目的 :探讨脑内肿瘤切除术中急性脑膨出的形成原因及防治措施。方法 :通过对 9例脑内肿瘤切除术中急性脑膨出病人有关材料进行回顾性分析 ,探讨其形成原因及防治方法。结果 :脑内肿瘤切除术中急性脑膨出原因中颅内血肿形成 6例 ,严重脑挫裂伤脑水肿 1例 ,呼吸道通气不良 1例 ,下视丘损伤引起弥漫性脑肿胀 1例。结论 :脑内肿瘤切除术中急性脑膨出的主要原因为颅内血肿、脑挫裂伤、呼吸道通气不良及下视丘损伤 ;防止颅内压骤然改变 ,使颅内压梯度相对稳定是预防脑内肿瘤切除术中急性脑膨出的关键 ;彻底清除颅内血肿 ,保持呼吸道通畅 ,过度换气 ,使用脱水剂为是治疗急性脑膨出的有效方法 Objective: To investigate the causes and preventive measures of acute brain bulge in intracranial tumor resection. Methods: Retrospective analysis of 9 cases of patients with acute encephalocele during intracranial tumor resection was carried out to discuss the causes and prevention methods. Results: There were 6 cases of intracranial hematoma, 1 case of cerebral edema of cerebral contusion and laceration, 1 case of respiratory ventilation dysfunction and 1 case of diffuse brain swelling caused by hypothalamic injury. Conclusion: The main causes of acute encephalocele during intracranial tumor resection are intracranial hematoma, cerebral contusion and laceration, poor ventilation of the respiratory tract and hypophyseal injury. Preventing sudden changes of intracranial pressure, making the intracranial pressure gradient relatively stable is a preventive measure Brain tumor resection in the key to acute encephalocele; complete removal of intracranial hematoma, to maintain airway patency, hyperventilation, the use of dehydration agent is an effective method of treatment of acute encephalocele