Table 2 Peri-operative outcomes
Group I Diabetes + Metformin n = 41 (32%) | Group II Diabetes - Metformin n = 86 (68%) | P-value | |
|---|---|---|---|
Ventilation time (hours) ± SD | 8.0 ± 15.0 | 8.0 ± 9.2 | 0.998 |
Intensive care time (hours) ± SD | 42.8 ± 33.7 | 46.1 ± 45.4 | 0.692 |
Cardiopulmonary bypass time (minutes) ± SD | 103.5 ± 32.3 | 100.8 ± 38.9 | 0.709 |
Cross clamp time (minutes) ± SD | 83.2 ± 31.3 | 79.8 ± 32.3 | 0.590 |
Post-op cardiac index (mean) ± SD | 3.0 ± 0.5 | 2.9 ± 0.5 | 0.277 |
Lowest mixed venous oxygen saturation % (SVO2) | 55.8 ± 6.4 | 55.9 ± 8.6 | 0.950 |
Number of vasopressors >1 | 5 (12.2%) | 24 (27.9%) | 0.049 |
Intra-aortic balloon pump (%) | 2 (4.9%) | 8 (9.3%) | 0.498 |
Myocardial infarction (%) | 1 (2.4%) | 6 (7.0%) | 0.427 |
Low output syndrome (%) | 7 (17.1%) | 21 (24.4%) | 0.351 |
New post-op dialysis (%) | 0 (0%) | 1 (1.2%) | 1.000 |
Atrial Fibrillation (%) | 0 (0%) | 7 (8.1%) | 0.095 |
Pulmonary complications (%) | 7 (17.1%) | 19 (22.1%) | 0.640 |
Stroke/Transient ischemic attack (%) | 1 (2.4%) | 3 (3.5%) | 1.000 |
Surgical site infection (%) | 2 (4.9%) | 7 (8.1%) | 0.717 |
Death (%) | 0 (0%) | 2 (2.3%) | 1.000 |