Heterogeneous Arterial Healing in Patients Following Paclitaxel-Eluting Stent Implantation. Comparison With Sirolimus-Eluting Stents

36Citations
Citations of this article
14Readers
Mendeley users who have this article in their library.

Abstract

Objectives: We angioscopically compared paclitaxel-eluting stents (PES) and sirolimus-eluting stents (SES) to explore differences in arterial healing. Background: Drug-eluting stents may demonstrate different arterial healing processes. Methods: Angioscopy was performed 9 ± 2 months after 30 PES and 36 SES were implanted initially in the native coronary artery. Heterogeneity of the neointimal coverage (NIC) as well as the dominant grade was examined. Neointimal coverage was defined as follows: grade 0 = fully visible struts; grade 1 = struts bulged into the lumen, but covered; grade 2 = embedded, but translucent struts; grade 3 = invisible struts. Heterogeneity was judged when the NIC grade variation ≥1. Thrombi and yellow plaques (YP) were also explored. Results: In-stent late loss (0.44 ± 0.44 mm vs. 0.13 ± 0.33 mm; p < 0.0001) and dominant NIC grade (1.8 ± 1.1 vs. 1.3 ± 0.7; p = 0.02) were greater in PES than in SES. Of PES, 48% showed the heterogeneity of 1 grade; 26% showed that of 2 grades. Of SES, 53% showed homogeneous coverage; the remaining SES showed the heterogeneity of 1 grade; and 72% showed dominant grade 1. Thrombi were more common in PES than in SES (43% vs. 19%; p = 0.04). Both stents commonly revealed YP (83% vs. 78%; p = 0.76). Conclusions: NIC was more heterogeneous in PES, associated with a higher incidence of thrombi. Homogeneous NIC may be an important factor for competent arterial healing. © 2009 American College of Cardiology Foundation.

Author supplied keywords

Cite

CITATION STYLE

APA

Awata, M., Nanto, S., Uematsu, M., Morozumi, T., Watanabe, T., Onishi, T., … Nagata, S. (2009). Heterogeneous Arterial Healing in Patients Following Paclitaxel-Eluting Stent Implantation. Comparison With Sirolimus-Eluting Stents. JACC: Cardiovascular Interventions, 2(5), 453–458. https://doi.org/10.1016/j.jcin.2009.03.005

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free