Keimyung Med J.  2015 Jun;34(1):1-13. 10.0000/kmj.2015.34.1.1.

Positive Peri-Stent Vascular Remodeling and Late-Acquired Incomplete Stent Apposition in Intravascular Ultrasound (IVUS) after Drug-Eluting Stent Implantation

• Kim HE
• Hur SH
• Kim KB
• Kim YN
• Han S
• Kim H
• Yoon HJ
• Cho YK
• Won KB
• Kim IC

• KMID: 2093081
• DOI: http://doi.org/10.0000/kmj.2015.34.1.1

Abstract

The peri-stent vascular changes after 2nd generation drug-eluting stent (2G DES) implantation have not been fully investigated compare to 1st generation DES (1G DES). From March 2003 to October 2010, patients receiving percutaneous coronary intervention (PCI) with either 1G or 2G DES were retrospectively included. All patients underwent intravascular ultrasound (IVUS) at post-procedure and 8-12 months after PCI. A total of 281 patients (1G DES: 201 patients with 217 lesions and 2G DES: 80 patients with 88 lesions) were enrolled. The incidence of positive peri-stent vascular remodeling (PPVR) and late-acquired incomplete stent apposition (LAISA) were investigated by IVUS images. Major adverse cardiac events (MACE) up to 3 years were also evaluated. The lesion and the stent length were shorter, and the stent size was larger in the 2G DES group. The incidences of PPVR and LAISA were lower in the 2G DES group before and after propensity score matching. However, the incidence of 3-year MACE were not different between the two groups. Independent predictors for PPVR or LAISA were stent length and 1G DES implantation. These results suggested that biocompatible stent system in 2G DES might have reduced peri-stent vascular changes.

Keyword

Drug-eluting stents; Incomplete stent apposition; Intravascular ultrasound; Ischemic heart disease

MeSH Terms

Drug-Eluting Stents*
Humans
Incidence
Myocardial Ischemia
Percutaneous Coronary Intervention
Propensity Score
Retrospective Studies
Stents*
Ultrasonography*