Characteristics of patients (n = 517) suffering from chronic refractory angina pectoris. Modified from TenVaarwerk et al.11
| CAD, coronary artery disease; CABG, coronary artery bypass graft surgery; IDDM, insulin dependent diabetes mellitus; LVEF, left ventricular ejection fraction; NYHA, New York Heart Association functional class; PTCA, percutaneous transluminal coronary angioplasty. | |
| Sex | 71% male |
| Age (years) | 63.9 (10.1) |
| Clinical presentation | |
| Duration of angina pectoris (years) | 8.1 (6.3) |
| NYHA class (mean) | 3.5 (0.7) |
| LVEF ⩽40% | 24% |
| Previous myocardial infarction | 66% |
| Three vessel disease | 68% |
| PTCA | 17% |
| CABG | 58% |
| Risk factors | |
| Family CAD | 61% |
| Hypertension | 39% |
| Hypercholesterolaemia | 28% |
| Smoking | 21% |
| IDDM | 14% |









