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A TELEROENTGENOGRAPHIC STUDY, WITH OBSERVATIONS ON THE EFFECT CF DIGITALIS THERAPY

ROBERT L. LEVY, M.D.

Arch Intern Med. 1923;32(3):359-385.

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

Precise information concerning the behavior of the heart in pneumonia is essential for the rational management of the circulation in this disease. Whether, in the course of acute pneumonitis, the cardiovascular system is functionally impaired, is still a matter of controversy. Direct methods for the estimation of myocardial function are still wanting. But alterations in the size of the heart furnish evidence, although indirect, of changes in the physical state of the myocardium, and in particular of variations in the length of heart muscle fiber. Such changes, as will be pointed out, have been shown by investigation to be associated with alterations in the volume output of the ventricles; and on the maintenance of ventricular volume output depends, in large measure, the efficiency of the circulation as a whole.

The present investigation was designed to obtain, by the roentgenographic method, at relatively frequent intervals, accurate records of the size of . . . [Full Text PDF of this Article]

Author Affiliations
NEW YORK

From the Hospital of the Rockefeller Institute for Medical Research.

Footnotes
A preliminary report of this work was read before the American Society for Clinical Investigation, May 9, 1921.

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