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Evaluation of the Sequence of Changes in Cardiac Output and Derived Calculations

William C. Shoemaker, MD; Kenneth J. Printen, MD; Joseph J. Amato, MD; David O. Monson, MD; Joseph S. Carey, MD; Kathleen O'Connor, RN

AMA Arch Surg. 1967;95(3):492-499.

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

THE CARDIOVASCULAR derangements occurring with both hemorrhagic and traumatic shock were described over 20 years ago by Cournand, Richards and coworkers^1,2 as decreased cardiac output and increased peripheral resistance. Since then there has been a tendency in some circles to assume that shock, irrespective of the precipitating events, is associated with low cardiac output and high resistance. More recently, however, other workers^3-10 have described increased or no appreciable changes in cardiac output and decreased or no change in resistance in various types of clinical shock. The relatively small numbers of patients in the various reported series may account for these apparent discrepancies. An alternative explanation for these differences is that shock may represent a rather large waste basket of conditions, in which various factors play significant roles in producing one or more types of circulatory disturbances. Furthermore, it is entirely possible that patients who have sustained shock . . . [Full Text PDF of this Article]

Author Affiliations
Chicago

From the Department of Surgical Research, Division of Surgery, Hektoen Institute for Medical Research, Cook County Hospital, and the University of Illinois, Chicago.

Footnotes
Submitted for publication March 15, 1967.

Read before the 24th annual meeting of the Central Surgical Association, Pittsburgh, Feb 24, 1967.

Reprint requests to 627 S Wood St, Chicago 60612 (Dr. Shoemaker).

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