NBSR outcomes data demonstrates low mortality rate of metabolic and bariatric surgery in England

Publication of the latest data from the National Bariatric Surgical Registry (NBSR) has demonstrated that in-hospital survival from metabolic and bariatric surgery (MBS) is at least as good, if not better, than many common laparoscopic gastrointestinal procedures.

Omar Khan

Surgical data from metabolic and bariatric surgery (MBS) in England revealed an in-hospital mortality rate of 0.035% with three recorded in-hospital deaths from 8,454 procedures, between March 2023 and April 2025. In addition, the Registry has published individual consultant data along with revised guidance of minimum recommended volume of activities for individual surgeons and hospitals. 

“The publication of surgeon-level data highlights the safety of bariatric surgery and gives patients and other members of the public the opportunity to review the work of individual surgeons,” said Professor Omar Khan, Consultant Surgeon and Chair of the NBSR. “For the first time these Consultant Outcomes Report has procedures from both NHS and private practice. This is important as BMOSS is dedicated to capturing and publishing as much data as possible providing transparency to patients and the general public.”

“The publication of these outcomes again demonstrates the powerful impact clinical registries can have on improving best practice for all patients,” said Dr Peter Walton, Managing Director of Dendrite Clinical Systems. “I would like to thank all the contributing surgeons for taking part in the invaluable project, demonstrating that MBS are safe and effective procedures that helps to treat people living with obesity and regain their health.”

The data is available on the dedicated website - http://nbsr.e-dendrite.com/