Etiological factors concerning the early complications that occur following coronary artery bypass graft surgery [Klinik glioma koroner arter baypas greftleme cerrahisi sonrasi erken donemde gelien komplikasyonlar ve iiikili etiyolojik faktorler]

Etiological Factors Concerning The Early Complications That Occur Following Coronary Artery Bypass Graft Sur- gery Introduction: Because coronary artery bypass graft (CABG) surgeries are becoming more common along with the advancements in anesthesia and surgery and changing patient profiles, greater number of complications are observed during the preoperative period. Due to these complications, mortality and morbidity rates are increasing and length of stay in the intensive care unit is extended. This study aimed to specify the etiological factors that cause the development of complications in CABG surgeries. Material and Methods: Files of400 patients who were operated between January 2011 and December 2012 were reviewed retrospectively. Information concerning the patients* ages, gender, weight, height, body mass index (BMI), ejection fraction, EuroSCORE (European system for cardiac operative risk evaluation score), presence of additional diseases, number of anastomoses carried out, the duration of cardiopidmonary bypass and aortic cross-clumping time, postoperative inotropic drug support, mechanical ventilation time, length of stay in the intensive care unit and in hospital, and the complications that occurred were recorded. The relationship between emerging complications and these variables was statistically analyzed. Results: The mean age of the patients was 61.4±9.4 years and 307 of them were males. Cardiac complication was the most frequently observed complication in patients tvith a rate of 29.8% which was followed by renal dysfunction (21%) and respiratory complications (12.3%). In 41.5% of the patients one complication while in 19% of them two and more complications developed. In multivariate logistic regression analysis, male gender, high BMls, high EuroSCOREs, use of inotropic agents, prolonged CPB and the number of coronary anastomoses carried out were independent risk factors for complications. Extubation, and mechanical ventilation times, length of stay in intensive care unit and hospital were significantly prolonged in patients who developed complications (p-0.05). Discussion and Conclusion: It would be possible to decrease the rates of complications by preparing patients for the operation thoroughly during the preoperative period, by providing optimal treatment, complying with the myocardial protective techniques and reducing operating times