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Related Experiment Videos

The Ionescu-Shiley valve: a solution for the small aortic root.

J M Revuelta, R Garcia-Rinaldi, R H Johnston

    The Journal of Thoracic and Cardiovascular Surgery
    |August 1, 1984
    PubMed
    Summary
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    The Ionescu-Shiley pericardial xenograft valve offers a viable solution for aortic valve replacement in patients with small aortic roots, demonstrating good long-term outcomes and low complication rates.

    Area of Science:

    • Cardiovascular Surgery
    • Biomaterials Science
    • Medical Device Technology

    Background:

    • Aortic valve replacement in patients with small aortic roots presents technical challenges and risks of residual transvalvular gradients.
    • Small aortic annuli necessitate specialized valve solutions to ensure optimal patient outcomes.

    Purpose of the Study:

    • To evaluate the efficacy and safety of the Ionescu-Shiley pericardial xenograft valve in patients with small aortic roots (≤21 mm).
    • To assess the long-term clinical and hemodynamic performance of this valve in a specific patient cohort.

    Main Methods:

    • A retrospective review of 35 patients who underwent aortic valve replacement using Ionescu-Shiley pericardial xenograft valves between 1977 and 1983.
    • Analysis of preoperative functional status, intraoperative valve sizes, hospital mortality, late mortality, and long-term follow-up data including complications and hemodynamic evaluations.

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    Main Results:

    • Four hospital deaths (11.4%) occurred due to sepsis or low cardiac output; no late deaths were recorded.
    • Of 31 survivors, 78% were asymptomatic at long-term follow-up with no thromboembolism, endocarditis, or valve failure.
    • Hemodynamic evaluation showed acceptable transvalvular gradients for 19 mm (15.1 mm Hg) and 21 mm (10.8 mm Hg) valves.

    Conclusions:

    • The Ionescu-Shiley pericardial xenograft valve is a safe and effective option for aortic valve replacement in patients with small aortic roots.
    • This xenograft valve provides favorable long-term clinical and hemodynamic results, minimizing complications in this challenging patient group.