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目的探讨术中近距离放疗对改善低位直肠癌局部控制率的意义。方法对ＤｕｄｅｓＣ期低位直肠癌采用Ｍｉｌｅ’ｓ手术加术中高危复发区或瘤床置管后装放射，６～１０Ｇｙ／次×２和术后盆腔外放射，４０～５８Ｇｙ／４～６周。结果１２例置管３１根，置管治疗成功率９３．５％（２９／３１），中位随访２０个月，置管放射区内无１例复发，４例治疗相关并发症均发生在内、外放射剂量偏高病人。结论本文提示术中置管后装治疗不受解剖部位限制，操作方便且可进行分割放射，可作为低位直肠癌辅助治疗
Objective To explore the significance of intraoperative brachytherapy in improving the local control rate of low rectal cancer. METHODS: Dudes C stage low rectal cancer was treated with Mile’s surgery plus high-risk recurrence or intracranial intubation, followed by 6-10Gy/times×2 and postoperative pelvic radiation, 40-58Gy/4-6 weeks. Results Thirty-one patients underwent catheterization in 31 cases. The success rate of catheterization was 93.5% (29/31). The median follow-up period was 20 months. No recurrence occurred in the radiation area of the catheter, and 4 treatment-related complications occurred. Patients with high radiation doses. Conclusion This article suggests that postoperative placement of the tube after treatment is not limited by anatomical sites, is easy to perform and can perform segmented radiation, and can be used as an adjuvant treatment for low rectal cancer.