Watershed Infarction

Watershed infarction occurs in border-zone areas between major cerebral arteries during systemic hypoperfusion. Clinical features include proximal limb weakness, visual field deficits, and cognitive disturbances. Pathophysiology involves ischemia in regions with limited collateral circulation. Diagnosis relies on neuroimaging, particularly MRI. Management focuses on optimizing cerebral perfusion, risk factor control, and supportive therapy; prognosis depends on infarct size and underlying etiology.