Massive Stroke: Symptoms, Causes & Long-Term Effects

A massive stroke involves a large territory of brain infarction or hemorrhage, causing severe neurological deficits.

Clinical Presentation

• Motor: Dense hemiplegia (face, arm, leg), often with conjugate gaze deviation toward lesion.
• Language: Global aphasia (dominant hemisphere) or neglect/anosognosia (non-dominant).
• Consciousness: Stupor or coma (large cortical/brainstem involvement).
• Brainstem signs: Pupillary abnormalities, abnormal respirations, dysphagia.

Pathophysiology

• Large vessel occlusion (ICA, MCA trunk, basilar) or massive hemorrhage.
• Malignant edema peaks at 24–72 hrs → herniation risk.

Outcomes

• Mortality: 30–40% at 30 days (higher for hemorrhage).
• Survivors: Often severe disability (modified Rankin Scale 4–5); some recover with decompressive hemicraniectomy (age <60, within 48 hrs).
• Complications: dysphagia, aspiration pneumonia, DVT/PE, contractures, depression.

Time-Critical Interventions

• IV tPA within 4.5 hrs (if ischemic, no contraindications).
• Mechanical thrombectomy within 24 hrs for large vessel occlusion (DAWN/DEFUSE-3 criteria).
• ICU monitoring for edema, seizures, hemodynamic stability.

Early rehabilitation maximizes neuroplasticity.