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Updated: Mar 14, 2026

Imaging In-Stent Restenosis: An Inexpensive, Reliable, and Rapid Preclinical Model
Published on: September 14, 2009
Early restenose in a polymer-free Biolimus A9-coated stent (BioFreedom): A case report based on optical coherence
Julia Ellert1, Lisbeth Antonsen1, Lisette Okkels Jensen1
1Department of Cardiology, Odense University Hospital, Odense, Denmark.
Abstract:
An 81-year-old male patient with a severe de novo coronary artery stenosis in the proximal left anterior descending artery was treated with a BioFreedom stent (3.5×11mm), three months later, the patient was re-admitted with chest pain and slightly increased troponin. The angiogram showed a significant in-stent restenosis in the recently treated lesion. Optical coherence tomography revealed a fully expanded stent without areas of incomplete stent apposition. Severe immature neointimal hyperplasia without formation of thrombosis was visualized, causing a severe in-stent restenosis. An underlying plaque rupture within the mid-proximal part of the in-stent restenosis was evident.

