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(Circulation. 1956;13:510.)
© 1956 American Heart Association, Inc.

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The Significance of the Intensity and Time of Appearance of the Korotkoff Sounds in Auricular Fibrillation

SIMON RODBARD M.D.¹ JACK MARGOLIS M.D.¹

¹ From the Cardiovascular Department, Medical Research Institute, Michael Reese Hospital, Chicago, Ill.

Aside from their value in the indirect determination of the blood pressure the sounds at the brachial artery provide other valuable clinical information. Their value in blood pressure determination in auricular fibrillation generally has been found to be limited. By using a simple technic involving the counting of the brachial-artery-sound deficit, a satisfactory, repeatable method of blood pressure estimation is achieved in such patients with marked pulse rate irregularities. Other information, including a rough estimation of left ventricular stroke output, pulse wave force and velocity, are also appraised by analysis of these bruits.