Japanese nationwide surveys on bariatric/metabolic procedures in 2021–2024

Masayuki Ohta; Yasuyuki Seto; Yuichi Endo; Takeshi Naitoh; Fumihiko Hatao; Toshie Shiraishi; Hiroshi Yamamoto; Kazunori Kasama; Akira Sasaki

doi:10.1007/s00595-025-03195-8

Japanese nationwide surveys on bariatric/metabolic procedures in 2021–2024

Masayuki Ohta^*
, Yasuyuki Seto
, Yuichi Endo
, Takeshi Naitoh
, Fumihiko Hatao
, Toshie Shiraishi
, Hiroshi Yamamoto
, Kazunori Kasama
, Akira Sasaki

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

The Japan Society for Treatment of Obesity has repeated nationwide surveys on bariatric/metabolic procedures, including endoluminal procedures. We report the changes from 2021 to 2024. An e-mail survey was sent to 108 Japanese institutions that performed the bariatric/metabolic procedures. The number of laparoscopic bariatric/metabolic surgeries was as follows: 2021 (n = 890), 2022 (n = 985), 2023 (n = 936), and 2024 (n = 915). The number of laparoscopic sleeve gastrectomy (LSG) with bypass procedures increased in 2024 according to insurance coverage. Additionally, the number of LSGs for body mass index (BMI) < 35 kg/m² drastically increased in 2024 according to changes in insurance coverage. The number of endoluminal bariatric/metabolic procedures was as follows: 2021 (n = 40), 2022 (n = 51), 2023 (n = 72), and 2024 (n = 80). Intragastric balloon placement and endoscopic sleeve gastroplasty were performed. The proportions reversed over four years. In Japan, the number of LSG with bypass procedures and LSGs for BMI < 35 kg/m² is expected to increase in the future.

Original language	English
Pages (from-to)	394-398
Number of pages	5
Journal	Surgery Today
Volume	56
Issue number	3
DOIs	https://doi.org/10.1007/s00595-025-03195-8
State	Published - Mar 2026
Externally published	Yes

Bibliographical note

Publisher Copyright:
© The Author(s) under exclusive licence to Springer Nature Singapore Pte Ltd. 2025.

Keywords

Bariatric/metabolic surgery
Endoluminal procedures
Japan

ASJC Scopus subject areas

Surgery

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10.1007/s00595-025-03195-8

Cite this

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title = "Japanese nationwide surveys on bariatric/metabolic procedures in 2021–2024",

abstract = "The Japan Society for Treatment of Obesity has repeated nationwide surveys on bariatric/metabolic procedures, including endoluminal procedures. We report the changes from 2021 to 2024. An e-mail survey was sent to 108 Japanese institutions that performed the bariatric/metabolic procedures. The number of laparoscopic bariatric/metabolic surgeries was as follows: 2021 (n = 890), 2022 (n = 985), 2023 (n = 936), and 2024 (n = 915). The number of laparoscopic sleeve gastrectomy (LSG) with bypass procedures increased in 2024 according to insurance coverage. Additionally, the number of LSGs for body mass index (BMI) < 35 kg/m2 drastically increased in 2024 according to changes in insurance coverage. The number of endoluminal bariatric/metabolic procedures was as follows: 2021 (n = 40), 2022 (n = 51), 2023 (n = 72), and 2024 (n = 80). Intragastric balloon placement and endoscopic sleeve gastroplasty were performed. The proportions reversed over four years. In Japan, the number of LSG with bypass procedures and LSGs for BMI < 35 kg/m2 is expected to increase in the future.",

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author = "Masayuki Ohta and Yasuyuki Seto and Yuichi Endo and Takeshi Naitoh and Fumihiko Hatao and Toshie Shiraishi and Hiroshi Yamamoto and Kazunori Kasama and Akira Sasaki",

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AU - Ohta, Masayuki

AU - Seto, Yasuyuki

AU - Endo, Yuichi

AU - Naitoh, Takeshi

AU - Hatao, Fumihiko

AU - Shiraishi, Toshie

AU - Yamamoto, Hiroshi

AU - Kasama, Kazunori

AU - Sasaki, Akira

N1 - Publisher Copyright: © The Author(s) under exclusive licence to Springer Nature Singapore Pte Ltd. 2025.

PY - 2026/3

Y1 - 2026/3

N2 - The Japan Society for Treatment of Obesity has repeated nationwide surveys on bariatric/metabolic procedures, including endoluminal procedures. We report the changes from 2021 to 2024. An e-mail survey was sent to 108 Japanese institutions that performed the bariatric/metabolic procedures. The number of laparoscopic bariatric/metabolic surgeries was as follows: 2021 (n = 890), 2022 (n = 985), 2023 (n = 936), and 2024 (n = 915). The number of laparoscopic sleeve gastrectomy (LSG) with bypass procedures increased in 2024 according to insurance coverage. Additionally, the number of LSGs for body mass index (BMI) < 35 kg/m2 drastically increased in 2024 according to changes in insurance coverage. The number of endoluminal bariatric/metabolic procedures was as follows: 2021 (n = 40), 2022 (n = 51), 2023 (n = 72), and 2024 (n = 80). Intragastric balloon placement and endoscopic sleeve gastroplasty were performed. The proportions reversed over four years. In Japan, the number of LSG with bypass procedures and LSGs for BMI < 35 kg/m2 is expected to increase in the future.

AB - The Japan Society for Treatment of Obesity has repeated nationwide surveys on bariatric/metabolic procedures, including endoluminal procedures. We report the changes from 2021 to 2024. An e-mail survey was sent to 108 Japanese institutions that performed the bariatric/metabolic procedures. The number of laparoscopic bariatric/metabolic surgeries was as follows: 2021 (n = 890), 2022 (n = 985), 2023 (n = 936), and 2024 (n = 915). The number of laparoscopic sleeve gastrectomy (LSG) with bypass procedures increased in 2024 according to insurance coverage. Additionally, the number of LSGs for body mass index (BMI) < 35 kg/m2 drastically increased in 2024 according to changes in insurance coverage. The number of endoluminal bariatric/metabolic procedures was as follows: 2021 (n = 40), 2022 (n = 51), 2023 (n = 72), and 2024 (n = 80). Intragastric balloon placement and endoscopic sleeve gastroplasty were performed. The proportions reversed over four years. In Japan, the number of LSG with bypass procedures and LSGs for BMI < 35 kg/m2 is expected to increase in the future.

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KW - Japan

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ER -

Japanese nationwide surveys on bariatric/metabolic procedures in 2021–2024

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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