Analyze Diet
Journal of equine science2017; 28(2); 55-59; doi: 10.1294/jes.28.55

Association between exercise-induced pulmonary hemorrhage and inflammatory airway disease in polo ponies.

Abstract: The respiratory system is essential for health and high athletic performance in horses. Respiratory diseases have been recognized as having a major impact on training equine animals and are commonly cited as the second most common cause of wasted training time. Inflammatory airway disease (IAD) is an important cause of poor performance in young racehorses. Exercise-induced pulmonary hemorrhage (EIPH) is considered a major issue for the equine industry because of its high prevalence and association with reduced athletic performance. In Brazil, polo is a growing equestrian sport, but studies on it are still scarce. The aim of this study was to evaluate the occurrence of EIPH, the association between EIPH and IAD, and EIPH influence on the tracheal cytological profile of polo ponies. Thirty-seven horses regularly used for polo were included in this study. Endoscopic examination was performed every 30 to 90 min after practice, and tracheal lavage was performed after 18 to 24 hr. Sixteen animals (43.2%) presented a score of 0 for mucus in endoscopy; twelve animals (32.4%) presented a score for 1 and nine animals (24.3%) presented score 2 of mucus. IAD was characterized by tracheal cytology in 12 animals (32.4%). The occurrence of EIPH in this study was 29.7% (11/37). No significant difference was found in the cell types in tracheal cytology when EIPH-positive and EIPH-negative horses were compared. Polo ponies are affected by IAD and EIPH in relevant proportions, but there was no association between EIPH and tracheal cytological profile.
Publication Date: 2017-07-06 PubMed ID: 28721124PubMed Central: PMC5506450DOI: 10.1294/jes.28.55Google Scholar: Lookup
The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
  • Journal Article

Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

The study explores how exercise-induced pulmonary hemorrhage (EIPH) and inflammatory airway disease (IAD) affect polo horses, looking at the incidence of these conditions and their influence over tracheal cytological profiles.

Objective and Subject of Study

  • The purpose of this study was to evaluate the prevalence of Exercise-Induced Pulmonary Hemorrhage (EIPH) and Inflammatory Airway Disease (IAD) among polo horses in Brazil. The researchers sought to understand the impact of these conditions on horses’ respiratory systems, which are crucial for their athletic performance.
  • The team conducted its investigation on 37 polo horses, examining them after practice sessions and performing tracheal lavages, a process whereby fluid is injected into the trachea and then collected for examination.

Findings

  • Upon assessing the presence of mucus in the horses’ airways, it was found that 43.2% of the horses had a mucus score of 0, 32.4% had a score of 1, and 24.3% had a score of 2.
  • Tracheal cytology, a technique used to identify diseases in the trachea by studying the structure and function of cells, revealed the presence of IAD in 32.4% of the animals.
  • Notably, EIPH was found in 29.7% (11 out of the 37) of the horses.

Conclusion

  • In the study, no significant correlation was found between EIPH positive and EIPH negative horses when comparing their tracheal cytology.
  • While the study demonstrated that both IAD and EIPH affect a significant proportion of polo horses, it found no connection between these conditions and the horses’ tracheal cytological profile.
  • This research contributes to a better understanding of the respiratory diseases affecting polo horses, potentially guiding trainers in optimizing these horses’ health and performance.

Cite This Article

APA
da Silva KM, Otaka JNP, Gonçalves CAP, Silva EGA, de Alencar NX, Lessa DAB. (2017). Association between exercise-induced pulmonary hemorrhage and inflammatory airway disease in polo ponies. J Equine Sci, 28(2), 55-59. https://doi.org/10.1294/jes.28.55

Publication

ISSN: 1340-3516
NlmUniqueID: 9503751
Country: Japan
Language: English
Volume: 28
Issue: 2
Pages: 55-59

Researcher Affiliations

da Silva, Katia Moreira
  • Federal Fluminense University, Rio de Janeiro 24.230-340, Brazil.
Otaka, Juliana Nabuco Pereira
  • Federal Fluminense University, Rio de Janeiro 24.230-340, Brazil.
Gonçalves, Carlos Alexandre Paula
  • Federal Fluminense University, Rio de Janeiro 24.230-340, Brazil.
Silva, Estevão Grossi Aguiar
  • Federal Fluminense University, Rio de Janeiro 24.230-340, Brazil.
de Alencar, Nayro Xavier
  • Federal Fluminense University, Rio de Janeiro 24.230-340, Brazil.
Lessa, Daniel Augusto Barroso
  • Federal Fluminense University, Rio de Janeiro 24.230-340, Brazil.

