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[Hypertrophic cardiomyopathy. Clinical and morphological comparisons]

A Ia Gudkova, M G Rybakova, L A Bokeria

    Arkhiv Patologii
    |September 25, 2012
    PubMed

    Insights

    This study compares myocardial morphology in children and adults with obstructive hypertrophic cardiomyopathy. Key risk factors for sudden cardiac death in adults include younger age and specific ventricular septum changes.

    Area of Science:

    • Cardiology
    • Pathology
    • Pediatrics

    Background:

    • Hypertrophic cardiomyopathy (HCM) is a genetic heart disease characterized by left ventricular hypertrophy.
    • Obstructive HCM presents with significant asymmetric septal hypertrophy, impacting cardiac function.
    • Understanding morphological differences between pediatric and adult HCM is crucial for risk stratification.

    Purpose of the Study:

    • To comparatively analyze myocardial morphology in pediatric and adult patients with obstructive hypertrophic cardiomyopathy.
    • To identify specific morphological features associated with sudden cardiac death risk in adults with obstructive HCM.

    Main Methods:

    • Comparative analysis of myocardial tissue samples from pediatric and adult obstructive HCM patients.
    • Histopathological examination focusing on ventricular septum (VS) morphology, including stromal changes.
    • Correlation of morphological findings with clinical data, including sudden death events.

    Main Results:

    • Significant asymmetric left ventricular hypertrophy, particularly of the ventricular septum (VS), was observed in all analyzed cases.
    • In adults with obstructive HCM, younger age (<45 years) was associated with increased sudden death risk.
    • Stromal enlargement in the right VS, near the endocardium, emerged as a critical risk indicator in adult obstructive HCM.

    Conclusions:

    • Myocardial morphology in obstructive hypertrophic cardiomyopathy differs between children and adults.
    • Specific VS morphological characteristics, such as stromal enlargement, are vital for assessing sudden cardiac death risk in adults.
    • These findings aid in tailoring management strategies for patients with obstructive HCM.

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