Research Article

Reattempt Percutaneous Coronary Intervention of Chronic Total Occlusions after Prior Failures: A Single-Center Analysis of Strategies and Outcomes

Table 1

Baseline clinical characteristics of the patients.

CategoryOverall (n = 206)Final success (n = 166)Final failure (n = 40) value

Age (years)60.96 ± 12.3661.04 ± 12.3460.62 ± 12.600.851
Male (%)186 (90.3)150 (90.4)36 (90.0)0.945
HTN (%)143 (69.4)111 (66.9)32 (80.0)0.106
DM (%)69 (33.5)58 (34.9)11 (27.5)0.371
HL (%)43 (20.9)35 (21.1)8 (20.0)0.880
Smokers (%)113 (54.9)93 (56.0)20 (50.0)0.492
LVEF (%)56.37 ± 9.9055.99 ± 9.7157.97 ± 10.610.255
≤40 (%)17 (8.3)13 (7.8)4 (10.0)0.655
>40 (%)189 (91.7)153 (92.2)36 (90.0)0.655
eGFR (mL/min/1.73 m2)82.71 ± 22.1283.25 ± 21.4980.45 ± 24.730.473
≤60 (%)36 (17.5)28 (16.9)8 (20.0)0.640
>60 (%)170 (82.5)138 (83.1)32 (80.0)0.640
Prior MI (%)97 (47.1)74 (44.6)23 (57.5)0.142
Prior PCI (%)145 (70.4)120 (72.3)25 (62.5)0.223
Prior CABG (%)12 (5.8)12 (7.2)0 (0.0)0.169

Values are mean ± SD or percentages. value stands for comparison between final successful and final failed patients’ clinical characteristics. HTN, hypertension; DM, diabetes mellitus; HL, hyperlipidemia (low-density lipoprotein cholesterol ≥3.4 mmol/L); LVEF, left ventricular ejection fraction; eGFR, estimated glomerular filtration rate; MI, myocardial infarction; PCI, percutaneous coronary intervention; CABG, coronary artery bypass grafting.