Vertebrobasilar artery syndrome

insufficiency /in·suf·fi·cien·cy/ (-sah-fish´in-se) inability to perform properly an allotted function.

adrenal insufficiency

1. hypoadrenalism; abnormally diminished activity of the adrenal gland.

adrenocortical insufficiency abnormally diminished secretion of corticosteroids by the adrenal cortex, as in Addison's disease.

aortic insufficiency defective functioning of the aortic valve, with incomplete closure resulting in aortic regurgitation.

cardiac insufficiency heart failure.

coronary insufficiency decrease in flow of blood through the coronary blood vessels.

insufficiency of the externi deficient power in the externi muscles of the eye, resulting in esophoria.

ileocecal insufficiency inability of the ileocecal valve to prevent backflow of contents from the cecum into the ileum.

insufficiency of the interni deficient power in the interni muscles of the eye, resulting in exophoria.

mitral insufficiency defective functioning of the mitral valve, with incomplete closure causing mitral regurgitation.

pulmonary insufficiency defective functioning of the pulmonary valve, with incomplete closure causing pulmonic regurgitation.

thyroid insufficiency hypothyroidism.

tricuspid insufficiency defective functioning of the tricuspid valve, with incomplete closure causing tricuspid regurgitation; it is usually secondary to systolic overload.

valvular insufficiency

1. dysfunction of a cardiac valve, with incomplete closure resulting in valvular regurgitation; named for the valve involved.

2. venous i.

velopharyngeal insufficiency failure of velopharyngeal closure due to cleft palate, muscular dysfunction, etc., resulting in defective speech.

venous insufficiency inadequacy of the venous valves with impairment of venous drainage, resulting in edema.

vertebrobasilar insufficiency transient ischemia of the brain stem and cerebellum due to stenosis of the vertebral or basilar artery.

vertebrobasilar insufficiency (verˈ·t

·brō·bāˑ·z

·ler inˈ·s

·fiˑ·sh

n·sē),

n a disorder caused by decrease of blood flow in the vertebral or basilar arteries due to atherosclerosis or compression placed on the external wall of the arteries. Symptoms may include loss of vision, dizziness, or nausea. Also called
VBI, vertebrobasilar circulatory disorders, or
posterior circulation ischemia.

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Aarskog syndrome Adie's syndrome adrenal insufficiency adrenocortical insufficiency AEC syndrome afferent loop syndrome Ahumada-del Castillo syndrome Alagille syndrome Albright's syndrome anterior cord syndrome aortic insufficiency Apert's syndrome cardiac insufficiency coronary insufficiency de Lange's syndrome ileocecal insufficiency insufficiency Kimmelstiel-Wilson syndrome Kugelberg-Welander syndrome	vertebral body vertebral canal vertebral column vertebral compression fracture vertebral foramen vertebral formula vertebral groove vertebral nerve vertebral notch vertebral rib vertebral subluxation complex vertebral unit vertebral vein vertebral-basilar artery occlusive syndrome vertebral-basilar system vertebral-venous system vertebrarium Vertebrata vertebrate vertebrated catheter vertebrectomy vertebro- vertebroarterial foramen vertebrobasilar Vertebrobasilar arteries Vertebrobasilar artery syndrome vertebrobasilar circulatory disorder vertebrobasilar insufficiency vertebrobasilar system vertebrochondral vertebrocostal vertebrocostal rib vertebrocostal trigone vertebrogenic vertebrosternal vertebrosternal rib verteporfin verteporfin-benzoporphyrin vertex vertex compression vertex presentation vertexometer vertical vertical angulation vertical banded gastroplasty vertical coordination vertical diplopia vertical growth phase vertical muscle of tongue vertical nystagmus vertical overlap	Vertebrate photoreceptor Vertebrate trachea Vertebrate trachea Vertebrate trachea Vertebrate viruses Vertebrate viruses Vertebrate viruses Vertebrate zoology Vertebrate zoology Vertebrate zoology Vertebrate zoology vertebrated catheter Vertebrates Vertebrates Vertebrates vertebration vertebratus Vertebre Vertebre Vertebre vertebrectomy Vertebro Basilar Artery vertebro- vertebro- Vertebro-Basilar Ischaemic Stroke Vertebro-iliac vertebroarterial foramen vertebrobasilar Vertebrobasilar Arterial Insufficiency Vertebrobasilar arteries Vertebrobasilar artery syndrome vertebrobasilar circulatory disorder Vertebrobasilar insufficiency Vertebrobasilar insufficiency Vertebrobasilar insufficiency Vertebrobasilar Ischemia vertebrobasilar system Vertebrobasilar Territory Ischemia vertebrochondral vertebrocostal vertebrocostal r vertebrocostal r vertebrocostal r vertebrocostal r's vertebrocostal r's vertebrocostal r's vertebrocostal rib vertebrocostal trigone vertebrogenic vertebrosternal vertebrosternal r vertebrosternal r vertebrosternal r vertebrosternal r's vertebrosternal r's vertebrosternal r's vertebrosternal rib Verteidigung, Bevölkerungsschutz und Sport Verteidigungbezirkskommando Verteilte Kuenstliche Intelligenz Vertep

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