The Initial Vibrations of the First Heart Sound
- 1 May 1951
- journal article
- research article
- Published by Wolters Kluwer Health in Circulation
- Vol. 3 (5), 730-732
- https://doi.org/10.1161/01.cir.3.5.730
Abstract
The major component of the normal first heart sound is that due to valvular closure. Preceding this there occur low frequency, low amplitude vibrations commonly attributed to auricular systole. It has been shown in this study that such vibrations appear invariably even though the auricles are fibrillating, and in heart block when auricular systole is widely seperated from ventricular systole. It is concluded that the onset of ventricular contraction itself causes these vibrations through mechanisms unrelated to auricular contraction, and prior to the valvular component.Keywords
This publication has 5 references indexed in Scilit:
- THE DURATION OF NORMAL HEART SOUNDSHeart, 1949
- The graphic registration of the normal heart soundsAmerican Heart Journal, 1942
- Physiologic and physical laws that govern auscultation, and their clinical applicationAmerican Heart Journal, 1941
- The characteristics of normal heart sounds recorded by direct methodsAmerican Heart Journal, 1940
- MODE OF PRODUCTION OF THE FIRST HEART SOUNDArchives of Internal Medicine, 1933