Surgeon Explains Why Weight Loss Drugs Have Not Replaced Bariatric Surgery

Bariatric surgery remains vital for treating severe obesity even as popular weight-loss medications gain widespread use. Dr Ashish Gautam, a robotic and laparoscopic surgery director at Max Super Speciality Hospital in New Delhi, noted that obesity affects individuals differently and requires tailored care. While medicines help many people lose weight, patients with severe obesity and established health problems often need more substantial reduction to restore metabolic health and mobility.

India's Obesity Burden

India faces a rising tide of obesity and linked conditions. A 2023 ICMR study published in The Lancet Diabetes and Endocrinology estimated that 35 crore adults in India have abdominal obesity, while 25 crore have generalised obesity. Dr Gautam pointed out that severe obesity impacts blood sugar, blood pressure, sleep, liver health, and joint mobility.

Treatment Approaches

Patients seeking surgical help often have long histories of struggling with structured diets, exercise plans, and medications with varying success. Clinical evaluations look at BMI, waist size, diabetes, hypertension, sleep apnea, fatty liver disease, and joint issues. Asian populations can face metabolic complications at lower BMI levels, leading Indian guidelines to use different risk thresholds. Procedures like sleeve gastrectomy and gastric bypass restrict stomach capacity and alter hunger hormones, often improving blood sugar even before major weight loss occurs.

Context

Weight-loss drugs like semaglutide have expanded medical options and brought obesity care into the mainstream, but patient responses vary widely. Long-term management is essential because obesity is a chronic condition, and different stages of the illness require a mix of lifestyle changes, medication, or surgery.