Characteristics of patients with (CR+) and without contractile reserve (CR−)
| Characteristic | CR+ (n = 64) | CR− (n = 64) | p Value |
|---|---|---|---|
| Data are mean (SD) or number (%). | |||
| CABG, coronary artery bypass graft; CCS, Canadian Cardiovascular Society; LVEF, left ventricular ejection fraction; MI, myocardial infarction; NS, not significant; NYHA, New York Heart Association; PTCA, percutaneous transluminal coronary angioplasty. | |||
| Men | 51 (80%) | 54 (84%) | NS |
| Age (years) | 62 (9) | 62 (10) | NS |
| CCS class | 2.1 (1.1) | 2.4 (0.9) | 0.03 |
| NYHA class | 2.7 (1.0) | 3.1 (0.8) | NS |
| History of MI | 57 (89%) | 61 (95%) | NS |
| Diabetes | 10 (15%) | 5 (8%) | NS |
| Smoking | 32 (50%) | 44 (69%) | 0.05 |
| Hypertension | 39 (61%) | 53 (83%) | <0.05 |
| Hypercholesterolaemia | 25 (39%) | 31 (48%) | <0.001 |
| Number of stenotic vessels | 2.5 (0.7) | 2.4 (0.7) | NS |
| Previous CABG | 15 (23%) | 6 (9%) | NS |
| LVEF (%) | 30 (8) | 31 (9) | NS |
| Aneurysmectomy | 5 (8%) | 6 (9%) | NS |
| PTCA | 15 (23%) | 10 (17%) | NS |
| On-pump CABG | 49 (77%) | 54 (83%) | NS |
| Complete revascularisation | 63 (98%) | 62 (97%) | NS |