Management of Acute Ischemic Stroke
Initial Assessment and Stabilization
- The American Heart Association recommends performing rapid assessment of airway, breathing, and circulation as the first priority for patients with acute ischemic stroke 1, 2
- A standardized neurological examination using a validated stroke scale such as the National Institutes of Health Stroke Scale (NIHSS) should be conducted to determine focal deficits and stroke severity 2, 3
- Oxygen saturation should be monitored and supplemental oxygen provided only if oxygen saturation is below 94% 2, 5
Urgent Investigations
- Urgent non-contrast CT scan of the brain should be performed to exclude hemorrhage and assess for other structural causes 3, 6
- CT angiography (CTA) may be considered to identify large vessel occlusions that may be eligible for endovascular thrombectomy 3, 6
- Baseline ECG should be obtained to assess cardiac rhythm and identify atrial fibrillation or evidence of structural heart disease 5, 6
Blood Pressure Management
- The American Heart Association recommends avoiding routine treatment of hypertension in the acute setting for patients not eligible for thrombolytic therapy 5, 6
- Extreme blood pressure elevations (systolic >220 mmHg or diastolic >120 mmHg) should be treated by reducing blood pressure by approximately 15%, and not more than 25%, over the first 24 hours 5, 7
Stroke Unit Care
- The American Heart Association recommends that all patients with acute ischemic stroke be admitted to a stroke unit as soon as possible, ideally within 3 hours of hospital arrival 1, 2
- Stroke unit care has been shown to reduce mortality and improve functional outcomes with benefits comparable to those achieved with IV thrombolysis 1, 2
Prevention and Management of Complications
- Temperature should be monitored routinely and treated if above 37.5°C as hyperthermia is associated with increased morbidity and mortality 1, 5
- Bedside dysphagia screening should be performed before oral intake to prevent aspiration pneumonia 2
Consideration for Endovascular Therapy
- Patients with large vessel occlusion may still be candidates for endovascular thrombectomy (EVT) even when intravenous thrombolysis is contraindicated 3, 8
- Eligible patients with large vessel occlusion who can be treated with EVT within 6 hours of symptom onset should receive EVT 8
Secondary Prevention
- Early aspirin therapy (160-325 mg daily) should be initiated for patients with acute ischemic stroke who are not receiving thrombolysis 1