References

This article includes 38 references
  1. Allen KJ, Tremaine WH, Franklin SH. Prevalence of inflammatory airway disease in national hunt horses referred for investigation of poor athletic performance.. Equine Vet J Suppl 2006 Aug;(36):529-34.
  2. Burrell MH, Wood JL, Whitwell KE, Chanter N, Mackintosh ME, Mumford JA. Respiratory disease in thoroughbred horses in training: the relationships between disease and viruses, bacteria and environment.. Vet Rec 1996 Sep 28;139(13):308-13.
    pubmed: 8893488doi: 10.1136/vr.139.13.308google scholar: lookup
  3. Burrell MH. Endoscopic and virological observations on respiratory disease in a group of young Thoroughbred horses in training.. Equine Vet J 1985 Mar;17(2):99-103.
  4. Chapman PS, Green C, Main JP, Taylor PM, Cunningham FM, Cook AJ, Marr CM. Retrospective study of the relationships between age, inflammation and the isolation of bacteria from the lower respiratory tract of thoroughbred horses.. Vet Rec 2000 Jan 22;146(4):91-5.
    pubmed: 10682693doi: 10.1136/vr.146.4.91google scholar: lookup
  5. Christley RM, Hodgson DR, Rose RJ, Wood JL, Reids SW, Whitear KG, Hodgson JL. A case-control study of respiratory disease in Thoroughbred racehorses in Sydney, Australia.. Equine Vet J 2001 May;33(3):256-64.
    pubmed: 11352347doi: 10.2746/042516401776249796google scholar: lookup
  6. Costa LR, Seahorn TL, Moore RM, Taylor HW, Gaunt SD, Beadle RE. Correlation of clinical score, intrapleural pressure, cytologic findings of bronchoalveolar fluid, and histopathologic lesions of pulmonary tissue in horses with summer pasture-associated obstructive pulmonary disease.. Am J Vet Res 2000 Feb;61(2):167-73.
    pubmed: 10685689doi: 10.2460/ajvr.2000.61.167google scholar: lookup
  7. Costa M.F.M., Thomassian A., Gomes T.S.. Study of exercise induced pulmonary haemorrhage (EIPH) in flat racing Thoroughbred horses.. R. Bras. Cien. Vet. 2004;11:89–91.
  8. Couëtil LL, Hoffman AM, Hodgson J, Buechner-Maxwell V, Viel L, Wood JL, Lavoie JP. Inflammatory airway disease of horses.. J Vet Intern Med 2007 Mar-Apr;21(2):356-61.
  9. Couëtil LL, Cardwell JM, Gerber V, Lavoie JP, Léguillette R, Richard EA. Inflammatory Airway Disease of Horses--Revised Consensus Statement.. J Vet Intern Med 2016 Mar-Apr;30(2):503-15.
    pmc: PMC4913592pubmed: 26806374doi: 10.1111/jvim.13824google scholar: lookup
  10. Derksen FJ, Brown CM, Sonea I, Darien BJ, Robinson NE. Comparison of transtracheal aspirate and bronchoalveolar lavage cytology in 50 horses with chronic lung disease.. Equine Vet J 1989 Jan;21(1):23-6.
  11. Dixon PM, Railton DI, McGorum BC. Equine pulmonary disease: a case control study of 300 referred cases. Part 3: Ancillary diagnostic findings.. Equine Vet J 1995 Nov;27(6):428-35.
  12. Doucet MY, Viel L. Clinical, radiographic, endoscopic, bronchoalveolar lavage and lung biopsy findings in horses with exercise-induced pulmonary hemorrhage.. Can Vet J 2002 Mar;43(3):195-202.
    pmc: PMC339202pubmed: 11901592
