: 55–60 years | Male > Female",
     "Median survival: 2–5 years (bulbar onset worst; PLS best)",
     "Cause of death: respiratory failure in vast majority"],
    x=0.3, y=1.3, w=6.5, h=3.5,
    font_size=13, title="Key Facts", title_color=NAVY, bg=WHITE)

# Right column: types
add_bullet_box(slide,
    ["Classic ALS – mixed UMN + LMN (most common, 80%)",
     "Progressive Bulbar Palsy (PBP) – bulbar onset, worst prognosis",
     "Primary Lateral Sclerosis (PLS) – UMN only, best prognosis",
     "Progressive Muscular Atrophy (PMA) – LMN only",
     "Flail Arm / Flail Leg – segmental; longer survival"],
    x=7.0, y=1.3, w=6.0, h=3.5,
    font_size=13, title="Clinical Variants", title_color=TEAL, bg=WHITE)

# Bottom bar: PT role
add_rect(slide, 0.3, 5.1, 12.7, 2.0, NAVY)
add_text(slide,
         "Role of Physiotherapy in MND",
         0.5, 5.15, 12.3, 0.45,
         font_size=14, bold=True, color=WHITE)
add_text(slide,
         "Physiotherapy does NOT cure MND, but significantly improves quality of life, prolongs function, prevents "
         "complications, and supports respiratory health across all stages. Management is multidisciplinary: "
         "neurologist, PT, OT, SLT, dietitian, respiratory physician, palliative care.",
         0.5, 5.6, 12.3, 1.4,
         font_size=12, color=LIGHT_GREY, wrap=True)


# ═══════════════════════════════════════════════════════════════════════════
# SLIDE 3 – Disease Progression Timeline / Stages Overview
# ═══════════════════════════════════════════════════════════════════════════
slide = prs.slides.add_slide(blank)
add_rect(slide, 0, 0, 13.333, 7.5, LIGHT_GREY)
header_bar(slide, "MND Stages & Physiotherapy Framework",
           "Staging guides goal-setting, exercise intensity, and equipment provision")

# Timeline arrow base
add_rect(slide, 0.3, 2.15, 12.4, 0.22, MID_GREY)

stage_data = [
    ("STAGE 1", "Early / Diagnosis", GREEN,
     ["Mild focal weakness", "Near-normal mobility", "Diagnosis shock"],
     0.3),
    ("STAGE 2", "Moderate / Functional Loss", AMBER,
     ["Spreading weakness", "Mobility aids needed", "Fatigue prominent"],
     3.55),
    ("STAGE 3", "Advanced / Dependence", ORANGE,
     ["Severe weakness", "Wheelchair use", "Respiratory compromise"],
     6.8),
    ("STAGE 4", "End-Stage / Palliative", PURPLE,
     ["Minimal movement", "Ventilatory support", "Comfort focus"],
     10.05),
]

for label, sub, color, features, x in stage_data:
    w = 3.0
    # Stage box
    add_rect(slide, x, 1.3, w, 0.75, color)
    add_text(slide, f"{label}\n{sub}", x, 1.3, w, 0.75,
             font_size=11, bold=True, color=WHITE,
             align=PP_ALIGN.CENTER, v_anchor=MSO_ANCHOR.MIDDLE)
    # Arrow node
    add_rect(slide, x + w/2 - 0.12, 2.02, 0.24, 0.38, color)
    # Features below arrow
    feat_text = "\n".join(f"› {f}" for f in features)
    add_text(slide, feat_text, x, 2.5, w, 1.5,
             font_size=11, color=DARK_GREY, wrap=True)

# ALSFRS-R scale indicator
add_rect(slide, 0.3, 4.15, 12.4, 0.06, MID_GREY)
add_text(slide, "ALSFRS-R Scale (48 → 0)", 0.3, 4.25, 3.0, 0.35,
         font_size=11, bold=True, color=DARK_GREY)
vals = ["~40–48", "~25–39", "~10–24", "~0–9"]
for i, (val, x) in enumerate(zip(vals, [0.3, 3.55, 6.8, 10.05])):
    add_rect(slide, x, 4.25, 3.0, 0.35, STAGE_COLORS[i])
    add_text(slide, val, x, 4.25, 3.0, 0.35,
             font_size=12, bold=True, color=WHITE,
             align=PP_ALIGN.CENTER, v_anchor=MSO_ANCHOR.MIDDLE)

