Research Article

Bivalirudin vs. Heparin on Radial Artery Thrombosis during Transradial Coronary Intervention: An Optical Coherence Tomography Study

Table 1

Baseline characteristics of the study population.

Unmatched cohort (n = 211)Matched cohort (n = 119)Std. mean diff.
Bivalirudin (n = 67)UFH (n = 144) valueBivalirudin (n = 47)UFH (n = 75) valueBeforeAfter

Propensity0.4310.2650.3760.3750.9090.002
Age (years)60.4 ± 12.654.9 ± 11.90.00358.9 ± 13.257.3 ± 11.00.4450.4320.040
Male gender51 (76.1%)125 (86.8%)0.05244 (84.6%)66 (83.5%)0.8700.249−0.090
Body mass index (kg/m2)25.6 (23.9–27.7)25.9 (23.6–28.4)0.99625.4 (23.5–28.9)25.7 (23.8–29.0)0.8730.0100.021
Diabetes22 (32.8%)40 (27.8%)0.45316 (30.8%)27 (34.2%)0.6840.107−0.061
Hypertension45 (67.2%)70 (48.6%)0.01233 (63.5%)49 (62.0%)0.8680.392−0.081
Hyperlipidemia55 (82.1%)103 (71.5%)0.10040 (76.9%)60 (75.9%)0.8980.273−0.050
Current smoking39 (58.2%)98 (68.1%)0.16334 (65.4%)52 (65.8%)0.959−0.1980.116
PVD3 (4.5%)5 (3.5%)0.7113 (5.8%)4 (5.1%)1.0000.0480.046
Family history12 (17.9%)18 (12.5%)0.2958 (15.4%)14 (17.7%)0.7260.140−0.075
Creatinine (μmol/L)75.00 (64.00–84.00)78.00 (66.25–89.75)0.13075.00 (67.50–86.00)74.00 (63.00–88.00)0.510−0.2400.090
Diagnoses0.0650.702−0.433−0.112
 MI65 (97.0%)129 (89.6%)50 (96.2%)74 (93.7%)
 UAP2 (3.0%)15 (10.4%)2 (3.8%)5 (6.3%)
Multivessel disease, N (%)86.6%78.5%82.7%82.3%
Antiplatelet medicine
 Aspirin67 (100%)144 (100%)47 (100%)75 (100%)
 Clopidogrel31 (46.3%)58 (40.3%)23 (44.2%)30 (38.0%)
 Ticagrelor36 (53.7%)86 (59.7%)29 (55.8%)49 (62.0%)
 Tirofiban24 (35.8%)31 (21.5%)0.02817 (32.7%)16 (20.3%)0.1090.2960.159
Total dose of UFH (IU)8000 (7025, 9200)8000 (7200, 9000)
Procedure type0.0231.0000.7300.079
 CAG1 (1.5%)15 (10.4%)1 (1.9%)3 (3.8%)
 PCI66 (98.5%)129 (89.6%)51 (98.1%)76 (96.2%)
Procedure time (min)73.00 (61.00–87.00)72.00 (57.00–88.75)0.55772.00 (61.25–81.50)69.00 (56.00–84.00)0.1930.0080.139
Number of total catheters2.07 ± 0.7451.94 ± 0.9360.1321.97 ± 0.6982.02 ± 1.0190.899
 Number of diagnostic catheters0.81 ± 0.6250.79 ± 0.6160.9070.76 ± 0.5820.83 ± 0.6480.552
 Number of guiding catheters1.26 ± 0.4691.15 ± 0.5570.0221.22 ± 0.4141.19 ± 0.6270.271

PVD: peripheral vascular disease, MI: myocardial infarction, UAP: unstable angina pectoris, CAG: coronary angiography, and PCI: percutaneous coronary intervention.