BACKGROUND AND PURPOSE Incapacitating vertebrobasilar insufficiency is generally associated with bilateral vertebral artery disease, whereas unilateral vertebral artery stenosis usually is clinically silent. Regional brain perfusion has not been part of the routine evaluation of patients with vertebrobasilar insufficiency. This report describes two patients who had isolated unilateral vertebral...

Article contains the review of literature data in vertebrobasilar insufficiency. Characteristic system blood vessels topography. etiology and pathogenesis brain stem circulation disturbances are described. The biochemical pathophysiological mechanisms tissue ischem^ changes. main clinical manifestations modern methods insufficiency diagnostic discussed.

background: the goal of this study was to determine the reliability of tcd in evaluation of vertebrobasilar arteries in comparison with brain mra in patients suffering from acute vertebrobasilar stroke. methods: samples were patients with definite clinical diagnosis of vertebrobasilar stroke. for all patients brain mri, mra and tcd were performed during the first 48 hours of admission. basilar ...

The aim of this study was to observe the usefulness of betahistine dihydrochloride--Betaserc--in therapy for vestibular disorders in patients with vertebrobasilar insufficiency. Two groups of patients, in each of which were 150 patients (mean age, 52.2 years), were tested on the basis of videonystagmography and stabilometry. Betaserc was administrated in two separate doses: 8 mg three times dai...

Audiovestibular symptoms are the first and often the only clinical signs of vertebrobasilar insufficiency. The aim of our investigation was to analyze the results of caloric and electronystagmographic investigation of vascular-vestibular disorders among patients with vertebrobasilar insufficiency. We examined a total of 55 men (mean age, 51.8 +/- 8.2 years)--a primary group of 35 men with prove...

Using technetium-99m-labeled hexamethylpropyleneamineoxime [( 99mTc]HM-PAO) and single-photon emission computed tomography, we measured changes in regional cerebral blood flow in a 58-year-old man during an attack of vertebrobasilar insufficiency. Angiography demonstrated compression of the left vertebral artery by the osteophytes of cervical spondylosis when the patient turned his head to the ...

Background: vertigo may be a warning sign of impending vertebrobasilar stroke. Objective: To investigate the role of brain stem auditory evoked potential (BAEP), electronystagmography (ENG) studies and results of transcranial Doppler (TCD) in patients with vertigo of vertebrobasilar origin and patients with vertigo of non-vertebrobasilar origin. Methods: Twenty five patients with vertigo aged 4...