Left sided cerebellar<unk>  due to occlusion of a vertebral artery<unk>  is a condition in which the circulation to the cerebellum is impaired due to a lesion of the superior cerebellar artery, anterior inferior cerebellar artery or the posterior inferior cerebellar artery. Cardinal signs include vertigo, headache, vomiting, and ataxia. Cerebellar<unk> s account for only 2-3% of the 600,000<unk> s that occur each year in the United States. They are far less common than<unk> s which occur in the cerebral hemispheres. In recent years mortality rates have decreased due to advancements in health care which include earlier diagnosis through MRI and CT scanning. Advancements have also been made which allow earlier management for common complications of cerebellar<unk>  such as brainstem compression and hydrocephalus. Research is still needed in the area of cerebellar<unk>  management; however, several factors may lead to poor outcomes in individuals who have a cerebellar<unk> . These factors include: # Declining levels of consciousness # New signs of brainstem involvement # Progressing Hydrocephalus #<unk>  to the midline of the cerebellum (a.k.a. the vermis)
Cerebellar stroke syndrome
Brainstem stroke syndrome
Lateral pontine syndrome
Bickerstaff brainstem encephalitis
Vestibulocerebellar syndrome
Paraneoplastic cerebellar degeneration
Medial pontine syndrome
Lateral medullary syndrome