Acquired peri-stent evaginations in a second generation durable polymer drug eluting stent

Abstract

Hypersensitivity reaction towards the stent polymer resulting in formation of evaginations has been detected predominantly after treatment by the first generation drug eluting stents. This case shows that despite the use of more biocompatible polymers in second generation drug eluting stents there will still be patients developing adverse vessel wall reactions consistent with a hypersensitivity reaction towards the implanted stent.

Keywords: Drug eluting stent; Optical coherence tomography; Peri-stent evagination formation.