Two Stage Operation for Large Cerebral Arteriovenous Malformation

ABSTRACT

This report describes three cases of large arteriovenous malformation which were removed totally with two stage operation. When a large arteriovenous malformtaion had to be removed, prediction of profuse bleeding and brain swelling could be made. We clipped large feeding arteries and arteires and made a cleft around the AVM during the first operation, and the progressive reduction of the shunt flow by clipping the dominant peduncles on after the other diminished the risk of profuse bleeding and brain swelling. 7 to 10 days later, we removed AVM totally as the second operation. All three lesions were resected by microsurgical techniques, and the results were excellent. The rationale for the two stage operation for large cerebral AVM is discussed.