Severely Circumferentially Calcified Neointima as a New Cause of Undilatable In-Stent Restenosis

<div>Coronary angiography and corresponding OCT image after PCB and DES implantation. (a) Angiography showed residual stenosis at the newly stented site. (b) OCT image of the lesion treated with PCB. (c) Ununiformed dilatation of newly implanted DES and dilation failure of calcified neointima. (d) Postdilatation with noncompliant balloon. White arrow: balloon indentation. OCT: optical coherence tomography, PCB: paclitaxel-coated balloon, DES: drug-eluting stent.</div>

Case Reports in Cardiology

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Figure 2: Severely Circumferentially Calcified Neointima as a New Cause of Undilatable In-Stent Restenosis 