枕部经小脑幕入路松果体区肿瘤切除术中直视下第三脑室底造瘘术

目的 探讨枕部经小脑幕(Poppen)入路显微手术切除松果体区肿瘤术中直视下第三脑室底造瘘术的技巧及疗效.方法 回顾性分析5例松果体区肿瘤的临床资料,均合并非交通性脑积水.病人均采用Poppen入路切除肿瘤,在显微镜直视下行第三脑室底造瘘术.结果 肿瘤均达显微镜下全切除,复查MRI未见肿瘤残余,矢状位可见造瘘口有脑脊液流动信号,脑积水均缓解.病理检查显示:成熟畸胎瘤1例,非成熟畸胎瘤2例,混合性生殖细胞瘤2例;4例恶性肿瘤术后均行放、化疗.术后并发眼球运动障碍1例,短暂性尿崩症1例.随访3～8个月,未出现肿瘤和脑积水复发.结论 Poppen入路切除松果体区肿瘤术后仍有一定比例的脑积水发生,术中直视下行第三脑室底造瘘术可避免术后脑积水的发生,值得临床推广.

Third ventriculostomy under direct vision in microsurgery for pineal region tumors via occipital transtentorial approach

Objective To investigate the surgical techniques for and efficacy of intraoperative direct third ventriculostomy in pineal region tumor surgery via occipital transtentorial(Poppen) approach.Methods Clinical data of 5 patients with pineal region tumors and non-communicating hydrocephalus were analyzed retrospectively.Tumor resection via Poppen approach and intraoperative third ventriculostomy under microscope were performed in all the patients.Results Total tumor resection under microscope was achieved in al...