单吻合器联合外翻脱出技术在直肠癌超低位前切除中的应用

目的探讨单吻合器联合外翻脱出技术在早期低位直肠癌保肛手术中的应用及其适应证和操作要点。方法回顾性分析早期低位直肠癌前切除保肛手术43例,按手术技术分为两组,实验组应用外翻脱出式单吻合器技术,对照组采用传统的双吻合器吻合技术。比较两组患者的肿瘤下缘与肛侧切缘的距离、局部复发率、并发症发生率、肛门控便功能以及手术费用等。结果远切缘长度:实验组为2.2 cm±0.2 cm,明显大于对照组1.9 cm±0.4 cm(P=0.006)。齿状线与远切线的距离:实验组1.3 cm±0.3 cm,对照组1.9 cm±0.5 cm,后者明显大于前者(P<0.001)。实验组无局部复发而对照组有3名患者术后1年内局部复发。实验组吻合口瘘发生率、手术器械费用均低于对照组,两组肛门控便、控气功能无明显差异,实验组1例夜间肛门周围有少量粪便污染,清醒时控便控气功能均好。结论直肠外翻脱出式单吻合器技术用于超低位直肠癌保肛手术具有手术切除彻底、安全性高、局部复发率低、肛门控便功能好、手术费用低等优点,尤其适用于早期低位直肠癌。

Application of single stapler combined with prolapsing technique in anterior resection of ultra-low rectal cancer

OBJECTIVE: Evaluation of single stapler combined with prolapsing technique for anus-preserving of ultra-low rectal cancer and its indication as well as surgical procedure. METHODS: Forty-three patients with ultra-low low rectal cancer suitable for anterior resection were divided into two groups, single stapler combined with prolapsing technique was applied for experiment group, conventional double stapler technique was applied for control group. To compare the distal margin, local recurrence rate, complications, anal continence function and expenses. RESULTS: The distal margin of experimental group is significantly longer than that of control group (2.2 cm +/- 0.2 cm VS 1.9 cm +/- 0.4 cm, P = 0.006). The distance between dentate line and distal incision line of control group is much longer than experimental group (1.9 cm +/- 0.5 cm VS 1.3 cm +/- 0.3 cm, P < 0.001). There is no recurrence in experimental group but 3 cases recurrence within 1 year in control group. The anastomose fistula rate, instrument expenses of experimental group are less than those of control group. There is no distinct in anal continence between two groups. Occasional minor soiling is present in 1 case of experimental group. CONCLUSION: Single stapler combined with prolapsing technique is superior to double stapler technique for anus-preserving of ultra-low rectal cancer.