Distributions of anatomic and procedural data
| Variable | n (%) |
|---|---|
| Stenosis severity | |
| <50% | 4 (4) |
| 50%–70% | 38 (41) |
| >70% | 51 (55) |
| Stenosis <10 mm to bifurcation | 58 (62) |
| Presence of coarse calcification | 36 (39) |
| Premedication | |
| Glycopyrrolate | 65 (70) |
| Atropine | 8 (9) |
| Both | 3 (3) |
| Unknown | 17 (18) |
| Number of dilations | |
| 0–1 | 40 (43) |
| 2 | 35 (38) |
| 3–5 | 13 (14) |
| Unknown | 5 (5) |
| Residual stenosis after stenting | |
| 0%–10% | 53 (57) |
| 11%–20% | 19 (20) |
| 21%–30% | 15 (16) |
| 31%–40% | 6 (7) |
| Dilation percentage obtained* | |
| 10%–39% | 12 (13) |
| 40%–69% | 39 (42) |
| 70%–99% | 42 (45) |
* The formula is (stenosis severity percentage before carotid artery stent placement) − (residual stenosis percentage after carotid artery stent placement).