The last time the National Institutes of Health (NIH) convened a consensus panel on bariatric surgery, many of our current medical students were still in diapers. At that time, fewer than 10 000 bariatric procedures were done annually and the most commonly performed bariatric operations were the vertical banded gastroplasty and open Roux-en-Y gastric bypass. The landscape has changed dramatically since then. Bariatric surgery has become one of the most commonly performed general surgery procedures and it is almost exclusively performed laparoscopically, with a good safety profile. Vertical banded gastroplasty has become obsolete and the most commonly performed bariatric procedure is laparoscopic sleeve gastrectomy, which was not even on the radar screen in 1991.
Finks JF, Dimick JB. An Updated National Institutes of Health Consensus Panel on Bariatric Surgery. JAMA Surg. 2014;149(12):1329-1330. doi:10.1001/jamasurg.2014.2443