脳血管撮影中の破裂脳動脈瘤再破裂の危険性

Risk Factors of Cerebral Aneurysm Re-rupture during Angiography

I．はじめに

　脳血管撮影中に破裂脳動脈瘤が再破裂することはこれまで稀と考えられてきた．すなわち著者らが渉猟し得た限りでは1981年までに92例の報告例をみるにすぎない．しかし著者らは破裂脳動脈瘤患者295例中13例（4.4％）に脳血管撮影中の再破裂を認めた．そこで脳血管撮影中の再破裂に関与する危険因子とその予防策について検討を加えた．

Although re-rupture of cerebral aneurysm duringangiography has been reported occationally, we haveencountered 13 such patients during eight years since1974, the incidence corresponding to 4.4 percent of295 consecutive aneurysm patients on whom a totalof 467 angiographies were performed. Extravasationon angiogram was noticed in 10 of these patients.

We carefully analyzed the following factors todetermine which one is significantly related to aneu-rysm re-rupture during cerebral angiography.