Korean J Cerebrovasc Surg.
2006 Dec;8(4):283-286.
A Middle Cerebral Artery AneurysmOriginating Near the Site of Anastomosis after Superficial Temporal Artery-Middle Cerebral Artery Bypass: Case Report
- Affiliations
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- 1Department of Neurosurgery, Pusan National University School of Medicine, Busan, Korea. md@medimail.co.kr
Abstract
- Superficial temporal artery-middle cerebral artery (STA-MCA) anastomosis is often performed for the management of the patients wth chronic cerebral ischemic lesions or moyamoya disease. Postoperative aneurysm formation at the anastomosis site or its close proximity is a very rare complication. A 44-year-old female underwent bilateral STA-MCA bypass due to moyamoya disease. Approximately 2 years after bypass surgery, an aneurysm of the recipient cortical artery near the site of the anastomosis was found. Surgical exploration of the region demonstrated an 5.4 x 6.4 x 5 mm aneurysm arising near the site of the anastomosis. The aneurysm was clipped, taking care to keep the bypass flowing. This aneurysm had a thick wall and appeared to be a true saccular aneurysm caused by hemodynamic stress. The author present a case of this unusual complication and provide a brief review of literature.
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