Predictors of nonalcoholic steatohepatitis in patients undergoing bariatric surgery: when is liver biopsy indicated?

NASH is a frequent accompaniment of morbid obesity in patients undergoing bariatric surgery. Univariate and multivariate analyses of the clinical parameters studied could not identify strong predictors of biopsy-verified NASH. Therefore, intraoperative biopsy remains instrumental in diagnosing NASH and providing information for additional follow-up.