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Related Experiment Videos

Left ventricular function studies in constrictive pericarditis

E Sekino, S Suzuki, T Momokawa

    The Japanese Journal of Surgery
    |September 1, 1978
    PubMed
    Summary

    Constrictive pericarditis impairs left ventricular function, reducing key metrics like ejection fraction. Mean Vcf reduction indicates left ventricular dysfunction, valuable for assessing postoperative prognosis in these patients.

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    Area of Science:

    • Cardiology
    • Cardiac Physiology

    Background:

    • Constrictive pericarditis restricts diastolic filling and can impair systolic function.
    • Left ventricular (LV) function is crucial for overall cardiac output and patient outcomes.

    Purpose of the Study:

    • To evaluate left ventricular (LV) function in patients with constrictive pericarditis.
    • To assess the utility of mean Vcf in determining LV dysfunction and postoperative prognosis.

    Main Methods:

    • Intracardiac pressure measurements and cineangiocardiographic films were used.
    • Analysis included left ventricular end-diastolic volume (LVEDV), left ventricular end-systolic volume (LVESV), ejection fraction (EF), stroke work index (SWI), and circumferential fiber shortening.
    • Mean Vcf was calculated to assess myocardial shortening velocity.

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    Main Results:

    • Patients exhibited significantly reduced LVEDV, LVESV, EF, SWI, and circumferential shortening.
    • A reduction in mean Vcf was observed, suggesting impaired myocardial contractility.
    • These functional deficits correlate with the degree of pericardial restriction.

    Conclusions:

    • Constrictive pericarditis leads to significant left ventricular (LV) dysfunction.
    • Reduced mean Vcf is a key indicator of LV dysfunction in these patients.
    • Mean Vcf evaluation is valuable for predicting postoperative outcomes.