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ASMBS/IFSO Guidelines on Indications for Metabolic and Bariatric Surgery - Video
Overview
Two of the world's leading authorities on bariatric and metabolic surgery have issued new evidence-based clinical guidelines for patients with type 2 diabetes beginning at a body mass index (BMI) of 30. The ASMBS/IFSO Guidelines on Indications for Metabolic and Bariatric Surgery - 2022, published online in the journals, Surgery for Obesity and Related Diseases (SOARD) and Obesity Surgery, are meant to replace a consensus statement developed by National Institutes of Health (NIH) more than 30 years ago that set standards most insurers and doctors still rely upon to make decisions about who should get weight-loss surgery, what kind they should get, and when they should get it.
In the 1991 consensus statement, bariatric surgery was confined to patients with a BMI of at least 40 or a BMI of 35 or more and at least one obesity-related condition such as hypertension or heart disease. There were no references to metabolic surgery for diabetes or references to the emerging laparoscopic techniques and procedures that would become mainstay and make weight-loss surgery as safe or safer than common operations including gallbladder surgery, appendectomy, and knee replacement. The statement also recommended against surgery in children and adolescents even with BMIs over 40 because it had not been sufficiently studied.
The ASMBS/IFSO Guidelines now recommend metabolic and bariatric surgery for individuals with a BMI of 35 or more "regardless of presence, absence, or severity of obesity-related conditions" and that it be considered for people with a BMI 30-34.9 and metabolic disease and in "appropriately selected children and adolescents."
But even without metabolic disease, the guidelines say weight-loss surgery should be considered starting at BMI 30 for people who do not achieve substantial or durable weight loss or obesity disease-related improvement using nonsurgical methods. It was also recommended that obesity definitions using standard BMI thresholds be adjusted by population and that Asian individuals consider weight-loss surgery beginning at BMI 27.5.
The new guidelines further state "metabolic and bariatric surgery is currently the most effective evidence-based treatment for obesity across all BMI classes" and that "studies with long-term follow up, published in the decades following the 1991 NIH Consensus Statement, have consistently demonstrated that metabolic and bariatric surgery produces superior weight loss outcomes compared with non-operative treatments."
It is also noted that multiple studies have shown significant improvement of metabolic disease and a decrease in overall mortality after surgery and that "older surgical operations have been replaced with safer and more effective operations." Two laparoscopic procedures, 6sleeve gastrectomy and 7Roux-en-Y Gastric Bypass (RYGB), now account for about 90% of all operations performed worldwide.
Reference:
Teresa LaMasters et al,2022 American Society for Metabolic and Bariatric Surgery (ASMBS) and International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO): Indications for Metabolic and Bariatric Surgery,Surgery for Obesity and Related Diseases
Speakers
Isra Zaman
B.Sc Life Sciences, M.Sc Biotechnology, B.Ed