本文对CO_2激光显微手术治疗的49例病例进行了分析,这些病例包括颅内肿瘤39例,脑血管畸形2例,脊髓肿瘤8例。从这些病例中看出,CO_2激光显微手术尤其适用于位于颅底、脑干、脊髓等重要功能区部位的实质性肿瘤和大脑半球脑血管畸形。对于半球病变手术,激光强度在30～40W之间较为合适;对于脑干和脊髓病变手术,强度在15～25W之间即可。由于CO_2激光切割汽化好而凝固止血效果差,因此,对于血循丰富的,尤其是带有血窦的肿瘤,用CO_2激光手术效果欠佳。 In this paper, 49 cases of CO_2 laser microsurgery were analyzed. These cases included 39 cases of intracranial tumors, 2 cases of cerebrovascular malformations and 8 cases of spinal cord tumors. Seen from these cases, CO 2 laser microsurgery is especially suitable for substantial tumors and cerebral vascular malformations of the hemispheres located in important functional areas of the skull base, brain stem, spinal cord and the like. For hemispheric lesion surgery, laser intensity between 30 ~ 40W is more appropriate; for brain stem and spinal cord lesions surgery, the intensity can be between 15 ~ 25W. Because CO_2 laser cutting vaporization and coagulation hemostasis is poor, therefore, for blood-rich, especially with sinusoids tumors, with CO_2 laser surgery ineffective.