Table 2.
Procedural and angiographic characteristics*
| Variable | All patients (n = 120) | DCB-only group (n = 58) | Hybrid group (n = 62) | P value |
|---|---|---|---|---|
| Vascular access | 0.672 | |||
| Trans-radial | 115 (95.83%) | 55 (94.83%) | 60 (96.77%) | |
| Trans-femoral | 5 (4.17%) | 3 (5.17%) | 2 (3.23%) | |
| Treated vessel | 0.208 | |||
| Left anterior descending artery | 89 (74.17%) | 40 (68.97%) | 49 (79.03%) | |
| Left circumflex artery | 31 (25.83%) | 18 (31.03%) | 13 (20.97%) | |
| Feature of lesion | ||||
| Total occlusion | 9 (7.50%) | 2 (3.45%) | 7 (11.29%) | 0.165 |
| Diffuse vessel disease | 58 (48.33%) | 4 (6.90%) | 54 (87.10%) | < 0.001 |
| Calcified lesions | 9 (7.50%) | 6 (10.34%) | 3 (4.84%) | 0.312 |
| RVD | 3.43 ± 0.39 | 3.44 ± 0.38 | 3.43 ± 0.40 | 0.933 |
| Diameter stenosis (by QCA) | 0.70 ± 0.13 | 0.70 ± 0.11 | 0.70 ± 0.14 | 0.348 |
| Area stenosis (by QCA) | 0.89 ± 0.07 | 0.90 ± 0.06 | 0.89 ± 0.08 | 0.348 |
| Lesion length (mm) | 26.52 ± 14.48 | 15.47 ± 10.08 | 36.85 ± 9.46 | < 0.001 |
| SYNTAX score | 26.83 ± 5.38 | 23.47 ± 5.22 | 29.98 ± 3.18 | < 0.001 |
| Lesion preparation | 120 (100%) | 58 (100%) | 62 (100%) | - |
| POBA | 94 (78.33%) | 58 (100.00%) | 36 (58.06%) | < 0.001 |
| NSE scoring balloon | 27 (22.50%) | 11 (18.97%) | 16 (25.81%) | 0.370 |
| Cutting balloon | 81 (67.50%) | 43 (74.14%) | 38 (61.29%) | 0.133 |
| Non-compliant balloon | 22 (18.33%) | 11 (18.97%) | 11 (17.74%) | 0.863 |
| ROTA | 1 (0.83%) | 0 (0.00%) | 1 (1.61%) | 1.000 |
| Maximum pre-dilation balloon diameter (mm) | 3.10 ± 0.35 | 3.14 ± 0.36 | 3.06 ± 0.33 | 0.204 |
| Maximum pre-dilation balloon diameter/RVD ratio | 0.91 ± 0.07 | 0.92 ± 0.08 | 0.90 ± 0.07 | 0.125 |
| DCB use | ||||
| Number of DCBs used (per lesion) | 1.04 ± 0.24 | 1.09 ± 0.34 | 1.00 ± 0.00 | 0.036 |
| DCB diameter (mm) | 3.14 ± 0.40 | 3.21 ± 0.44 | 3.07 ± 0.35 | 0.120 |
| DCB diameter/RVD ratio | 0.92 ± 0.08 | 0.93 ± 0.08 | 0.90 ± 0.08 | 0.017 |
| Length of DCB (mm) | 20.00 (17.00-20.00) | 20.00 (17.00-26.00) | 17.00 (15.00-20.00) | 0.002 |
| Inflation pressure (bar) | 8.00 (8.00-8.00) | 8.00 (8.00-10.00) | 8.00 (8.00-8.00) | 0.129 |
| Coronary dissection after DCBA | < 0.001 | |||
| None | 55 (45.83%) | 35 (60.34%) | 20 (32.26%) | |
| Type A | 25 (20.83%) | 15 (25.86%) | 10 (16.13%) | |
| Type B | 16 (13.33%) | 5 (8.62%) | 11 (17.74%) | |
| Type C | 13 (10.83%) | 2 (3.45%) | 11 (17.74%) | |
| Type D | 10 (8.33%) | 1 (1.73%) | 9 (14.52%) | |
| Type E | 1 (0.83%) | 0 (0.00%) | 1 (1.61%) | |
| Type F | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | |
| Bailout stenting | 4 (3.33%) | 4 (6.90%) | 0 (0.00%) | 0.052 |
*
Plus-minus values are means ± SD. DCB denotes drug-coated balloon, NSE non-slip element, SYNTAX Synergy between Percutaneous Coronary Intervention with TAXUS and Cardiac Surgery, POBA plain old balloon angioplasty, ROTA rotational atherectomy, and RVD reference vessel diameter.