Abstract
Hearing atrial sounds is unusual during atrial flutter and rare during atrial fibrillation. We report a patient with hypertrophic cardiomyopathy and coarse atrial fibrillation in whom atrial sounds were recorded phonocardiographically during endocardial atrial electrography. The atrial sounds were recorded phonocardiographically at the same periodicity as the atrial electrograms, and both had beat-to-beat variability in morphology, amplitude, and cycle length. These observations suggest that atrial sounds originate from the atrium and that organized electrical and mechanical activity occur in some types of atrial fibrillation. (Texas Heart Institute Journal 1991;18:67-8)
Keywords: Atrial fibrillation
Keywords: atrial sounds
Keywords: endocardial electrography
Keywords: phonocardiography
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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
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