TY - JOUR T1 - Evaluation of determinants of mortality in patients undergoing coronary artery bypass graft surgery in Urmia Seyed-al-Shohada Heart Center TT - بررسی عوامل تعیین‌کننده مرگ و میر بیماران به دنبال عمل جراحی بای پس عروق کرونر در بیمارستان سیدالشهداء ارومیه JF - RJMS JO - RJMS VL - 25 IS - 11 UR - http://rjms.iums.ac.ir/article-1-5337-en.html Y1 - 2019 SP - 23 EP - 33 KW - Coronary artery disease KW - Coronary artery bypass grafting KW - Mortality N2 - Background: Cardiovascular diseases are the leading cause of mortality in Iran and in the world. There is a controversy about risk factors and causes of mortality following Coronary Artery Bypass Graft (CABG) surgery and the purpose of this study is to determine these factors. Methods: In the retrospective case-control study, from March 2010 to July 2016 preoperative and intraoperative clinical data's of CABG patients were obtained and analyzed. Case group included 36 patients who died during the 30 days after operation and control group included 144 patients who had not died after surgery. Results: The mortality rate during this interval was 1.29% (36/2774). Old age, female sex, three vessel disease, chronic obstructive pulmonary disease, left main involvement, mitral valve regurgitation, emergency surgery, preoperative critical condition, low hemoglobin level, high white blood cell count, peripheral vascular disease, high aortic cross clamping time, pulmonary hypertension, high cardiopulmonary bypass time, intra-aortic balloon pump placement and use of inotrope and pacemaker had a significant relationship with mortality. Conclusion: Emergency surgery has a high mortality in the patients with preoperative critically ill conditions, especially in older women with multiple comorbidities. Preoperative precise assessment and correcting factors such as anemia, controlling inflammatory and pulmonary diseases, and reducing the duration of surgery is recommended to reduce mortality after surgery. M3 ER -