Pulmonary artery blood temperature at admission to the intensive care unit is predictive of outcome after on‐pump coronary artery bypass surgery

Objective—To evaluate whether pulmonary artery blood (PA) temperature on admission to the intensive care unit (ICU) is predictive of postoperative outcome after isolated on‐pump coronary artery bypass grafting (CABG). Design—A retrospective study on 1639 patients who underwent isolated on‐pump CABG in whom PA temperature at admission to the ICU was available for review. Results—Thirty‐three patients (2.0%) died during the in‐hospital stay and 87 patients (5.3%) developed low cardiac output syndrome. PA temperature at admission to the ICU was significantly associated with an increased risk of overall postoperative death (p = 0.002), cardiac death (p = 0.03), and low cardiac output syndrome (p < 0.0001), and was significantly correlated with prolonged length of ICU stay (p < 0.0001) and postoperative bleeding (p = 0.001). Patients with high PA temperature had significantly more severe comorbidities, and longer aortic cross‐clamping and cardiopulmonary bypass time. The receiver operating characteristic curve...