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HENRY D. McINTOSH, M.D.; JULIAN C. SLEEPER, M.D.; HOWARD K. THOMPSON, JR., M.D.; WILL C. SEALY, M.D.; W. GLENN YOUNG, JR., M.D.

AMA Arch Surg. 1961;82(1):74-87.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

Correct preoperative diagnosis is one of the prime requisites of successful cardiovascular surgery. The diagnosis should be made with a minimum of cost, time-consuming diagnostic studies, and discomfort to the patient. Often simple techniques such as careful auscultation and phonocardiography will reveal characteristics of associated murmurs which in themselves may be diagnostic. An example is the classical murmur of a patent ductus arteriosus. This murmur is best heard in the first and second left intercostal spaces. It begins a short interval after the first sound, usually reaches maximal intensity in late systole, envelops the second sound, and continues well into diastole. The murmur is therefore classified as a continuous murmur. When the characteristic murmur is present and if the clinical findings are corroborative, extensive diagnostic studies may not be indicated. However, many patients with patent ductus do not exhibit such a typical murmur. Other cardiovascular defects may produce continuous murmurs . . . [Full Text PDF of this Article]

Author Affiliations
DURHAM, N.C.

Research Fellows, National Heart Institute, National Institutes of Health, U.S. Public Health Service (Dr. Sleeper, Dr. Thompson).

Footnotes
Submitted for publication June 21, 1960.

Presented in part before the Eighth Scientific Meeting of the International Cardiovascular Society, North American Chapter, Miami Beach, June 11, 1960.

These studies were supported in part by Research Grants H-1217 and H-TS 539 from the National Heart Institute of the National Institutes of Health, U.S. Public Health Service and Grants-in-Aid from the American and North Carolina Heart Association.

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