J Vet Sci.  2018 Nov;19(6):835-839. 10.4142/jvs.2018.19.6.835.

Comparison of two techniques for transpharyngeal endoscopic auditory tube diverticulotomy in the horse

  • 1Department of Clinical Sciences, Colorado State University, Fort Collins, CO 80523, USA. Eileen.Hackett@colostate.edu
  • 2Department of Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA.


Auditory tube diverticula, also known as guttural pouches, are naturally occurring dilations of the auditory tube in horses that communicate with the nasopharynx through a small ostium. Infection and select other conditions can result in inflammation and narrowing of the nasopharyngeal ostium, which prevents drainage of fluid or egress of air and can lead to persistent infection or guttural pouch tympany. Auditory tube diverticulotomy allows continuous egress from the auditory tube diverticula and is a feature of disease treatment in horses, in which medical treatment alone is not successful. Transpharyngeal endoscopic auditory tube diverticulotomy was performed using a diode laser either at a single dorsal pharyngeal recess location or bilaterally caudal to the nasopharyngeal ostium in 10 horse head specimens. Both methods resulted in clear communication between the nasopharynx and auditory tube diverticula. Diverticulotomy performed in the dorsal pharyngeal recess required less laser energy and activation time and had a shorter surgical duration than diverticulotomy performed caudal to the nasopharyngeal ostium. Further study related to the clinical application of both techniques is warranted.


diode lasers; empyema; endoscopic surgical procedure; laser surgery; veterinary surgery
Full Text Links
  • JVS
  • Twitter
  • Facebook
Copyright © 2020 by Korean Association of Medical Journal Editors. All rights reserved.     E-mail: koreamed@kamje.or.kr