Ischemic Stroke (Posterior Cerebral Artery)

Ischemic Stroke (Posterior Cerebral Artery) occurs when blood flow to the back part of the brain is blocked, causing damage to brain tissue. This area of the brain controls important functions like vision, memory, and some aspects of sensation. When the blood supply is interrupted, brain cells in this region begin to die, leading to sudden symptoms such as vision loss, difficulty recognizing objects, or problems with coordination. The condition affects the nervous system and can result in lasting disability depending on the severity and location of the blockage. Early recognition of symptoms is crucial because the brain damage can worsen quickly without treatment.

Ischemic Stroke (Posterior Cerebral Artery) is a type of cerebrovascular accident caused by an occlusion of the posterior cerebral artery (PCA), leading to ischemia and infarction of the brain regions it supplies. The PCA primarily supplies the occipital lobe, inferior temporal lobe, and parts of the thalamus and midbrain. The most common mechanism is embolism or thrombosis resulting in arterial occlusion. Clinically, it is significant due to its characteristic presentation with contralateral homonymous hemianopia, visual agnosia, and sometimes thalamic sensory loss or Weber syndrome if the midbrain is involved. Prompt diagnosis and management are critical to limit permanent neurological deficits and improve outcomes.