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  • Title: Blood viscosity in man following decompression: correlations wiht hematocrit and venous gas emboli.
    Author: Neuman TS, Harris MG, Linaweaver PG.
    Journal: Aviat Space Environ Med; 1976 Aug; 47(8):803-7. PubMed ID: 949295.
    Abstract:
    Whole blood viscosities were measured in U.S. Navy personnel before and after chamber compressions to 5 ATA (132FSW) and 7.4 ATA (210 FSW) by a new method described here. Bubble scores as a quantitative measure of venous gas emboli were determined during decompression and for 30 min thereafter. Hematocrit was measured both before and after each dive. There were five cases of decompression sickness in the two groups. No significant changes in whole blood viscosity, or hematocrit, were noted either in the group that was affected by decompression sickness or in all of the subjects taken as a group. No correlations between total bubble score and changes in viscosity or hematocrit could be made. These results imply that no major changes in viscosity occur in the usual forms of decompression sickness encountered in human beings.
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