The therapeutic effect of superficial temporal artery-middle cerebral artery bypass in the treatment of Moyamoya disease

Abstract

Objective To evaluate the therapeutic effect of superficial temporal artery-middle cerebral artery(STA-MCA) bypass in the treatment of Moyamoya disease.Methods From April 2009 to June 2013,STAMCA bypass operatioas were performed in 28 patients (15 females/13 males,age 6-49 years) with Moyamoya disease.The frontal and parital branches of the superficial temporal artery were separated under the microscope,then anastomosed with the M3 or M4 segment of middle cerebral artery.All clinical and radiological data were retrospectively reviewed.Results All of the operations were successful.Postoperative CT angiography or DSA imaging demonstrated patency of the bypass in all patients.CT perfusion obviously demonstrated improvement of cerebral perfusion.The ischemic symptoms were relieved in most of the patients.3 patients suffered transient ischemic attack (TIA).In 4 patients,the incision showed small amount of exudate and wound healing delayed.During the follow-up period,no cerebral homorrhage or infarction was observed.Conclusion This study showed that the superficial temporal artery-middle cerebral artery bypass could achieve good therapeutic effect in the treatment of Moyamoya disease during the short-term follow-up,but its long-term outcome needs further study. Key words: Moyamoya disease; Superficial temporal artery-middle cerebral artery bypass; Treatment outcome