Sudden deafness and anterior inferior cerebellar artery infarction. The anterior inferior cerebellar artery infarcts: a clinical-magnetic resonance imaging study. Cerebellar infarction in the territory of the anterior and inferior cerebellar artery. As such these features are discussed in the generic article: cerebral infarction. Generally, the features are those of brain infarction but in the anterior cerebellar artery vascular territory: middle cerebellar peduncle, inferolateral portion of the pons, flocculus, and anteroinferior surface of the cerebellum. The main cause of AICA territory stroke is atherosclerosis, but can also be a lacunar infarct due to hypertension or thromboembolism, although sometimes the cause is not known. This phenomenon triggers a cascade of events at a cellular level, that if the circulation is not restored in time, will lead to cell death. Vertigo (can be central or peripheral due to the arterial supply) is the most common symptom associated with an AICA infarct, however, it is normally associated with neurological signs and symptoms such as facial weakness, hypoacusis, facial sensory loss, crossed sensory loss, gait ataxia, limb ataxia and Horner’s syndrome 4-6. In AICA syndrome, the neurological symptoms described above are the symptoms often seen first 7.Īcute interruption of blood flow through the AICA which leads to deprivation of oxygen and glucose in the vascular territory supplied. AICA territory infarcts are rare, comprising ~1% of ischemic cerebellar strokes 2.
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