Table 4.
Intraoperative data and outcome of patients (Data are presented as mean±SD, Number, %)
| Variable | Group M (n=61) | Group C (n=61) | P |
|---|---|---|---|
| CABG | 33 | 29 | 0.587 |
| Valvular surgery | 13 | 18 | 0.405 |
| CABG and Valvular surgery | 15 | 14 | 0.727 |
| CPB time (minute) | 112.46±22.87 | 108.30±24.28 | 0.332 |
| Cross clamping time (minute) | 90.75±20.46 | 88.37±17.10 | 0.487 |
| Dopamine (µg/kg/min) | 6.64±1.28 | 7.15±1.36 | 0.035* |
| Epinephrine (µg/kg/min) | 0.04±0.02 | 0.05±0.03 | 0.032* |
| Norepinephrine (µg/kg/min) | 0.05±0.02 | 0.06±0.03 | 0.030* |
| Nitroglycerine (µg/kg/min) | 0.55±0.43 | 0.75±0.54 | 0.025* |
| Intra-aortic balloon pump | 4 | 7 | 0.529 |
| Pacing | 15 | 11 | 0.507 |
| Transfused P-RBC | |||
| Number of patients | 55 | 52 | 0.582 |
| Number of units | 2.57±0.60 | 2.43±0.51 | 0.167 |
| Hematocrit (%) | 35.96±2.55 | 36.57±2.46 | 0.181 |
| Blood loss (ml) | |||
| Intraoperative (ml) | 1550.30±243.78 | 1497.41±226.20 | 0.216 |
| Postoperative (ml/24 hr) | 552.10±134.20 | 536.65±126.30 | 0.513 |
| Intraoperative fluids | |||
| Crystalloids (ml) | |||
| Ringer | 1560.89±327.14 | 1495.70±318.35 | 0.266 |
| Saline 0.9% | 1450.30±290.20 | 1470.10±310.60 | 0.716 |
| Hesteril 6% | 525.20±112.36 | 550.50±119.10 | 0.229 |
| Postoperative fluids 24 hour | |||
| Crystalloids (ml) | |||
| Ringer | 2240.38±520.15 | 2184.75±480.95 | 0.540 |
| Saline 0.9% | 2160.30±450.10 | 2210.40±415.48 | 0.524 |
| Hesteril 6% | 750.17±230.50 | 810.30±260.40 | 0.179 |
| Intraoperative urine output (ml) | 2108.60±275.40 | 1780.30±220.45 | 0.001* |
| Hemofiltration [Fluid removal (L)] | 870.64±157.20 | 945.30±179.66 | 0.016 |
| Atrial fibrillation | 12 | 23 | 0.044* |
| Ventricular extrasystole | 6 | 16 | 0.032* |
| Neurological | - | - | - |
| pulmonary complications | - | 45 | - |
| ICU length of stay (days) | 4.65±1.53 | 5.27±1.58 | 0.029* |
| Hospital length of stay (days) | 10.00±2.30 | 10.96±2.80 | 0.040* |
| Mortality | 2 | 3 | 0.647 |
*P<0.05 significant comparison between the two groups.CPB: Cardiopulmonary bypass; P-RBC: Packed- red blood cells; ICU: Intensive care unit.Group M: Magnesium sulphate group; Group C: Control group T0: Baseline reading; T1: 15 minutes after induction; T2: before cardiopulmonary bypass; T3:30 minutes after cardiopulmonary bypass; T4: on ICU admission; T5: 6th hour after ICU admission; T6: 12th hour after ICU admission; T7: 24th hour after ICU admission.