Rubin DS, Hughey R, Gerlach RM, et al. - This study was sought to present temporal trends and outcomes of preoperative cardiac stress testing from 2004 to 2017. Researchers performed a cross-sectional study of patients who had undergone elective total hip or total knee arthroplasty from 2004 to 2017. Joinpoint and generalized estimating equation regression were applied to perform trend analysis. The study population consisted of 801,396 elective total hip (27.9%; n = 246 168 of 801 396) and total knee (72.1%; 555 228 of 801 396) arthroplasty procedures, with a median age of 62 years (interquartile range, 57-70 years) and 58.1% women (n = 465 545 of 801 396). The data demonstrated that the frequency of preoperative stress testing declined annually from 2006 through 2017. There was no variation in cardiovascular outcomes between patients who did and did not undergo preoperative testing, among patients with at least 1 Revised Cardiac Risk Index condition.