6th IFSO Global Registry Report (2021)

ISBN 978-1-9160207-8-8

This is the Sixth Report of the International Federation for the Surgery of Obesity and Metabolic Disorders ( IFSO ) Global Registry, a collaboration with Dendrite Clinical Systems.

This year’s report contains information from 507,298 operations from 50 contributor countries. Data for this report has been submitted by national registries, regional registries and single-centres. When reviewing the graphs you will note that not every contributor country appears in every graph. This is because sometimes the data are unavailable or because there are fewer than 100 operation records submitted from that country, making the data prone to bias.

Throughout this report, we have sought to highlight data from national / regional registries that we believe capture at least 80% of the patients undergoing metabolic / bariatric surgery in their country. We have chosen to highlight their outcomes as these data are likely to be less prone to bias, and more likely to reflect the activity in their country than national registries with a lower rate of data acquisition and single centres.

The United Kingdom National Bariatric Surgery Registry 3rd Report (2020)

ISBN 978-1-9160207-2-6

Published by Dendrite Clinical Systems, in conjunction with the British Obesity and Metabolic Surgery Society (BOMSS), the third iteration of the National Bariatric Surgery Registry Report builds on the previous two and includes data on an additional 38,388 patients taking the overall total to 70,461 patients. The report demonstrates the safety and effectiveness of bariatric and metabolic surgery in the UK. The report uses data from the National Bariatric Surgery Registry (NBSR), a decade long research collaboration between BOMSS and Dendrite Clinical Systems. Key highlights of the publication include:

• Bariatric Surgery procedures produced excess weight loss at one year of 73.7% after One Anastomosis Gastric Bypasses and 71.3% after Roux-en-Y gastric bypass, which compares favourably against 61.5% with sleeve gastrectomy and 38.8% with gastric banding.
• The effectiveness of surgery also reveals that the prevalence of Type 2 diabetes mellitus was reduced from 30% to 14% in the first year after surgery.
• In-hospital mortality from bariatric and metabolic surgery was very low at 0.04%, which compares very favourably with internationally accepted figures.

Fifth IFSO Global Registry Report (2019)

ISBN 978-1-9160207-3-3

The Fifth IFSO Global Registry Report published by Dendrite Clinical Systems, under the auspices of the IFSO, reports data from more than 60 countries on over 833,000 operations including baseline obesity-related disease, operation types, operative outcomes and disease status after bariatric surgery. The report is the culmination of years of research and analyses from the IFSO Global Registry Project, which was established in January 2014 to demonstrate that it is possible to merge and analyse bariatric and metabolic surgical data from different countries and centres.

Kuwait National Bariatric Registry 1st Report (2019)

ISBN 978-0-9929942-9-7

The First Kuwait National Bariatric Registry Report 2019, published by Dendrite Clinical Systems and The State of Kuwait Ministry of Health, in conjunction with Bader Sultan & Brothers Company, is the first ever national report on bariatric and metabolic surgery in the Arabian Gulf region. This inaugural report, includes 3,302 bariatric surgery cases, contains data on baseline obesity-related disease, operation types, operative outcomes and disease status after bariatric surgery in Kuwait.

Fourth IFSO Global Bariatric Registry Report (2018)

ISBN 978-0-9929942-7-3

Dendrite Clinical Systems, under the auspices of the International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO), published the Fourth IFSO Global Registry Report includes data from more than 50 countries on over 394,000 operations including baseline obesity-related disease, operation types, operative outcomes and disease status after bariatric/metabolic surgery.

Third IFSO Global Registry Report (2017)

ISBN 978-0-9929942-4-2

The Third IFSO Global Registry Report includes data from more than 40 countries on over 196,000 operations including baseline obesity-related disease, operation types, operative outcomes and disease status after bariatric/metabolic surgery. The report demonstrates clear and important differences in bariatric practice between countries.

Second IFSO Global Registry Report (2016)

ISBN 978-0-9929942-1-1

The Second IFSO Global Registry Report (2016) published by Dendrite Clinical Systems, under the auspices of the IFSO, reports data on baseline obesity-related disease, operation types, operative outcomes and disease status after bariatric surgery in over 140,000 patients accumulated from 31 local and national databases and registries from all over the world.

First IFSO Global Registry Report (2014)

ISBN 978-0-9568154-9-1

The First IFSO Global Registry published by Dendrite Clinical Systems, under the auspices of the International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO), reports data on baseline obesity-related disease, operation types, operative outcomes and disease status after bariatric surgery in over 100,000 patients accumulated from 25 local and national databases and registries from all over the world.

The United Kingdom National Bariatric Surgery Registry 2nd Report (2014)

ISBN 978-0-9568154-8-4

The second National Bariatric Surgery Registry Report, published by Dendrite Clinical Systems and the British Obesity and Metabolic Surgery Society (BOMSS), includes over 18,000 patient records and records that the observed in-hospital mortality rate after primary surgery was 0.07% with a  surgical complication rate for primary operations of 2.9%. At the time of primary surgery the average BMI was 48.8 kg m-2, which means that patients were almost twice their ideal weight with 53.9% of men and 41.4% of women recording 4 or more obesity related diseases.

The United Kingdom National Bariatric Surgery Registry 1st Report (2011)

ISBN 1-903968-27-5

The first National Bariatric Surgery Registry Report, published by Dendrite Clinical Systems and the British Obesity and Metabolic Surgery Society (BOMSS), was the first comprehensive, prospective, nationwide analysis of outcomes from bariatric (obesity) surgery in the United Kingdom & Ireland. This landmark publication includes data from 84 surgeons from 86 hospitals on 8,710 bariatric surgery procedures and highlights at two years post-surgery 85.5% of patients with type 2 diabetes returned to a state of no indication of diabetes and no longer had to take diabetic medication.