１０５例脑ＡＶＭ患者行伽玛刀治疗，术后随访１２～４４月。按Ｓｐｅｔｚｌｅｒ－Ｍａｒｔｉｎ法分类，术后４１月病巢闭塞率为Ⅱ度８７５％，Ⅲ度６８１％，Ⅳ度７０６％，Ⅴ度３０％，Ⅵ度６６７％。病灶周围水肿６２例（占５９０％），４８例在６～１８月出现。脑水肿持续６～３８月（平均１４７月）。５例脑出血（２例为再出血），１例灶区形成囊肿。无放射性坏死或死亡病例。病巢完全闭塞后６～２８月未见复通。探讨并发症的发生机制、相关因素及预防措施。应重视并发症，强调随访的重要性 105 cases of brain AVM patients underwent gamma knife treatment, followed up for 12 to 44 months. According to the Spetzler-Martin method, the rate of occlusion of the nest at 41 months after operation was 87.5%, 68%, 73.6%, 30%, 66.7%, respectively. Edema around the lesion in 62 cases (59  0%), 48 cases occurred in 6 to 18 months. Brain edema lasts 6 to 38 months (mean, 14 July). 5 cases of cerebral hemorrhage (2 cases of rebleeding), 1 case of cyst formation area. No cases of radioactive necrosis or death. Nest completely blocked 6 to 28 months after no pass. To explore the mechanism of complications, related factors and preventive measures. Should pay attention to complications, emphasizing the importance of follow-up