Journal
BIOMATERIALS
Volume 128, Issue -, Pages 56-68Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biomaterials.2017.02.028
Keywords
Perivascular administration; Periadventitial administration; Intimal hyperplasia; Wrap; Mesh; Cuff
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Perivascular medical devices and perivascular drug delivery systems are conceived for local application around a blood vessel during open vascular surgery. These systems provide mechanical support and/or pharmacological activity for the prevention of intimal hyperplasia following vessel injury. Despite abundant reports in the literature and numerous clinical trials, no efficient perivascular treatment is available. In this review, the existing perivascular medical devices and perivascular drug delivery systems, such as polymeric gels, meshes, sheaths, wraps, matrices, and metal meshes, are jointly evaluated. The key criteria for the design of an ideal perivascular system are identified. Perivascular treatments should have mechanical specifications that ensure system localization, prolonged retention and adequate vascular constriction. From the data gathered, it appears that a drug is necessary to increase the efficacy of these systems. As such, the release kinetics of pharmacological agents should match the development of the pathology: A successful perivascular system must combine these optimized pharmacological and mechanical properties to be efficient. (C) 2017 Elsevier Ltd. All rights reserved.
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