Resumen

ARIAS, M. P et al. ENDOSCOPIC FINDINGS OF THE UPPER RESPIRATORY TRACT IN EQUINES OF THE METROPOLITAN POLICE FROM MEDELLÍN, COLOMBIA. Rev. Med. Vet. Zoot. [online]. 2013, vol.60, n.1, pp.23-31. ISSN 0120-2952.

The aim of the present study was to identify sub-clinical lesions ofdifferent originof the upper respiratory airwaysin a group of the Metropolitan Police equine population of Medellin city, Colombia. Medical records were inspected, horses that had respiratory problems during the last 6 months were discarded, and among healthy horses, 30 were selected. Endoscopic evaluations of upper respiratory tract were performed previous sedation with 10% xylazine and acepromazine maleate, at a dose of 0.5 mg/kg. It was examined the nasal cavity, nasopharynx and guttural pouches. When injury or sequelae were found, pictures were taken to describe macroscopically the found lesions. It was found that 7 animals showed injuries or subclinical respiratory conditions: 3 horses showed abundant clear mucus in the respiratory tract (10%), 1 horse presented whitish mucus in guttural pouches (3.33%), 1 horse (3.33%) presented canker sore on the floor of right guttural pouch in both compartments, 1 horse (3.33%) presented swelling at the entrance of both guttural pouches, 2 horses (6.66%) showed polyps y 1 horse (3.33%) had nodular lymphoid hyperplasia grade 2 accompanied by tracheal collapse grade 4 (3,33%). It was recommended to do endoscopic exploration of respiratory tract at least once a year in this equine population to prevent or reduce the incidence of upper respiratory diseases of greater gravity.

Palabras clave : endoscopy; upper respiratory airways; work horses; subclinical lesions.

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