  13. Gerber V, Straub R, Marti E, Hauptman J, Herholz C, King M, Imhof A, Tahon L, Robinson NE. Endoscopic scoring of mucus quantity and quality: observer and horse variance and relationship to inflammation, mucus viscoelasticity and volume.. Equine Vet J 2004 Nov;36(7):576-82.
    pubmed: 15581321doi: 10.2746/0425164044864525google scholar: lookup
  14. Hegedüs R.M., Michima L.E.S., Souza V.R.C., Dutra G.H.P., Fernandes W.R., Coelho C.S.. Evaluation of tracheal wash of horses with exercise-induced pulmonary hemorrhage treated with furosemide.. Arq. Bras. Med. Vet. Zootec. 2007;59:527–529.
  15. Hodgson J.L., Hodgson D.R.. Inflammatory airway disease.. 2002.
  16. Hoffman AM. Bronchoalveolar lavage: sampling technique and guidelines for cytologic preparation and interpretation.. Vet Clin North Am Equine Pract 2008 Aug;24(2):423-35, vii-viii.
    pubmed: 18652963doi: 10.1016/j.cveq.2008.04.003google scholar: lookup
  17. Jorge M.L.L.A., Viscardi V., Silva K.M., Otaka J.N.P., Alencar N.X., Torres-Filho R.A., Lessa D.A.B.. Alkaline phosphatase activity in bronchoalveolar lavage of police horses in Rio de Janeiro State, Brazil.. Cienc. Rural 2014;44:92–96.
  18. Kusano K, Ishikawa Y, Seki K, Kusunose R. Characteristic of inflammatory airway disease in Japanese thoroughbred racehorses.. J Equine Sci 2008;19(2):25-9.
    pmc: PMC4013942pubmed: 24833952doi: 10.1294/jes.19.25google scholar: lookup
  19. Lessa D.A.B., Jorge M.L.L.A., Viana E.B., Alencar N.X., Fernandes W.R.. Evaluation of bronchoalveolar fluid of horses with inflammatory airway disease.. Braz. J. Vet. Res. Anim. Sci. 2011;48:123–130.
  20. Lessa D.A.B., Machado C.H., Duarte C.S., Wachholz L., Lima J.R.P.A., Fernandes W.R.. Lower respiratory tract diseases in riding horses in Rio de Janeiro.. Rev. Bras. Cien. Vet. 2005;12:77–83.
  21. McKane SA, Canfield PJ, Rose RJ. Equine bronchoalveolar lavage cytology: survey of thoroughbred racehorses in training.. Aust Vet J 1993 Nov;70(11):401-4.
  22. McKane SA, Slocombe RF. Experimental mild pulmonary inflammation promotes the development of exercise-induced pulmonary haemorrhage.. Equine Vet J Suppl 2010 Nov;(38):235-9.
  23. Michelotto PV Jr, Muehlmann LA, Zanatta AL, Bieberbach EWR, Kryczyk M, Fernandes LC, Nishiyama A. Pulmonary inflammation due to exercise-induced pulmonary haemorrhage in Thoroughbred colts during race training.. Vet J 2011 Nov;190(2):e3-e6.
    pubmed: 22108190doi: 10.1016/j.tvjl.2010.08.009google scholar: lookup
  24. Michelotto P.V., Jr, Lessa D.A.B., Silva K.M., Gawlowski K.S.R., Fernandes W.R.. The airway fluid analysis: methods and interpretation for the athletic horse.. Rev. Bras. Cien. Vet. 2013;20:1–5.
  25. Moran G., Carillo R., Campos B., Garcia C.. Endoscopic evaluation of exercise induced pulmonary hemorrhage in polo ponies.. Arch. Med. Vet. 2003;35:109–113.
  26. Newton JR, Wood JL. Evidence of an association between inflammatory airway disease and EIPH in young Thoroughbreds during training.. Equine Vet J Suppl 2002 Sep;(34):417-24.