# Bottom: general PT principle
add_rect(slide, 0.3, 4.8, 12.7, 2.4, WHITE)
add_text(slide,
         "Core PT Principle: Never Cause Overwork Weakness",
         0.5, 4.88, 12.3, 0.45,
         font_size=14, bold=True, color=TEAL)
add_text(slide,
         "Denervated muscles are vulnerable to eccentric damage. Exercise must be SUBMAXIMAL. "
         "As the disease progresses, shift emphasis: early (strengthen & mobilise) → middle (maintain & compensate) "
         "→ late (prevent complications & assist) → palliative (comfort & dignity).",
         0.5, 5.32, 12.3, 1.8,
         font_size=12, color=DARK_GREY, wrap=True)


# ═══════════════════════════════════════════════════════════════════════════
# SLIDE 4 – Stage 1: Early MND
# ═══════════════════════════════════════════════════════════════════════════
slide = prs.slides.add_slide(blank)
add_rect(slide, 0, 0, 13.333, 7.5, LIGHT_GREY)

# Coloured top bar with stage label
add_rect(slide, 0, 0, 13.333, 1.25, GREEN)
add_rect(slide, 0, 1.25, 13.333, 0.06, TEAL)
add_text(slide, "STAGE 1  ·  Early MND", 0.3, 0.05, 9.0, 0.7,
         font_size=28, bold=True, color=WHITE, v_anchor=MSO_ANCHOR.MIDDLE)
add_text(slide, "ALSFRS-R ~40–48  |  Mild focal weakness  |  Near-normal independence",
         0.3, 0.75, 11.0, 0.45, font_size=13, color=RGBColor(0xCC, 0xFF, 0xCC))

col_w = 4.0
col_y = 1.45
col_h = 4.7
gaps  = [0.25, 4.45, 8.65]

add_bullet_box(slide,
    ["Asymmetric distal weakness (hand or foot)",
     "Fatigue with prolonged activity",
     "Near-normal gait; minor foot drop",
     "Fasciculations / cramps",
     "Mild dysarthria (bulbar onset)",
     "Anxiety, adjustment to diagnosis"],
    x=gaps[0], y=col_y, w=col_w, h=col_h,
    font_size=12, title="Clinical Picture", title_color=GREEN, bg=WHITE)

add_bullet_box(slide,
    ["Submaximal resistance training (2–3×/week)",
     "Aerobic exercise: cycling / swimming at 60–70% HRmax",
     "Stretching: daily full ROM, Achilles + hip flexors",
     "Gait analysis: AFO for foot drop if needed",
     "Postural correction and ergonomic advice",
     "Energy conservation strategies",
     "Balance training: single-leg stance, foam pad"],
    x=gaps[1], y=col_y, w=col_w, h=col_h,
    font_size=12, title="Physiotherapy Goals & Interventions", title_color=GREEN, bg=WHITE)

add_bullet_box(slide,
    ["Baseline FVC, SNIP, PCF",
     "Incentive spirometry",
     "Diaphragmatic breathing technique",
     "Educate on early NIV signs to watch",
     "Walking stick (if unstable)",
     "Wrist / ankle splints as needed",
     "Home exercise programme (HEP)",
     "Psychological support + peer referral"],
    x=gaps[2], y=col_y, w=col_w, h=col_h,
    font_size=12, title="Respiratory, Equipment & Education", title_color=TEAL, bg=WHITE)

# Bottom banner
add_rect(slide, 0.25, 6.3, 12.8, 0.9, GREEN)
add_text(slide,
         "Goals: Maximise strength & endurance  |  Prevent deconditioning  |  Educate patient & family  |  Baseline documentation",
         0.35, 6.3, 12.6, 0.9,
         font_size=12, bold=True, color=WHITE,
         align=PP_ALIGN.CENTER, v_anchor=MSO_ANCHOR.MIDDLE)


# ═══════════════════════════════════════════════════════════════════════════
# SLIDE 5 – Stage 2: Middle MND
# ═══════════════════════════════════════════════════════════════════════════
slide = prs.slides.add_slide(blank)
add_rect(slide, 0, 0, 13.333, 7.5, LIGHT_GREY)

add_rect(slide, 0, 0, 13.333, 1.25, AMBER)
add_rect(slide, 0, 1.25, 13.333, 0.06, TEAL)
add_text(slide, "STAGE 2  ·  Middle / Moderate MND", 0.3, 0.05, 9.0, 0.7,
         font_size=28, bold=True, color=WHITE, v_anchor=MSO_ANCHOR.MIDDLE)
add_text(slide, "ALSFRS-R ~25–39  |  Spreading weakness  |  Mobility aids required",
         0.3, 0.75, 11.0, 0.45, font_size=13, color=WHITE)

