Evaluation of factors influencing ICU stay time after coronary artery bypass

ABSTRACT

Coronary artery bypass is one of most frequently performed operations which imposes considerable cost in the society. These are different sorts of peri and post operation factors influencing the stay time and expenses. The aim of this study is to evaluate these factors influencing stay time. It is a cross-sectional study which evaluates influencing factors on ICU stay time in 346 patients during 1381-1384. These patients were divided into two groups according to stay time time >/= 3 days. Patients' ages were in the range of 36-77 years old and the mean of ICU stay time was 4.02 +/- 1.44. Among preoperative factors, weight [P=0.03] and age [P=0.03] has significant differences. Women and type II diabetic patients had more stay time. Among clinical findings, arterial involvement has significant P-value [P=0.03]. Among labratory findings, following factors have significant differences between two groups. BUN [P=0.001], Hct [P=0.04], WBC [P=0.04], units of blood transmission in operation room [P=0.001] and ICU [P=0.02], number of recieved inotrops in operation room [P=0.001] and ICU [P=0.001], aortic clamp time [P=0.09], intubation time [P=0.001] and artificial ventilation time [P=0.001]. This study demonstrates that comprehensive pre, peri and post evaluation helps us not only to have a better understanding of ICU and hospital stay time but also to have the capability to decrease the stay time by implementation of appropriate change in patients' conditions