Determinants of percutaneous coronary intervention success in repeat chronic total occlusion procedures following an initial failed attempt

Table 1 Baseline patient characteristics

Patient demographics	Overall (n = 58)	Success (n = 40)	Failure (n = 18)	P value
Age, yr	59.2 ± 11.6	59.2 ± 11.6	60.2 ± 11.7	0.78
Male	50 (86.2%)	33 (82.5%)	17 (94.4%)	0.41
Obesity	20 (34.4%)	14 (35%)	6 (33.3%)	1
Hypertension	39 (67.2%)	24 (60%)	15 (83.3%)	0.15
Dyslipidaemia	41 (70.6%)	27 (67.5%)	14 (77.8%)	0.63
Diabetes	23 (39.6%)	15 (37.5%)	8 (44.4%)	0.84
Smoking	38 (65.5%)	26 (65%)	12 (66.7%)	1
Previous MI	22 (37.9%)	15 (37.5%)	7 (38.9%)	1
Previous PCI	27 (46.6%)	17 (42.5%)	10 (55.6%)	0.52
Previous CABG	2 (3.4%)	1 (2.5%)	1 (5.6%)	0.52
LVEF < 45%	22 (37.9%)	15 (37.5%)	7 (38.9%)	1
CKD IV	3 (5.2%)	3 (7.5%)	0 (0%)	0.55

MI: Myocardial infarction; PCI: Percutaneous coronary intervention; CABG: Coronary artery bypass grafting; LVEF: Left ventricular ejection fraction; CKD: Chronic kidney disease.