Does preoperative risk for delirium moderate the effects of postoperative pain and opiate use on postoperative delirium?

Objectives: To investigate whether preoperative risk for delirium moderates the effect of postoperative pain and opioids on the development of postoperative delirium.

Design: Prospective cohort study.

Setting: University medical center.

Factors associated with recovery from early postoperative delirium.

Delirium occurs in 14% to 56% of postoperative, hospitalized elderly persons, making it one of the most common postoperative complications for the older patient. The aim of this study was to determine factors associated with recovery of delirium from postoperative day one (POD 1) to postoperative day two (POD 2). The hypothesis was that those with less pain are more likely to recover from delirium by POD 2.

Brief report: preoperative frailty in older surgical patients is associated with early postoperative delirium.

We investigated whether preoperative frailty among older noncardiac surgical patients provides information about the development of postoperative delirium that is in addition to traditional geriatric risk factors. One-third of patients had a frailty score ≥3, which is considered "frail" in others' research. Twenty-five percent of patients developed postoperative delirium, which was measured using the confusion assessment method.