OBJECTIVE: To assess the relationship between body temperature and cardiac morbidity during the perioperative period. DESIGN: Randomized controlled trial comparing routine thermal care (hypothermic group) to additional supplemental warming care (normothermic group). SETTING:Operating rooms and surgical intensive care unit at an academic medical center. SUBJECTS:Three hundred patients undergoing abdominal, thoracic, or vascular surgical procedures who either had documented coronary artery disease or were at high risk for coronary disease. OUTCOME MEASURE: The relative risk of a morbid cardiac event (unstable angina/ischemia, cardiac arrest, or myocardial infarction) according to thermal treatment. Cardiac outcomes were assessed in a double-blind fashion. RESULTS:Mean core temperature after surgery was lower in the hypothermic group (35.4+/-0.1 degrees C) than in the normothermic group (36.7+/-0.1 degrees C) (P<.001) and remained lower during the early postoperative period. Perioperative morbid cardiac events occurred less frequently in the normothermic group than in the hypothermic group (1.4% vs 6.3%; P=.02). Hypothermia was an independent predictor of morbid cardiac events by multivariate analysis (relative risk, 2.2; 95% confidence interval, 1.1-4.7; P=.04), indicating a 55% reduction in risk when normothermia was maintained. Postoperative ventricular tachycardia also occurred less frequently in the normothermic group than in the hypothermic group (2.4% vs 7.9%; P=.04). CONCLUSION: In patients with cardiac risk factors who are undergoing noncardiac surgery, the perioperative maintenance of normothermia is associated with a reduced incidence of morbid cardiac events and ventricular tachycardia.
RCT Entities:
OBJECTIVE: To assess the relationship between body temperature and cardiac morbidity during the perioperative period. DESIGN: Randomized controlled trial comparing routine thermal care (hypothermic group) to additional supplemental warming care (normothermic group). SETTING: Operating rooms and surgical intensive care unit at an academic medical center. SUBJECTS: Three hundred patients undergoing abdominal, thoracic, or vascular surgical procedures who either had documented coronary artery disease or were at high risk for coronary disease. OUTCOME MEASURE: The relative risk of a morbid cardiac event (unstable angina/ischemia, cardiac arrest, or myocardial infarction) according to thermal treatment. Cardiac outcomes were assessed in a double-blind fashion. RESULTS: Mean core temperature after surgery was lower in the hypothermic group (35.4+/-0.1 degrees C) than in the normothermic group (36.7+/-0.1 degrees C) (P<.001) and remained lower during the early postoperative period. Perioperative morbid cardiac events occurred less frequently in the normothermic group than in the hypothermic group (1.4% vs 6.3%; P=.02). Hypothermia was an independent predictor of morbid cardiac events by multivariate analysis (relative risk, 2.2; 95% confidence interval, 1.1-4.7; P=.04), indicating a 55% reduction in risk when normothermia was maintained. Postoperative ventricular tachycardia also occurred less frequently in the normothermic group than in the hypothermic group (2.4% vs 7.9%; P=.04). CONCLUSION: In patients with cardiac risk factors who are undergoing noncardiac surgery, the perioperative maintenance of normothermia is associated with a reduced incidence of morbid cardiac events and ventricular tachycardia.
Authors: Nicholas M Mohr; Brian M Fuller; Lee P Skrupky; Hawnwan Moy; Robert Alunday; Scott T Micek; Richard E Fagley Journal: Ann Pharmacother Date: 2011-09-20 Impact factor: 3.154
Authors: Akiko Taguchi; Jebadurai Ratnaraj; Barbara Kabon; Neeru Sharma; Rainer Lenhardt; Daniel I Sessler; Andrea Kurz Journal: Anesthesiology Date: 2004-05 Impact factor: 7.892
Authors: Paul Jeffrey Young; Manoj Saxena; Richard Beasley; Rinaldo Bellomo; Michael Bailey; David Pilcher; Simon Finfer; David Harrison; John Myburgh; Kathryn Rowan Journal: Intensive Care Med Date: 2012-01-31 Impact factor: 17.440