Table 1.
Baseline Characteristics
| Cases (n = 52) | Controls (n = 50) | P Value | |
|---|---|---|---|
| Age (yrs) | 46.86 ± 10.79 | 50.08 ± 9.1 | 0.1 |
| DM (no., %) | 15 (28.8%) | 24 (48%) | 0.074 |
| HTN (no., %) | 17 (32.7%) | 19 (38%) | 0.72 |
| Smoking (no., %) | 20 (38.5%) | 14 (28%) | 0.36 |
| LVEF (%) | 39.41 ± 11.64 | 45.22 ± 9.77 | 0.008 |
| Infarct location (no., %) | |||
| Anterior | 35 (67.3%) | 27 (54%) | 0.24 |
| Inferior | 16 (30.8%) | 22 (44%) | 0.23 |
| Lateral | 0 (0%) | 1 (2%) | 0.49 |
| Posterior | 1 (1.9%) | 0 (0%) | 1 |
| Coronary lesiona (no., %) | |||
| Left main artery disease | 3 (5.7%) | 0 (0%) | 0.24 |
| Single vessel disease | 23 (44.2%) | 19 (38%) | 0.66 |
| Multivessel disease | 16 (30.8%) | 21 (42%) | 0.33 |
| Revascularization (no., %) | |||
| Thrombolysis | 9 (17.3%) | 9 (18%) | 0.86 |
| PCI | 35 (67.3%) | 37 (74%) | 0.6 |
| CABG | 7 (13.5%) | 4 (8%) | 0.52 |
| Conservative | 1 (1.9%) | 0 (0%) | 1 |
| QRS duration (ms) | 94.19 ± 14 | 90.28 ± 13.48 | 0.15 |
| QTc (ms) | 428.17 ± 40.5 | 419.98 ± 32.46 | 0.26 |
| QTd (ms) | 29.57 ± 22.29 | 27.34 ± 19.73 | 0.72 |
| (median 23.5) | (median 20) | ||
| Deaths (no., %) | 5 (9.6%) | 0 (0%) | 0.056 |
DM = diabetes mellitus; HTN = hypertension; LVEF = left ventricular ejection fraction; PCI = percutaneous coronary intervention; CABG = coronary artery bypass grafting; QTc = corrected QT interval; QTd = QT dispersion.
a
Remaining patients refused angiography.