Lesion characteristics in the two subgroups
| Characteristic | Dissection | p Value | |||
|---|---|---|---|---|---|
| Type C (group A) (n=45) | None/type A-B (group B) (n=211) | ||||
| Eccentricity | Yes | 31 (69%) | 125 (60%) | NS | |
| No | 15 (31%) | 85 (40%) | |||
| Length | < 10 mm | 23 (51%) | 95 (49%) | NS | |
| ⩾ 10 mm | 22 (49%) | 92 (47%) | |||
| Accessibility | No tortuosity | 43 (93%) | 180 (86%) | NS | |
| Moderate tortuosity | 3 (6%) | 28 (13%) | |||
| Excess tortuosity | 0 | 2 (1) | |||
| Angulation2-150 | None | 41 (89%) | 185 (88%) | NS | |
| Moderate | 5 (11%) | 25 (12%) | |||
| Severe bend point | 0 | 0 | |||
| Calcification | Little or none | 39 (85%) | 198 (94%) | 0.026 | |
| Moderate to heavy | 7 (15%) | 12 (6%) | |||
Values are mean (%).
↵2-150 None, < 45°; moderate, > 45° to 90°; severe, > 90°.