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Table 2 Procedure-related characteristics of the studied patients

From: Efficacy and safety of standard and low dose ticagrelor versus clopidogrel in east AsianPatients with chronic total occlusion undergoing percutaneous coronary intervention: a single center retrospective study

VariablesTicagrelor 90 mg (n = 171)Ticagrelor 60 mg (n = 178)Clopidogrel 75 mg (n = 176)P-value
Site of access
 Radial58 (33.9%)52 (29.2%)54 (30.7%)0.627
 Femoral23 (13.5%)41 (23.0%)35 (19.9%)0.067
 Radial and Femoral90 (52.6%)85 (47.8%)87 (49.4%)0.657
 Total amount of conrrast (ml)233.8 ± 102.0228.3 ± 98.6215.8 ± 94.60.327
 Total time of procedure (min)123.6 ± 55.9119.8.1 ± 57.5128.4 ± 64.30.621
 LAD occlusion, n (%)60 (35.1%)55 (30.9%)58 (33.0%)0.716
 LCX occlusion, n (%)32 (18.7%)29 (16.3%)28 (15.9%)0.766
 RCA occlusion, n (%)89 (52.0%)96 (53.9%)92 (52.3%)0.939
 Occlusion lesion length, mm58.4 ± 26.355.9 ± 24.656.6 ± 25.40.748
 Retrograde filling > grade 285 (49.7%)82 (46.1%)81 (46.0%)0.730
 Reverse wire technique44 (25.7%)51 (28.7%)48 (27.3%)0.827
 IABP, n(%)12 (7.0%)9 (5.1%)11 (6.3%)0.743
 IVUS, n(%)34 (19.9%)38 (21.3%)36 (20.5%)0.953
 Number of stents per patient2.8 ± 1.92.6 ± 1.82.7 ± 2.00.568
 Stent length (mean, mm)65.9 ± 26.366.4 ± 29.567.2 ± 31.40.382
 TIMI III flow after PCI152 (88.9%)162 (91.0%)158 (89.8%)0.814
 Glycoprotein IIb/IIIa receptor inhibitor, n(%)46 (26.9%)55 (30.9%)52 (29.5%)0.716
 LMWH, (%)50 (29.2%)48 (27.0%)56 (31.8%)0.611
  1. Abbreviations: LAD Left anterior descending artery, LCX Left circumflex coronary artery, RCA Right coronary artery IABP, Intra-aortic balloon pump, IVUS Intravascular ultrasonography, TIMI Thrombolysis in myocardial infarction, LMWH Low-molecular-weight heparin