  27. Otaka J.N.P., Silva K.M., Jorge M.L., Gonçalves C.A.P., Otaka D.Y., Lessa D.A.B.. Occurrence of pulmonary hemorrhage induced by exercise in polo horses in the city of Rio de Janeiro, R.J.. Arch. Vet. Sci. 2014;19:46–51.
  28. Pascoe JR, Ferraro GL, Cannon JH, Arthur RM, Wheat JD. Exercise-induced pulmonary hemorrhage in racing thoroughbreds: a preliminary study.. Am J Vet Res 1981 May;42(5):703-7.
    pubmed: 7258791
  29. Robinson N.E.. Inflammatory airway disease: defining the syndrome. Conclusions of the Havemeyer Workshop.. Equine Vet. Educ. 2003;15:61–63.
  30. Sad E.P., Alencar N.X., Viscardi V., Costa M.F.M., Hess T.M., Lessa D.A.B.. Cytology profile and age influence in the equine bronchoalveolar lavage in healthy and asymptomatic inflammatory airway disease.. Cienc. Rural 2013;43:452–455.
  31. . Beginner’s Guide to Polo.. 2017.
  32. Sullivan S, Hinchcliff K. Update on exercise-induced pulmonary hemorrhage.. Vet Clin North Am Equine Pract 2015 Apr;31(1):187-98.
    pubmed: 25770069doi: 10.1016/j.cveq.2014.11.011google scholar: lookup
  33. Sweeney CR, Humber KA, Roby KA. Cytologic findings of tracheobronchial aspirates from 66 thoroughbred racehorses.. Am J Vet Res 1992 Jul;53(7):1172-5.
    pubmed: 1497188
  34. West JB, Mathieu-Costello O. Stress failure of pulmonary capillaries as a mechanism for exercise induced pulmonary haemorrhage in the horse.. Equine Vet J 1994 Nov;26(6):441-7.
  35. Williams KJ, Derksen FJ, de Feijter-Rupp H, Pannirselvam RR, Steel CM, Robinson NE. Regional pulmonary veno-occlusion: a newly identified lesion of equine exercise-induced pulmonary hemorrhage.. Vet Pathol 2008 May;45(3):316-26.
    pubmed: 18487488doi: 10.1354/vp.45-3-316google scholar: lookup
  36. Wood JL, Newton JR, Chanter N, Mumford JA. Inflammatory airway disease, nasal discharge and respiratory infections in young British racehorses.. Equine Vet J 2005 May;37(3):236-42.
    pubmed: 15892233doi: 10.2746/0425164054530579google scholar: lookup
  37. Whitwell KE, Greet TR. Collection and evaluation of tracheobronchial washes in the horse.. Equine Vet J 1984 Nov;16(6):499-508.
  38. Zinkl J.G.. Lower respiratory tract.. 1992;pp.73–86.

Citations

This article has been cited 3 times.
  1. Lo Feudo CM, Stucchi L, Conturba B, Stancari G, Zucca E, Ferrucci F. Medical causes of poor performance and their associations with fitness in Standardbred racehorses.. J Vet Intern Med 2023 Jul-Aug;37(4):1514-1527.
    doi: 10.1111/jvim.16734pubmed: 37148147google scholar: lookup
  2. Mazan M. Equine exercise physiology-challenges to the respiratory system.. Anim Front 2022 Jun;12(3):15-24.
    doi: 10.1093/af/vfac035pubmed: 35711503google scholar: lookup
  3. Lo Feudo CM, Stucchi L, Alberti E, Stancari G, Conturba B, Zucca E, Ferrucci F. The Role of Thoracic Ultrasonography and Airway Endoscopy in the Diagnosis of Equine Asthma and Exercise-Induced Pulmonary Hemorrhage.. Vet Sci 2021 Nov 15;8(11).
    doi: 10.3390/vetsci8110276pubmed: 34822649google scholar: lookup