Development of a Novel Prohealing Stent Designed to Deliver Sirolimus From a Biodegradable Abluminal Matrix - Circulation -Optical Coherence Tomography News

Development of a Novel Prohealing Stent Designed to Deliver Sirolimus From a Biodegradable Abluminal Matrix

Circulation Jun 15 2010 Cardiology

Background— We aimed to demonstrate that, by separating endothelial progenitor cell capture from sirolimus delivery through the application of drug to the abluminal surface of the stent, the degree of endothelialization can be enhanced. Methods and Results— Stainless steel R Stents, with biodegradable SynBiosys polymer coating with sirolimus abluminally applied and surface modified with anti-CD34 antibody were prepared at 2 dosages (low-dose sirolimus [LD-Combo, 2.5 µg sirolimus/mm] and full-dose sirolimus [Combo, 5 µg sirolimus/mm). These Combo stents and the Cypher stent (10 µg sirolimus/mm) were deployed in 98 normal porcine arteries and harvested for pharmacokinetic analysis ...
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