col_w = 4.0
col_y = 1.45
col_h = 4.7

add_bullet_box(slide,
    ["Bilateral limb involvement",
     "Fatigue limits ADLs significantly",
     "Rollator / walking frame required",
     "Dysphagia / dysarthria progressing",
     "Dropped head in some patients",
     "Nocturnal hypoventilation beginning",
     "Depression / grief common"],
    x=gaps[0], y=col_y, w=col_w, h=col_h,
    font_size=12, title="Clinical Picture", title_color=AMBER, bg=WHITE)

add_bullet_box(slide,
    ["Maintain ROM: daily passive + active-assisted stretching",
     "Reduce resistance training intensity; prioritise function",
     "Aquatic therapy: buoyancy-assisted strengthening",
     "Spasticity management: stretching, positioning, splinting",
     "Falls prevention: home hazard assessment",
     "Cervical collar for dropped head syndrome",
     "Wheelchair assessment (manual → consider powered)",
     "Adaptive ADL training with OT"],
    x=gaps[1], y=col_y, w=col_w, h=col_h,
    font_size=12, title="Physiotherapy Interventions", title_color=AMBER, bg=WHITE)

add_bullet_box(slide,
    ["Serial FVC every 3 months (SNIP, PCF)",
     "Nocturnal oximetry if symptomatic",
     "Initiate BiPAP/NIV when FVC <50%",
     "Manual cough assist technique",
     "Rollator → walking frame → wheelchair",
     "Hospital bed + pressure-relief mattress",
     "Ceiling hoist / transfer belt",
     "PEG discussion if dysphagia + weight loss"],
    x=gaps[2], y=col_y, w=col_w, h=col_h,
    font_size=12, title="Respiratory, Equipment & Education", title_color=TEAL, bg=WHITE)

add_rect(slide, 0.25, 6.3, 12.8, 0.9, AMBER)
add_text(slide,
         "Goals: Maintain independence as long as possible  |  Prevent contractures & falls  |  Initiate respiratory support  |  Timely equipment",
         0.35, 6.3, 12.6, 0.9,
         font_size=12, bold=True, color=WHITE,
         align=PP_ALIGN.CENTER, v_anchor=MSO_ANCHOR.MIDDLE)


# ═══════════════════════════════════════════════════════════════════════════
# SLIDE 6 – Stage 3: Late / Advanced MND
# ═══════════════════════════════════════════════════════════════════════════
slide = prs.slides.add_slide(blank)
add_rect(slide, 0, 0, 13.333, 7.5, LIGHT_GREY)

add_rect(slide, 0, 0, 13.333, 1.25, ORANGE)
add_rect(slide, 0, 1.25, 13.333, 0.06, TEAL)
add_text(slide, "STAGE 3  ·  Advanced / Late MND", 0.3, 0.05, 9.0, 0.7,
         font_size=28, bold=True, color=WHITE, v_anchor=MSO_ANCHOR.MIDDLE)
add_text(slide, "ALSFRS-R ~10–24  |  Severe weakness  |  Full wheelchair dependence",
         0.3, 0.75, 11.0, 0.45, font_size=13, color=WHITE)

col_w = 4.0
col_y = 1.45
col_h = 4.7

add_bullet_box(slide,
    ["Minimal or no voluntary limb movement",
     "Wheelchair bound; needs hoisting",
     "Severe dysarthria → AAC devices",
     "Aspiration risk + weight loss",
     "Significant respiratory compromise",
     "Orthostatic hypotension risk",
     "Skin integrity / pressure ulcer risk"],
    x=gaps[0], y=col_y, w=col_w, h=col_h,
    font_size=12, title="Clinical Picture", title_color=ORANGE, bg=WHITE)

add_bullet_box(slide,
    ["Passive ROM to ALL limbs: prevent pain + contracture",
     "Positioning: anti-contracture splints; seating assessment",
     "Pressure relief: 2-hourly turns if in bed",
     "Oedema management: elevation + compression",
     "Trunk support in wheelchair (customised seating)",
     "Transfer training for carers (safe handling)",
     "Minimal active exercise as tolerated",
     "Hydrotherapy only if safe (aspiration risk)"],
    x=gaps[1], y=col_y, w=col_w, h=col_h,
    font_size=12, title="Physiotherapy Interventions", title_color=ORANGE, bg=WHITE)

