Document Detail

Prediction of Long-Term Outcome by Measurement of Serum Concentration of Cardiac Troponins in Critically Ill Dogs with Systemic Inflammation.
MedLine Citation:
PMID:  25041343     Owner:  NLM     Status:  Publisher    
BACKGROUND: Myocardial injury, detected by cardiac troponin I and T (cTnI and cTnT), has been associated with long-term death in the noncardiac human intensive care unit (ICU).
HYPOTHESIS: Presence of myocardial injury predicts 1-year case fatality in critically ill dogs with systemic inflammation.
ANIMALS: Thirty-eight dogs with evidence of systemic inflammation and no primary cardiac disease.
METHODS: Prospective cohort study. In dogs admitted to the ICU with evidence of systemic inflammation, blood samples were obtained at ICU admission for measurement of cTnI and cTnT, and cTnI was measured once daily during ICU hospitalization. Receiver operating characteristic (ROC) curves were used to examine prognostic capacity of admission cTnI, admission cTnT, and peak cTnI concentrations.
RESULTS: One-year case fatality rate was 47% (18/38 dogs). Admission cTnI concentrations were (median [range]) 0.48 [0.004-141.50] ng/mL, and peak cTnI concentrations were 1.21 [0.021-141.50] ng/mL. Admission cTnT concentrations were 15 [<13-3744] ng/L. For each marker, non-survivors had significantly higher concentrations than survivors (P = .0082-.038). ROC analyses revealed areas under curves [95% CI] of 0.707 [0.537-0.843] for peak cTnI and 0.739 [0.571-0.867] for admission cTnT, respectively. At the optimal cut-off, concentrations were 1.17 ng/mL (peak cTnI) and 23 ng/L (admission cTnT), sensitivities were 72% and 72%, and specificities were 70% and 80%, respectively.
CONCLUSIONS AND CLINICAL IMPORTANCE: While peak cTnI and admission cTnT are significantly related to 1-year case fatality in critically ill dogs with systemic inflammation, low sensitivities and specificities prevent their prediction of long-term outcome in individual patients. Troponins might play a role in identification of dogs at long-term risk of death.
R Langhorn; V Thawley; M A Oyama; L G King; M C Machen; D J Trafny; J L Willesen; I Tarnow; M Kjelgaard-Hansen
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-7-16
Journal Detail:
Title:  Journal of veterinary internal medicine / American College of Veterinary Internal Medicine     Volume:  -     ISSN:  1939-1676     ISO Abbreviation:  J. Vet. Intern. Med.     Publication Date:  2014 Jul 
Date Detail:
Created Date:  2014-7-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8708660     Medline TA:  J Vet Intern Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2014 by the American College of Veterinary Internal Medicine.
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