Lap band effective a decade on

Researchers followed up more than 3000 patients who underwent laparoscopic adjustable gastric banding between 1994 and 2011.

Of those, 714 had surgery at least 10 years ago and had maintained an average weight loss of 26kg.

There were similar results for 54 patients who were treated 15 years ago.

The study, published in the Annals of Surgery, found the average age of patients was 47 and 78% were women.

No deaths occurred as a result of the surgery or follow-up operations, which were needed in about half of patients. About one in 20 patients had the band removed during the study period.

Weight loss associated with gastric banding was similar to that achieved with more invasive gastric bypass procedures, the research found.

The lap-band operations were carried out by Monash University's Professor Paul O'Brien and Associate Professor Wendy Brown, president of the Obesity Surgery Society of Australia