Evaluation of two methods for topical application of contrast medium to the pharyngeal and laryngeal region of horses.

摘要: OBJECTIVE To determine the pharyngeal and laryngeal distribution of radiopaque contrast medium administered orally or via nasopharyngeal catheter to standing horses. ANIMALS 5 healthy adult PROCEDURES A crossover study was conducted. Radiopaque (12 mL) each horse. Pharyngeal determined by examination radiographs obtained immediately after administration medium, compared with those before administration. Regional graded. Endoscopic nasopharynx, laryngopharynx, larynx performed confirm radiographic results. RESULTS Examination revealed in nasopharynx (n = 5), oropharynx (2), laryngopharynx (3), (5) oral 4) (1) confirmed findings found be sensitive for detection whereby rates were higher both methods. CONCLUSIONS AND CLINICAL RELEVANCE Results suggested that medication use a will result topical within including dorsal surface soft palate, larynx, although should evaluated horses clinical airway disease these findings. Oral did not consistently detectable but could used selected conditions (eg, palatitis).