Table 2

Coronary artery plaque characteristics revealed by invasive angiography in the PRAMI participants

Culprit-artery-only PCIPreventive PCIp Value
Pre-PCI*n=42n=42
 Time to reperfusion (minutes) median, IQR174 (129, 413)177 (123, 326)0.20
 Syntax score pre-PCI17.75 (12.00, 25.75)13.00 (10.00, 21.00)0.09
 APPROACH score (QCA) pre-PCI50.73 (31.28, 63.00)39.60 (27.75, 58.03)0.09
 AHA classification-simple lesions (A, B1), n (%)18 (25%)18 (25%)1.00
Culprit lesions*n=43†n=42
 Complex lesion, n (%)41 (95%)42 (100%)
 Median QCA stenosis ratio (% diameter)100.00 (65.14, 100.00)100.00 (78.85, 100)0.16
 Lesion length (mm)11.66 (9.48, 14.38)13.64 (8.63, 17.72)0.353
 APPROACH score (QCA)27.75 (18.50, 44.50)27.50 (18.50, 28.24)0.12
Non-culprit lesions*n=56n=54
 Complex lesion, n (%)21 (38%)31 (57%)
 Median QCA stenosis ratio (% diameter)59.53 (51.66, 78.68)56.31 (48.92, 65.20)0.06
 Lesion length (mm)10.43 (7.14, 13.74)10.48 (7.66, 15.29)0.632
 APPROACH score (QCA)18.50 (0.00, 27.75)15.25 (0.00, 29.70)0.68
Post-PCI*n=42n=42
 Intraprocedural thrombotic events n (%)6 (14)9 (21)0.754
 Syntax score, post-PCI4.00 (3.00, 7.25)0.00 (0.00, 0.00)<0.001
 APPROACH score (QCA)18.50 (0.00, 27.75)0.00 (0.00, 0.00)<0.001
  • *Continuous data are summarised by median (IQR); Mann-Whitney test for continuous data, χ2 for categorical variables.

  • †One patient in the culprit-only group had two culprit lesions in the same coronary artery.

  • AHA, American Heart Association; PCI, percutaneous coronary intervention; PRAMI, preventive angioplasty in myocardial infarction; QCA, quantitative coronary analysis.