Predictive accuracy of cardiac risk indices for cardiovascular complications in patients undergoing noncardiac surgery

Abstract

Objective: To compare predictive accuracy of the American Society of Anesthesiologists (ASA) score and various cardiac risk indices for perioperative cardiovascular (CV) complications in patients undergoing noncardiac surgery. Materials and methods: We examined 243 patients (148 men and 95 women) aged 45 to 84 (66 [60-71] years) prior to their elective oncological and vascular surgery. We assessed patients using the ASA physical status classification system, Revised Cardiac Risk Index (RCRI), Gupta Myocardial Infarct or Cardiac Arrest (MICA) calculator, and Khoronenko cardiac risk index and analyzed perioperative CV complications. Results: We detected complications in 30 (12.3%) patients, with 3 (1.24%) of them having 2 concomitant CV complications. One death (0.41%) was registered. The MICA risk calculator had the highest predictive value (AUC ROC = 0.753). Risk scores over 0.95% discriminated patients with perioperative CV complications with sensitivity and specificity of 73.3% and 67.45%, respectively. Conclusions: We recommend using the MICA risk calculator to predict perioperative CV complications following elective oncological and vascular surgery.