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Updated: Aug 3, 2026

High-frequency High-resolution Echocardiography: First Evidence on Non-invasive Repeated Measure of Myocardial Strain, Contractility, and Mitral Regurgitation in the Ischemia-reperfused Murine Heart
11:50

High-frequency High-resolution Echocardiography: First Evidence on Non-invasive Repeated Measure of Myocardial Strain, Contractility, and Mitral Regurgitation in the Ischemia-reperfused Murine Heart

Published on: July 10, 2010

[Doppler echocardiography in evaluating the functional state of the myocardium in ischemic heart disease]

V I Makolkin, A I Shatikhin, I G Alliluev

    Kardiologiia
    |September 1, 1979
    PubMed

    Insights

    Doppler-echocardiography and phasic systole analysis reveal that reduced myocardial contraction and relaxation rates correlate with decreased exercise tolerance in ischemic heart disease patients. This indicates worsening heart muscle function with reduced physical capacity.

    Area of Science:

    • Cardiology
    • Cardiovascular Physiology
    • Diagnostic Imaging

    Context:

    • Ischemic heart disease (IHD) affects millions globally, necessitating accurate diagnostic tools.
    • Assessing myocardial function and exercise tolerance is crucial for managing IHD.
    • Doppler-echocardiography and phasic systole analysis are non-invasive methods to evaluate cardiac performance.

    Purpose:

    • To compare Doppler-echocardiography and phasic systole analysis findings with exercise tolerance in patients with ischemic heart disease.
    • To investigate the relationship between myocardial contractility, relaxation, and exercise capacity.
    • To identify correlations between reduced cardiac function indices and physical limitations.

    Summary:

    • This study examined 121 ischemic heart disease patients (41-62 years), comparing Doppler-echocardiography and phasic systole analysis with bicycle ergometry results.
    • Findings indicate that absolute myocardial contraction and relaxation rates, along with ejection and relaxation indices, decrease as exercise tolerance declines.
    • Reduced exercise tolerance in IHD patients is paralleled by increasing signs of myocardial hypodynamia.

    Impact:

    • Provides objective evidence linking impaired myocardial mechanics to reduced exercise capacity in IHD.
    • Highlights the utility of Doppler-echocardiography and phasic systole analysis in assessing functional status in IHD.
    • Informs clinical decision-making regarding patient management and prognosis based on cardiac function and exercise tolerance.

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