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Cardiomyopathies characterized by evidence of resistance to left ventricular inflow

B J Maron, L Long, J H Moller

    Catheterization and Cardiovascular Diagnosis
    |January 1, 1980
    PubMed

    Insights

    Restrictive cardiomyopathy can cause left ventricular inflow obstruction. One case without identifiable cardiac disease broadens the understanding of this condition.

    Area of Science:

    • Cardiology
    • Pathology

    Background:

    • Restrictive cardiomyopathy is a condition characterized by impaired ventricular filling.
    • Left ventricular inflow obstruction is a key feature that can be caused by various cardiac pathologies.

    Purpose of the Study:

    • To investigate cases of restrictive cardiomyopathy with left ventricular inflow obstruction.
    • To expand the understanding of the underlying causes of restrictive cardiomyopathy.

    Main Methods:

    • Case study analysis of four patients (one child, three adults) with restrictive cardiomyopathy.
    • Pathological examination of cardiac tissue in relevant cases.

    Main Results:

    • Three cases showed evidence of hypertrophic cardiomyopathy with asymmetric septal hypertrophy.
    • One case presented with left ventricular inflow restriction without identifiable cardiac disease.

    Conclusions:

    • Hypertrophic cardiomyopathy is a common cause of restrictive cardiomyopathy with inflow obstruction.
    • The spectrum of restrictive cardiomyopathy is broader than previously recognized, encompassing cases without apparent cardiac pathology.

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