Exercise-induced pulmonary hemorrhage in racing thoroughbreds: a preliminary study.

John Pascoe, G. L. Ferraro, J. H. Cannon, Rick Arthur, J. D. Wheat

Research output: Contribution to journalArticle

152 Citations (Scopus)

Abstract

Of 235 Thoroughbred racehorses examined with a flexible fiberoptic endoscope within 2 hours of racing to determine the frequency of exercise-induced pulmonary hemorrhage (EIPH), 103 (43.8%) had various degrees of hemorrhage in the tracheal lumen. Two of these horses (0.8%) subsequently had blood flow from the nostrils. Blood seemed to originate from the lung. Statistical analysis of frequency data for 191 horses which finished in 1st, 2nd, and 3rd places did not show any relationship between EIPH and horse's age, sex, or finishing position. However, a trend toward an increased frequency of EIPH with age was shown, by a greater proportion of horses 5 years and older having EIPH. This trend is thought to reflect the chronicity of the pulmonary lesions and an inability of the lung to repair damaged regions while training and racing continued. The efficacy of furosemide for the treatment of EIPH was questioned, since 30 of 56 furosemide-treated horses which were examined had evidence of pulmonary hemorrhage. Nineteen (8%) horses had visible functional abnormalities of the upper respiratory tract.

Original languageEnglish (US)
Pages (from-to)703-707
Number of pages5
JournalAmerican Journal of Veterinary Research
Volume42
Issue number5
StatePublished - May 1 1981
Externally publishedYes

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hemorrhage
exercise
lungs
Hemorrhage
Lung
Horses
horses
furosemide
Furosemide
endoscopes
Statistical Data Interpretation
racehorses
Endoscopes
respiratory system
lesions (animal)
Respiratory System
blood flow
finishing
statistical analysis
gender

ASJC Scopus subject areas

  • veterinary(all)

Cite this

Exercise-induced pulmonary hemorrhage in racing thoroughbreds : a preliminary study. / Pascoe, John; Ferraro, G. L.; Cannon, J. H.; Arthur, Rick; Wheat, J. D.

In: American Journal of Veterinary Research, Vol. 42, No. 5, 01.05.1981, p. 703-707.

Research output: Contribution to journalArticle

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