A Multicenter Study Evaluating Natural Orifice Specimen Extraction Surgery for Rectal Cancer
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01.11.2019 |
Liu Z.
Efetov S.
Guan X.
Zhou H.
Tulina I.
Wang G.
Tsarkov P.
Wang X.
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Journal of Surgical Research |
10.1016/j.jss.2019.05.034 |
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© 2019 Elsevier Inc. Background: Low anterior resections are increasingly performed laparoscopically for rectal cancer. Recently, natural orifice specimen extraction surgery (NOSES) has been reported as an alternative approach without additional incisions or extensions. In this study, we aimed to evaluate the safety and feasibility of NOSES by comparing the short-term outcomes with those of conventional laparoscopic resection (CLR) in a multicenter retrospective study from China and Russia. Methods: The retrospective multicenter study was conducted at three centers between January 2015 and December 2017. Relevant collected data included patient demographics, operative parameters, and postoperative complications. All procedures were performed using either a NOSES or a CLR approach. Results: The data of a total of 768 consecutive patients with rectal cancer were retrospectively analyzed, including 412 CLR and 356 NOSES cases. The two groups were comparable for all demographics and characteristics except for the median tumor size (P = 0.038). No difference was found in the operative time and number of retrieved lymph nodes. Intraoperative complications and positive resection margins were nil in both groups. No difference was found in the time to first flatus (P = 0.150), time to first defecation (P = 0.084), length of postoperative hospital stay (P = 0.152), anastomotic leakage (P = 0.377), and intra-abdominal abscess (P = NA). The CLR group but not the NOSES group had incisional hernia or wound infection events, although the difference between groups was not significant (P = 0.253). Conclusions: The NOSES procedure is a well-established strategy and may be considered as an alternative procedure to CLR for rectal cancer. However, the long-term benefits of this approach require further evaluation.
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