Table 2

Light Microscopy

Stent TypesStent Area, mm2Lumen Area, mm2Stenosis, %Neointimal Area, mm2Injury ScoreInflammation ScoreStruts With Giant Cells,%Fibrin Score
BP-SES (n = 8)6.6 ± 0.36.0 ± 0.310.1 ± 1.40.67 ± 0.090.4 (0.3–0.5)0.7 (0.3–1.0)33 (25–42)0.3 (0.1–1.0)
DP-EES (n = 4)6.4 ± 0.25.8 ± 0.19.2 ± 1.30.58 ± 0.090.3 (0.2–0.4)0.5 (0.3–1.4)23 (10–32)0.3 (0–0.9)
BMS (n = 4)6.3 ± 0.15.3 ± 0.215.7 ± 1.70.99 ± 0.100.5 (0.4–0.6)0.3 (0.1–0.3)41 (29–53)0 (0–0)
p value0.09
 BP-SES vs. DP-EES<0.010.440.170.060.030.780.170.63
 BP-SES vs. BMS<0.01<0.01<0.01<0.010.21<0.010.02<0.01

Values are mean ± SD or median (interquartile range).

BMS = bare-metal stent(s); BP-SES = biodegradable polymer sirolimus-eluting stent(s); DP-EES = durable polymer everolimus-eluting stent(s).