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The Journal of Thoracic and Cardiovascular Surgery, Vol 82, 45-48, Copyright © 1981 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association
J Paul, B Cornillon, J Baguet, G Dureau and J Belleville
Experimentally induced hypothermia (20 degrees C) for 60 minutes in dogs
provokes a significant decrease in the platelet count, which reverses
during subsequent rewarming, and the constant release of a heparin-like
factor, which reacts as a specific inhibitor of factor Xa. This phenomenon
is also rapidly reversible, and heparin values are not significantly
different from control levels after 90 minutes of rewarming. The mean
maximal concentration of heparin-like material is 0.54 U/ml, or about
double control levels. Its half-life is approximately 90 minutes. The level
of circulating antithrombin III was not modified during hypothermia and
rewarming.
ARTICLES
In vivo release of a heparin-like factor in dogs during profound hypothermia
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