+1 more

Teach me about this case

Reading File

Finding Sources

Reading File

Now I have enough background. Let me synthesize a thorough teaching case from these records.

Case Teaching: Acute Ischemic Stroke — Left Corona Radiata / Internal Capsule Infarct

Patient: 71-year-old male | Known HTN + T2DM on medications

1. The Clinical Story

He woke at 08:30 on 4 April 2026 with difficulty walking and swaying to the sides. At admission his NIHSS was only 2 (minimal right-sided weakness). Over the next 12 hours it progressed to dense right hemiplegia — a classic stuttering or progressing stroke pattern. By examination he also had:

Right UL 0/5, LL 1/5 — complete right hemiplegia
Facial deviation to the left — right upper motor neuron (UMN) facial weakness
Slurred speech
GCS E4V5M6 — conscious and alert
HR 54 bpm, BP 128/70 mmHg, SpO2 99%

Key teaching point: Stuttering onset (worsening over hours) strongly suggests a small vessel / perforator mechanism rather than a large embolic stroke, which tends to be maximal at onset.

2. Neuroanatomy — Why These Signs?

The MRI showed: T2/FLAIR hyperintensity + diffusion restriction in the left corona radiata extending into the left internal capsule (30 × 10 mm).

The Internal Capsule

This is the most clinically important white matter tract:

Limb	Tracts	Lesion Effect
Anterior limb	Frontopontine, anterior thalamic radiation	Less motor
Genu	Corticobulbar fibres	Contralateral UMN facial palsy, dysarthria
Posterior limb	Corticospinal tract (motor), thalamocortical sensory	Contralateral hemiplegia/hemisensory loss

A single small infarct here devastates the entire contralateral body because all fibres are densely packed — this is why he had complete right hemiplegia + facial deviation from a lesion only 30 mm long.

The Corona Radiata

The corona radiata is the fan-shaped white matter above the internal capsule where corticospinal fibres spread out. Involvement here contributes to the same motor deficit. The "pure motor stroke" is one of the classic lacunar syndromes:

Hyaline arteriolosclerosis (small vessel disease), caused by long-standing hypertension, can lead to lumen occlusion resulting in a lacunar infarct. — Robbins Pathologic Basis of Disease

3. Etiology — Small Vessel / Perforator Disease

Why perforator disease?

MRA of neck and brain: NORMAL — no large artery stenosis or occlusion
Echo: NORMAL — no cardioembolic source (no clot, vegetation, wall motion abnormality; EF 62%; intact septa)
Risk factors: long-standing hypertension + diabetes → lipohyalinosis of penetrating arteries (lenticulostriate branches of MCA supplying the internal capsule)
Stuttering progression — typical of perforator involvement

This is a lacunar-type infarct (though at 30 × 10 mm it is at the upper size limit of classical lacunes, which are typically <15 mm). The mechanism is small vessel disease (lipohyalinosis/microatheroma) of the lenticulostriate perforators.

4. Imaging Interpretation

Finding	Meaning
DWI restriction + T2/FLAIR signal, left corona radiata → internal capsule	Acute infarct (~hours-days old)
Multiple bilateral periventricular + subcortical T2/FLAIR foci, no DWI restriction	Old ischemic changes (white matter disease) — background small vessel disease
MRA normal	Excludes large artery occlusion; supports perforator etiology

The background white matter disease on MRI correlates with his chronic hypertension and diabetes — longstanding microvascular damage.

5. Laboratory Findings

Test	Value	Comment
Blood sugar (random)	173–166 mg/dL	Elevated — poorly controlled DM, worsens ischemia
LDL (direct)	117 mg/dL	Above optimal (<100) for stroke patient
HDL	36 mg/dL	Low — cardiovascular risk
Triglycerides	151 mg/dL	Borderline high
Creatinine	0.95 mg/dL	Normal
CRP	3.88 mg/L	Mildly elevated — post-infarct inflammation

His lipid profile is atherogenic: low HDL, elevated LDL and triglycerides → high-intensity statin indicated.

