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Circulation. 1958;18:82-91

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(Circulation. 1958;18:82.)
© 1958 American Heart Association, Inc.

Movements and Forces of the Human Heart

V. Precordial Movements in Relation to Atrial Contraction

T. R. HARRISON M.D.1; JOHN A. LOWDER M.D.1; LLOYD L. HEFNER M.D.1; DONALD C. HARRISON M.D.1

1 From the Department of Medicine, Medical College of Alabama, Birmingham, Ala.

Precordial movements starting after P and before Q have been studied. Right atrial contraction appears to cause a forward-rightward motion and left atrial contraction a backward movement of the precordium. The latter is exaggerated in most patients with mitral stenosis and in some patients with myocardial failure.






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