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. 2021 Apr;14(2):170-177.
doi: 10.1111/ases.12836. Epub 2020 Jul 21.

Current status of laparoscopic bariatric/metabolic surgery in Japan: The sixth nationwide survey by the Japan Consortium of Obesity and Metabolic Surgery

Masayuki Ohta  1 , Kazunori Kasama  2 , Akira Sasaki  3 , Takeshi Naitoh  4 , Yosuke Seki  2 , Susumu Inamine  5 , Takashi Oshiro  6 , Yuichiro Doki  7 , Yasuyuki Seto  8 , Hideki Hayashi  9 , Ichiro Uyama  10 , Shuji Takiguchi  11 , Kazuyuki Kojima  12 , Toshiyuki Mori  13 , Masafumi Inomata  14 , Yuko Kitagawa  15 , Seigo Kitano  16 ; Japan Consortium of Obesity and Metabolic Surgery (JCOMS)
Affiliations

Current status of laparoscopic bariatric/metabolic surgery in Japan: The sixth nationwide survey by the Japan Consortium of Obesity and Metabolic Surgery

Masayuki Ohta et al. Asian J Endosc Surg. 2021 Apr.

Abstract

Introduction: Laparoscopic bariatric procedures have been performed in Japan since 2000. Laparoscopic sleeve gastrectomy (LSG) has been fully covered by National Health Insurance since 2014, and it has been increasingly performed recently. The Japan Consortium of Obesity and Metabolic Surgery conducts a nationwide survey on laparoscopic bariatric/metabolic surgery every 2 years.

Methods: The survey was sent by post or email to 97 Japanese institutions in January 2020.

Results: From 2000 to 2019, a total of 3669 laparoscopic bariatric/metabolic procedures were performed in 64 institutions. The most popular procedure was LSG (n = 2866), followed by LSG with duodenojejunal bypass (LSG-DJB, n = 337) and laparoscopic Roux-en-Y gastric bypass (LRYGB, n = 280). Morbidity and reoperation rates were, respectively, 29.8% and 11.8% for LRYGB, 16.8% and 2.8% for LSG, and 13.6% and 6.6% for LSG-DJB. At 5 years after the procedures, the percentage of excess weight loss was 78% for LRYGB, 66% for LSG, and 80% for LSG-DJB.

Conclusion: This nationwide survey clearly showed that laparoscopic bariatric/metabolic surgery has been safely and effectively performed for 20 years in Japan.

Keywords: bariatric surgery; laparoscopic bariatric surgery; metabolic surgery.

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Figures

FIGURE 1
FIGURE 1
First year in which responding Japanese institutions performed laparoscopic bariatric/metabolic surgery
FIGURE 2
FIGURE 2
Number of laparoscopic bariatric/metabolic surgeries performed yearly. LAGB, laparoscopic adjustable gastric banding; LBPD, laparoscopic biliopancreatic diversion; LRYGB, laparoscopic Roux‐en‐Y gastric bypass; LSG, laparoscopic sleeve gastrectomy; LSG‐DJB, laparoscopic sleeve gastrectomy with duodenojejunal bypass
FIGURE 3
FIGURE 3
Percentage of excess weight loss after major bariatric/metabolic surgery by procedure. LAGB, laparoscopic adjustable gastric banding; LRYGB, laparoscopic Roux‐en‐Y gastric bypass; LSG, laparoscopic sleeve gastrectomy; LSG‐DJB, laparoscopic sleeve gastrectomy with duodenojejunal bypass
See this image and copyright information in PMC

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