add_bullet_box(slide,
    ["NIV: titrate to 24hr use as tolerated",
     "Mechanical insufflation-exsufflation (CoughAssist)",
     "Manual chest physiotherapy + suctioning",
     "Discuss tracheostomy (patient decision)",
     "Power wheelchair with head/eye control",
     "Electric profiling bed; ceiling hoist",
     "Specialised pressure-relieving cushion",
     "Begin advance care planning discussions"],
    x=gaps[2], y=col_y, w=col_w, h=col_h,
    font_size=12, title="Respiratory, Equipment & Education", title_color=TEAL, bg=WHITE)

add_rect(slide, 0.25, 6.3, 12.8, 0.9, ORANGE)
add_text(slide,
         "Goals: Prevent pressure ulcers & contractures  |  Airway clearance  |  Carer training  |  Advance care planning",
         0.35, 6.3, 12.6, 0.9,
         font_size=12, bold=True, color=WHITE,
         align=PP_ALIGN.CENTER, v_anchor=MSO_ANCHOR.MIDDLE)


# ═══════════════════════════════════════════════════════════════════════════
# SLIDE 7 – Stage 4: Palliative / End-Stage MND
# ═══════════════════════════════════════════════════════════════════════════
slide = prs.slides.add_slide(blank)
add_rect(slide, 0, 0, 13.333, 7.5, LIGHT_GREY)

add_rect(slide, 0, 0, 13.333, 1.25, PURPLE)
add_rect(slide, 0, 1.25, 13.333, 0.06, TEAL)
add_text(slide, "STAGE 4  ·  Palliative / End-Stage MND", 0.3, 0.05, 9.0, 0.7,
         font_size=28, bold=True, color=WHITE, v_anchor=MSO_ANCHOR.MIDDLE)
add_text(slide, "ALSFRS-R ~0–9  |  Ventilator dependent  |  Comfort and dignity",
         0.3, 0.75, 11.0, 0.45, font_size=13, color=RGBColor(0xCC, 0xCC, 0xFF))

col_w = 4.0
col_y = 1.45
col_h = 4.7

add_bullet_box(slide,
    ["Locked-in or near-locked-in state",
     "Completely ventilator dependent",
     "Eye movements ± preserved",
     "Communication via eye tracking only",
     "Severe pain, dyspnoea, anxiety",
     "End-of-life decisions imminent"],
    x=gaps[0], y=col_y, w=col_w, h=col_h,
    font_size=12, title="Clinical Picture", title_color=PURPLE, bg=WHITE)

add_bullet_box(slide,
    ["Gentle passive movements for comfort",
     "Positioning: pain-free postures; pressure relief",
     "Lymphoedema management (elevation, gentle massage)",
     "Breathlessness: fan to face (trigeminal stimulation)",
     "Pursed-lip breathing / pacing as able",
     "Family / carer education: positioning, turns",
     "Coordinate with palliative team for pain control",
     "Psychological & spiritual support"],
    x=gaps[1], y=col_y, w=col_w, h=col_h,
    font_size=12, title="Physiotherapy Interventions", title_color=PURPLE, bg=WHITE)

add_bullet_box(slide,
    ["Opioids for refractory dyspnoea (do NOT hasten death)",
     "Suctioning for secretion management",
     "Withdrawal of ventilation: patient-led decision",
     "Symptom comfort: benzodiazepines for anxiety",
     "Eye-gaze device for communication",
     "Community / hospice co-ordination",
     "Bereavement support for family",
     "Physiotherapy role = comfort + dignity"],
    x=gaps[2], y=col_y, w=col_w, h=col_h,
    font_size=12, title="Respiratory, Symptom & Psychosocial", title_color=TEAL, bg=WHITE)

add_rect(slide, 0.25, 6.3, 12.8, 0.9, PURPLE)
add_text(slide,
         "Goals: Dignity & comfort  |  Symptom management  |  Family support  |  Peaceful end-of-life care",
         0.35, 6.3, 12.6, 0.9,
         font_size=12, bold=True, color=WHITE,
         align=PP_ALIGN.CENTER, v_anchor=MSO_ANCHOR.MIDDLE)


# ═══════════════════════════════════════════════════════════════════════════
# SLIDE 8 – Respiratory Physiotherapy Across All Stages
# ═══════════════════════════════════════════════════════════════════════════
slide = prs.slides.add_slide(blank)
add_rect(slide, 0, 0, 13.333, 7.5, LIGHT_GREY)
header_bar(slide, "Respiratory Physiotherapy Across MND Stages",
           "Respiratory failure is the most common cause of death — early monitoring is life-saving")

