1. Novel Design of Drug Delivery in Stented Arteries: a Numerical Comparative Study
- Author
-
Mario Grassi, G Pontrelli, Gabriele Grassi, Luigi Galasso, Lorenzo Comel, Alessio Ferluga, Luciano Teresi, Grassi, M, Pontrelli, G, Teresi, Luciano, Grassi, G, Comel, L, Ferluga, A, Galasso, L., Grassi, Mario, G., Pontrelli, L., Teresi, Grassi, Gabriele, L., Comel, Ferluga, Alessio, and L., Galasso
- Subjects
Drug ,medicine.medical_specialty ,Percutaneous ,medicine.medical_treatment ,media_common.quotation_subject ,Finite Element Analysis ,arterial stenting ,Transluminal Angioplasty ,Angioplasty ,medicine ,Humans ,Computer Simulation ,mathematical modelling ,Angioplasty, Balloon, Coronary ,media_common ,Drug elution ,business.industry ,Applied Mathematics ,Models, Cardiovascular ,Drug-Eluting Stents ,General Medicine ,Surgery ,Computational Mathematics ,Drug concentration ,Coronary Occlusion ,Modeling and Simulation ,drug delivery ,Drug delivery ,finite elements ,Delivery system ,General Agricultural and Biological Sciences ,business ,Biomedical engineering - Abstract
Implantation of drug eluting stents following percutaneous transluminal angioplasty has revealed a well established technique for treating occlusions caused by the atherosclerotic plaque. However, due to the risk of vascular re-occlusion, other alternative therapeutic strategies of drug delivery are currently being investigated. Polymeric endoluminal pave stenting is an emerging technology for preventing blood erosion and for optimizing drug release. The classical and novel methodologies are compared through a mathematical model able to predict the evolution of the drug concentration in a cross-section of the wall. Though limited to an idealized configuration, the present model is shown to catch most of the relevant aspects of the drug dynamics in a delivery system. Results of numerical simulations shows that a bi-layer gel paved stenting guarantees a uniform drug elution and a prolonged perfusion of the tissues, and remains a promising and effective technique in drug delivery.
- Published
- 2009