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Clinical Analysis: 22F, Sudden Left Leg Weakness x 2 Hours, Recurrent Episodes

Key Clinical Features Summary

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Differential Diagnosis (Prioritized)

1. Hemiplegic Migraine (Sporadic or Familial) - TOP DIFFERENTIAL

• Familial Hemiplegic Migraine (FHM) is an autosomal dominant channelopathy (CACNA1A, ATP1A2, SCN1A mutations) characterized by episodic, reversible, lateralized motor weakness that can range from mild hemiparesis to hemiplegia. Motor symptoms can last hours to days.
• Sporadic hemiplegic migraine has identical clinical features without a family history.
• Leg-predominant weakness is unusual but possible (most FHM involves arm/hand preferentially).
• The weakness may occur without headache in some attacks (acephalgic migraine).
• Mechanism: cortical spreading depression with associated oligemia.

"Motor weakness of hemiplegic migraine most often involves the hand and arm... the motor weakness of hemiplegic migraine can endure for several days." - Bradley and Daroff's Neurology

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2. Todd's Paralysis (Post-Ictal Paresis)

• Focal seizure (particularly involving the leg area of the motor cortex/parasagittal region) can produce negative motor symptoms - paralysis without obvious convulsive activity.
• Ictal paralysis (during the seizure itself) can have abrupt onset and offset, mimicking a TIA exactly.
• Post-ictal weakness typically lasts minutes to hours then fully resolves.
• May be impossible to diagnose without EEG.

"Focal seizures can rarely produce negative motor symptoms, including paralysis... the seizure can be impossible to diagnose without EEG... seizures are usually more frequent and have a shorter duration [than TIAs]. Postictal weakness of only one limb can occur." - Bradley and Daroff's Neurology

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3. TIA (ACA territory or Parasagittal)

• Although TIA is rare at age 22, it cannot be dismissed - especially in young women on OCPs (thrombophilia risk).
• Leg-only weakness without face involvement localizes to the ACA territory (medial frontal/parietal cortex - the leg area of the homunculus) or a parasagittal lesion.
• TIA is tissue-based now (not time-based) - even brief episodes can leave DWI lesions.
• Abrupt onset with no "march" of symptoms favors TIA over migraine.

"Episodic paralysis of one limb sometimes is due to a TIA. The main considerations in the differential diagnosis are migraine and seizure. Abrupt onset and absence of positive (muscle activating) motor symptoms argue in favor of TIA." - Bradley and Daroff's Neurology

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4. Multiple Sclerosis

• Young female is the classic MS demographic (F:M = 3:1, peak onset 20-40 years).
• MS can cause monoplegia via a discrete parasagittal white matter plaque.
• However, onset in MS is typically subacute (hours to days, not seconds), and full resolution between episodes supports a relapsing-remitting course (RRMS).
• Paroxysmal motor symptoms in established MS (tonic spasms, paroxysmal weakness) can resemble TIA or epilepsy.

"MS can produce monoplegia secondary to a discrete white matter plaque in the cerebral hemisphere... Onset of symptoms is subacute." - Bradley and Daroff's Neurology

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5. Other Differentials to Consider

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Recommended Workup

Immediate

• MRI Brain with DWI/FLAIR/T2 - look for acute infarct, white matter lesions (MS plaques), structural lesion, or cortical changes
• MRA Head and Neck - vessel stenosis or AVM
• EEG - rule out ictal/inter-ictal epileptiform discharges (if Todd's suspected)
• Blood: CBC, ESR, CRP, coagulation screen (PT/aPTT), antiphospholipid antibodies (anti-cardiolipin, lupus anticoagulant, anti-β2GP1), fasting lipids, thrombophilia panel

Targeted by Differential

• Hemiplegic migraine suspected: Genetic testing (CACNA1A, ATP1A2, SCN1A), family history
• MS suspected: MRI spine (C-spine), CSF oligoclonal bands, VEPs
• TIA/stroke workup: 2D Echo (bubble study if PFO suspected), 24-48h Holter, OCP/hormonal history
• Functional: Neuropsychological assessment after organic causes excluded

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Localization Summary

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Bottom Line

1. Hemiplegic migraine (sporadic/familial) - especially if episodes are associated with headache, visual/sensory aura, or there is a family history
2. Todd's paralysis - if there is any evidence of subclinical seizure activity
3. TIA - must be actively excluded with urgent neuroimaging and vascular workup
4. MS - consider if MRI shows periventricular/juxtacortical white matter lesions

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What to Do Next - Practical Management Plan

Context First

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STEP 1 - Assess Current Status (Right Now)

• Is the weakness still present or has it resolved?
• Vitals: BP both arms, HR, SpO2, temp
• Repeat GRBS if not done recently
• Brief neuro exam: Power in left leg (grade 0-5), reflexes (hyperreflexia = UMN), plantar response (extensor = Babinski +ve)

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STEP 2 - Do NOT Dismiss This as "Minor"

Investigations to Order Immediately

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STEP 3 - Admit or Refer

This patient should not be sent home after just B-complex and calcium.