# Four stage columns
resp_data = [
    ("Stage 1", GREEN,
     ["Baseline FVC, SNIP, PCF",
      "Teach diaphragmatic breathing",
      "Incentive spirometry",
      "Educate on warning signs",
      "Glossopharyngeal breathing intro"]),
    ("Stage 2", AMBER,
     ["Serial FVC every 3 months",
      "Nocturnal oximetry if needed",
      "Initiate BiPAP / NIV at FVC <50%",
      "Manual assisted cough",
      "Mucolytics / nebulised saline"]),
    ("Stage 3", ORANGE,
     ["NIV up to 24hr / day",
      "CoughAssist (MI-E) device",
      "Chest physiotherapy + suctioning",
      "Tracheostomy decision making",
      "ICU liaison if acute deterioration"]),
    ("Stage 4", PURPLE,
     ["Comfort ventilation only",
      "Opioids for dyspnoea",
      "Suctioning as needed",
      "Fan therapy for air hunger",
      "Ventilator withdrawal (patient choice)"]),
]

for i, (stg, col, items) in enumerate(resp_data):
    x = 0.3 + i * 3.25
    add_rect(slide, x, 1.28, 3.0, 0.5, col)
    add_text(slide, stg, x, 1.28, 3.0, 0.5,
             font_size=14, bold=True, color=WHITE,
             align=PP_ALIGN.CENTER, v_anchor=MSO_ANCHOR.MIDDLE)
    add_bullet_box(slide, items,
                   x=x, y=1.82, w=3.0, h=4.2,
                   font_size=12, bg=WHITE)

# Key thresholds box
add_rect(slide, 0.3, 6.15, 12.7, 1.05, NAVY)
thresholds = ("Key Thresholds:   FVC <50% → initiate NIV   |   "
              "SNIP <40 cmH₂O → NIV urgently   |   "
              "PCF <270 L/min → cough assist   |   "
              "FVC <20 mL/kg → ICU/intubation (GBS-style if acute)")
add_text(slide, thresholds, 0.5, 6.18, 12.3, 1.0,
         font_size=11, bold=False, color=WHITE, wrap=True)


# ═══════════════════════════════════════════════════════════════════════════
# SLIDE 9 – Exercise Prescription Across Stages
# ═══════════════════════════════════════════════════════════════════════════
slide = prs.slides.add_slide(blank)
add_rect(slide, 0, 0, 13.333, 7.5, LIGHT_GREY)
header_bar(slide, "Exercise Prescription Across MND Stages",
           "Submaximal loading — avoid overwork weakness at all stages")

# Table header
headers = ["Parameter", "Stage 1 (Early)", "Stage 2 (Middle)", "Stage 3 (Late)", "Stage 4 (Palliative)"]
col_colors = [NAVY, GREEN, AMBER, ORANGE, PURPLE]
col_x = [0.25, 2.65, 5.05, 7.45, 9.85]
col_w_vals = [2.3, 2.3, 2.3, 2.3, 3.2]
row_h = 0.62

for i, (hdr, col, x, w) in enumerate(zip(headers, col_colors, col_x, col_w_vals)):
    add_rect(slide, x, 1.28, w, 0.5, col)
    add_text(slide, hdr, x, 1.28, w, 0.5,
             font_size=11, bold=True, color=WHITE,
             align=PP_ALIGN.CENTER, v_anchor=MSO_ANCHOR.MIDDLE)

rows = [
    ("Resistance\nTraining",
     "Low-mod resistance\n2–3×/week, 3×10 reps\nSubmax intensity",
     "Light resistance only\nFocus on function\nAvoid fatigue",
     "Passive/active-assisted\nGravity-eliminated\nAs tolerated",
     "None / gentle\npassive movements"),
    ("Aerobic\nExercise",
     "Cycling / swimming\n60–70% HRmax\n20–30 min, 3×/week",
     "Aquatic therapy\nStationary cycling\nReduce duration",
     "Supported seated\nexercise only\nShort sessions",
     "Not applicable"),
    ("Stretching\n& ROM",
     "Active: full ROM daily\nAchilles / hip flexors\nPosture correction",
     "Active-assisted\n+ passive stretching\nAnti-spasticity",
     "Passive ROM all limbs\nSplinting at night\nTurning schedule",
     "Gentle passive\nmovements for\ncomfort only"),
    ("Balance\n& Gait",
     "Single-leg stance\nFoam pad training\nAFO if foot drop",
     "Walking frame\nFalls prevention\nGait re-education",
     "Wheelchair mobility\nTransfer training\nCarer training",
     "Positioning\nin bed / chair\nonly"),
    ("Key\nPrinciple",
     "Strengthen &\nenergise",
     "Maintain &\ncompensate",
     "Prevent\ncomplications",
     "Comfort\n& dignity"),
]

