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The Relationship Between Right Atrial Pressure and Blood Volume
RICHARD E. HUGHES, M.D.;
GEORGE J. MAGOVERN, M.D.
AMA Arch Surg. 1959;79(2):238-243.
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Introduction
Present clinical criteria for detecting alterations in blood volume in postoperative patients are inadequate. Laboratory studies to support suspected findings also leave much to be desired. Blood volume studies using radioactive substances and dilution techniques approximate most accurately the existing state at a particular unit of time but they do not determine the rate of replacement, rate of withdrawal, or effectiveness of such therapy except as judged by repeat blood volume or reevaluation and interpretation of clinical signs. It is the purpose of this study to determine the efficacy of continuous monitoring of right atrial pressure in the detection of blood volume changes as previously reported in the experimental animal.1,2
Methods
Twenty-five consecutive thoracotomy patients were studied with regard to their cardiovascular status, including frequent preoperative and postoperative blood volumes, measurement of hourly urine output, blood pressure, respirations, pulse rate, and clinical evaluation of each patient during the
. . . [Full Text PDF of this Article]
Author Affiliations
Pittsburgh
From the Department of Surgery, Division of Thoracic Surgery, University of Pittsburgh, School of Medicine.
Footnotes
Submitted for publication Feb. 27, 1959.
This work was supported by grants from the Western Pennsylvania Heart Association.
Read at the 16th Annual Meeting of the Central Surgical Association, Montreal, Feb. 20, 1959.
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