Table 2.
Data Comparison Between Patients With and Without RSU
| Patients without RSU (n = 227) | Patients with RSU (n = 11) | p value | |
|---|---|---|---|
| Male (n) | 205 (90.3) | 11 (100) | 0.606 |
| Age (years) | 64.6 ± 13.7 | 60.8 ± 13.8 | 0.243 |
| Hypertension | 167 (73.6) | 9 (81.8) | 0.733 |
| Diabetes mellitus | 86 (37.9) | 7 (63.6) | 0.115 |
| Dyslipidemia | 122 (53.7) | 9 (81.8) | 0.117 |
| History of CABG | 20 (8.8) | 1 (9.1) | 1.000 |
| Prior PCI | 59 (26.0) | 11 (100) | <0.001 |
| Variables in index PCI | |||
| No. of diseased vessel | 0.253 | ||
| Single vessel disease | 22 (9.7) | 3 (27.3) | |
| Double vessel disease | 67 (29.5) | 2 (18.2) | |
| Three vessel disease | 107 (47.1) | 6 (54.5) | |
| Othersa | 31 (13.7) | 1 (9.1) | |
| Approach | 0.253 | ||
| TRA | 93 (41.0) | 3 (27.3) | |
| TFA | 63 (27.8) | 5 (45.5) | |
| TRA plus TFA | 41 (18.1) | 0 (0) | |
| TFA plus TFA | 29 (12.8) | 3 (27.3) | |
| Othersb | 1 (0.4) | 0 (0) | |
| GC technique | |||
| Single/Double (n/n) | 156/71 | 7/4 | 0.745 |
| Single target CTO vessel | 0.006 | ||
| RCA | 84 (37.0) | 7 (63.6) | |
| LAD | 65 (28.6) | 0 (0) | |
| LCX | 27 (11.9) | 4 (36.4) | |
| Othersc | 51 (22.5) | 0 (0) | |
| RCA vs. Non-RCA PCI | 103 (45.4) | 7 (63.6) | 0.354 |
| LAD vs. Non-LAD PCI | 72 (31.7) | 0 (0) | 0.037 |
| LCX vs. Non-LCX PCI | 49 (21.6) | 4 (36.4) | 0.269 |
| Main use of a large LAO view | 107 (47.1) | 11 (100) | <0.001 |
| PCI strategy (n/n) | |||
| Retrograde/Non-retrograde | 18/209 | 4/7 | 0.012 |
| Fluoroscopic timed (minutes) | 48.3 ± 33.1 | 136.5 ± 69.7 | <0.001 |
| PT (hours) | |||
| >1 | 143 (63.0) | 10 (90.9) | 0.103 |
| >1.5 | 85 (37.4) | 10 (90.9) | 0.001 |
| >2 | 55 (24.4) | 10 (90.9) | <0.001 |
| >2.5 | 29 (12.8) | 9 (81.8) | <0.001 |
| >3 | 16 (7.0) | 8 (72.7) | <0.001 |
| >3.5 | 9 (4.0) | 5 (45.5) | <0.001 |
| >4 | 4 (1.8) | 2 (18.2) | 0.026 |
| Mean (minutes) | 88.5 ± 53.7 | 226.5 ± 139.2 | <0.001e |
| Technical successf | 179 (78.9) | 6 (54.5) | 0.071 |
Values are means ± standard deviation or n (%).
PCI = percutaneous coronary intervention; RSU = radiation-induced skin ulcer; CABG = coronary artery bypass grafting; TFA = trans-femoral artery approach; TRA = trans-radial artery approach. GC = guiding catheter; CTO = chronic total occlusion; RCA = right coronary artery; LAD = left anterior descending artery; LCX = left circumflex artery; LAO = left anterior oblique; PT = procedure time.
aInvolvement of left main, left internal mammary artery, or greater saphenous vein.
bTrans-brachial artery approach.
cPCI at multiple CTO vessels or left main bifurcation.
dA fluoroscopy time was estimated for each index CTO PCI.
eAnalysis using Mann-Whitney U test.
fCompletion of implantation of coronary stent(s).