Mechanical atherothrombectomy improves endothelial function through plaque burden reduction in PAD
Christos Rammos1, Anna Manzke1, Julia Lortz1
1Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center Essen, University of Duisburg-Essen, Essen, Germany.
VASA. Zeitschrift Fur Gefasskrankheiten
|October 4, 2022
Summary
Mechanical atherothrombectomy (MATH) with drug-coated balloons (DCB) significantly improved endothelial function in peripheral artery disease (PAD) patients compared to DCB alone. MATH enhances vascular health by reducing plaque burden and calcification.
Area of Science:
- Cardiovascular Medicine
- Interventional Cardiology
- Vascular Biology
Background:
- Endothelial dysfunction is a key indicator of cardiovascular disease progression.
- Endovascular treatment is standard for symptomatic peripheral artery disease (PAD), impacting endothelial function.
- Mechanical atherothrombectomy (MATH) offers benefits for complex atherosclerotic and thrombotic lesions.
Purpose of the Study:
- To evaluate the impact of MATH on endothelial function in PAD patients.
- To elucidate the mechanisms underlying MATH's effect on vascular health.
- To compare MATH combined with drug-coated balloons (DCB) against DCB alone.
Main Methods:
- Flow-mediated dilation (FMD) assessed endothelial function pre- and post-intervention (6-month follow-up).
- Compared 15 PAD patients treated with MATH+DCB to 15 non-MATH controls.
- Intravascular ultrasound (IVUS) and virtual histology analyzed vascular structure and plaque composition in 20 patients.
Main Results:
- Both groups showed improved endothelial function post-treatment.
- MATH+DCB demonstrated superior improvement in target vessel endothelial function compared to DCB alone.
- IVUS revealed greater luminal area increase and plaque burden reduction with MATH; virtual histology showed favorable plaque composition changes.
Conclusions:
- MATH treatment, particularly with DCB, improves endothelial function more than DCB treatment alone.
- MATH enhances vascular function through plaque burden reduction, improved luminal gain, and decreased superficial calcification.
- MATH represents a promising interventional strategy for PAD management.
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