Physicians with more experience are better able to detect a third heart sound that is an indicator of heart disease, according to a study on stethoscope accuracy in cardiac patients at UCSF Medical Center.
Greater experience in auscultation-- listening to body sounds with a stethoscope-- provides better outcomes in detecting pathologic heart disorders, underscoring the importance of skilled instruction in the use of a stethoscope, the researchers said. Their findings appear in the March 27, 2006, edition of The Archives of Internal Medicine.
The third heart sound, known as S3, is a low-pitched vibration that occurs in early diastole, a phase in the hearts pumping cycle characterized by the rhythmic relaxation and dilatation of the heart chambers. While present in children and adolescents, the sound normally diminishes in adulthood.
Vanessa deGier | EurekAlert!
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