Occlusion and stenosis of basilar artery

This condition involves blockage or narrowing of the basilar artery, a major blood vessel that supplies oxygen-rich blood to the brainstem, cerebellum, and parts of the brain. When this artery becomes blocked by blood clots or narrowed by atherosclerosis, it can cause serious brainstem strokes affecting balance, coordination, vision, and vital functions. Rapid medical intervention is essential to prevent permanent disability or death.