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Transanal Pull-Through Procedure with Delayed versus Immediate Coloanal Anastomosis for Anus-Preserving Curative Resection of Lower Rectal Cancer: A Case-Control Study

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This case-control study compared the effectiveness and safety of transanal pull-through procedure (TPP) with delayed or immediate coloanal anastomosis (CAA) for anus-preserving curative resection of lower rectal cancer. Lower rectal cancer patients (n = 128) were hospitalized between January 2003 and December 2013 for elective anus-preserving curative resection through a TPP with delayed (n = 72) or immediate (n = 56) CAA. Main outcome measures including surgical safety, resection radicality, and defecation function were assessed. The two groups were comparable in age, sex, gross pathology, histology, and tumor-node-metastasis staging. Both the delayed and immediate CAA TPPs had similar resection radicality and safety profiles. The immediate CAA was associated with a significantly higher risk of anastomotic leakage and defecation impairment. None of patients in the delayed CAA group experienced anastomotic leakage. In conclusion, TPP with delayed CAA may be superior to immediate CAA in minimizing the risk of anastomotic leakage and relevant surgical morbidities, and does not require a temporary ileostomy and second-look restoration of ostomy.
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Document Type: Research Article

Affiliations: Department of General Surgery, Affiliated Sixth People’s Hospital of Shanghai Jiao Tong University, Shanghai, China

Publication date: June 1, 2016

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