Related Experiment Videos
Systolic honks in young children
The American Journal of Cardiology
|August 1, 1977
Summary
Loud systolic honks in children, along with mitral valve prolapse syndrome, are linked to mitral valve support defects. These sounds, including clicks and murmurs, vary with physiological changes.
Area of Science:
- Cardiology
- Pediatric Cardiology
- Cardiac Auscultation
Background:
- Mitral valve prolapse syndrome (MVPS) encompasses various auscultatory findings.
- Systolic sounds like clicks, murmurs, and honks are associated with MVPS.
Observation:
- Three children with loud systolic honks underwent noninvasive phonocardiography and echocardiography.
- The precordial honk was studied in relation to other systolic sounds.
Findings:
- The precordial honk is part of a continuum of auscultatory sounds in MVPS.
- These sounds result from defective mitral valve support, affecting leaflet function.
- Timing variations of these sounds correlate with physiological and pharmacological interventions.
Implications:
- Understanding the honk's origin enhances diagnosis of mitral valve prolapse.
- Variations in sound timing may reflect changes in left ventricular dimensions and prolapse onset.