The effect of diabetes mellitus on short term mortality and morbidity after isolated coronary artery bypass grafting surgery.
BACKGROUND
This study was conducted to determine whether Diabetes Mellitus (DM) is a predictor of short term mortality ; morbidity, or early readmission to hospital after Coronary Artery Bypass Graft (CABG).


METHODS
We analyzed a large cohort of 952 patients who had undergone isolated CABG. The preoperative, intera operative and postoperative risk factors as well as the complications and 30-day mortality rates were compared between the diabetics and non-diabetics. Among the 952 patients; 734 ones (77.1%) were in non-diabetic group and 218 (22.9%) were diabetics.


RESULTS
Having DM did not increase the risk of 30-day mortality. In addition, DM did not affect the major complications; arrhythmia, Myocardial Infarction(MI), infective complications, neurological complications, Pulmonary Embolism (PE) except renal complications that was higher in the diabetics (5.5% vs 1.4%; P<0.001, OR=4.2) However reoperation for bleeding was higher in non-diabetic patients (7.9% vs 4.6%; P=0.009, OR=1.7). Nevertheless ,no significant difference was observed between the two groups regarding mechanical ventilation time (hour), reintubation, length of ICU stay (day), length of hospital stay (day), and readmitting as postoperative variables.


CONCLUSIONS
Except for renal complications, DM was not associated with adverse outcomes in the patients undergoing isolated CABG.
Department of Cardio Surgery, Seyed Al-shohada Cardiovascular Center, Urmia University of Medical Sciences, Urmia, IR Iran.
Vahideh
V
Koochemeshki
Department of Cardio Surgery, Seyed Al-shohada Cardiovascular Center, Urmia University of Medical Sciences, Urmia, IR Iran.
Hamid Reza
HR
Salmanzadeh
Department of Biostatistics, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran.
Hojjat
H
Sayyadi
Department of Cardio Surgery, Seyed Al-shohada Cardiovascular Center, Urmia University of Medical Sciences, Urmia, IR Iran.
Morteza
M
Amestejani
Department of Cardio Surgery, Seyed Al-shohada Cardiovascular Center, Urmia University of Medical Sciences, Urmia, IR Iran.
Shahyad
S
Salehi Ardabili
Coronary Artery Bypass Graft; Diabetes; Morbidity; Mortality; Postoperative Complications