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目的提高岩斜区脑膜瘤的手术效果。方法回顾性分析我院自１９９５年１月至１９９７年１１月连续收治的１８例岩斜区脑膜瘤。１３例肿瘤大于４．５ｃｍ。采用了经颞下小脑幕、颞下－乙状窦前、颞下－迷路、枕下－极外侧入路。结果肿瘤全切除１１例（６１％），其中２例术后发生Ｗｅｂｅｒ’ｓ综合征，１例死于肺炎。结论影响手术预后的最主要因素是小脑前下动脉（ＡＩＣＡ）、小脑上动脉（ＳＣＡ）和小脑后下动脉（ＰＩＣＡ）及其供应脑干的穿通支被肿瘤包裹和脑干受累，血管因素可能更为重要。
Objective To improve the surgical effect of petroclival meningioma. Methods Retrospective analysis of 18 cases of petroclival meningioma admitted to our hospital from January 1995 to November 1997. 13 cases of tumors greater than 4.5cm. Using the temporal infratentorial tentorium, the infratemporal-sigmoid sinus, infratemporal - lost, suboccipital - pole lateral approach. Results Total tumor resection in 11 cases (61%), 2 cases of Weber’s syndrome occurred after surgery, 1 case died of pneumonia. Conclusions The main factors affecting the prognosis of surgery are the involvement of anterior communicating artery (AICA), superior cerebral artery (SCA) and posterior inferior cerebellar artery (PICA) More important.