Peri-stent contrast staining post-everolimus eluting stent deployment disappeared in a very short duration

Excerpt

A 74-year-old man with diabetes, dyslipidemia, hypertension, and a current smoking habit was referred to our hospital due to exertional chest oppression. He underwent coronary angiography (CAG) with a diagnosis of stable angina. Angiography revealed a chronic total-occluded (CTO) lesion in the right coronary artery (RCA). Percutaneous coronary intervention was selected after a discussion with surgeons. The CTO lesion in the RCA was treated with two everolimus-eluting stents (Xience Alpine, Abbott vascular, Illinois, USA). A 2.75 × 23 mm stent was deployed distally, and a 3.5 × 33 mm stent was deployed proximally, and the deployed stents overlapped. After the implantation of these stents, good coronary blood restoration was confirmed. Follow-up angiography 7 months after the initial procedure revealed a peri-stent contrast staining (PSS) image at the proximal portion of the proximal stent (Fig. 1C, C’). Additional optical coherence tomography (OCT) was performed and OCT revealed a well-apposed stent strut and a hollow-like area behind it (depth was about 2.0 mm). Dual antiplatelet therapy was maintained for preventing stent thrombosis. Repeat follow-up CAG was performed 13 months after the initial procedure. Repeat follow-up CAG revealed prominent improvement in the PSS image (Fig. 1D, D’). Additional OCT also revealed the disappearance of the hollow area and positive remodeling of the proximal vessel.

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