Evaluation of Effectiveness of Euroscore 2 in Patients Undergoing Isolated Coronary Artery Bypass and Isolated Mitral Valve Replacement Surgery

Abstract

Objectives: In our study, we aimed to evaluate the results of our patients who underwent isolated coronary arterybypass graft (CABG) and isolated mitral valve replacement (MVR) surgeries under cardiopulmonary bypass (CPB) withone of the most common of these scoring systems, Euroscore 2.Methods: All patients who underwent consecutive isolated CABG and isolated MVR operations under CPB betweenMay 2012-March 2014 in Private Akay Hospital Cardiovascular Surgery Clinic were included in this study. In this study,intraoperative deaths and deaths within 30 days postoperatively were considered as mortality. The patients' demographic data, preoperative risk factors, preoperative medication, postoperative data, postoperative complications,laboratory findings and observed mortality and morbidity records were obtained retrospectively from patient files andhospital database.Results: As a result of ROC analysis; In patients in the CABG group, the agreement of Euroscore expected mortality rateswith the actual mortality rates was found to be 81.3%, and this was statistically significant. Sensitivity was found to be80%, and specificity was around 70%.In patients in the MVR group, the agreement of Euroscore expected mortality rates with the actual mortality rates wasfound to be 77.1%, and this was statistically significant. Sensitivity was found to be 75%, and specificity was around 62%.Conclusion: The result of our study showed that Euroscore 2, a preoperative risk assessment test, has an effective use inthe determination of the mortality rate that may occur surgically in isolated coronary bypass and isolated mitral valvesurgery, although it showed slight differences from the procedures applied.