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 1^st attempt	5 (9.1%)
J-CTO score (0–5)(mean)	3.1

[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].