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Updated: May 7, 2025
A Murine Model of Stent Implantation in the Carotid Artery for the Study of Restenosis
Published on: May 14, 2013
Recent Advances in the Treatment of Coronary In-Stent Restenosis
Luca Sartore1, Mauro Gitto2, Angelo Oliva2
1Department of Cardiology, Bern University Hospital, Inselspital, CH-3010 Bern, Switzerland.
Insights
In-stent restenosis (ISR) is a major cause of stent failure. This review details ISR classification, mechanisms, and current/future treatment strategies, including intravascular imaging guidance.
Area of Science:
- Cardiology
- Interventional Cardiology
- Biomedical Engineering
Background:
- In-stent restenosis (ISR) is the primary reason for stent failure and repeat revascularization after percutaneous coronary interventions.
- Despite advancements in stent technology, ISR presents significant challenges, increasing patient morbidity and mortality.
- Intravascular imaging has become crucial for understanding ISR mechanisms and guiding treatment decisions.
Purpose of the Study:
- To classify and explain the mechanisms of ISR.
- To provide an updated review of evidence for various ISR treatment strategies.
- To propose a management algorithm and discuss future developments in ISR treatment.
Main Methods:
- Literature review of ISR classification, mechanisms, and treatment modalities.
- Analysis of current evidence supporting balloon angioplasty, specialized devices, drug-eluting stents, drug-coated balloons, and other therapies.
- Synthesis of information to develop a management algorithm and identify future research directions.
Main Results:
- ISR is characterized by neointimal hyperplasia and/or stent malapposition, with varying mechanisms.
- A broad spectrum of treatment options exists, ranging from balloon angioplasty to advanced devices and drug-eluting therapies.
- Intravascular imaging aids in accurate diagnosis and tailored treatment selection.
Conclusions:
- ISR remains a complex clinical problem requiring a multifaceted approach.
- The choice of treatment strategy should be guided by ISR mechanisms, lesion characteristics, and patient factors.
- Continued innovation in devices and imaging is essential for improving ISR management and patient outcomes.
Abstract:
In-stent restenosis (ISR) remains the predominant cause of stent failure and the most common indication for repeat revascularization. Despite technological advances in stent design, ISR continues to pose significant challenges, contributing to increased morbidity and mortality among patients undergoing percutaneous coronary interventions. In the last decade, intravascular imaging has emerged as an important method for identifying the mechanisms behind ISR and guiding its treatment. Treatment options for ISR have expanded to include balloon angioplasty, cutting or scoring balloons, intravascular lithotripsy, atheroablative devices, drug-eluting stents, drug-coated balloons, surgical revascularization, and intravascular brachytherapy. The aim of the current review is to describe the classification and mechanisms of ISR, provide a comprehensive and updated overview of the evidence supporting different treatment strategies, suggest a management algorithm, and present insights into future developments in the field.
