Table 3

Quantitative Angiographic Analysis

CharacteristicsEES (n = 224)SES (n = 226)p Value
Before procedure
 Lesion length, mm34.0 ± 15.434.3 ± 13.50.85
 Reference vessel diameter, mm3.18 ± 0.473.14 ± 0.420.34
 Minimal luminal diameter, mm1.07 ± 0.451.06 ± 0.450.92
 Diameter stenosis, %66.3 ± 13.566.1 ± 13.10.85
Immediately after procedure
 Minimal luminal diameter, mm
  In-segment2.33 ± 0.462.31 ± 0.450.65
  In-stent2.64 ± 0.422.63 ± 0.400.80
  Proximal margin3.23 ± 0.543.22 ± 0.530.82
  Distal margin2.35 ± 0.472.33 ± 0.450.66
 Diameter stenosis, %
  In-segment17.4 ± 9.317.2 ± 9.50.84
  In-stent9.7 ± 6.89.8 ± 6.40.89
  Proximal margin10.1 ± 7.710.3 ± 8.40.74
  Distal margin16.1 ± 9.416.3 ± 9.60.81
 Acute gain, mm
  In-segment1.27 ± 0.571.25 ± 0.530.77
  In-stent1.57 ± 0.531.56 ± 0.510.91
Follow-up at 9 months, %179 (80)184 (81)0.69
 Late luminal loss, mm
  In segment (primary end point)0.17 ± 0.410.09 ± 0.300.042
  In stent0.22 ± 0.420.18 ± 0.280.29
  Proximal margin0.24 ± 0.520.13 ± 0.340.02
  Distal margin0.11 ± 0.370.04 ± 0.280.051
 Minimal luminal diameter, mm
  In-segment2.17 ± 0.492.26 ± 0.460.09
  In-stent2.42 ± 0.522.47 ± 0.470.31
  Proximal margin3.02 ± 0.663.14 ± 0.500.047
  Distal margin2.25 ± 0.512.32 ± 0.450.20
 Diameter stenosis, %
  In-segment23.7 ± 15.321.4 ± 12.20.13
  In-stent17.8 ± 14.617.1 ± 12.40.65
  Proximal margin16.5 ± 15.112.9 ± 9.90.01
  Distal margin18.8 ± 12.316.9 ± 12.20.12
 Angiographic restenosis
  In-segment13 (7.3)5 (2.7)0.046
  In-stent7 (3.9)5 (2.7)0.53
  Proximal margin6 (3.4)00.01
  Distal margin1 (0.6)00.49

Values are mean ± SD or n (%).

Abbreviations as in Table 1.

  • In 1 case in the EES group, angiographic restenosis was detected concomitantly in the in-stent area and proximal of the margins.