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Veterinary Medicine International
Volume 2010, Article ID 945789, 6 pages
http://dx.doi.org/10.4061/2010/945789
Research Article

Thromboelastometric Profiles of Horses Affected by Exercise-Induced Pulmonary Hemorrhages

Unit of General Pathology and Parasitology, Department of Veterinary Pathology, Hygiene and Public Health, University of Milan, Via Celoria 10, 20133 Milano, Italy

Received 13 July 2010; Revised 31 August 2010; Accepted 18 September 2010

Academic Editor: Mary M. Christopher

Copyright © 2010 Alessia Giordano et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Exercise-induced pulmonary hemorrhage (EIPH) commonly occurs in race horses. Thromboelastometry (TEM) investigates the whole hemostatic process by evaluating the viscoelastic properties of the blood clot from its formation to fibrinolysis. The aim of this study was to assess whether horses with EIPH have abnormal thromboelastometric profiles. Intrinsic and extrinsic pathways, fibrinogen activity and fibrinolysis were investigated by TEM before and after the race in negative controls and in horses on which EIPH was confirmed by bronchoscopy. Compared with controls, horses with EIPH had an increased coagulability in both pre- and postrace samplings, especially for the intrinsic pathway and for the fibinrolytic activity. These results suggest that coagulation is preactivated in horses prone to develop EIPH, possibly due to recent or recurrent hemorrhage.