row_bgs = [WHITE, LIGHT_GREY, WHITE, LIGHT_GREY, MID_GREY]
for r_idx, (row, bg) in enumerate(zip(rows, row_bgs)):
    y = 1.82 + r_idx * row_h
    for c_idx, (cell, x, w) in enumerate(zip(row, col_x, col_w_vals)):
        add_rect(slide, x, y, w, row_h, bg)
        txt_color = DARK_GREY if c_idx == 0 else DARK_GREY
        if c_idx == 0:
            txt_color = NAVY
        add_text(slide, cell, x + 0.05, y + 0.04, w - 0.1, row_h - 0.08,
                 font_size=9.5, color=txt_color,
                 bold=(c_idx == 0), wrap=True,
                 v_anchor=MSO_ANCHOR.TOP)

add_rect(slide, 0.25, 6.98, 12.8, 0.32, TEAL)
add_text(slide,
         "⚠  OVERWORK WEAKNESS WARNING: Never exercise to exhaustion. If fatigue persists >30 min post-exercise, reduce intensity immediately.",
         0.4, 6.98, 12.5, 0.32,
         font_size=10, bold=True, color=WHITE, v_anchor=MSO_ANCHOR.MIDDLE)


# ═══════════════════════════════════════════════════════════════════════════
# SLIDE 10 – Equipment Progression Timeline
# ═══════════════════════════════════════════════════════════════════════════
slide = prs.slides.add_slide(blank)
add_rect(slide, 0, 0, 13.333, 7.5, LIGHT_GREY)
header_bar(slide, "Equipment & Assistive Device Progression",
           "Timely provision prevents falls, maintains independence, and reduces carer burden")

categories = [
    ("Mobility", ["Walking stick", "Crutch / Nordic poles", "Rollator frame", "Manual wheelchair", "Power wheelchair", "Eye-gaze chair control"]),
    ("Seating\n& Bed", ["Ergonomic chair", "Riser-recliner chair", "Customised wheelchair seating", "Hospital bed + rails", "Profiling bed", "Pressure-relief mattress"]),
    ("Respiratory", ["Incentive spirometer", "NIV/BiPAP mask + machine", "CoughAssist (MI-E)", "Suction machine", "Tracheostomy (if chosen)", "Ventilator"]),
    ("Transfers\n& Hoisting", ["Grab rails + bath aids", "Transfer belt", "Rotunda turn table", "Mobile hoist", "Ceiling track hoist", "Full-body sling"]),
    ("Communication", ["Voice amplifier", "Voice banking app", "Speech-to-text app", "AAC tablet device", "Eye-gaze device", "Brain-computer interface"]),
]

cat_x = [0.25, 2.9, 5.55, 8.2, 10.85]
cat_w = 2.4
stage_bands = [(GREEN, "S1"), (AMBER, "S1–2"), (AMBER, "S2"), (ORANGE, "S2–3"), (ORANGE, "S3"), (PURPLE, "S3–4")]

for cat_idx, ((cat_name, items), x) in enumerate(zip(categories, cat_x)):
    # Header
    add_rect(slide, x, 1.28, cat_w, 0.48, NAVY)
    add_text(slide, cat_name, x, 1.28, cat_w, 0.48,
             font_size=12, bold=True, color=WHITE,
             align=PP_ALIGN.CENTER, v_anchor=MSO_ANCHOR.MIDDLE)
    # Items
    for item_idx, (item, (col, stg)) in enumerate(zip(items, stage_bands)):
        iy = 1.82 + item_idx * 0.87
        add_rect(slide, x, iy, cat_w, 0.82, WHITE)
        add_rect(slide, x, iy, 0.35, 0.82, col)
        add_text(slide, stg, x, iy, 0.35, 0.82,
                 font_size=8, bold=True, color=WHITE,
                 align=PP_ALIGN.CENTER, v_anchor=MSO_ANCHOR.MIDDLE)
        add_text(slide, item, x + 0.38, iy + 0.05, cat_w - 0.42, 0.72,
                 font_size=10.5, color=DARK_GREY, wrap=True,
                 v_anchor=MSO_ANCHOR.MIDDLE)

