Table 1.
Anamnestic and perioperative data
| Group A | Group B | p valuea | |
| Age (years) | 61.1 ± 6.5 | 62.5 ± 7.6 | 0.535 |
| Gender (male/female) | 13/7 | 14/6 | 0.736 |
| Body mass index (kg/m2) | 28.7 ± 3.9 | 28.9 ± 3.8 | 0.821 |
| Hypertension (%) | 47.2 | 52.8 | 0.292 |
| Diabetes mellitus (type I/type II/impaired glucose tolerance) (%) | 2/4/1 | 2/3/1 | 0.733 |
| Preoperative ejection fraction (%) | 55.6 ± 12.6 | 56.1 ± 9.7 | 0.906 |
| EuroScore (log) (%) | 2.5 ± 1.2 | 2.9 ± 1.4 | 0.405 |
| Amount of plasma substitute (ml) | 1626 ± 212 | 1606 ± 205 | 0.725 |
| Amount of crystalloids (ml) | 4172 ± 660 | 4107 ± 665 | 0.765 |
| Number of anastomoses (coronary artery bypass graft) | 3.5 ± 1.0 | 3.5 ± 0.9 | 0.991 |
| Aortic Xclamp (min) | 53 ± 13.8 | 59 ± 18.1 | 0.403 |
| Cardiac surgery on cardiopulmonary bypass duration (min) | 83 ± 23.7 | 90 ± 29.3 | 0.401 |
| Operation time (min) | 249 ± 64.5 | 258 ± 61.7 | 0.634 |
| Minimum rectal temperature (°C) | 34.8 ± 0.6 | 35.0 ± 0.5 | 0.274 |
| Preoperative packed cell volume | 0.40 ± 0.034 | 0.39 ± 0.040 | 0.723 |
| Postoperative 44 hours packed cell volume | 0.30 ± 0.035 | 0.30 ± 0.035 | 0.623 |
| Postoperative drainage (44 hours, ml) | 818 ± 286 | 588 ± 179 | 0.005 |
| Red blood cell transfusion (U) | 1.8 ± 1.3 | 1.6 ± 1.2 | 0.548 |
| Extubation time (hours) | 9.2 ± 4.1 | 9.3 ± 4.6 | 0.894 |
| Intensive care unit stay (hours) | 54 ± 23 | 47 ± 6 | 0.209 |
| Hospital stay (days) | 9.9 ± 2.4 | 8.9 ± 1.3 | 0.114 |
Data presented as the mean ± standard deviation. aChi-squared test or Student's t test.