Table 2 Characteristics of coronary lesions and PCI procedures of patients in the RA + CB and RA (control) groups*
RA + CB | RA | P | ||
|---|---|---|---|---|
Subjects, n | 35 | 36 | ||
Lesion location, n (%) | Left main coronary artery | 8 (22.9) * | 2 (5.6) | 0.036 |
Left anterior descending artery | 20 (57.1) | 23 (63.9) | 0.561 | |
Left circumflex artery | 5 (14.3) | 4 (11.1) | 0.688 | |
Right coronary | 7 (20.0) | 9 (25.0) | 0.614 | |
Ostial lesion | 3 (8.6) | 4 (11.1) | 0.720 | |
Chronic total occlusion | 0 (0) | 0 (0) | – | |
Bifurcated lesion (Medina 1, 1, 1) | 11 (31.4) | 14 (38.9) | 0.511 | |
Bifurcated lesion (Medina 1, 1, 0) | 2 (5.7) | 2 (5.6) | 0.977 | |
Indications for RA | Balloon catheter not passed, n (%) | 20 (57.1) | 22 (61.1) | 0.275 |
Balloon catheter under expansion, n (%) | 15 (42.9) | 14 (38.9) | 0.327 | |
Final bur size, mm | 1.58 ± 0.15 | 1.51 ± 0.18 | 0.100 | |
Burr/artery ratio | 0.56 ± 0.03 | 0.56 ± 0.04 | 0.934 | |
Pre-dilatation after RA | Pre-dilatation, n (%) | 35 (100) | 36 (100) | 1.000 |
Max balloon diameter, mm | 2.65 ± 0.31 | 2.53 ± 0.37 | 0.163 | |
Max balloon inflation pressure, atm | 13.8 ± 1.3 | 14.1 ± 1.0 | 0.190 | |
Balloon inflation time, s | 18.3 ± 3.6 | 19.7 ± 4.0 | 0.134 | |
Stent implantation | Stent delivery failure, n (%) | 0 (0) | 0 (0) | __ |
Stent diameter, mm | 2.79 ± 0.29 | 2.73 ± 0.37 | 0.418 | |
Stent release pressure, atm | 14.5 ± 1.5 | 14.8 ± 1.5 | 0.377 | |
Post-dilatation after stent | Non-compliant balloon, n (%) | 28 (82.9) | 31 (86.1) | 0.188 |
Max balloon inflation pressure, atm | 18.4 ± 1.7 | 18.8 ± 2.4 | 0.421 | |
Balloon inflation time, s | 20.4 ± 2.9 | 19.5 ± 2.4 | 0.210 |