IFSO Worldwide Survey 2016: Primary, Endoluminal, and Revisional Procedures


Background and Aim

The International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO), being a Federation of 62 national societies, is the ideal network to monitor the number and type of procedures at a global level. The IFSO survey, enriched with a special section on revisional procedures, aims to report the number and types of bariatric procedures performed worldwide in 2016 and analyzes the surgical trends from 2008 to 2016.


The 2016 IFSO Survey form was emailed to all IFSO societies. Each Society was requested to indicate the number and type of bariatric procedures performed in the country. Trend analyses from 2008 to 2016 were also performed.


The total number of bariatric/metabolic procedures performed in 2016 was 685,874; 634,897 (92.6%) of which were primary and 50,977 were revisional (7.4%). Among the primary interventions, 609,897 (96%) were surgical and 25,359 (4%) were endoluminal. The most performed primary surgical bariatric/metabolic procedure was sleeve gastrectomy (SG) (N = 340,550; 53.6%), followed by Roux-en-Y gastric bypass (N = 191,326; 30.1%), and one-anastomosis gastric bypass (N = 30,563; 4.8%).


In 2016, there was an increase in the total number both of surgical and endoluminal bariatric/metabolic procedures. Revisional procedures represent about 7% of the total bariatric interventions. SG remains the most performed surgical procedure in the world.

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We thank the Presidents of the responding IFSO national societies and Manuela Mazzarella and Stefanie D’arco of IFSO Secretariat for their support.

IFSO Nation President

Argentina Mario Antozzi

Australia–New Zeland Ahmad Aly

Austria Gerhard Prager

Azerbaijan Taryel Omerov

Belgium Jean Saey

Bolivia Sergio Aparicio

Brazil Caetano Marchesini

Canada* Laurent Biertho

Chile Ricardo Funke

China Cunchuan Wuang

Colombia Cesar Guevara

Costa Rica Jorge Esmeral

Czech Republic Martin Fried

Dominican Republic Luis Betances

Ecuador Max Torres

Egypt Alaa Abbas

Finland Jyrki Kössi

France Jerome Dargent

Germany Dieter Birk

Greece Dimitrios Zacharoulis

Guatemala Fernando Montufar

Honduras Ricardo Pena

Hong Kong Simon Wong

Iceland Audun Sigurdsson

India Rajesh Khullar

Iran Kalaji Alireza

Israel Nasser Sakran

Italy Luigi Piazza

Japan Hisahiro Matsubara

Jordan Ahmad Sami Salem

Kazakhstan Oral Ospanov

Korea Joo-Ho Lee

Kuwait Mohammed Al Jarallah

Lebanon Jean Biagini

Lithuania Almantas Maleckas

Malaysia Hisham Mura Nor

México Nelson Rodriguez Huerta

Netherlands Bart van Wagensveld

Norway Marius Svanevik

Perú Ramiro Carbajal Nicho

Poland Mariusz Wylezol

Portugal Jorge Santos

Romania Niculae Iordache

Russian Federation Yury Yashkov

Saudi Arabia Khalid Mirza Gari

Singapore Asim Shabbir

Slovenia Tadeja Pintar

South Africa Tess van der Merwe

Spain Juan Carlos Ruiz da Adana

Sweden Torsten Olbers

Switzerland Renward S. Hauser

Taiwan Wei-Jei Lee

Turkey Mustafa Taskin

Ukraine Andriy Lavryk

UAE Ali Khammas

UK Roger Ackroyd

USA Stacy Brethauer

Venezuela Salvador Navarrete

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Corresponding author

Correspondence to Luigi Angrisani.

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The authors declare that they have no conflicts of interest.

Statement of Informed Consent

This is a survey in which we do not directly involve human subjects; it is limited to an analysis of bariatric procedures performed around the world.

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Angrisani, L., Santonicola, A., Iovino, P. et al. IFSO Worldwide Survey 2016: Primary, Endoluminal, and Revisional Procedures. OBES SURG 28, 3783–3794 (2018). https://doi.org/10.1007/s11695-018-3450-2

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  • Bariatric metabolic surgery
  • Worldwide survey
  • Endoluminal and revisional procedures