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Left ventricular dysfunction--bedside Valsalva manoeuvre

M J Zema, B Restivo, T Sos

    British Heart Journal
    |November 1, 1980
    PubMed
    Summary
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    Bedside arterial pressure responses during the Valsalva manoeuvre offer a valuable, non-invasive method for assessing left ventricular function. This technique surpasses traditional diagnostic signs in estimating cardiac health.

    Area of Science:

    • Cardiology
    • Physiology
    • Diagnostic Medicine

    Background:

    • Left ventricular dysfunction is a critical indicator of cardiac health.
    • Accurate assessment of left ventricular function is essential for patient management.
    • Traditional diagnostic methods have limitations in sensitivity and specificity.

    Purpose of the Study:

    • To evaluate the utility of sphygmomanometrically determined arterial pressure responses during the Valsalva manoeuvre for detecting left ventricular dysfunction.
    • To compare the sensitivity, specificity, and predictive accuracy of this bedside method with standard diagnostic signs, including chest X-ray.

    Main Methods:

    • Thirty-seven patients undergoing cardiac catheterisation were assessed.
    • Bedside physical examination, including the Valsalva manoeuvre, was performed.

    Related Experiment Videos

  • Arterial pressure responses were measured sphygmomanometrically.

    • Main Results:

    • In patients not on beta-blockade, three distinct arterial pressure responses correlated with left ventricular ejection fraction and end-diastolic pressure.
    • The systolic arterial pressure overshoot height was directly related to ejection fraction and inversely to end-diastolic pressure.
    • The Valsalva manoeuvre arterial pressure response provided a semiquantitative estimate of left ventricular function.

    Conclusions:

    • The Valsalva manoeuvre arterial pressure response is a reliable bedside indicator of left ventricular function.
    • This method is superior to standard diagnostic signs, including chest X-ray, in assessing cardiac function.
    • Non-invasive assessment of left ventricular function can be achieved through this technique.