Baseline characteristics in the study cohort of 100 patients who had complete serial angiograms and 17 patients who did not have either three or six year follow up angiography
| Complete series | No follow up | |
|---|---|---|
| Data are mean (SD), mean (range), or number (%). | ||
| AHA, American Heart Association; ACC, American College of Cardiology; DS, percentage diameter stenosis; LAD, left anterior descending; LCx, left circumflex; MLD, minimum lumen diameter; RD, reference diameter. | ||
| Patient characteristics | ||
| Number of patients | 100 | 17 |
| Men | 81 (81%) | 16 (94%) |
| Age (years) | 58.6 (38–69) | 59.1(39–69) |
| Extent of coronary artery diseases | ||
| 1 vessel disease | 17 (17%) | 3 (18%) |
| 2 vessel disease | 83 (83%) | 14 (82%) |
| Previous myocardial infarction | 56 (56%) | 11 (65%) |
| Diabetes mellitus | 18 (18%) | 4 (24%) |
| Hypertension | 50 (50%) | 10 (59%) |
| Hypercholesterolaemia | 53 (53%) | 10 (59%) |
| Smoking | 54 (54%) | 11 (65%) |
| Medication | ||
| Long acting nitrate | 93 (93%) | 15 (88%) |
| Calcium channel blocker | 71 (71%) | 10 (59%) |
| β Blocker | 27 (27%) | 4 (24%) |
| Pravastatin | 68 (68%) | 14 (82%) |
| Total cholesterol (mmol/l) | 5.88 (1.36) | 6.15 (1.83) |
| Low density lipoproteins (mmol/l) | 3.88 (1.29) | 4.50 (1.90) |
| High density lipoproteins (mmol/l) | 1.23 (0.32) | 1.06 (0.26) |
| Triglycerides (mmol/l) | 1.69 (1.06) | 1.94 (1.58) |
| Angiographic and procedural characteristics | ||
| Number of lesions | 198 | 28 |
| Lesion location | ||
| LAD | 99 (50%) | 11 (39%) |
| Right | 52 (26%) | 9 (32%) |
| LCx | 46 (23%) | 8 (29%) |
| Left main | 1 (1%) | 0 (0%) |
| AHA/ACC type | ||
| B1/B2C | 79/119 (40%/60%) | 16/12 (57%/43%) |
| Calcified | 6 (3%) | 1 (4%) |
| Before angioplasty | ||
| Lesion length (mm) | 13.9 (7.4) | 13.6 (3.2) |
| RD (mm) | 2.62 (0.75) | 2.74 (0.54) |
| MLD (mm) | 0.76 (0.54) | 0.68 (0.47) |
| DS (%) | 71.0 (18.5) | 75.2 (15.3) |
| Immediately after angioplasty | ||
| RD (mm) | 2.67 (0.71) | 2.82 (0.62) |
| MLD (mm) | 2.00 (0.68) | 2.14 (0.46) |
| DS (%) | 24.9 (15.9) | 24.0 (13.0) |
| Balloon diameter (mm) | 2.9 (0.4) | 3.0 (0.5) |
| Balloon to artery ratio | 1.1 (0.3) | 1.1 (0.2) |
| Inflation pressure (atm) | 7.3 (2.6) | 8.3 (2.4) |
| Inflation time (s) | 131 (81) | 157 (61) |
| Dissection | 30 (15%) | 4 (14%) |