目的探讨运用吻合器施行低位直肠癌保肛根治术的适应证、手术方法和相关技巧。
Objective: To investigate the indication, operative methods and correlative techniques of anus-preserving radical resection for lower rectal carcinoma by using stapling device.
施行扩大性根治术病例中近半数病变位于腹膜返折以下，其中半数病例有上方转移。
In the extended radical operation abroud half of the all patients cancer is belowtheperitoneal reflection.
结论高龄癌症病人施行d 2根治术是安全的，充分的术前准备和仔细的处理并发症是减少死亡率的关键。
Conclusion it is secure to perform D2 dissection on aged cancer patients. Preoperative preparation and careful treatment of complications are important to decrease the mortality.
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