Management of Acute Stroke
All stroke patients require immediate emergency evaluation and treatment within minutes of symptom onset, with intravenous alteplase (0.9 mg/kg, maximum 90 mg) administered within 3-4.5 hours for eligible ischemic stroke patients, followed by admission to a specialized stroke unit. 1
Prehospital Emergency Response
- Emergency Medical Services (EMS) must be activated immediately via 9-1-1 when stroke symptoms are identified using the FAST mnemonic (Face drooping, Arm weakness, Speech difficulty, Time to call 911) 2
- Paramedics should obtain exact symptom onset time, current medications, and comorbidities while minimizing on-scene time to under 15 minutes 2
- Supplemental oxygen should be administered to maintain oxygen saturation >94% 2, 1
- Prehospital glucose testing is critical, with intravenous glucose administered if blood glucose is <60 mg/dL 2
- For hypotensive patients (systolic BP <120 mmHg), position the stretcher flat and administer isotonic saline 2
- Establish intravenous access in the field and obtain blood samples for laboratory testing to expedite emergency department evaluation 2
- Provide advance notification to receiving hospital to activate stroke team and prepare for immediate imaging 2
Emergency Department Assessment and Triage
- Immediate triage to high-acuity area upon arrival with goal of door-to-imaging time <25 minutes 2
- Perform National Institutes of Health Stroke Scale (NIHSS) evaluation immediately to assess stroke severity 1, 3
- Obtain urgent non-contrast CT or MRI brain imaging within 20 minutes of arrival to distinguish ischemic from hemorrhagic stroke 2, 1
- Essential laboratory investigations include complete blood count, electrolytes, renal function, glucose, cardiac biomarkers, coagulation studies (PT/INR, aPTT), and ECG 1, 4
- Correct hypoglycemia immediately as it can mimic stroke symptoms and cause brain injury 5, 6
Blood Pressure Management
Avoid antihypertensive treatment unless systolic BP >220 mmHg or diastolic BP >120 mmHg in patients not receiving thrombolytic therapy. 2, 1, 5
- For patients eligible for thrombolysis, blood pressure must be lowered to <185/110 mmHg before treatment and maintained <180/105 mmHg for 24 hours after alteplase administration 1
- Use short-acting intravenous agents (labetalol, nicardipine) with minimal cerebral vascular effects when treatment is required 5
- Avoid sublingual nifedipine and agents causing precipitous blood pressure drops, as these can worsen cerebral perfusion 4
- Hypotension (systolic BP <120 mmHg) should be treated with isotonic saline to maintain cerebral perfusion pressure 2
Acute Reperfusion Therapy for Ischemic Stroke
Intravenous alteplase (0.9 mg/kg, maximum 90 mg) is the most time-sensitive intervention with proven mortality benefit and must be administered within 3-4.5 hours of symptom onset for eligible patients. 2, 1
- Administer 10% of total dose as bolus over 1 minute, followed by remaining 90% as infusion over 60 minutes 2
- Safe use requires strict adherence to NINDS inclusion/exclusion criteria and close monitoring for hemorrhagic complications 2
- Do not substitute streptokinase or other thrombolytic agents for alteplase, as they are not safe alternatives 2
- Intra-arterial thrombolysis may be considered for patients presenting beyond 3-4.5 hours with large vessel occlusions, though patient selection criteria are not fully established 2
- Endovascular thrombectomy should be considered for patients with large vessel occlusions presenting within 24 hours of last known well 3
Antiplatelet and Anticoagulation Therapy
- Aspirin 160-300 mg should be administered within 48 hours of acute ischemic stroke onset (after thrombolysis is completed or excluded) to reduce recurrent stroke risk 2, 1, 4
- Urgent anticoagulation with heparin is not recommended as standard acute treatment due to increased bleeding risk without proven benefit 2, 4
- Do not administer aspirin or anticoagulants within 24 hours after alteplase administration 2
- For atrial fibrillation patients requiring long-term anticoagulation, warfarin (target INR 2.0-3.0) or direct oral anticoagulants should be initiated after the acute period 7, 8
Stroke Unit Care
All stroke patients must be admitted to a geographically defined stroke unit with specialized interdisciplinary staff, as this reduces death by 24%, death or institutionalization by 24%, and death or dependency by 20% compared to general medical ward care. 1, 4
- The stroke unit team must include physicians, nurses, physiotherapists, occupational therapists, speech-language pathologists, and pharmacists with stroke expertise 1, 4
- Comprehensive stroke unit care incorporating early rehabilitation should begin immediately upon admission 2, 4
- Transport to Primary Stroke Centers reduces 30-day mortality and increases thrombolytic therapy use compared to non-designated hospitals 1
Prevention and Management of Acute Complications
Airway and Respiratory Management
