A comparative study of laparoscopic transanal total mesorectal resection (TaTME) and total mesorectal resection (TME)

Abstract

Objective To observe clinical outcome of laparoscopic trans-anal total mesorectal resection (TaTME) and total mesorectal resection (TME) in patients with low rectal cancer. Methods From May 2014 to November 2016, clinical data of 83 patients with low rectal cancer who received TME were retrospectively analyzed, including 41 patients in TaTME group and 42 patients in TME group. Statistical analysis were performed by using SPSS 21.0 software. Measurement data, such as gastrointestinal indexes and anal function score were expressed as (±s), and were examined by independent test. Count data such as postoperative complications were examined by chi square test. Kaplan-meier method was used for survival analysis and log-rank test was performed. A P value <0.05 was considered as statistically significant difference. Results The operation time and blood loss in TaTME group were more than those in TME group, and the postoperative recovery indexes were better than those in TME group respectively (P 0.05). Six months after surgery, Comparison of Kirwan grading of anal function between the two groups showed that the rate of good anal function in TaTME group was better than that in TME group (P 0.05). Conclusion Laparoscopic TaTME in the treatment of low rectal cancer is safe and feasible, and its overall efficacy is better than that of TME, which could be widely used in clinical application. Key words: Rectal neoplasms; Mesentery; Laparoscopes; Total mesoredtal excision