# Legend
lx = 0.25
for col, stg, label in [(GREEN, "S1", "Stage 1"), (AMBER, "S2", "Stage 2"),
                         (ORANGE, "S3", "Stage 3"), (PURPLE, "S4", "Stage 4")]:
    add_rect(slide, lx, 7.18, 0.35, 0.22, col)
    add_text(slide, f"{stg} = {label}", lx + 0.38, 7.18, 1.8, 0.22,
             font_size=10, color=DARK_GREY)
    lx += 2.3


# ═══════════════════════════════════════════════════════════════════════════
# SLIDE 11 – Outcome Measures & Monitoring
# ═══════════════════════════════════════════════════════════════════════════
slide = prs.slides.add_slide(blank)
add_rect(slide, 0, 0, 13.333, 7.5, LIGHT_GREY)
header_bar(slide, "Outcome Measures & Monitoring in MND",
           "Serial measurement guides treatment decisions and triggers timely interventions")

om_left = [
    ("ALSFRS-R\n(ALS Functional Rating Scale-Revised)",
     "48-item scale covering speech, swallowing, handwriting, dressing, turning in bed, walking, stairs, dyspnoea, orthopnoea, respiratory sufficiency. Score 0–48. Track rate of decline (≥1 pt/month = faster progression)."),
    ("FVC – Forced Vital Capacity",
     "Primary respiratory predictor. Serial 3-monthly. FVC <50% → initiate NIV. FVC <30% → urgent NIV. Major independent predictor of survival."),
    ("SNIP – Sniff Nasal Inspiratory Pressure",
     "More sensitive for early diaphragm weakness than FVC. SNIP <40 cmH₂O = poor prognosis; initiate NIV if symptomatic."),
    ("PCF – Peak Cough Flow",
     "Measures cough effectiveness. <270 L/min = risk of secretion retention; <160 L/min = critical, CoughAssist essential."),
]

om_right = [
    ("Berg Balance Scale (BBS)",
     "14-item balance assessment (0–56). Track fall risk in Stage 1–2 MND. Score <45 = high fall risk."),
    ("Timed Up and Go (TUG)",
     "Functional mobility marker. Increasing time indicates mobility decline. Trigger for walking aid upgrade."),
    ("Grip / Pinch Dynamometry",
     "Handheld dynamometry: track hand strength serially. Key for planning assistive devices."),
    ("ALSAQ-40 / ALS Assessment Questionnaire",
     "Quality-of-life tool specific to ALS: 40 items across mobility, ADL, eating, communication, and emotional wellbeing."),
]

for i, (title, desc) in enumerate(om_left):
    y = 1.35 + i * 1.45
    add_rect(slide, 0.25, y, 6.1, 1.35, WHITE)
    add_rect(slide, 0.25, y, 0.22, 1.35, TEAL)
    add_text(slide, title, 0.55, y + 0.05, 5.6, 0.48,
             font_size=11, bold=True, color=NAVY, wrap=True)
    add_text(slide, desc, 0.55, y + 0.5, 5.6, 0.82,
             font_size=10, color=DARK_GREY, wrap=True)

for i, (title, desc) in enumerate(om_right):
    y = 1.35 + i * 1.45
    add_rect(slide, 6.7, y, 6.4, 1.35, WHITE)
    add_rect(slide, 6.7, y, 0.22, 1.35, TEAL)
    add_text(slide, title, 7.0, y + 0.05, 5.9, 0.48,
             font_size=11, bold=True, color=NAVY, wrap=True)
    add_text(slide, desc, 7.0, y + 0.5, 5.9, 0.82,
             font_size=10, color=DARK_GREY, wrap=True)

add_rect(slide, 0.25, 7.1, 12.8, 0.28, NAVY)
add_text(slide,
         "Monitor at every visit: weight, pain score (NRS), fatigue, sleep quality, mood. Trigger MDT meeting if ALSFRS-R drops >2 points/month.",
         0.4, 7.1, 12.5, 0.28,
         font_size=10, color=WHITE, v_anchor=MSO_ANCHOR.MIDDLE)


