Table 2.

Preoperative patient characteristics

Characeristics	Total (n=186)
Age (years), M±SD	51.42±8.93
Gender (male%)	70.97
Height (cm), M±SD	169.19±8.83
Weight (kg), M±SD	70.94±15.23
BMI (kg/m2), M±SD	24.68±4.48
History of smoking (%)	32.8
Acute onset (%)	78.49
Preoperative hypoxemia (%)	49.46
History of previous cardiac operation (%)	4.30
Preoperative LVEF, M±SD	55.54±7.50
Hypertension (%)	57.5
Diabetes mellitus (%)	5.38

BMI-body mass index, LVEF-left ventricular ejection fraction.

M±SD--mean±standard deviation.