本邦における脳動脈瘤治療の現況 : 全国アンケート調査より(<特集>無症候性脳動脈瘤の治療方針)

概要

論文の詳細を見る
A nationwide questionnaire investigated the current therapeutic strategy for asymptomatic cerebral aneurysms in the 1102 neurosurgical institutes in Japan. Replies were received from 445 institutes (40.4%). The institutes were divided into 3 groups: university, category A and category C hospitals. The mean number of operated cerebral aneurysms in 1997 was 25.1. Only 21% of institutes operated in more than 35 cases. Direct surgery was performed in less than 10 cases in 22.9% of institutes. Asymptomatic cerebral aneurysms accounted for 23% of operated cases, but significantly fewer in category C hospitals. The mean number of endovascular procedures performed for cerebral aneurysms was 2.7. A few asymptomatic cerebral aneurysms were treated by endovascular surgery (mean number was 0.86). Most Japanese neurosurgeons selected direct surgery for asymptomatic cerebral aneurysms, especially in the anterior circulation. More than half of the institutes selected endovascular surgery or course observation rather than direct surgery for the posterior circulation aneurysms. About 90% of cases of both symptomatic and asymptomatic cerebral aneurysms are treated by direct surgery in Japan. However, the use of endovascular surgery to treat cerebral aneurysms is apparently increasing.
日本脳卒中の外科学会の論文
2000-01-31