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Descriptive analysis of longitudinal endoscopy for exercise induced pulmonary haemorrhage in Thoroughbred racehorses training and racing at the Hong Kong Jockey Club.
MedLine Citation:
PMID:  25055713     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
REASONS FOR PERFORMING STUDY: Exercise Induced Pulmonary Haemorrhage (EIPH) is reported as a performance limiting condition in racehorses yet few longitudinal studies characterising EIPH have been reported.
OBJECTIVES: To characterise EIPH during training and racing in the absence of prophylactic medication with furosemide among horses imported to Hong Kong during 2007-2012.
STUDY DESIGN: Retrospective descriptive study of clinical endoscopy, EIPH status, and racing records.
METHODS: Thoroughbred geldings (n = 822) imported from New Zealand (NZ) between 2007 and 2012 were retrospectively assigned to 4 groups: diagnosed with EIPH via endoscopy (EIPH+), graded using recognised criteria; observed with epistaxis (Epistaxis); free of EIPH on endoscopy (EIPH-); and those in which no endoscopy was performed.
RESULTS: The majority of horses (89%) were subject to endoscopy once or more (median 15, IQR 3-18). Of those undergoing endoscopy, 55% of horses were diagnosed EIPH+ which varied in severity. Few (4%) experienced epistaxis. EIPH+ was diagnosed most frequently (63%) after racing. There was no significant difference in the proportion of EIPH+ and EIPH- horses that raced. Racing career longevity was longest for EIPH+ horses. The number of lifetime starts for EIPH+ horses was not significantly different to EIPH- horses. Days to retirement were longer for EIPH+ horses. Horses with mild EIPH+ (grades <3) were more likely to be retired for other causes whereas severe grades (≥3) were more likely to be retired for EIPH.
CONCLUSIONS: EIPH is common and varies in severity between individuals and between episodes in the same individual. There is no difference in the racing career longevity between EIPH+ and EIPH- horses trained and raced without furosemide.
Authors:
S A Preston; C M Riggs; M D Singleton; M H T Troedsson
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-7-23
Journal Detail:
Title:  Equine veterinary journal     Volume:  -     ISSN:  2042-3306     ISO Abbreviation:  Equine Vet. J.     Publication Date:  2014 Jul 
Date Detail:
Created Date:  2014-7-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0173320     Medline TA:  Equine Vet J     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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This article is protected by copyright. All rights reserved.
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