Conclusion : based on data from multiple canadian centers , age seems to be the primary determinant of outcome in endoscopic third ventriculostomy in pediatric patients 结论依据加拿大的多中心数据资料，经内窥镜行第三脑室造口术，患儿年龄是决定手术结果的第一位因素。
Objective : reports from relatively small series of pediatric patients predominantly from single centers have hampered accurate analysis of outcome from endoscopic third ventriculostomy 目的主要来自单中心的儿科患者小样本资料报告妨碍了准确分析经内窥镜行第三脑室造口术的疗效。
In such cases , if there are one fourth length of the canaliculus at least and no residual tumor cell , one - stage surgery of tumor resection and canaliculostomy is recommended 对于此类病例，只要能确定癌细胞清除完全而且泪小管剩馀至少四分之一长度，一次完成肿瘤切除和泪小管造口术是一个可行的方式。
