A 52-year-old woman weighing 200 kg, who underwent a six-hour lifesaving bariatric surgery at a hospital here has lost 30 kg and is currently recuperating well, the hospital said on Wednesday.

It took almost five hours for a team of six doctors to complete the challenging operation and doctors from pulmonology, cardiology, endocrinology and anaesthesia ensured that the surgery went off smoothly in December last year.