Table 3.
Comparison analysis of various intra-operative and post-operative variables among two groups
| Variable | Group A (n=56, 53.8%) | Group B (n=48, 46.2%) | Total (n=104) | P * |
|---|---|---|---|---|
| Cardio pulmonary bypass (CPB) time (min), mean (SD) | 219.23 (51.3) | 184.7 (60) | 203.29 (57.87) | 0.002 |
| Aortic cross clamp (ACC) time (min), mean (SD) | 122.29 (33.3) | 106.02 (35.9) | 114.78 (35.31) | 0.018 |
| Number of doses of cardioplegia, median (IQR) | 3 (3-4) | 1 (1-2) | 2 (2-3) | <0.001 |
| Priming Volume (ml), mean (SD) | 306.95 (55.78) | 319.52 (49.18) | 312.75 (52.96) | 0.229 |
| Post-op blood transfusion during first 24 hrs. (ml), median (IQR) | 30 (2.5-40) | 30 (14.75-58.75) | 30 (10-50) | 0.185 |
| Vasoactive inotropic score (VIS) first 24 hrs., median (IQR) | 10 (7.5-15) | 7.5 (5-12.5) | 9 (6.62-13.37) | 0.036 |
| Vasoactive inotropic score (VIS) next 24 hrs., median (IQR) | 9 (5-10) | 7.5 (5-10) | 7.5 (5-10) | 0.592 |
| Mechanical ventilation (hrs.), Median (IQR) | 91 (66.25-117) | 89 (68-129) | 90 (67.25-119.75) | 0.876 |
| Mean ICU stay (days), Median (IQR) | 9.5 (8-13.75) | 10.5 (7-14.75) | 10 (7-14) | 0.749 |
| Hospital stay (days), Median (IQR) | 14 (12-21) | 14 (10-18.75) | 14 (11-20) | 0.310 |
| Post-op Arrhythmias, n (%) | 9 (16.1) | 8 (16.7) | 17 (16.3) | 1 |
| Defibrillation, n (%) | 3 (5.4) | 0 | 3 (2.9) | 0.247 |
| Low cardiac output syndrome, n (%) | 23 (41.1) | 17 (35.4) | 40 (38.5) | 0.686 |
| Post-op creatinine (mg/dl), mean (SD) | 0.76 (0.4) | 0.85 (0.31) | 0.8 (0.36) | 0.176 |
| Post-op platelet count (L/c.mm), mean (SD) | 1.15 (0.59) | 1.33 (0.67) | 1.23 (0.63) | 0.134 |
| 30-day mortality, n (%) | 6 (10.7) | 4 (8.3) | 10 (9.6) | 0.749 |
Group A – Blood cardioplegia with St. Thomas solution, Group B – Del Nido cardioplegia solution. ICU – Intensive care Unit, IQR – Inter Quartile Range, SD – Standard Deviation. *Student’s t-test, Fischer’s exact t-test, Mann-Whitney test