Localized or diffuse reduction in blood flow through the vertebrobasilar arterial system, which supplies the BRAIN STEM; CEREBELLUM; OCCIPITAL LOBE; medial TEMPORAL LOBE; and THALAMUS. Characteristic clinical features include SYNCOPE; lightheadedness; visual disturbances; and VERTIGO. BRAIN STEM INFARCTIONS or other BRAIN INFARCTION may be associated.
Also Known As:
Basilar Artery Ischemia; Basilar Insufficiency; Vertebral Artery Ischemia; Vertebro-Basilar Insufficiency; Vertebro-Basilar Ischemia; Vertebrobasilar Dolichoectasia; Vertebrobasilar Ischemia; Artery Insufficiencies, Basilar; Artery Insufficiencies, Vertebral; Artery Insufficiency, Basilar; Artery Insufficiency, Vertebral; Artery Ischemia, Basilar; Artery Ischemia, Vertebral; Artery Ischemias, Basilar; Artery Ischemias, Vertebral; Artery Stenoses, Basilar; Artery Stenoses, Vertebral; Artery Stenosis, Basilar; Artery Stenosis, Vertebral; Basilar Artery Insufficiencies; Basilar Artery Ischemias; Basilar Artery Stenoses; Basilar Insufficiencies; Dolichoectasia, Vertebrobasilar; Dolichoectasias, Vertebrobasilar; Insufficiencies, Basilar; Insufficiencies, Basilar Artery; Insufficiencies, Vertebral Artery; Insufficiencies, Vertebro-Basilar; Insufficiencies, Vertebrobasilar; Insufficiency, Basilar; Insufficiency, Basilar Artery; Insufficiency, Vertebral Artery; Insufficiency, Vertebro-Basilar; Insufficiency, Vertebrobasilar; Ischemia, Basilar Artery; Ischemia, Vertebral Artery; Ischemia, Vertebro-Basilar; Ischemia, Vertebrobasilar; Ischemias, Basilar Artery; Ischemias, Vertebral Artery; Ischemias, Vertebro-Basilar; Ischemias, Vertebrobasilar; Stenoses, Basilar Artery; Stenoses, Vertebral Artery; Stenosis, Basilar Artery; Stenosis, Vertebral Artery; Vertebral Artery Insufficiencies; Vertebral Artery Ischemias; Vertebral Artery Stenoses; Vertebro Basilar Insufficiency; Vertebro Basilar Ischemia; Vertebro-Basilar Insufficiencies; Vertebro-Basilar Ischemias; Vertebrobasilar Dolichoectasias; Vertebrobasilar Insufficiencies; Vertebrobasilar Ischemias; Basilar Artery Insufficiency; Basilar Artery Stenosis; Vertebral Artery Insufficiency; Vertebral Artery Stenosis