Preoperative stratification for postoperative delirium: obstructive sleep apnea is a predictor, the STOP-BANG is not?

In the October 2018 issue of the Annals of Thoracic Surgery, Wang et al. published a study intended to test the hypothesis that STOP-BANG can contribute to predict the risk for postoperative delirium (POD) (1). In this paper, the authors report data from an a priori planned sub-analysis of the “PrEventing POstoperative Delirium” (PEPOD) trial: a randomized, double blind, placebo-controlled, single-center clinical trial on the effects of low-dose haloperidol in patients that present POD after major thoracic surgery (protocol NCT02213900).