New Approach to Heart Sound Screening in Children by Analog-Digital Circuitry

In a new approach to analysis of heart-sound patterns by electronic computer circuitry (analog-digital computer), heart sounds of 708 children were analyzed by the unit's analyzing circuitry. Four hundred thirty-eight children had normal heart sounds and functional heart sounds according to the...

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Bibliographic Details
Published in:Public health reports (1896) 1965-09, Vol.80 (9), p.761-770
Main Authors: Durnin, R E, Glassner, H F, Jorgensen, C O, Fyler, D C
Format: Article
Language:English
Subjects:
Adolescent
Cardiology
Child
Child, Preschool
Children
Computers
Computers, Analog
Electrocardiography
Grade 1
Heart
Heart auscultation
Heart Auscultation - instrumentation
Heart Defects, Congenital - diagnosis
Heart diseases
Heart Diseases - diagnosis
Heart murmurs
Heart sounds
Humans
Mass Screening
Ventricular heart septal defects
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Summary:In a new approach to analysis of heart-sound patterns by electronic computer circuitry (analog-digital computer), heart sounds of 708 children were analyzed by the unit's analyzing circuitry. Four hundred thirty-eight children had normal heart sounds and functional heart sounds according to the cardiologist's interpretations. The unit recorded 5.9 percent false positives and 1 false-negative case. Two hundred seventy children had heart disease or suspicious murmurs. In this abnormal group, 2 percent false negatives were recorded by the analyzing circuitry. For four of the six false negatives, biphasic R or negative R was recorded by the ECG timing lead. Overall, 0.4 percent false negatives were recorded for the total group of 708. The initial study indicated that screening for abnormal or suspicious heart sounds by means of an analog-digital computer is possible. Good correlation was noted between the cardiologist's interpretation and computer analysis of specially programed modalities of analysis, namely systole, diastole, and splitting of the second sound.
ISSN:0094-6214
DOI:10.2307/4592533