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目的 探讨第四脑室肿瘤的发病特点、最佳诊断方法及手术注意事项。方法 21例病人术前均经CT或MR确诊。除1例仅行脑室腹腔分流外,其余20例行21次肿瘤切除术。结果 显微镜下全切10例;肉眼下全切7例;大部切除4例。术后死亡1例。结论 术前确诊主要靠影像学诊断,以MR为最佳。显微镜下手术全切率较高,术中出现呼吸节律改变,甚至呼吸暂停,仍应争取切除肿瘤,求得较好预后。
Objective To investigate the incidence of the fourth ventricle tumor, the best diagnostic methods and surgical precautions. Methods Twenty-one patients were confirmed by CT or MR preoperatively. Except for 1 case, only the peritoneal shunt of the ventricle was performed. The remaining 20 cases underwent 21 tumor resections. Results under microscope 10 cases of total excision; under the naked eye total resection in 7 cases; the majority of resection in 4 cases. One patient died after operation. Conclusion Preoperative diagnosis mainly depends on imaging diagnosis, with MR as the best. Under the microscope, the high rate of surgical resection, respiration rhythm changes during surgery, or even apnea, should still strive for removal of the tumor, to obtain a better prognosis.