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I. Effect of High and Low Viscosity Dextrans Upon Plasma and Red Cell Volumes

WILLIAM C. SHOEMAKER, MD

AMA Arch Surg. 1963;87(2):355-364.

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

Viscosity alterations have been invoked to explain certain phenomena associated with shock and other disturbed circulatory states. Unfortunately, methods for the measurement of the viscosity of blood in vivo are not yet available. However, in vitro measurements of the relative viscosity may be obtained by measuring the shear stress at various shear rates in samples of blood or plasma withdrawn from the patient or experimental animal. Alternatively, the effects of viscosity alterations may be studied by physiologic measurements before and after addition of highly viscous materials to a biological preparation. Sucrose is polymerized to dextrans of various molecular weights and viscosities by the bacteria, Leuconostoc mesenteroides¹; these dextrans may be fractionated to provide material of relatively uniform viscosity and molecular weight for clinical and experimental studies.² The physiologic effects of viscosity alterations produced by the administration of high or low viscosity dextran then may be observed and studied . . . [Full Text PDF of this Article]

Author Affiliations
CHICAGO

From the Department of Surgical Research, Hektoen Institute, Cook County Hospital, and the Department of Surgical Research, Michael Reese Hospital and Medical Center.

Footnotes
Presented at the 20th Annual Meeting of the Central Surgical Association, Chicago, Feb 21-23, 1963.

Supported in part by grants from the United States Public Health Service and by the Charles H. and Rachel M. Schwab Memorial Foundation.

Dextrans supplied by A. B. Pharmacia, Uppsula, Sweden.

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