Research Article
Intravascular Lithotripsy for Calcium Modification in Chronic Total Occlusion Percutaneous Coronary Intervention
Table 1
Patient demographics and CTO characteristics.
| | N = 55 |
| Age (years)(mean) | 70.2 | Gender (F/M) | (7/48) | Clinical presentation | | Stable angina | 43 (78%) | Acute coronary syndrome | 11 (20%) | Asymptomatic ischemia | 2 (3.6%) | Prior CABG | 20 (36%) | Prior PCI | 34 (61.8%) | Hypertension | 36 (65.5%) | Hypercholesterolemia | 39 (70.1%) | Diabetes | 20 (36%) | eGFR (mean) | 69 | Smoking | 24 (43.6%) | LVEF (%) | 50% | Target vessel | | LAD | 16 (29%) | RCA | 33 (60%) | CX | 7 (13%) | LMS | 1 (2%) | >1 vessel treated | 2 (3.5%) | CTO characteristics | | Calcification | 55 (100%) | Ambiguous proximal cap | 21 (38%) | Length >20 mm | 35 (63.6%) | Tortuosity | 24 (43.6%) | Ambiguous distal cap | 26 (47.3%) | Instent occlusion | 8 (14.5%) | Reattempt | 11 (20%) | Modification procedure at 1st attempt | 5 (9.1%) | J-CTO score (0–5)(mean) | 3.1 |
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[CABG = coronary artery bypass grafting; PCI = percutaneous coronary intervention; eGFR = estimated glomerular filtration rate; LVEF = left ventricular ejection fraction; LAD = left anterior descending artery; RCA = right coronary artery; CX = circumflex artery; LMS = left main stem; J-CTO = Japanese-CTO score].
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