6. Abdominal Ultrasound

Hepatomegaly with Grade I fatty liver — likely from diabetes/metabolic syndrome
Grade I prostatomegaly — incidental, age-related
Small simple hepatic cyst — benign incidental

7. Treatment — Understanding Each Decision

In-Hospital

Drug	Rationale
IV fluids	Maintain perfusion to ischemic penumbra
Inj. Mannitol	Osmotic agent for cerebral edema (listed as a diagnosis)
Dual antiplatelets	Aspirin + clopidogrel — POINT/CHANCE trial evidence for early dual antiplatelet therapy in minor stroke/TIA
Statin	Atorvastatin — plaque stabilization, anti-inflammatory
Insulin	Tight glycemic control — hyperglycemia worsens infarct size
HDU x 48 hrs	Stuttering/progressing stroke with cerebral edema → close monitoring

Discharge Medications

Drug	Class	Purpose
Aspirin 75 mg OD	Antiplatelet	Secondary prevention
Clopidogrel 75 mg OD	Antiplatelet	Dual therapy (7 days — CHANCE protocol)
Atorvastatin 40 mg HS	High-intensity statin	LDL reduction, plaque stability
Forxiga (Dapagliflozin) 5 mg OD	SGLT2 inhibitor	Glycemic control + cardio/renoprotection
Concor Am 5/5	Bisoprolol + Amlodipine	Rate control (HR 54) + BP control
Coveram 5/5	Perindopril + Amlodipine	ACE-i + CCB for BP; post-stroke hypertension control
Vildagliptin/Metformin (Vildapil M)	DPP4i + Biguanide	Ongoing diabetes management
Startaglim M2	Glimepiride + Metformin	Ongoing diabetes management

8. Key Learning Points

Stuttering stroke = perforator disease until proven otherwise — small vessel lacunar infarcts can progress over hours due to propagating thrombus or repeated perforator spasm.
Internal capsule anatomy is essential — a tiny lesion here causes maximal deficit because of the density of descending motor fibres. Corticobulbar fibres (facial, speech) travel through the genu; corticospinal through the posterior limb.
Normal MRA + normal echo → small vessel etiology — workup systematically excludes large artery and cardioembolic sources.
Background white matter disease on MRI is a marker of chronic small vessel disease — indicates longstanding hypertension effect and predicts risk of further events.
Dual antiplatelet for 21 days (CHANCE/POINT) is evidence-based for minor ischemic stroke — then transition to single agent.
Mannitol is used for acute cerebral edema complicating stroke — reduces ICP by osmotic gradient.
Glycemic control matters acutely — hyperglycemia expands infarct size by worsening acidosis in the ischemic penumbra.
Secondary prevention pillars: antiplatelet + high-intensity statin + BP control + tight diabetes management.

9. Prognosis and Rehabilitation

He was admitted to HDU and stabilized over 3 days, discharged hemodynamically stable. With dense right hemiplegia (UL 0/5), he will need:

Physiotherapy for motor rehabilitation
Occupational therapy
Speech therapy (dysarthria)
Strict vascular risk factor control (BP target <130/80, LDL <70 mg/dL for stroke patients, HbA1c ~7%)
1-week neurology follow-up

The prognosis for motor recovery from an internal capsule infarct is variable — the posterior limb is critical; some patients regain useful function with intensive rehab, especially in the first 3–6 months (neuroplasticity window).

Am going for this patients consultation, he has 2 times weekly consultation, what all should I check

Finding Sources

Reading File

Finding Sources

Here is a structured checklist for a twice-weekly outpatient neurology follow-up for this patient — a 71-year-old male, ~1 week post acute left corona radiata / internal capsule ischemic stroke with right hemiplegia.

Follow-Up Consultation Checklist

1. Neurological Examination (Every Visit)

Motor (Most Important — Track Trajectory)

Upper limb power — right arm, wrist, fingers (currently 0/5 at discharge)
Lower limb power — right leg, hip flexion, knee, ankle (1/5 at discharge)
Tone — early flaccidity → watch for evolving spasticity (begins ~2 weeks post-stroke)
Deep tendon reflexes — hyperreflexia + upgoing plantar (Babinski) on the right = expected UMN pattern
Document using MRC grade 0–5 at each visit so you have a trend

Face & Speech

Facial symmetry — right UMN facial weakness improving?
Dysarthria — grade improvement; is speech becoming clearer?
Dysphagia screen — ask if he chokes on liquids/solids (critical — aspiration pneumonia risk)

Coordination & Balance

Gait assessment — can he stand? Walk with support? Any ataxia?
Sitting balance — important for rehab planning

