B. Segal, M.D.; W. Likoff, M.D., F.A.C.P.; D. Mason, M.D. (Assoc.)
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Recent methods of recording the intensity, frequency, and timing of heart sounds and murmurs have facilitated our understanding of clinical auscultation. Through a reasonable knowledge of the basic principles of auscultation, it is possible to achieve a remarkable accuracy in the anatomic and pathophysiologic diagnosis of congenital and acquired heart disease.
Normal splitting of the first heart sound can be differentiated from abnormal sounds of atrial diastolic gallops and ejection sounds. The analysis of splitting of the second heart sound into aortic and pulmonary components has proved helpful in the clinical diagnosis of bundle branch block, atrial septal defect, pulmonary
Segal B, Likoff W, Mason D. Phonocardiography: A Valuable Aid to Clinical Diagnosis.. Ann Intern Med. ;56:670–671. doi: 10.7326/0003-4819-56-4-670_4
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Published: Ann Intern Med. 1962;56(4):670-671.
Cardiac Diagnosis and Imaging, Cardiology.
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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