- Protect airway in seriously ill or comatose patients with decreased level of consciousness 2
- Administer supplemental oxygen to maintain saturation >94% 2, 1
- Perform swallowing assessment using validated tools before allowing any oral intake to prevent aspiration pneumonia 5, 4
Cerebral Edema and Increased Intracranial Pressure
- Do not use corticosteroids for cerebral edema, as they are ineffective and potentially harmful 1
- Administer osmotic therapy (mannitol 0.25-0.5 g/kg IV or hypertonic saline 3%) for patients with deterioration from cerebral edema 1, 4
- Consider hyperventilation (target PaCO2 30-35 mmHg) as temporary measure for acute herniation 1
- Hemicraniectomy within 48 hours substantially reduces death and disability in selected patients aged 18-60 years with extensive hemispheric infarcts 4
Seizure Management
- Do not administer prophylactic anticonvulsants to patients who have not had seizures, as this is not recommended 2
- Treat seizures if they occur with standard anticonvulsant therapy 2
Infection Prevention and Treatment
- Fever after stroke should prompt immediate search for pneumonia, which is a leading cause of post-stroke mortality 5
- Administer appropriate antibiotics early when infection is identified 5
- Avoid indwelling bladder catheters when possible due to infection risk 4
Venous Thromboembolism Prevention
- Administer subcutaneous anticoagulants (unfractionated heparin 5000 units SC q8-12h or low-molecular-weight heparin) or use intermittent external compression stockings for DVT prevention in immobilized patients 5, 4
- Begin prophylaxis within 24-48 hours after stroke onset 5
Metabolic Management
- Lower markedly elevated glucose to <180-300 mg/dL while avoiding overly aggressive treatment that can cause fluid shifts 5, 6
- Glucose levels >8 mmol/L (144 mg/dL) predict poor prognosis and should be treated with insulin therapy 6
- Maintain normothermia, as hyperthermia (temperature >37.5°C) worsens stroke outcome and should be treated immediately with antipyretics 5, 6
Nutrition and Hydration
- Perform swallowing assessment before allowing oral intake 4
- Insert nasogastric or nasoduodenal tube for feedings and medication administration when oral intake is unsafe 4
- Consider percutaneous endoscopic gastric tube placement if prolonged feeding support (>2-3 weeks) is anticipated 4
Neurological Monitoring
- Perform frequent neurological assessments using standardized NIHSS during the first 24-48 hours, as approximately 25% of stroke patients deteriorate during this period 5
- Obtain repeat urgent brain CT or MRI when patient's condition deteriorates 4
- Monitor for hemorrhagic transformation, especially in patients who received thrombolytic therapy 2
Early Rehabilitation
- Begin early mobilization within 24-48 hours to prevent complications, though avoid very early intensive mobilization 4
- Assess and manage mobility, activities of daily living, incontinence, and mood early after stroke 4
- Speech-language pathologists should evaluate and treat all stroke patients for communication and swallowing difficulties 4
- The rehabilitation goal is maximum functional recovery with return to premorbid activities when possible 2
Secondary Prevention Evaluation
- Perform carotid duplex ultrasound urgently in all patients with carotid territory symptoms who are potential candidates for carotid revascularization 4
- Obtain transthoracic echocardiography and cardiac telemetry monitoring to identify cardioembolic sources 3
- Measure fasting lipid profile, as statin therapy should be continued during acute period for patients already taking statins 4
- Evaluate for modifiable risk factors including hypertension, diabetes, hyperlipidemia, and atrial fibrillation 4
Management of Hemorrhagic Stroke
- Reverse anticoagulation urgently in patients with intracerebral hemorrhage due to warfarin or other anticoagulants 4
- Lower blood pressure to mean arterial pressure <130 mmHg in patients with history of hypertension 4
- Consider surgical intervention (craniotomy for superficial hemorrhage <1 cm from surface, stereotactic surgery for deep hemorrhage) in selected patients 4
- Surgery is particularly beneficial for cerebellar hemorrhages causing brainstem compression and hydrocephalus 4
Special Considerations
Subarachnoid Hemorrhage
- Consider subarachnoid hemorrhage in patients presenting with sudden severe headache 3
- Perform lumbar puncture if CT is negative but clinical suspicion remains high 3
Cerebellar Stroke
- Evaluate patients with cerebellar symptoms using HINTS examination (head-impulse, nystagmus, test of skew), which is more sensitive than early MRI for cerebellar stroke 3
Quality Improvement
- Participate in Get With The Guidelines-Stroke programs to improve care processes and adherence to performance measures 1
- Monitor metrics including stroke alert response times, imaging acquisition times, door-to-needle times for thrombolysis, and clinical outcomes 4
- Review in-hospital stroke performance data to drive focused quality improvement efforts 4