Related Experiment Videos
[Systolic honk in mitral stenosis: a case report]
Journal of Cardiography
|December 1, 1985
Summary
A unique mitral systolic honk in mitral stenosis was identified, linked to anterior mitral leaflet bulging and valve fluttering. Treatment resolved the honk, correlating with reduced valve motion.
Area of Science:
- Cardiology
- Cardiac Auscultation
- Echocardiography
Background:
- Mitral stenosis can present with complex auscultatory findings.
- Understanding the genesis of abnormal heart sounds is crucial for diagnosis.
Observation:
- A 52-year-old woman with mitral stenosis presented with dyspnea and an unusual apical early systolic honk.
- Phonocardiography revealed a 115 Hz honk, varying with R-R intervals.
- Echocardiography showed mitral valve fluttering and anterior leaflet bulging into the left atrium.
Findings:
- The early systolic honk correlated with mitral valve and chordae tendineae fluttering.
- Honk intensity varied with preceding R-R intervals, suggesting a dynamic mechanism.
- Treatment with digitalis and diuretics abolished the honk in specific beats, linked to absent fluttering.
Implications:
- The honk's genesis is analogous to that in mitral valve prolapse, involving leaflet vibrations.
- Anterior mitral leaflet bulging may cause the observed vibrations and honk.
- This case highlights a specific auscultatory sign related to mitral valve dynamics in stenosis.