[The structure and hemodynamics of arteriovenous malformations of the spinal cord].

The structure and hemodynamics of arteriovenous malformations of the spinal marrow are first described in the Russian literature on the basis of 93 cases with spinal marrow arteriovenous aneurysms (SMAA) verified by selective spinal angiography. The angiographic pattern of SMAA (their site, blood supply, and ways of outflow) is given in detail. Analysis and clinical tests made it clear that 80% of the patients had subarachnoidal hemorrhage and 60% had recurrent and multiple hemorrhage. Prior to angiography 35 patients had undergone myelography with water soluble contrast agents and 42 had magnetic resonance imaging. Combined vascular lesions in the spinal marrow and other organs were revealed in 20% of the patients. The malformations were divided into 4 types by the angiographic findings of their structure and hemodynamic parameters.