Perimedullary arteriovenous malformations: angiostructure, surgical treatment

Yu. P. Zozulya, E. I. Slynko, O. A. Tsymeyko, A. G. Lugovsky

Abstract


The structural, radiologic features of perimedullary arteriovenous malformations in 21 consecutive cases were presented and to evaluate the results of surgical and endovascular treatment the current study was undertaking. Perimedullary arteriovenous malformations was divided for 5 angiostructural types: I — high vertebral artery arteriovenous shunts, are draining perimedullary and paravertebral (AVF); II — low vertebral artery arteriovenous shunts, are draining perimedullary and paravertabral (AVF); III — intradural perimedullary direct arteriovenous fistulas in thoracic region (AVF); IV — perimedullary direct arteriovenous fistulas in the region of spinal cord conus (AVF); V — perimedullary arteriovenous malformations (AVM). Their angioarchitecture can only be assessed by selective spinal angiography. The patient were treated by endovasal, surgical or combiner occlusion\resection. The one patients with high vertebral artery arteriovenous shunts was died. In 6 patients was observed prominent regress of neurological signs, in 8 — partial regress, 5 remain unchanged. In one patient the neurological signs increase.

Keywords


артеріовенозна фістула; спинний мозок.

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