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Microbes Infect. 2008 Feb;10(2):203-7. doi: 10.1016/j.micinf.2007.11.002. Epub 2007 Nov 17.

Serum thyrotropin, thyroxine and free thyroxine concentrations as predictors of mortality in critically ill puppies with parvovirus infection: a model for human paediatric critical illness?

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  • 1Department of Companion Animal Clinical Studies, Faculty of Veterinary Science, University of Pretoria, Private bag X04, Onderstepoort, Pretoria 0110, South Africa.


This prospective case-controlled study investigated the role of the pituitary-thyroidal axis in the prediction of mortality in dogs. Serum thyrotropin, thyroxine and free thyroxine were measured at admission and daily until death or discharge in dogs ill with parvoviral diarrhoea. Serum thyroxine and free thyroxine in ill dogs were significantly lower than in controls and also significantly lower in nonsurvivors than in survivors on days 1-4. Serum thyrotropin at admission in ill dogs was similar to controls, but was significantly higher in nonsurvivors than in survivors. Thyrotropin concentrations became significantly lower in nonsurvivors vs survivors by day 4.

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