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Related Experiment Videos

[New, non-invasive index for recognition of the early stages of cardiac insufficiency].

W Rentsch

    Zeitschrift Fur Die Gesamte Innere Medizin Und Ihre Grenzgebiete
    |January 1, 1975
    PubMed
    Summary
    This summary is machine-generated.

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    [Is the stress period a useful parameter for rate adapted heart stimulation?].

    Biomedizinische Technik. Biomedical engineering·1989

    A new pre-ejection index, derived from measuring the pre-ejection period (PEP) in different postures, effectively identifies early signs of heart failure by detecting reduced left ventricular contractile adaptability.

    Area of Science:

    • Cardiology
    • Physiology

    Context:

    • Assessing left ventricular contractile adaptability is crucial for early heart failure diagnosis.
    • Traditional methods for evaluating contractility can be invasive or complex.

    Purpose:

    • To introduce a novel, non-invasive index for diagnosing early-stage heart failure.
    • To establish the efficacy of the pre-ejection index in differentiating healthy individuals from those with latent heart insufficiency.

    Summary:

    • The study presents a new 'pre-ejection index' based on measuring the pre-ejection period (PEP) in both upright and supine positions under resting conditions.
    • Measurements from 30 normal subjects and 30 patients with latent heart insufficiency demonstrated a highly significant separation between the two groups.
    • A new thermistor pulse transducer facilitates easy application, with suggestions for single-channel ECG determination and digital data acquisition.

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    Impact:

    • This non-invasive index offers a promising tool for early detection of heart failure, potentially improving patient outcomes.
    • The described methodology and technology enable simpler and more accessible screening for cardiac dysfunction.