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Table 1 Clinical characteristics of included patients according to the use of thrombus aspiration during P-PCI

From: Thrombus aspiration in patients with ST-elevation myocardial infarction: results of a national registry of interventional cardiology

  Before Matching After Matching
  Thrombus aspiration and P-PCI (n = 3311) P-PCI only (n = 6247) p-value Thrombus aspiration and P-PCI (n = 1750) P-PCI only (n = 1750) p-value
Age 60 ± 13 63 ± 13 < 0.001 61 ± 13 60 ± 13 0.10
Male 77.4% 74.6% 0.002 77.7% 78.6% 0.59
Risk factors
 Dyslipidemia 44.7% 44.6% 0.95 45.0% 46.2% 0.50
 DM 18.7% 24.0% < 0.001 19.0% 18.9% 0.93
 Smoking 43.1% 36.4% < 0.001 41.8% 45.0% 0.38
 Hypertension 53.3% 59.7% < 0.001 54.1% 54.5% 0.87
Previous history
 MI 11.3% 14.2% < 0.001 12.1% 12.3% 0.84
 PCI 12.3% 14.0% 0.035 12.9% 13.8% 0.46
 CABG 1.3% 1.7% 0.188 1.3% 1.1% 0.64
 Stroke 3.9% 5.2% 0.009 4.0% 4.1% 1.00
 PAD 1.9% 3.1% 0.002 1.9% 1.9% 1.00
 HF 0.9% 1.9% < 0.001 0.8% 0.6% 0.69
 CKD 3.2% 3.4% 0.56 3.7% 4.6% 0.21
Admission
 KK IV class 6.3% 6.6% 0.57 7.3% 6.4% 0.43
Infarction-related artery
 LM 1.0% 1.3% 0.20 3.6% 3.5% 0.86
 LAD 42.4% 35.7% < 0.001 69.1% 69.4% 0.86
 Circumflex 13.4% 17.5% < 0.001 39.5% 46.8% < 0.001
 RCA 42.8% 45.1% 0.03 58.8% 57.3% 0.36
Radial access 40.2% 22.9% < 0.001 40.3% 20.3% < 0.001
Stenting / DES 79.4% / 47.5% 75.9% / 50.9% < 0.001 91.6% / 45.4% 90.9% / 46.9% 0.50 / 0.40
GpIIb/IIIa 36.9% 18.9% < 0.001 51.9% 31.0% < 0.001
  1. CABGCoronary artery bypass graft, CKD Chronic kidney disease, DES Drug-eluting stent, DM Diabetes Mellitus, HF heart failure, KK Killip-Kimball, LAD Left Anterior Descending Artery, LM Left Main Artery, MI Myocardial infarction, PAD peripheral artery disease, PCI angioplasty/percutaneous coronary intervention, P-PCI Primary angioplasty. RCA Right Coronary Artery, TA Thrombus aspiration