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Murine Surgical Model of Topical Elastase Induced Descending Thoracic Aortic Aneurysm
08:33

Murine Surgical Model of Topical Elastase Induced Descending Thoracic Aortic Aneurysm

Published on: August 24, 2019

[Ascending aortic aneurysm with mucoid infiltration of the media and aortic leaflets. Pathogenic hypotheses- surgical

M Berkman, E Farkas, J Tabet

    Archives Des Maladies Du Coeur Et Des Vaisseaux
    |August 1, 1979
    PubMed

    Insights

    Aneurysms of the ascending aorta with mucoid infiltration require complete replacement of affected tissues. Incomplete repair risks serious recurrence, especially involving the sinus of Valsalva, necessitating total aortic replacement.

    Area of Science:

    • Cardiovascular Surgery
    • Histopathology
    • Aortic Diseases

    Background:

    • Aneurysms of the ascending aorta with mucoid infiltration of the media and leaflets present unique theoretical and practical challenges.
    • Histological changes, including mucoid infiltration, are not exclusively indicative of Marfan's syndrome, complicating diagnosis and treatment planning.

    Observation:

    • Two cases of ascending aortic aneurysms with mucoid infiltration are presented to illustrate the complexities.
    • The association with Marfan's syndrome is noted as inconsistent, highlighting the need for broader diagnostic considerations.

    Findings:

    • Incomplete surgical replacement of affected aortic tissues carries a significant risk of recurrence, particularly when the sinus of Valsalva is involved.
    • Histological examination of excised tissues, utilizing specific mucopolysaccharide stains, is crucial for accurate diagnosis and management.
    • Total replacement of the ascending aorta, combined with aortic valve replacement and coronary artery reimplantation, is generally the indicated surgical approach.

    Implications:

    • Routine histological analysis of excised aortic tissue is recommended for all patients presenting with these aneurysms.
    • Close postoperative follow-up is essential for patients undergoing surgery for ascending aortic aneurysms with mucoid infiltration, especially those with partial tissue replacement.
    • The findings underscore the importance of comprehensive surgical strategies and vigilant monitoring to prevent recurrence and improve patient outcomes in complex aortic pathologies.

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