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[The apex cardiogram in normal aged subjects].

L Bernardi, A Imperatori, F Soffiantino

    Giornale Italiano Di Cardiologia
    |August 1, 1984
    PubMed
    Summary
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    Older adults exhibit significant changes in diastolic function, with several apexcardiogram (ACG) indices differing markedly. Systolic function shows less age-related alteration, though the electromechanical interval lengthens in older individuals.

    Area of Science:

    • Cardiology
    • Gerontology
    • Biomedical Engineering

    Context:

    • Aging impacts cardiovascular function, necessitating detailed analysis of cardiac mechanics.
    • Apexcardiography (ACG) provides non-invasive insights into systolic and diastolic heart performance.
    • Understanding age-related changes in cardiac indices is crucial for geriatric cardiology.

    Purpose:

    • To investigate age-related differences in 17 apexcardiographic (ACG) indices of systolic and diastolic function.
    • To compare ACG parameters between healthy young adults and healthy older adults.
    • To identify specific ACG indices sensitive to the aging process.

    Summary:

    • The study analyzed 17 ACG indices in 20 young (mean age 23.6) and 25 older (mean age 74.5) healthy adults.

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  • Significant differences were observed in diastolic indices, with several (a/D, a/H, TART, electromechanical atrial time) being markedly higher or lower in the older group (p < 0.001).
  • Systolic indices showed fewer significant changes, except for a lengthened electromechanical ventricular interval (q-C) in older adults (p < 0.01).

    • Impact:

    • Highlights age-related alterations primarily in diastolic cardiac function as measured by ACG.
    • Suggests that specific ACG indices may serve as biomarkers for cardiovascular aging.
    • Provides a foundation for further research into the clinical implications of these age-dependent ACG changes.