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Yang et al. Mini-invasive Surg 2021;5:11 Mini-invasive Surgery
DOI: 10.20517/2574-1225.2021.06

Original Article Open Access

Laparoscopic Roux-en-Y gastric bypass for excess
weight and diabetes: a multicenter retrospective

cohort study in China

Wah Yang , Shaihong Zhu , Zhong Cheng , Nengwei Zhang , Liangping Wu , Yi Chen , Jingge Yang ,
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1
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Shuqing Yu , Tengfei Yang , Ding Ding , Jason R. Waggoner , Michael L. Schwiers , Elliott J. Fegelman ,
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Cunchuan Wang 1
1 Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou 510630, Guangdong, China.
2 Department of General Surgery, Third Xiangya Hospital, Central South University, Changsha 410083, Hunan, China.
3 Department of Gastrointestinal Surgery, West China Hospital of Sichuan University, Chengdu 610041, Sichuan, China.
4 Department of General Surgery, Laparoscopic Surgical Center, Beijing Shijitan Hospital, Capital Medical University, Beijing
100069, China.
5 Surgical Center of Thyroid Diabetes, General Hospital of Guangzhou Military Command of PLA, Guangzhou 510010,
Guangdong, China.
6 Johnson & Johnson Medical (Shanghai) LTD, Shanghai 200030, China.
7 Ethicon Endo-Surgery, Inc., Johnson & Johnson, Cincinnati, OH 45242, USA.
Correspondence to: Prof. Cunchuan Wang, Department of General Surgery, First Affiliated Hospital of Jinan University, 613
Huangpu Avenue West, Guangzhou 510630, Guangdong, China. E-mail: twcc@jnu.edu.cn; Prof. Shaihong Zhu, Department of
General Surgery, Third Xiangya Hospital, Central South University, No. 138 Tongzipo Road, Yuelu District Changsha, Hunan 410013,
China. E-mail: shzhu@mail.csu.edu.cn; Prof. Nengwei Zhang, Department of General Surgery, Laparoscopic Surgical Center, Beijing
Shijitan Hospital, Capital Medical University, No. 10 Tieyilu, Haidian District, Beijing 100069, China. E-mail: zhangnw1@sohu.com;
Prof. Zhong Cheng, Department of Gastrointestinal Surgery, West China Hospital of Sichuan University, No.37 Guoxue Alley,
Wuhou District, Chengdu 610041, Sichuan, China. E-mail: zhongcheng63@126.com; Prof. Liangping Wu, Surgical Center of Thyroid
Diabetes, General Hospital of Guangzhou Military Command of PLA, No. 111 Liuhualu, Guangzhou 510010, Guangdong, China.
E-mail: drwulp@163.com
How to cite this article: Yang W, Zhu S, Cheng Z, Zhang N, Wu L, Chen Y, Yang J, Yu S, Yang T, Ding D, Waggoner JR, Schwiers
ML, Fegelman EJ, Wang C. Laparoscopic Roux-en-Y gastric bypass for excess weight and diabetes: a multicenter retrospective
cohort study in China. Mini-invasive Surg 2021;5:11. http://dx.doi.org/10.20517/2574-1225.2021.06
Received: 15 Jan 2021 First Decision: 5 Feb 2021 Revised: 18 Feb 2021 Accepted: 24 Feb 2021 Published: 9 Mar 2021
Academic Editor: Giulio Belli Copy Editor: Yue-Yue Zhang Production Editor: Yue-Yue Zhang

Abstract
Aim: The aims of this study were to better understand the outcomes of Roux-en-Y gastric bypass (RYGB) surgery
in patients across multiple hospitals in China along with patients with type 2 diabetes mellitus (T2DM) and to
explore the potential preoperative predictors of diabetes outcomes after RYGB.

Methods: This was a retrospective cohort study in Chinese patients who underwent laparoscopic RYGB at five
Chinese hospitals from April 2009 to December 2014 and returned for follow-up approximately one-year post-

© The Author(s) 2021. Open Access This article is licensed under a Creative Commons Attribution 4.0
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