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EFFECT OF CERTAIN THERAPEUTIC MEASURES ON THE CARDIAC OUTPUT OF PATIENTS WITH CONGESTIVE HEART FAILURE

HARRY RESNIK Jr., M.D.; BEN FRIEDMAN, M.D.; T. R. HARRISON, M.D.
Arch Intern Med (Chic). 1935;56(5):891-903. doi:10.1001/archinte.1935.00170030059006.
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An investigation of the change in the amount of blood pumped by the failing heart following the institution of a therapeutic procedure may be of interest from two points of view: (a) from the standpoint of the pathogenesis of congestive heart failure and (b) from the standpoint of the mechanism whereby a given procedure produces improvement. The present study was undertaken with the idea of elucidating the first of these problems, but certain information concerning the second question has also been obtained.

METHOD  The subject—in the basal state—was brought to the laboratory in a wheelchair. The consumption of oxygen was determined in duplicate by analyses of samples of the expired air which was collected in a Tissot spirometer. The arteriovenous oxygen difference was measured by the three sample acetylene technic. Two rebreathings were usually done, the samples being procured at approximately twenty, twenty-four and twenty-eight seconds in the first, and

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The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
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