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Updated: Feb 3, 2026
04:30
A Murine Model of Stent Implantation in the Carotid Artery for the Study of Restenosis
Published on: May 14, 2013
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Calcified neoatherosclerosis causing in-stent restenosis: prevalence, predictors, and implications
Marcos Garcia-Guimaraes1,2, Paula Antuña1,2, Ramon Maruri-Sanchez1,2
1Cardiology Department.
Coronary Artery Disease
|November 1, 2018
Summary
Calcified neoatherosclerosis (cNA) is a significant cause of in-stent restenosis (ISR), particularly late-onset ISR. This condition is linked to longer time since stent implantation and lack of statin or ACEi/ARB therapy, leading to poorer outcomes.
Area of Science:
- Cardiovascular Research
- Interventional Cardiology
- Biomedical Imaging
Background:
- Neoatherosclerosis is a primary driver of in-stent restenosis (ISR).
- Optical coherence tomography (OCT) reveals distinct morphologic patterns of ISR, including calcified neoatherosclerosis (cNA).
Purpose of the Study:
- To determine the prevalence, predictors, and implications of cNA as a cause of ISR.
Main Methods:
- OCT evaluation of 81 ISR lesions in 75 patients before reintervention.
- Analysis of patient demographics, medical history, and treatment regimens.
- Assessment of angiographic and OCT results post-reintervention.
Main Results:
- Calcified neoatherosclerosis (cNA) was the predominant ISR pattern in 16% of lesions, all presenting as very-late ISR (>3 years).
- Patients with cNA were older and less frequently received statins or ACEi/ARB therapy.
- Absence of statin or ACEi/ARB treatment and longer time to ISR independently predicted cNA.
- ISR lesions with cNA showed poorer angiographic and OCT results after reintervention.
Conclusions:
- Calcified neoatherosclerosis (cNA) underlies a significant proportion of ISR cases, particularly late-onset ISR.
- cNA is associated with specific patient characteristics and medication history, including lack of statin or ACEi/ARB use.
- The presence of cNA is linked to less favorable outcomes following reintervention.
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