The most common mechanism of occlusion of the vertebral artery or PICA is atherothrombosis. He had a left hemiparesis with grade 1 power at all muscle groups in the upper and lower limbs with. The majority (80%) of cases are caused by occlusion of the vertebral artery, which gives rise to the PICA and the anterior spinal artery before it joins with the opposite vertebral artery to form the basilar artery. (A) Right Horners syndrome and (B, C) right eye veers to right on. The rest of the cranial nerve examination was unremarkable. Anatomically the infarcted area in Wallenberg syndrome is supplied by the posterior inferior cerebellar artery (PICA). It turns out occlusion of the PICA accounts for only a small number of cases. The syndrome can also be due to occlusion of the vertebral artery, or the inferior, middle, or superior medullary vessels. The primary pathology of Wallenberg syndrome is occlusion of the posterior inferior cerebellar artery (PICA) or one of its branches (2). Wallenberg syndrome is also known as lateral medullary syndrome and posterior inferior cerebellar artery syndrome.
Large artery atherothrombotic causes account for about 75% of the cases followed by cardioembolism in 17% and vertebral dissection in 8%(1). Lateral medullary syndrome (also called Wallenbergs syndrome and posterior inferior cerebellar artery syndrome) is a disease in which the patient has difficulty with swallowing or speaking or both owing to one or more patches of dead tissue (known as an infarct) caused by interrupted blood supply to parts of the brain.
There was a predominance of middle aged men. Twenty percent of the ischaemic strokes occur in the posterior circulation. If clinicians assume that about half of these suffer from Wallenberg syndrome. Wallenberg syndrome is the most prevalent posterior ischaemic stroke syndrome. Wallenberg syndrome is a condition that affects the nervous system.
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