# ═══════════════════════════════════════════════════════════════════════════
# SLIDE 12 – Summary & Key Principles
# ═══════════════════════════════════════════════════════════════════════════
slide = prs.slides.add_slide(blank)
add_rect(slide, 0, 0, 13.333, 7.5, NAVY)
add_rect(slide, 0, 0, 13.333, 1.3, TEAL)

add_text(slide, "Summary: Physiotherapy in MND", 0.4, 0.1, 12.5, 0.95,
         font_size=30, bold=True, color=WHITE,
         align=PP_ALIGN.CENTER, v_anchor=MSO_ANCHOR.MIDDLE)
add_text(slide, "A stage-guided, patient-centred, multidisciplinary approach",
         0.4, 1.0, 12.5, 0.35,
         font_size=14, color=WHITE, align=PP_ALIGN.CENTER)

principles = [
    ("Do No Harm",           GREEN,  "Never exercise to exhaustion. Submaximal is the rule throughout MND."),
    ("Adapt Early",          AMBER,  "Provide equipment proactively, before falls and crises occur."),
    ("Breathe First",        ORANGE, "Respiratory monitoring and NIV initiation are the highest priority as disease progresses."),
    ("Family-Centred",       PURPLE, "Train carers at every stage. Their confidence improves patient safety at home."),
    ("Dignity in Palliation",TEAL,   "In Stage 4, physiotherapy is not about recovery — it is about comfort, dignity, and peaceful end-of-life."),
    ("MDT Always",           RGBColor(0x4A, 0x90, 0xD9), "No physiotherapist works alone. Coordinate with SLT, OT, dietitian, palliative team at every stage."),
]

for i, (title, col, desc) in enumerate(principles):
    row = i // 3
    col_pos = i % 3
    x = 0.3 + col_pos * 4.35
    y = 1.55 + row * 2.5
    add_rect(slide, x, y, 4.0, 2.2, RGBColor(0x1A, 0x3A, 0x6A))
    add_rect(slide, x, y, 4.0, 0.38, col)
    add_text(slide, title, x + 0.1, y, 3.8, 0.38,
             font_size=13, bold=True, color=WHITE, v_anchor=MSO_ANCHOR.MIDDLE)
    add_text(slide, desc, x + 0.1, y + 0.42, 3.8, 1.7,
             font_size=11, color=RGBColor(0xCC, 0xDD, 0xFF), wrap=True)

add_text(slide,
         "References: Goldman-Cecil Medicine 22e  ·  Bradley & Daroff's Neurology  ·  Adams & Victor's Neurology 12e  ·  NICE NG42  ·  Hospice Foundation Ireland MND Guidelines",
         0.3, 7.18, 12.7, 0.28,
         font_size=8.5, color=MID_GREY, align=PP_ALIGN.CENTER)


# ─── Save ───────────────────────────────────────────────────────────────────
out_path = "/tmp/workspace/mnd-pptx/Physiotherapy_Progression_MND_Stages.pptx"
buf = BytesIO()
prs.save(buf)
with open(out_path, "wb") as f:
    f.write(buf.getvalue())

print(f"Saved: {out_path}")
import os
print(f"Size: {os.path.getsize(out_path):,} bytes")
print(f"Slides: {len(prs.slides)}")

Running Command

cd /tmp/workspace/mnd-pptx && python create_mnd_pptx.py

Your presentation is ready. Download it here:

Physiotherapy Progression MND Stages

Presentation · PPTX

12 slides, 16:9 widescreen format. Here is what each slide covers:

#	Slide	Highlights
1	Title Slide	Stage colour pills (green/amber/orange/purple), references
2	What is MND?	Key facts, clinical variants, PT role overview
3	Stages Framework	ALSFRS-R ranges, timeline arrow, core PT principle (no overwork)
4	Stage 1 - Early	Clinical picture, exercise, respiratory + equipment (green theme)
5	Stage 2 - Middle	Spreading weakness, aquatic therapy, BiPAP initiation (amber theme)
6	Stage 3 - Advanced	Passive care, CoughAssist, carer training (orange theme)
7	Stage 4 - Palliative	Comfort, fan therapy, opioids, advance care planning (purple theme)
8	Respiratory PT	4-column stage-by-stage respiratory management + key thresholds
9	Exercise Prescription Table	Resistance, aerobic, stretching, balance across all 4 stages
10	Equipment Timeline	Mobility, seating, respiratory, hoisting, communication devices by stage
11	Outcome Measures	ALSFRS-R, FVC, SNIP, PCF, Berg Balance, TUG, dynamometry, ALSAQ-40
12	Summary	6 key principles (Do No Harm, Adapt Early, Breathe First, etc.)

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