AUTHORS: Vassilis Athanassoglou et al
Reg Anesth Pain Med. 2022 Jan
INTRODUCTION The benzodiazepine midazolam is the main sedative used in the perioperative setting, resulting in anxiolysis and a reduction in anesthetic dose requirements. However, benzodiazepine use is also associated with potentially serious side effects including respiratory complications, and postoperative delirium (POD). A paucity of population level data exists on current perioperative midazolam use in adult orthopedic surgery and its effects on complications. Using a large national dataset, we aimed to determine perioperative midazolam utilization patterns and to analyze its effect on postoperative outcomes.
METHODS Patients who underwent total knee and hip arthroplasty (TKA/THA) were identified from Premier database (2006-2019). Primary exposure of interest was midazolam use on the day of surgery. Multivariable logistic regression models were run to determine if midazolam was associated with postoperative cardiac and pulmonary complications, delirium, and in-hospital falls.
RESULTS Among 2,848,897 patients, more than 75% received midazolam perioperatively. This was associated with increased adjusted odds for in-hospital falls in TKA/THA (OR 1.1, 95% CI 1.07 to 1.14)/(OR 1.1, 95% CI 1.06 to 1.16), while a decrease in the adjusted odds for cardiac complications in TKA/THA (OR 0.94, 95% CI 0.91 to 0.97)/(OR 0.93, 95% CI 0.89 to 0.97), and pulmonary complications (OR 0.92, 95% CI 0.87 to 0.96)