Document Detail


Thromboelastography in healthy horses and horses with inflammatory gastrointestinal disorders and suspected coagulopathies.
MedLine Citation:
PMID:  20955299     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
OBJECTIVES: To evaluate the use of citrated recalcified (nonactivated) thromboelastography (TEG) in healthy horses and horses with colitis and suspected coagulopathies.
DESIGN: Prospective, observational study conducted between October 2007 and June 2009.
SETTING: Veterinary Teaching Hospital.
ANIMALS: Forty-five healthy adult horses and 12 sick adult horses with colitis and prolonged prothrombin time (PT) or activated partial thromboplastin time (aPTT).
INTERVENTIONS: None.
MEASUREMENTS AND MAIN RESULTS: Whole blood was collected on admission. Coagulation profile (PT, aPTT, platelet count, and fibrinogen concentration) and citrated recalcified whole blood TEG analysis (R-time [R], K-time [K], angle [α], maximum amplitude [MA], G value [G], lysis at 60 min [LY60]) were evaluated. Mean values (SD) for TEG parameters in healthy horses were: R=10.4 (3.1) minutes; K=3.5 (1.2) minutes; α=46.3 (11.0)°; MA=55.6 (5.1) mm; G=6,429 (1,341) dyn/cm², and LY60=5.1 (2.4)%. Mean coefficients of variation for intra-assay/interindividual variability in healthy horses were: R=4.7%/30.7%, K=4.8%/35.3%, α=4.4%/23.8%, MA=1.4%/9.3%, G=3.4%/20.8%, and LY60=13.1%/47.7%, respectively. Horses with colitis and prolonged PT and/or aPTT had longer mean values for R (P<0.001) and K (P<0.001), narrower mean α (P<0.001), decreased mean MA (P=0.001), and smaller mean G (P=0.02); changes consistent with hypocoagulability.
CONCLUSIONS: Citrated recalcified (nonactivated) TEG demonstrated changes consistent with hypocoagulability in horses with colitis that had preidentified coagulation abnormalities. This technique has high interindividual variability and low intra-assay variability. TEG may be useful for detecting hypocoagulable states in horses with colitis and suspected coagulopathies.
Authors:
Jose L Mendez-Angulo; Margaret C Mudge; Paulo Vilar-Saavedra; Nicole Stingle; C Guillermo Couto
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-09-28
Journal Detail:
Title:  Journal of veterinary emergency and critical care (San Antonio, Tex. : 2001)     Volume:  20     ISSN:  1476-4431     ISO Abbreviation:  J Vet Emerg Crit Care (San Antonio)     Publication Date:  2010 Oct 
Date Detail:
Created Date:  2010-10-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101152804     Medline TA:  J Vet Emerg Crit Care (San Antonio)     Country:  United States    
Other Details:
Languages:  eng     Pagination:  488-93     Citation Subset:  IM    
Copyright Information:
© Veterinary Emergency and Critical Care Society 2010.
Affiliation:
Department of Veterinary Clinical Sciences and Veterinary Teaching Hospital, The Ohio State University, Columbus, OH 43210, USA. v12meanj@uco.es
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