Postoperative complications in cardiac surgery. Values are presented as odds ratio (OR) and 95% CI. Statistical analyses were performed using the Peto OR method. Statistical significance was accepted α less than 0.05. (A) Forest plot of postoperative pulmonary complications of cardiac surgery patients. Three trials excluded due to no events. (B) Forest plot of other (nonpulmonary) complications in cardiac surgery patients. Eight trials were excluded due to no events. TIVA = total IV anesthesia; VOL = volatile anesthetics; volatiles = volatile anesthetics. *Events are given as event per patient and overall number of events per patient. References refer to table 5 of the Supplemental Digital Content 1, https://links.lww.com/ALN/B270.