Which clinical history is associated with vertebrobasilar insufficiency?

Vertebrobasilar insufficiency refers to a condition where there is reduced blood flow in the vertebral and basilar arteries, which supply blood to the posterior circulation of the brain, particularly areas involved in balance and vision. The classic symptoms associated with this condition typically include visual disturbances, such as blurry vision, and coordination problems like ataxia. These symptoms arise because the areas of the brain responsible for processing visual information and maintaining balance are affected by inadequate blood supply.

Bilateral blurry vision paired with ataxia is indicative of issues within the posterior circulation, where interruptions in blood flow can lead to both visual disturbances and problems with motor coordination and balance. This combination of symptoms strongly points to vertebrobasilar insufficiency.

Other options present symptoms that are not primarily associated with vertebrobasilar insufficiency. For instance, unilateral headache and dizziness may suggest issues related to other vascular problems or migraine-related disorders, chest pain and shortness of breath are more aligned with cardiac or pulmonary conditions, and numbness in the extremities might indicate peripheral neuropathy or other neurological issues, rather than conditions specifically involving vertebrobasilar circulation. Therefore, the symptoms of bilateral blurry vision and ataxia accurately correspond to the known clinical manifestations of vertebrobasilar