거대 소뇌교각 종양의 복합 접근법시 S자형 정맥동 결찰 = Combined Approach for Large CPA Tumor with Sacrifice of Sigmoid Sinus

다국어 초록 (Multilingual Abstract)

With large CPA tumor(>3cm), brain stem is usually displaced and distorted to contralateral side. It is important to minimize retraction to protect brain stem and to lower morbidity. In our previous report, we reported the result and method of combined approach for large CPA tumor.
In order to minimize brain stem retraction and to get good operating field, three of 7 cases of large CPA tumor with combined approach were operated with sacrifice of sigmoid sinus.
The sigmoid sinus can be sacrificed if it can be angiographically verified that the sagittal sinus represents the major drainage to the contralateral sigmoid sinus. During operation, if pressure difference between before and after occlusion of sinus is less than lOmmHg and any brain swelling does not develop after occlusion, the sigmoid sinus can be sacrificed.