• If you are at a primary care / clinic setting: Refer urgently to a neurologist or shift to a stroke-capable hospital today.
• If you are at a hospital: Admit under neurology. Start monitoring.
• If symptoms are still present (ongoing weakness): This is an acute stroke until proven otherwise - activate stroke protocol immediately.

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STEP 4 - Specific Treatment Depends on Diagnosis

If TIA is confirmed after MRI/workup:

• Aspirin 150-300 mg loading dose (if no bleed on CT/MRI, and no contraindication)
• Consider dual antiplatelet (aspirin + clopidogrel 75 mg) for first 21 days if high-risk TIA (per AHA 2026 guidelines - POINT/CHANCE trial data)
• Statin (atorvastatin 40-80 mg)
• Address modifiable risk factors (OCP, thrombophilia)

If hemiplegic migraine suspected (most likely):

• No aspirin needed acutely (won't help migraine)
• Acute attack: Sumatriptan is contraindicated in hemiplegic migraine - use NSAIDs + antiemetics (metoclopramide), or IV valproate
• Prophylaxis: Flunarizine, topiramate, verapamil, acetazolamide
• Refer to neurology for genetic counseling

If Todd's paralysis (post-ictal):

• Antiepileptic drug initiation (after EEG confirmation + neurology review)
• Look for underlying cortical lesion (MRI essential)

If MS suspected (after MRI shows white matter lesions):

• CSF for oligoclonal bands, VEP
• Refer to MS clinic for disease-modifying therapy

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Quick Summary of Immediate Action

RIGHT NOW:
1. Check if weakness is still present
2. Take BP, do brief neuro exam
3. Arrange urgent MRI brain (DWI) today
4. Draw blood: CBC, CRP, coag screen, APS antibodies, lipids
5. Admit / refer to neurology - do NOT discharge
6. If weakness persisting → stroke protocol → CT brain STAT
7. Ask about headache, OCP use, family history of similar episodes

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Clinical Approach: 35M, Chronic Alcoholic, Vomiting x2 Days, No Food Yesterday, 48h No Alcohol

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Problem List (Prioritized by Urgency)

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STEP 1 - Immediate Bedside Assessment

Vitals + Withdrawal Scoring

• BP, HR, temp, SpO2 (elevated HR/BP = withdrawal activity)
• CIWA-Ar score (Clinical Institute Withdrawal Assessment for Alcohol) - this guides benzodiazepine dosing:

Focused Exam

• Mental status: confusion, agitation, disorientation? (Wernicke / DT)
• Eye exam: nystagmus, lateral gaze palsy, ophthalmoplegia? (Wernicke triad)
• Gait: truncal ataxia? (Wernicke triad)
• Tremor (hands, tongue)
• Chest auscultation (cough - crackles, consolidation)
• Abdomen: hepatomegaly, ascites, tenderness
• Signs of liver disease: jaundice, spider nevi, palmar erythema, Dupuytren's

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STEP 2 - CRITICAL: Thiamine BEFORE Any Glucose/Dextrose

⚠️ WARNING: Giving IV dextrose/glucose to a thiamine-deficient alcoholic CAN precipitate acute Wernicke encephalopathy. Always give thiamine first.

"Wernicke encephalopathy may be precipitated acutely in at-risk patients by IV glucose administration or carbohydrate loading." - Bradley & Daroff's Neurology

Thiamine Protocol (ASAM/Standard Guidelines)

• If any features of Wernicke (confusion, eye signs, ataxia): Thiamine 500 mg IV TDS x 2-3 days, then 250 mg IV/IM daily x 3-5 days
• If no Wernicke features (prophylaxis): Thiamine 250 mg IV/IM once daily x 3-5 days, then oral 100 mg daily
• This patient (vomiting, not eating, chronic alcoholic) = give IV thiamine prophylactically at minimum, regardless of whether Wernicke signs are present

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STEP 3 - IV Access and Fluids

• IV access - start immediately
• IV fluids: Normal saline (0.9% NaCl) - NOT dextrose until thiamine is given
• Correct dehydration
• Antiemetic: Ondansetron 4-8 mg IV (preferred) or Metoclopramide 10 mg IV
• Monitor urine output

