[Vertebro-basilar insufficiency syndrome: preoperational diagnosis].

Indications for surgery of vertebro-basilar insufficiency are: stenosis or occlusion due to atherosclerosis. The initial parts of carotid, subclavian arteries or brachiocephalic trunk one must frequent involved. From the other hand arterial compression on vertebral arteries (diskopathies or osteopathies) leads to symptoms of cerebral ischaemia. In diagnosis very important are history of disease, physical examination and neurologic assessment. Additional procedures consisted of: color Doppler-scan, transcranial Doppler, cerebral CT-scan and angiography. By-pass of stenotic or occlusive segment of artery is procedure of choice in this disease.