Research Article
Efficacy of Low-Pressure Inflation of Oversized Drug-Coated Balloon for Coronary Artery Disease
Table 2
Procedural and follow-up quantitative angiographic characteristics in the crude cohorts.
| | LP group (n = 191) | SP group (n = 135) | value |
| Number of patients | 154 | 119 | |
| Procedural devices | | | | DCA (%) | 9 (4.7) | 4 (3.0) | 0.57 | PTCRA (%) | 86 (45.0) | 38 (28.1) | 0.003 | B/A ratio | 0.76 ± 0.16 | 0.71 ± 0.17 | 0.11 |
| Drug-coated balloon | | | | DCB/A ratio | 1.14 ± 0.22 | 1.03 ± 0.16 | <0.001 | Inflation pressure (atm) | 2.4 ± 1.2 | 7.1 ± 2.2 | <0.001 | Inflation time (sec) | 72.2 ± 39.8 | 64.8 ± 35.2 | 0.083 |
| At PCI | | | | Reference diameter (mm) | 2.38 ± 0.67 | 2.57 ± 0.66 | 0.011 | Lesion length (mm) | 11.73 ± 6.87 | 10.54 ± 5.69 | 0.10 |
| MLD (mm) | | | | Preintervention (mm) | 0.89 ± 0.45 | 0.94 ± 0.48 | 0.38 | Postintervention (mm) | 1.74 ± 0.57 | 1.88 ± 0.49 | 0.027 |
| Percent diameter stenosis | | | | Preintervention (%) | 62.9 ± 14.5 | 63.6 ± 15.1 | 0.69 | Postintervention (%) | 26.2 ± 11.9 | 24.1 ± 11.3 | 0.11 |
| Acute gain (mm) | 0.85 ± 0.47 | 0.94 ± 0.47 | 0.091 |
| Type of dissection (NHLBI) | | | 0.61 | A | 22 (11.5) | 17 (12.6) | | B | 23 (12.0) | 17 (12.6) | | C | 10 (5.2) | 3 (2.2) | |
| Bailout stenting after DCB | 0 (0) | 0 (0) | | At follow-up | | | | Number of patients | 114 | 88 | | Angiography (%) | 145 (75.9) | 102 (75.6) | 1.0 | MLD (mm) | 1.76 ± 0.62 | 1.89 ± 0.59 | 0.094 | % diameter stenosis (%) | 29.24 ± 17.55 | 25.77 ± 15.64 | 0.11 | Late lumen loss (mm) | −0.00 ± 0.42 | −0.01 ± 0.42 | 0.86 | Restenosis (%) | 13 (9.0) | 10 (9.8) | 0.83 |
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MLD, minimal lumen diameter; SD, standard deviation; PCI, percutaneous coronary intervention; DCA, directional coronary atherectomy; PTCRA, percutaneous coronary rotational atherectomy.
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