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Related Experiment Videos

[Gradual coronary dilatation using double balloon catheters].

L Kappenberger, W Steinbrunn, R Tartini

    Schweizerische Medizinische Wochenschrift
    |November 6, 1982
    PubMed
    Summary

    A novel dual-balloon catheter effectively treats severe coronary stenoses (>80%) in percutaneous coronary angioplasty (PTCA). This innovative device significantly reduces stenosis and pressure gradients, improving outcomes for high-degree coronary artery disease.

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    Evaluation of ablation patterns using a biophysical model of atrial fibrillation.

    Annals of biomedical engineering·2005

    Area of Science:

    • Cardiovascular Medicine
    • Interventional Cardiology
    • Medical Device Development

    Context:

    • Severe coronary stenoses (>80%) pose significant challenges for percutaneous coronary angioplasty (PTCA).
    • Conventional small catheters may struggle to navigate and effectively treat these high-grade lesions.
    • There is a need for advanced devices to manage complex coronary artery disease.

    Purpose:

    • To develop and evaluate a novel catheter with a very small tip diameter and in-line dual balloons for treating high-degree coronary stenoses.
    • To assess the efficacy of this new instrument in reducing stenosis severity and trans-lesional pressure gradients.
    • To determine the safety and feasibility of using this device in challenging PTCA cases.

    Summary:

    • A new catheter featuring a small tip and two sequentially arranged balloons was developed.
    • In 9 patients with severe coronary stenoses (average 89%), successful angioplasty was achieved, reducing stenosis to 22%.
    • The trans-lesional pressure gradient decreased from 58 mm Hg to 11 mm Hg post-procedure, demonstrating significant hemodynamic improvement.

    Impact:

    • The developed dual-balloon catheter demonstrates clear advantages for treating high-degree coronary stenoses.
    • This innovation offers a promising solution for complex interventional cardiology procedures.
    • Cautious application of this device can lead to improved patient outcomes in challenging PTCA cases.

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