Golledge, J., and Campbell, J.H. (2005) Local therapy for restenosis. European Journal of Vascular and Endovascular Surgery, 30 (6). pp. 571-572.

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Abstract

[Extract] The durability of all forms of open or percutaneous revascularisation is affected by the development of localised stenoses within the bypass graft or at the site of endarterectomy, stent or angioplasty. The reported incidence of significant restenosis has varied dependent on initial procedure, site, case mix and definition, but is greatest during the first 12 months (Table 1). Over the last 40 years tens of thousands of studies have been carried out in an effort to understand or reduce the incidence of restenosis, with two major mechanisms identified as being responsible for the luminal narrowing, namely intimal hyperplasia and constrictive remodelling. Intimal hyperplasia is provoked by changes in the balance of local cytokines controlling vascular smooth muscle cell (VSMC) proliferation, apoptosis and migration, brought about by endothelial or medial injury and alterations in haemodynamic forces. The overall vessel diameter reduction that occurs in constrictive remodelling is less well defined, but likely involves matrix turnover under the control of proteinases, particularly metalloproteinases.

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