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Evaluation of a screening program for heart disease

G M Matanoski, M M Henderson, O C Stine

    American Journal of Public Health
    |July 1, 1977
    PubMed
    Summary
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    The Phono Cardio Scan identified few cases of heart disease in elementary students, with limited treatment initiated. Most referred children already had known heart conditions, questioning the screening program's effectiveness.

    Area of Science:

    • Pediatric Cardiology
    • Public Health Screening
    • Diagnostic Technology Evaluation

    Background:

    • Early detection of pediatric heart disease is crucial for timely intervention.
    • Screening programs aim to identify asymptomatic or undiagnosed cardiac conditions in children.
    • The Phono Cardio Scan is a non-invasive device used for preliminary cardiac assessment.

    Purpose of the Study:

    • To evaluate the effectiveness of the Phono Cardio Scan in a large-scale elementary school screening program.
    • To assess the yield of new diagnoses and subsequent medical treatments resulting from the screening.
    • To identify potential limitations and variability in the screening process.

    Main Methods:

    • A screening program involving 18,872 elementary school children in Baltimore, Maryland.

    Related Experiment Videos

  • Utilized the Phono Cardio Scan for initial cardiac assessment.
  • Referral of children with abnormal findings to cardiologists for further evaluation.

    • Main Results:

    • Few new cases of heart disease were discovered through the screening.
    • Only one child received medical treatment directly attributed to the program.
    • The majority of referred children had pre-existing, known cardiac conditions.
    • Significant variability was observed in the performance of the Phono Cardio Scan and participating centers.
    • Potential low sensitivity of the Phono Cardio Scan was noted, consistent with other studies.

    Conclusions:

    • The Phono Cardio Scan screening program demonstrated limited effectiveness in detecting new cases of pediatric heart disease.
    • The high proportion of referred children with known conditions suggests the need to re-evaluate screening criteria and diagnostic tool performance.
    • Variability in machine and center performance highlights challenges in standardization and reliability for widespread implementation.
    • Further research is warranted to improve the sensitivity and specificity of non-invasive screening tools for pediatric cardiac conditions.