After demonstrating last year that medical students greatly improved their stethoscope skills by listening repeatedly to heart sounds on their iPods, lead investigator Michael Barrett, M.D., clinical associate professor of medicine and cardiologist at Temple University School of Medicine and Hospital, set out to test the technique on practicing physicians.
During a single 90-minute session, 149 general internists listened 400 times to five common heart murmurs including aortic stenosis, aortic regurgitation, mitral stenosis, mitral regurgitation and innocent systolic murmur. Previous studies have found the average rate of correct heart sound identification in physicians is 40 percent. After the session, the average improved to 80 percent.
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