Abstract

BackgroundAnastomotic leakage is a common and serious complication after rectal cancer surgery. The role of transanal drainage tube (TDT) in the prevention of anastomotic leakage is still controversial. The aim of this study was to evaluate the role of TDT in preventing anastomotic leakage. MethodsTwo reviewers individually searched the PubMed, Embase and Cochrane Library ranging from January 2000 to June 2022. The pooled odds ratio (ORs) and weighted mean difference (WMD) with the 95% confidence interval (95% CI) were used to assess anastomotic leakage and other parameters. ResultsA total of 3383 patients (1508 in the TDT group and 1875 in the cohort study group) were included in 13 studies. The study found that patients treated with TDT had a lower incidence of anastomotic leakage with or without neoadjuvant radiotherapy. Moreover, patients who received TDT had lower rates of reoperation and tended to reduce the severity of anastomotic leakage. ConclusionsFor rectal cancer patients without defunctioning stoma, TDT could reduce the incidence of anastomotic leakage, decrease the reoperation rate of patients, and tend to reduce the severity of anastomotic leakage. More RCT are needed to assess the role of TDT in rectal cancer surgery.

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