GCS / Cognition

Orientation, attention — watch for post-stroke cognitive impairment (vascular)

2. Vital Signs (Every Visit)

Parameter	Target	Why
BP	<130/80 mmHg	Chronic hypertension is the primary etiology; over-lowering acutely is harmful but long-term control is essential
HR	55–65 bpm	He was 54 bpm at discharge on Bisoprolol — watch for symptomatic bradycardia
Blood glucose	Fasting <130, random <180	Hyperglycemia worsens outcome and increases recurrence risk
Temperature	Afebrile	Fever suggests infection (aspiration pneumonia, UTI — common post-stroke)
SpO2	>94%	Hypoxia worsens ischemic penumbra

3. Medication Review (Every Visit)

Check compliance, side effects, and timing for step-down:

Medication	What to Check
Aspirin + Clopidogrel (dual antiplatelet — 7 days prescribed)	Are we past day 21? Dual therapy should transition to single antiplatelet (clopidogrel alone) by ~3 weeks per CHANCE trial. Check if still on both
Atorvastatin 40 mg	Tolerating? Any muscle aches (myopathy)? LFTs if symptomatic
Bisoprolol + Amlodipine (Concor Am)	BP & HR response — adjust if bradycardic
Perindopril + Amlodipine (Coveram)	Cough from ACE-i? Ankle edema from amlodipine?
Dapagliflozin (Forxiga)	Urinary symptoms, genital infections — common with SGLT2i
Vildagliptin/Metformin + Glimepiride/Metformin	Hypoglycemia episodes? Weight?

4. Stroke Recurrence Screen (Every Visit)

Ask specifically:

Any new weakness, numbness, or face drooping (even transient = TIA)
Any visual changes or double vision
Any new speech difficulty
Headache — could indicate hemorrhagic transformation
Seizures — post-stroke seizures occur in ~5% within first weeks

5. Complications to Actively Screen For

Complication	How to Check
Shoulder pain — subluxation/hemiplegic shoulder	Ask + palpate right shoulder
DVT / PE — immobile limb	Calf swelling, tenderness, dyspnea
Aspiration pneumonia	Cough, fever, chest symptoms, SpO2 drop
Pressure ulcers	If not mobilizing — check sacrum, heels
Urinary retention / UTI	Grade I prostatomegaly noted; dysuria, fever
Constipation	Immobility + multiple medications
Post-stroke depression	Mood, motivation, sleep — screen with PHQ-2
Spasticity onset	Increasing tone → early physiotherapy referral

6. Functional Assessment

Barthel Index or mRS (modified Rankin Scale) — document at every visit
- mRS 0 = no symptoms → 5 = severe disability; track improvement
Can he feed himself? Personal hygiene? Transfer from bed?
Is physiotherapy, occupational therapy, speech therapy happening — at what frequency?

7. Investigations to Order Periodically

Test	Timing	Reason
Fasting lipids (LDL)	4–6 weeks post-discharge	LDL target for stroke is <70 mg/dL — his was 117 at admission, likely needs dose uptitration
HbA1c	3 months	Overall diabetes control
Renal function + electrolytes	2–4 weeks	On ACE-i (perindopril) + SGLT2i — monitor creatinine and potassium
Fasting blood glucose	Each visit initially	On glimepiride — hypoglycemia risk
ECG	Once if not done	Rule out paroxysmal AF which may have been missed
Holter monitor (24–48h)	If clinically indicated	Paroxysmal AF can be cryptic; MRA was normal but embolic workup should be thorough

8. Quick Reference — Red Flags (Admit/Urgent)

Send back urgently if:

Sudden worsening of power or new neurological deficit
Altered consciousness
New facial droop or speech loss
Seizure
BP >180/110 persistently
SpO2 <92% or fever with productive cough
Signs of DVT/PE

Summary Card for Quick Use

Every Visit:
✓ BP, HR, RBS, SpO2, temp
✓ Right UL + LL power (MRC grade)
✓ Facial symmetry + speech
✓ Dysphagia screen
✓ Medication compliance & step-down (dual → single antiplatelet at 3 weeks)
✓ mRS / Barthel
✓ Mood (depression screen)
✓ Complications: shoulder pain, DVT, skin, UTI
✓ Rehab progress check

This is a shared conversation. Sign in to Orris to start your own chat.