Table 1: Distribution of baseline clinical characteristics, procedural characteristics of index procedure and paclitaxel-eluting balloon (PEB) angioplasty, and clinical outcomes according to the presence or absence of events after PEB angioplasty (n = 58).
Variables | Non-PEB failure (n = 50) | PEB failure (n = 8) | P-value |
mean ± SD or n (%) | |||
Sex, male | 40 (80) | 6 (75) | 0.62 |
Age, years | 64.7 ± 12.1 | 63.5 ± 7.2 | 0.10 |
Cardiovascular risk factors | |||
Diabetes mellitus | 18 (36) | 4 (50) | 0.74 |
Hypertension | 30 (60) | 8 (100) | 0.16 |
Dyslipidemia | 42 (84) | 8 (100) | 0.48 |
Prior stroke | 0 (0.0) | 0 (0.0) | - |
Chronic kidney disease | 2 (4.0) | 0 (0.0) | 0.86 |
Current smoker | 4 (8.0) | 0 (0.0) | 0.24 |
Index procedural variables | |||
Clinical presentation | 0.24 | ||
Stable angina | 28 (56) | 2 (25) | |
Unstable angina | 14 (28) | 6 (75) | |
NSTEMI | 8 (16) | 0 (0.0) | |
STEMI | 0 (0.0) | 0 (0.0) | |
Stent type | 0.68 | ||
Bare metal stent | 8 (16) | 0 (0.0) | |
1st generation DES | 20 (40) | 4 (50) | |
2nd generation DES | 22 (44) | 4 (50) | |
Stent diameter, mm | 3.1 ± 0.3 | 3.3 ± 0.3 | 0.87 |
Stent length, mm | 24.5 ± 5.5 | 20.0 ± 3.5 | 0.38 |
Procedural variables of PEB angioplasty | |||
Diameter, mm | 3.0 ± 0.4 | 3.1 ± 0.3 | 0.53 |
Length, mm | 22.0 ± 5.0 | 21.5 ± 3.0 | 0.43 |
Time to TLR/TVR, years | 0.74 | 1 | 0.06 |
Clinical outcomes | < 0.001 | ||
All-cause mortality | 0 (0.0) | 1 (12.5) | |
Myocardial infarction | 0 (0.0) | 1 (12.5) | |
TVR | 0 (0.0) | 6 (75.0) |
*χ2-test and student t test for no event group vs. event group; p-value was calculated by χ2 - test for continuous variables and student t test for categorical variables (p-value < 0.05). DES: Drug-eluting stents, ISR: In-stent restenosis, MI: Myocardial infarction, NSTEMI: Non-ST elevation myocardial infarction, PCI: Percutaneous coronary intervention, PEB: Paclitaxel-eluted balloon, STEMI: ST elevation myocardial infarction. TLR: Target lesion revascularization, TVR: Target vessel revascularization.