RESUMO
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.
Assuntos
Hemorragia/veterinária , Doenças dos Cavalos/etiologia , Pneumopatias/veterinária , Esforço Físico , Fatores Etários , Animais , Feminino , Furosemida/uso terapêutico , Hemorragia/tratamento farmacológico , Hemorragia/etiologia , Doenças dos Cavalos/tratamento farmacológico , Cavalos , Pneumopatias/tratamento farmacológico , Pneumopatias/etiologia , Masculino , Fatores SexuaisRESUMO
Development of cysts in the equine paranasal sinuses is probably a congenital disease; however, signs may not appear for several years. In 4 cases, clinical signs were observed when fluid accumulation within the cysts resulted in nasal discharge or facial swelling, or when secondary infection occurred. Treatment required surgical removal of the lining membrane and other involved tissues. Postoperative care included lavage of the sinuses and systemic antibiotic therapy.