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STEP 4 - Investigations

Bloods (send urgently)

For Chronic Cough

Urine

• Urine routine & microscopy (UTI, proteinuria)
• Urine specific gravity (dehydration)

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STEP 5 - Alcohol Withdrawal Management

Timeline of Withdrawal (Critical to Know)

"Abrupt alcohol discontinuation leads to a characteristic syndrome... withdrawal seizures during the first 1-5 days. Delirium tremens develops 48-72 hours after alcohol discontinuation." - Katzung's Pharmacology

Benzodiazepine Protocol

• Preferred: Diazepam (long-acting, smooth coverage) OR Lorazepam
• Liver disease present: Use Lorazepam or Oxazepam (not hepatically metabolized)
• Dosing approach: Fixed schedule + PRN (symptom-triggered based on CIWA-Ar)

• Diazepam 10 mg oral/IV q6h for 24h (fixed), then taper over 5-7 days
• OR Lorazepam 2 mg oral/IV q6h if liver disease suspected

• Gabapentin (300-400 mg TDS) - helps anxiety, sleep, reduces benzo requirement
• Carbamazepine - alternative to benzodiazepines in mild-moderate withdrawal (common in India)
• Beta-blocker (propranolol/atenolol) for sympathetic overdrive (tachycardia, hypertension) - adjunct only, NOT seizure prophylaxis
• Clonidine - for autonomic symptoms

If Seizure Occurs:

• IV Diazepam 10 mg stat
• Load with Phenytoin/Valproate only if recurrent or structural cause suspected
• Benzodiazepines are first line, NOT antiepileptics alone

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STEP 6 - Electrolyte Replacement

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STEP 7 - Cough Workup (Do Not Miss TB)

• Order CXR immediately along with bloods
• Send 3 sputum samples for AFB smear (spot, early morning x2)
• GeneXpert if available
• If CXR shows cavitation, apical consolidation, miliary pattern → treat as active TB until proven otherwise
• Also consider: aspiration pneumonia (vomiting + chronic alcohol = high aspiration risk), lung abscess

Until CXR result, do not place this patient in a shared ward - isolate pending TB exclusion if any respiratory symptoms.

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STEP 8 - Decide: Admit or OPD?

Admit (recommended for this patient) if ANY of:

• CIWA-Ar ≥ 8
• Vomiting + unable to take oral medications/fluids
• No reliable caregiver at home
• History of prior seizures or DT
• Abnormal electrolytes
• CXR abnormality

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STEP 9 - Nutrition (Once Vomiting Controlled)

• Start oral feeding as tolerated - high-carbohydrate, high-protein
• But give thiamine FIRST before any carbohydrate loading
• Multivitamin supplementation
• Folate 5 mg/day
• Zinc supplementation (commonly deficient in alcoholics)

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Summary Action Card

IMMEDIATE:
1. CIWA-Ar score → assess withdrawal severity
2. Thiamine 250-500 mg IV/IM NOW (before any dextrose)
3. IV access → NS fluids (NOT dextrose initially)
4. Antiemetic IV (ondansetron)
5. Send bloods: CBC, LFT, RFT, electrolytes, Mg, phosphate, glucose, PT/INR, ammonia
6. CXR + Sputum AFB x3 (TB screening)
7. Start benzodiazepine based on CIWA-Ar
8. Correct Mg, K, phosphate deficiencies
9. Monitor q4-6h: vitals, CIWA-Ar, glucose
10. ADMIT - this patient should not go home
11. Once stable: counsel on alcohol cessation, refer to de-addiction services

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One Key Rule to Remember

"Thiamine before glucose" - In every alcoholic who needs IV fluids, this is non-negotiable. Missing Wernicke encephalopathy causes permanent memory loss (Korsakoff syndrome). Treating it costs one injection. Missing it costs a patient their mind.

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Situation Assessment - What You've Given and What the Risks Are

What You Gave:

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⚠️ The DNS Problem - Be Aware

Optimeuron injection (standard Indian formulation):

• Thiamine HCl (B1): 100 mg per vial
• B6 (pyridoxine): 100 mg
• B12 (cyanocobalamin): 1000 mcg

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What to Do RIGHT NOW

1. Stop or Slow the DNS if Possible

2. Source Thiamine URGENTLY

• Available as Benfotiamine, Thiamine HCl (Neurobion Forte injection, Becosules injection) in India
• Generic thiamine HCl 100 mg/2ml ampoules are widely available at district hospitals, medical stores, or nearby PHCs/CHCs
• Call the nearest district hospital pharmacy / blood bank store - they almost always stock it

Do NOT accept "thiamine not available" as a final answer when dealing with a potentially life-threatening thiamine deficiency. Push harder to source it.

