Patient characteristics and clinical data
| Sufficient collaterals | Insufficient collaterals | p Value | |
| n | 17 | 37 | NS |
| Age (years) | 66 (9) | 58 (10) | 0.01 |
| Men | 13 | 31 | NS |
| Women | 4 | 6 | |
| Smoking | 4 | 11 | NS |
| Systemic hypertension | 13 | 14 | 0.01 |
| Obesity | 2 | 4 | NS |
| Dyslipidaemia | 11 | 20 | NS |
| Family history | 4 | 16 | NS |
| Diabetes mellitus | 2 | 5 | NS |
| CCS class | 1.9 (1.1) | 1.8 (1.3) | NS |
| Previous infarction1-150 | 3 | 7 | NS |
| Drug treatment | |||
| Calcium antagonist | 2 | 10 | NS |
| ACE inhibitor | 7 | 6 | 0.05 |
| β Blocker | 9 | 22 | NS |
| Nitrates | 5 | 11 | NS |
| Lipid lowering agents | 5 | 16 | NS |
| Aspirin | 14 | 35 | NS |
| Diuretics | 3 | 2 | NS |
Values are mean (SD) or n.
↵1-150 In territory not involved in current angioplasty procedure.
ACE, angiotensin converting enzyme; CCS, Canadian Cardiovascular Society class of angina pectoris; sufficient collaterals, no intracoronary ECG ST segment shift (> 1 mm) during percutaneous transluminal coronary angioplasty.