Calcified plaque modification during percutaneous coronary revascularization

Area of Science:

• Cardiology
• Interventional Cardiology
• Biomedical Engineering

Background:

• Severe coronary calcification significantly impairs outcomes after percutaneous coronary intervention (PCI).
• It is linked to suboptimal stent implantation, increasing risks of in-stent restenosis and thrombosis.
• This association persists even with modern drug-eluting stents, posing long-term clinical hazards.

Purpose of the Study:

• To review current plaque modification technologies for severe coronary calcification.
• To discuss the role of intravascular imaging in guiding these interventions.
• To provide insights into the optimal use of these technologies based on recent data.

Main Methods:

• Review of existing literature on coronary calcification and plaque modification techniques.
• Analysis of recent mechanistic and clinical data on calcium-modifying technologies.
• Emphasis on the importance of intravascular imaging for treatment selection and sequencing.

Main Results:

• Various technologies exist to modify calcified plaque, including specialized balloons, atherectomy devices, and intravascular lithotripsy.
• Intravascular imaging is crucial for assessing calcification extent and guiding technology selection.
• Limited large-scale randomized trials exist, leaving the comparative safety and effectiveness of these modalities poorly defined.

Conclusions:

• Effective modification of severe coronary calcification is essential for optimal PCI outcomes.
• Intravascular imaging plays a critical role in guiding the selection and application of plaque modification strategies.
• Further comparative trials are needed to define the relative benefits and risks of different calcium-modifying technologies.