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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 9, 2010

Sequelae of nonrheumatic myocarditis in children: a follow-up study

T Oda, K Hamamoto, H Morinaga

    Japanese Circulation Journal
    |October 1, 1980
    PubMed

    Insights

    Childhood myocarditis follow-up revealed persistent inflammation even after clinical recovery in 50% of patients. Some children experienced recurrences or developed chronic cardiomyopathy, highlighting the need for long-term monitoring.

    Area of Science:

    • Pediatric Cardiology
    • Cardiovascular Research
    • Inflammatory Heart Disease

    Background:

    • Childhood myocarditis can have long-term consequences.
    • Understanding the natural history of pediatric myocarditis is crucial for patient management.

    Purpose of the Study:

    • To evaluate the long-term outcomes of childhood myocarditis.
    • To assess the persistence of cardiac abnormalities and inflammatory markers post-diagnosis.

    Main Methods:

    • Follow-up study of 26 pediatric myocarditis patients for an average of 19.7 months.
    • Regular cardiological examinations including X-ray, ECG, PCG, MCG, and UCG.
    • Serum enzyme studies, focusing on LDH and CPK isozymes.

    Main Results:

    • Clinical and cardiological normalization occurred in 13 patients (50%).
    • Major residual abnormalities included CRBBB, VPC, abnormal Q waves, A-V block, and chronic nonobstructive cardiomyopathy (HNCM).
    • Enzyme abnormalities persisted in 12 patients, suggesting ongoing inflammation.

    Conclusions:

    • Childhood myocarditis may involve persistent subclinical inflammation for years.
    • Long-term cardiac monitoring is essential, as some patients develop chronic cardiomyopathy.
    • The relationship between myocarditis and cardiomyopathy warrants further investigation.

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