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Updated: Jul 7, 2026

A Magnetic Resonance Imaging-based Computational Protocol for Analysis of Plaque Morphology and Hemodynamics in Patients with Carotid Artery Stenosis
09:36

A Magnetic Resonance Imaging-based Computational Protocol for Analysis of Plaque Morphology and Hemodynamics in Patients with Carotid Artery Stenosis

Published on: August 12, 2025

Risk factors and neurological consequences of syncopes induced by internal carotid artery angioplasty

Eva Martinez-Fernandez, Fernando Boza Garcia, Jose R Gonzalez-Marcos

    Stroke
    |March 1, 2008
    PubMed

    Insights

    Syncope after carotid angioplasty (CA) is linked to plaque length and location. However, this syncope does not increase the risk of stroke or death during the procedure.

    Area of Science:

    • Neurology
    • Cardiovascular Medicine
    • Interventional Cardiology

    Background:

    • Syncope and carotid sinus reactions (CSR) are common during carotid angioplasty (CA).
    • Understanding risk factors and neurological outcomes of CA-induced syncope is crucial.

    Purpose of the Study:

    • To investigate risk factors for syncope during CA.
    • To determine the neurological consequences of CA-induced syncope.

    Main Methods:

    • 359 patients undergoing CA were assessed.
    • Cerebrovascular reserve and continuous EEG monitoring were performed.
    • Impact of vascular risk factors, plaque characteristics, and procedural factors on CSR and syncope was analyzed.

    Main Results:

    • CSR occurred in 62.7% and syncope in 18.0% of procedures.
    • Syncope was associated with longer plaques, carotid bifurcation location, contralateral stenosis, and protection device use.
    • TIA was more frequent in syncopal patients, but stroke/death rates were similar.

    Conclusions:

    • Syncope during CA is more common with specific plaque characteristics (long, bifurcation location).
    • Syncope does not elevate periprocedural complication rates like stroke or death.
    Abstract

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