Document Detail

A periadventitial sirolimus-releasing mesh decreased intimal hyperplasia in a rabbit model.
MedLine Citation:
PMID:  21838409     Owner:  NLM     Status:  In-Data-Review    
Autologous vein grafts used as aortocoronary bypasses are often prone to intimal hyperplasia, which results in stenosis and occlusion of the vein. The aim of this study was to prevent intimal hyperplasia using a newly developed perivascular system with sustained release of sirolimus. This system of controlled drug release consists of a polyester mesh coated with a copolymer of L-lactic acid and epsilon-caprolactone that releases sirolimus. The mesh is intended for wrapping around the vein graft during surgery. The mesh releasing sirolimus was implanted in periadventitial position onto arteria carotis communis of rabbits, and neointimal hyperplasia was then assessed. We found that implanted sirolimus-releasing meshes reduced intima thickness by 47+/-10 % compared to a vein graft after 3 weeks. The pure polyester mesh decreased vein intima thickness by 35+/-9 %. Thus, our periadventitial system for controlled release of sirolimus prevented the development of intimal hyperplasia in autologous vein grafts in vivo in rabbits. A perivascularly applied mesh releasing sirolimus is a promising device for preventing stenosis of autologous vein grafts.
I Skalský; E Filová; O Szárszoi; M Pařízek; A Lytvynets; J Malušková; A Lodererová; E Brynda; V Lisá; Z Burdíková; M Capek; J Pirk; L Bačáková
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Physiological research / Academia Scientiarum Bohemoslovaca     Volume:  60     ISSN:  1802-9973     ISO Abbreviation:  Physiol Res     Publication Date:  2011 Aug 
Date Detail:
Created Date:  2011-08-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9112413     Medline TA:  Physiol Res     Country:  Czech Republic    
Other Details:
Languages:  eng     Pagination:  585-8     Citation Subset:  IM    
Department of Growth and Differentiation of Cell Populations, Institute of Physiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic.
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