Clinical Study

The Predictors of Target Lesion Revascularization and Rate of In-Stent Restenosis in the Second-Generation Drug-Eluting Stent Era

Table 5

Lesion characteristics and DS% progression rate according to types of DESs.

Clinical FactorsOverallCoCr-EESZESBESPtCr-EESP
(N=944)(N=244)(N=310)(N=166)(N=224)

Reference vessel diameter (mm)2.92±0.522.97±0.562.91±0.522.96±0.492.85±0.480.054
Lesion length (mm)27.73±17.2526.04±16.4528.97±17.9826.56±15.9628.93±18.050.247
Pre-procedure MLD (mm)0.73±0.500.76±0.530.65±0.510.87±0.440.71±0.460.755
MLD in-segment (mm)
 (i) Post-procedure2.11±0.522.13±0.552.08±0.522.13±0.502.11±0.510.906
 (ii) follow-up1.97±0.581.97±0.591.99±0.571.95±0.581.96±0.580.726
 (iii) follow-up1.96±0.522.01±0.551.94±0.521.96±0.491.93±0.520.180
MLD in-stent (mm)
 (i) Post-procedure2.48±0.442.49±0.472.47±0.432.47±0.422.48±0.440.852
 (ii) follow-up2.19±0.602.19±0.622.20±0.592.21±0.592.15±0.600.782
 (iii) follow-up2.13±0.552.16±0.612.12±0.542.17±0.502.09±0.540.480
Pre-procedure DS (%)74.8±15.774.4±16.077.0±16.670.6±13.775.1±14.90.431
DS% in-segment
 (i) Post-procedure21.5±11.622.9±12.521.1±11.821.4±10.820.8±11.00.075
 (ii) follow-up26.2±16.527.3±17.025.0±15.927.5±17.625.8±15.90.649
 (iii) follow-up27.3±15.027.9±15.826.2±15.327.7±12.628.1±15.20.624
DS% in-stent
 (i) Post-procedure11.8±8.513.0±8.410.5±8.812.6±9.011.7±7.40.460
 (ii) follow-up22.0±17.522.4±17.920.8±16.421.8±18.323.3±17.90.454
 (iii) follow-up23.7±15.524.0±17.822.8±15.322.9±12.325.3±15.50.346
Acute gain (mm)
 (i) In-segment1.38±0.591.37±0.581.42±0.631.26±0.481.40±0.600.731
 (ii) In-stent1.74±0.541.73±0.531.81±0.581.61±0.471.75±0.510.395
Initial ΔDS4.85±15.134.71±16.534.00±14.806.33±14.325.10±14.590.457
In-segment (%)
Initial ΔDS10.28±15.899.52±16.0210.27±15.159.46±14.4311.72±17.630.204
In-stent (%)
Delayed ΔDS3.66±11.873.65±13.522.82±11.534.04±9.954.55±11.810.264
In-segment (%)
Delayed ΔDS4.59±11.604.81±14.083.73±9.875.27±11.495.10±11.110.486
In-stent (%)
Initial DS%/year in-segment6.08±20.776.48±22.874.75±17.4910.22 ±29.614.45±13.000.841
Initial DS%/year in-stent12.12±20.9712.23±20.9212.15±18.6014.34±29.7610.36±15.740.525
Delayed DS%/year in-segment2.98±9.842.65±9.932.09±9.573.26±7.894.30±11.160.130
Delayed DS%/year in-stent3.68±10.104.11±12.832.39±8.134.02±8.304.77±10.460.205

CoCr-EES, cobalt chromium everolimus-eluting stent; ZES, zotarolimus-eluting stent; BES, Biolimus-eluting stent: PtCr-EES, platinum chromium everolimus-eluting stent; MLD, minimal lumen diameter; DS, diameter stenosis.