Table I.
Baseline demographic and clinical parameters of the study population
| Variables | Standard hydration (n = 64) | Intensive hydration (n = 64) | p value |
|---|---|---|---|
| Age (years) | 61.8 (37–71) | 63.3 (49–71) | 0.094 |
| Gender: male [n (%)] | 44 (68.8) | 40 (62.5) | 0.457 |
| DM [n (%)] | 21 (31.8) | 17 (26.6) | 0.439 |
| Smoking [n (%)] | 27 (42.2) | 19 (29.7) | 0.141 |
| HT [n (%)] | 44 (68.8) | 48 (75.0) | 0.432 |
| CABG [n (%)] | 24 (37.5) | 28 (43.8) | 0.472 |
| Prior PCI [n (%)] | 21 (32.8) | 17 (26.6) | 0.439 |
| Dual [n (%)] | 27 (42.2) | 29 (45.3) | 0.722 |
| Antegrade [n (%)] | 54 (84.4) | 56 (87.5) | 0.611 |
| Retrograde [n (%)] | 10 (15.6) | 8 (12.5) | 0.616 |
| Infarct-related artery | |||
| LAD [n (%)] | 30 (46.9) | 31 (48.4) | |
| CX [n (%)] | 6 (9.4) | 6 (9.4) | 0.935 |
| RCA [n (%)] | 27 (42.2) | 25 (39.1) | |
| Greft [n (%)] | 1 (1.6) | 2 (3.1) | |
| Kilograms (kg) | 73.6 ± 8.0 | 75.9 ± 9.5 | 0.140 |
| LVEF (%) | 50.0 ± 6.0 | 51.6 ± 6.7 | 0.144 |
| SCr (0) (mg/dl) | 1.0 ± 0.1 | 1.0 ± 0.1 | 0.954 |
| SCr (1) (mg/dl) | 1.1 ± 0.2 | 1.1 ± 0.3 | 0.536 |
| SCr (2) (mg/dl) | 1.1 ± 0.2 | 1.1 ± 0.2 | 0.658 |
| GFR (ml/min) | 78.1 ± 18.4 | 77.1 ± 16.3 | 0.736 |
| BMI (kg/m2) | 26.0 ± 3.5 | 25.5 ± 3.7 | 0.516 |
| LDL (mg/dl) | 117.3 ± 21.2 | 119.5 ± 20.0 | 0.534 |
| HGB (g/dl) | 12.8 ± 1.2 | 12.8 ± 1.3 | 0.874 |
BMI: body mass index; CABG: coronary artery bypass grafting; SCr: serum creatinine; (0): before the procedure; (1): after the 12th h; (2): after the 48th h; GFR: glomerular filtration rate; Cx: circumflex artery; DM: diabetes mellitus; HGB: hemoglobin; HT: hypertension; LAD: left anterior descending artery; LDL: low-density lipoprotein; LVEF: left ventricular ejection fraction; PCI: percutaneous coronary intervention; RCA: right coronary artery