Digital subtraction angiography of global cerebral blood flow of patients with central vertigo

Objective:To investigate the morphological changes of cerebral blood vessels by digital subtraction angiography(DSA) in patients with central vertigo,so as to provide references for diagnosis and treatment of patients with central vertigo.Methods: Ninety-two patients suffering from central vertigo were subjected to cerebral angiography through femoral artery.The types,proportion,and distribution(site predilection and number of involved vessels) of the cerebrovascular abnormalities were observed and analyzed.Results: Of the 92 patients with central vertigo,cerebrovascular lesions were found in 137 sides,including 15(10.95%)anterior circulation lesions and 122(89.05%)posterior circulation lesions.Thirty-one(33.7%)patients had 2 or more lesions.The most common lesion was vertibroarterial lesion accompanied with other cerebrovascular stenosis.The lesions included 39(28.47%) sides with vertibro-basilar stenosis or occlusion,13(9.49%) sides with posterior cerebral artery stenosis or occlusion,and 59(43.06%) sides with posterior circulation abnormalities.Conclusion: The posterior circulation stenoses or abnormalities might be the major reasons for central vertigo in middle-and old-age patients.