3. Repeat Optimeuron if That Is All You Have

• Give a second vial of Optimeuron IV now (adds another 100 mg thiamine)
• Spacing it every 8 hours provides repeated small doses
• This is suboptimal but better than nothing while you arrange proper thiamine

4. Monitor the Patient Closely - Watch for Wernicke Signs

• Confusion or worsening sensorium (baseline mental status?)
• Eye movement abnormality - can the patient move eyes fully in all directions? Any nystagmus?
• Gait - truncal instability?
• If ANY of these develop → this is a medical emergency, transfer immediately

5. What the Pantop + Emeset Are Doing

• Pantoprazole: will reduce gastric acid, helps with vomiting-related gastritis/Mallory-Weiss risk - continue
• Ondansetron: good antiemetic choice - continue
• Once vomiting settles: start oral feeding - soft diet, carbohydrate + protein

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Alcohol Withdrawal - Do Not Forget This

Do You Have Any of These?

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Honest Summary

WHAT YOU DID:
✅ Pantop - correct
✅ Emeset - correct
⚠️  Optimeuron - 100 mg thiamine, partial dose, better than nothing
⚠️  DNS - gave glucose without adequate thiamine cover

WHAT TO DO NOW:
1. Switch to Normal Saline instead of DNS
2. Give second Optimeuron vial IV (adds 100mg thiamine)
3. Source proper thiamine 250-500 mg urgently
   (call nearest district hospital/pharmacy)
4. Start benzodiazepine for withdrawal (Diazepam 10 mg)
5. Watch every 30-60 min for confusion, eye signs, ataxia
6. If any deterioration in sensorium → transfer IMMEDIATELY
7. Do not send home - this patient needs 48-72h monitoring

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Discharge Prescription & Plan

🔴 Before He Walks Out - Do This Now

• Order a CXR right now before discharge (takes 15 minutes)
• If CXR is unavailable today: give him a written referral slip to get CXR + 3 sputum AFB smears done within the next 48 hours and return for review
• Tell him clearly: "This cough needs investigation. It could be serious."

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Discharge Medications

1. Thiamine (B1) - Priority #1

• Thiamine 100 mg oral, once daily x 3 months
• Available as standalone tablet or in multivitamin combinations
• If thiamine tablets not available: Neurobion Forte (B1 + B6 + B12) 1 tab TDS x 1 month, then OD ongoing

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2. Multivitamin + Minerals

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3. Gastroprotection

• Pantoprazole 40 mg (or Rabeprazole/Omeprazole) - before breakfast, once daily x 2 weeks
• Can taper to SOS (as needed) after 2 weeks if no symptoms

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4. Alcohol Withdrawal Cover (Outpatient)

• Chlordiazepoxide 10 mg oral, TDS x 3 days → BD x 2 days → OD x 2 days, then stop
  • (This is the most practical, widely available option for outpatient detox in India)
• OR Diazepam 5 mg oral, TDS x 3 days then taper, if chlordiazepoxide not available
• Strict instruction: No alcohol while on these - dangerous interaction

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5. Antiemetic (SOS)

• Ondansetron 4 mg or Domperidone 10 mg - TDS, only if nausea/vomiting recurs

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6. Liver Support (Optional but Reasonable)

• Silymarin (Milk thistle / Liv-52 / Hepamerz) - one tablet TDS x 1 month
• Not evidence-based for liver disease reversal, but widely used and safe

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Discharge Instructions (Explain Clearly to Patient + Attendant)

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Alcohol Cessation - Plant the Seed Today

• Brief motivational counseling: "Your body is already showing the damage. This is your chance."
• Refer to de-addiction services if available locally
• If interested in pharmacotherapy for relapse prevention (to be started only after full detox, ideally in a specialist setting):
  • Naltrexone 50 mg OD
  • Acamprosate 666 mg TDS
  • Disulfiram (only if fully supervised - dangerous if he drinks)

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One-Line Summary Prescription

1. Thiamine 100 mg OD x 3 months
2. Folic acid 5 mg OD x 3 months
3. Neurobion Forte 1 tab TDS x 1 month
4. Pantoprazole 40 mg OD before breakfast x 2 weeks
5. Chlordiazepoxide 10 mg TDS x 3d → BD x 2d → OD x 2d (taper)
6. Zinc 20 mg OD x 3 months
7. CXR + sputum AFB x3 within 48 hours → review
8. Follow up in 1 week
9. STRICT NO ALCOHOL