Table 2. Procedural characteristics.
| Baseline angiographic data |
Number (%) or mean±SD |
|
|---|---|---|
| Dominance | Right | 76 (93.8) |
| Left | 4 (4.9) | |
| Codominance | 1 (1.2) | |
| CTO vessel (RCA/LAD/LCx) | RCA | 53 (65.4) |
| LAD | 20 (24.7) | |
| LCx | 8 (9.9) | |
| Donor vessel | RCA | 20 (24.7) |
| LAD | 50 (61.7) | |
| LCx | 8 (9.9) | |
| LM/SVG | 1 (1.2) /2 (2.4) | |
| Rentrop grade | I | 3 (37) |
| II | 25 (30.9) | |
| III | 52 (64.2) | |
| Collateral connection grade | I | 48 (59.3) |
| II | 20 (24.7) | |
| III | 13 (16) | |
| J-CTO score | 2±1.3 | |
| CASTLE score | 1.6±1.3 | |
| CTO PCI procedure | ||
| 1st Access site | Left radial artery | 1 (1.2) |
| Left femoral artery | 0 (0) | |
| Right radial artery | 14 (17.3) | |
| Right femoral artery | 66 (81.5) | |
| 2nd Access site | Left radial artery | 5 (6.1) |
| Left femoral artery | 5 (6.1) | |
| Right radial artery | 53 (65.4) | |
| Right femoral artery | 18 (22.2) | |
| Wiring time (min) | 52.5±45.1 | |
| Final strategy | AWE | 52 (64.2) |
| RWE | 2 (2.4) | |
| ADR | 7 (8.6) | |
| RDR | 20 (24.7) | |
| Number of stents | 2±0.9 | |
| Number of stents | I | 24 (29.6) |
| II | 32 (39.5) | |
| III | 20 (24.7) | |
| VI | 5 (6.1) | |
| Total stent length (mm) | 68.4±30.3 | |
| Maximal stent diameter (mm) | 3.2±0.5 | |
| ADR: antegrade dissection re-entry; AWE: antegrade wire escalation; CTO: chronic total occlusion; J-CTO; Japanese chronic total occlusion; LAD: left descending anterior; LCx: left circumflex; LM: left main; PCI: percutaneous coronary intervention; RCA: right coronary artery; RDR: retrograde dissection re-entry; RWE: retrograde wire escalation; SD: standard deviation; SVG: saphenous vein graft | ||