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Comparison of short-term and survival outcomes for transanal natural orifice specimen extraction with conventional mini-laparotomy after laparoscopic anterior resection for colorectal cancer

Authors Zhou S, Wang X, Zhao C, Pei W, Zhou H, Liu Q, Liang J, Zhou Z, Wang X

Received 18 March 2019

Accepted for publication 4 June 2019

Published 1 July 2019 Volume 2019:11 Pages 5939—5948

DOI https://doi.org/10.2147/CMAR.S209194

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Cristina Weinberg

Peer reviewer comments 3

Editor who approved publication: Professor Bilikere Dwarakanath


Sicheng Zhou,* Xuewei Wang,* Chuanduo Zhao, Wei Pei, Haitao Zhou, Qian Liu, Jianwei Liang, Zhixiang Zhou, Xishan Wang

Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, People’s Republic of China

*These authors contributed equally to this work

Background: Transanal natural orifice specimen extraction (NOSE) in colorectal surgery has been introduced as a less invasive surgery. However, its long-term survival effects remain controversial. The aim of this study was to compare the short-term and long-term survival outcomes of transanal NOSE with those of the conventional laparoscopic approach with mini-laparotomy (LAP) for anastomosis construction and specimen extraction in sigmoid colon cancer or rectal cancer.
Methods: From January 2007 to January 2018, a retrospective study was conducted at the China National Cancer Center. In total, 52 consecutive patients who underwent laparoscopic anterior resection with NOSE were matched with an additional 52 patients who underwent conventional LAP for colorectal cancer.
Results: Patients in the NOSE group experienced shorter time to passage of flatus (2.8±0.8 vs 3.2±0.9 days; p=0.042), less pain (4.2±1.4 vs 5.4±1.7; p=0.003) and less analgesia required (7.7% vs 25.0%; p=0.032). After a median follow-up of 68.5 (range, 8–83) months, the two groups had similar 5-year overall survival rates (92.3% vs 94.2%; p=0.985) and disease-free survival rates (84.6% vs 86.5%; p=0.802).
Conclusion: Transanal NOSE for total laparoscopic anterior resection is safe and feasible with more advantages, including lower pain, lower tissue trauma and faster recovery of intestinal function. Moreover, with proper protection of the surgical route, transanal NOSE has the same long-term outcomes as conventional laparoscopic surgery.

Keywords: natural orifice specimen extraction, transanal specimen extraction, total laparoscopic resection, sigmoid colon cancer, rectal cancer, surgical outcomes
 

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