What is the recommended acute management for a major stroke?

Major Stroke Management

For major acute ischemic stroke, immediate IV thrombolysis with alteplase (0.9 mg/kg, max 90 mg) within 4.5 hours AND endovascular thrombectomy (EVT) for large vessel occlusion within 24 hours are the cornerstones of treatment, alongside comprehensive stroke unit care and prevention of complications. 1, 2, 3

Immediate Hyperacute Management (First Hours)

Airway, Breathing, Circulation

• Protect airway in comatose or severely impaired patients
• Maintain oxygen saturation >94%
• Establish IV access immediately
• Blood pressure management: Do NOT aggressively lower BP unless >220/120 mmHg (if not receiving thrombolysis) or >185/110 mmHg (if thrombolysis candidate) 2, 3

Urgent Brain Imaging

• CT head without contrast is mandatory to exclude hemorrhage before any antithrombotic therapy 1, 2
• CT angiography (CTA) should be performed urgently to identify large vessel occlusion for EVT eligibility 1, 3
• CT perfusion can help select patients beyond 6 hours from symptom onset 1

Reperfusion Therapies

Intravenous Thrombolysis

Alteplase 0.9 mg/kg (maximum 90 mg): 10% as IV bolus over 1 minute, remaining 90% infused over 60 minutes 1, 3

Time windows:

• Standard: Within 4.5 hours of symptom onset 1, 3
• Target door-to-needle time: <60 minutes in 90% of cases, median 30 minutes 1

Critical exclusions for major stroke:

• Intracranial hemorrhage on imaging
• Recent major surgery (<14 days)
• Active bleeding
• Platelet count <100,000/mm³
• INR >1.7 or PT >15 seconds
• Patients on direct oral anticoagulants (DOACs) should NOT receive alteplase routinely 1

Endovascular Thrombectomy (EVT)

EVT is indicated for proximal anterior circulation large vessel occlusion (internal carotid artery, M1 segment of MCA) 3, 4

Time windows:

• 0-6 hours: Strongest evidence, treat all eligible patients 3
• 6-24 hours: Highly selected patients based on perfusion imaging showing salvageable tissue 1, 3

Key point: EVT should proceed even if alteplase is given (bridging therapy). Do not delay EVT to complete alteplase infusion 3, 4

Antiplatelet Therapy

For Major Stroke (NOT Minor Stroke)

Critical distinction: The dual antiplatelet recommendations from CHANCE and POINT trials apply ONLY to minor stroke (NIHSS 0-3) or high-risk TIA, NOT major stroke 1

For major stroke:

• Aspirin 160-325 mg loading dose should be given once hemorrhage is excluded, but ONLY if patient is NOT receiving thrombolysis 1, 3
• If thrombolysis given: Delay aspirin for 24 hours until post-thrombolysis CT excludes hemorrhage 1, 5
• Continue aspirin 81-325 mg daily thereafter 1

Do NOT use dual antiplatelet therapy (aspirin + clopidogrel) for major stroke - evidence shows aspirin monotherapy was not associated with significant stroke recurrence reduction in severe stroke, and dual therapy increases bleeding risk 1

Anticoagulation

Urgent anticoagulation is NOT recommended for acute major stroke 5

Key evidence:

• Does not reduce early recurrent stroke 5
• Does not halt neurological worsening 5
• Significantly increases risk of intracranial hemorrhage, especially in moderate-to-severe strokes 5
• Cannot be given within 24 hours of thrombolysis 5

Blood Pressure Management

During/After EVT

• Maintain BP ≤180/105 mmHg during procedure and for 24 hours after 3
• If successful reperfusion achieved: Consider maintaining <180/105 mmHg 3
• Avoid aggressive BP lowering that could compromise collateral flow while vessel remains occluded 3

General Acute Phase

• Cautious lowering only if severely elevated
• Avoid hypotension which worsens penumbral ischemia

Stroke Unit Care

All major stroke patients should be admitted to a dedicated stroke unit - this is one of the strongest evidence-based interventions for reducing mortality and disability 2, 6

Prevention of Complications

Venous Thromboembolism (VTE) Prophylaxis:

• High-risk patients (immobile, unable to move lower limbs): Start immediately 1
• Options: Intermittent pneumatic compression (IPC) devices OR low-molecular-weight heparin (enoxaparin) 1
• Apply IPC within first 24 hours if chosen 1
• Do NOT use anti-embolism stockings alone - they are ineffective 1

Temperature Management:

• Monitor every 4 hours for first 48 hours 1
• If >37.5°C: Investigate infection (pneumonia, UTI), give antipyretics and antibiotics as needed 1

Early Mobilization:

• Initial rehabilitation assessment within 48 hours 1
• Begin mobilization (sitting, standing, walking) within 24 hours if medically stable 1
• Caution: Avoid very intensive early mobilization - more is not better 1

Dysphagia Screening:

• Mandatory before any oral intake including medications 1
• If dysphagia present: Use enteral tube for aspirin/clopidogrel or rectal aspirin suppository 1

Seizure Management:

• Treat acute seizures with short-acting agents (lorazepam IV) 1
• Do NOT give prophylactic anticonvulsants 2

Critical Pitfalls to Avoid

1. Do NOT give dual antiplatelet therapy for major stroke - this is only for minor stroke (NIHSS 0-3) 1
2. Do NOT use urgent anticoagulation - increases hemorrhage risk without benefit 5
3. Do NOT delay EVT to complete alteplase infusion - proceed immediately 3
4. Do NOT give antiplatelets or anticoagulants within 24 hours of thrombolysis until hemorrhage excluded 1, 5
5. Do NOT aggressively lower blood pressure unless meeting specific thresholds 3
6. Do NOT use corticosteroids for cerebral edema - they are ineffective 2

Surgical Considerations for Major Stroke

Large cerebellar infarction with brainstem compression: Surgical decompression is life-saving 2

Malignant MCA infarction: Hemicraniectomy can be life-saving but survivors have severe disability - discuss with family 2