Table 1 Baseline demographic characteristics, clinical features, and laboratory results of the patients. Angiographic, technical, and procedural features of chronic total occlusion lesions were also summarized in the lower part of the table
From: Rational guidewire use in the coronary chronic total occlusion interventions
Variables | % (n: 177) | Variables | % (n: 177) |
|---|---|---|---|
Age (years) | 62.4 ± 10.5 | Stable angina pectoris | 75.7% (134) |
Range | 29–86 years | CCS class 1 | 4.5% (8) |
Sex | CCS class 2 | 31.6% (56) | |
Male | 79.7% (141) | CCS class 3 | 35.6% (63) |
Female | 20.3% (36) | CCS class 4 | 4% (7) |
Presence of diabetes mellitus | 37.3% (57) | Unstable angina | 4.5% (8) |
Presence of hypertension | 54.2% (96) | Previous MI | 29.3% (52) |
Presence of dyslipidemia | 43.5% (77) | Previous CABG | 18.1% (32) |
Smoking | Documentation of ischemia | 29.9% (53) | |
Current smoker | 32.2% (57) | LV EF | |
Ex smoker | 20.3% (36) | > 50% | 66.7% (118) |
BMI (kg/m2) | 28.27 ± 4.42 | 35–50% | 28.8% (51) |
Initial creatinine (mg/dl) | 1.00 ± 0.33 | < 35% | 4.5% (8) |
Post-procedural creatinine (mg/dl) | 1.04 ± 0.34 | Hypokinesia in cto territory | 50.3% (89) |
Initial GFR (ml/minutes) | 90.3 ± 31.8 | Akinesia in cto territory | 2.3% (4) |
Vessel | J-CTO Score | 1.42 ± 1.16 | |
LAD | 32.8% (58) | 0 | 26.0% (46) |
LCX | 19.8% (35) | 1 | 28.2% (50) |
RCA | 47.5% (84) | 2 | 27.7% (49) |
Segment | 3 | 13.6% (24) | |
Ostial | 6.8% (12) | 4 | 4.0% (7) |
Proximal | 36.7% (65) | 5 | 0.6% (1) |
Mid | 46.3% (82) | EuroScore | 1.44 ± 1.18 |
Distal | 10.2% (18) | 0 | 23.2% (41) |
In-stent occlusion | 13% (23) | 1 | 31.1% (55) |
Multilevel occlusion | 11.9% (21) | 2 | 32.8% (58) |
Bifurcation in cto segment | 33.9% (60) | 3 | 6.8% (12) |
Radial access | 58.8% (104) | 4 | 4.0% (7) |
Contra-lateral injection | 53.1% (94) | 5 | 1.7% (3) |
Retrograde approach | 4% (7) | 6 | 0.6% (1) |
Guiding catheter | Procedural technique | ||
6F | 16.9% (30) | Single-wire cross | 60.5% (107) |
7F | 83.1% (147) | Parallel-wire cross | 6.2% (11) |
Successfull procedure | 90.4% (170) | Step up—step down | 23.2% (41) |
Dissection and re-entry | 8.5% (15) | ||
Reversed cart | 1.7% (3) |