Tags

Type your tag names separated by a space and hit enter

Characterisation of palatal dysfunction after laryngoplasty.
Equine Vet J. 2014 Jan; 46(1):60-3.EV

Abstract

REASONS FOR PERFORMING STUDY

Dorsal displacement of the soft palate (DDSP) in the horse has been previously described as intermittent, typically occurring at fast exercise; or persistent, seen at rest. Dorsal displacement of the soft palate has recently been reported following laryngoplasty (LP) and can be associated with continued poor performance and respiratory noise.

OBJECTIVES

The current study aimed to characterise the DDSP diagnosed post LP.

STUDY DESIGN

Cross-sectional study.

METHODS

Owners/trainers of horses undergoing LP at one institution over 6 years were contacted to determine the horse's progress and willingness for re-examination. The horses were examined at the rest, walk, trot and canter with an overground exercising endoscope. A GPS-equipped watch was carried to obtain maximal exercising speeds. Videos of horses with DDSP were reviewed to determine frequency and duration of DDSP and swallowing events at the various gaits.

RESULTS

Exercising endoscopy was performed in 41 of the 89 horses that had undergone LP. Nineteen of the 41 horses were diagnosed with DDSP at exercise, of which 7/41 also had DDSP at rest. No difference was detected in the percentage of total time spent displaced at each gait (P = 0.67), or in the frequency of new DDSP events per minute between each gait (P = 0.10), or in the frequency of swallowing events per minute between each gait (P = 0.52). The majority of horses displaced at various times throughout each gait. Dorsal displacement of the soft palate was most commonly solely induced spontaneously and always corrected with a swallow. The maximum speed achieved was 8.3 m/s.

CONCLUSIONS

Dorsal displacement of the soft palate was common following LP and it appears to be induced at slower gaits than DDSP that has previously been described. It also occurred at various times throughout each gait and did not always occur persistently at rest.

POTENTIAL RELEVANCE

These findings suggest horses undergoing LP may be more prone to DDSP and further investigations into the aetiology of post LP palatal dysfunction are warranted.

Authors+Show Affiliations

Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Roslin, Midlothian, UK.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23662892

Citation

Barnett, T P., et al. "Characterisation of Palatal Dysfunction After Laryngoplasty." Equine Veterinary Journal, vol. 46, no. 1, 2014, pp. 60-3.
Barnett TP, O'Leary JM, Dixon PM, et al. Characterisation of palatal dysfunction after laryngoplasty. Equine Vet J. 2014;46(1):60-3.
Barnett, T. P., O'Leary, J. M., Dixon, P. M., & Barakzai, S. Z. (2014). Characterisation of palatal dysfunction after laryngoplasty. Equine Veterinary Journal, 46(1), 60-3. https://doi.org/10.1111/evj.12081
Barnett TP, et al. Characterisation of Palatal Dysfunction After Laryngoplasty. Equine Vet J. 2014;46(1):60-3. PubMed PMID: 23662892.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Characterisation of palatal dysfunction after laryngoplasty. AU - Barnett,T P, AU - O'Leary,J M, AU - Dixon,P M, AU - Barakzai,S Z, Y1 - 2013/06/28/ PY - 2012/08/08/received PY - 2013/02/22/accepted PY - 2013/5/14/entrez PY - 2013/5/15/pubmed PY - 2016/5/27/medline KW - endoscopy KW - horse KW - laryngoplasty KW - noise KW - palate SP - 60 EP - 3 JF - Equine veterinary journal JO - Equine Vet J VL - 46 IS - 1 N2 - REASONS FOR PERFORMING STUDY: Dorsal displacement of the soft palate (DDSP) in the horse has been previously described as intermittent, typically occurring at fast exercise; or persistent, seen at rest. Dorsal displacement of the soft palate has recently been reported following laryngoplasty (LP) and can be associated with continued poor performance and respiratory noise. OBJECTIVES: The current study aimed to characterise the DDSP diagnosed post LP. STUDY DESIGN: Cross-sectional study. METHODS: Owners/trainers of horses undergoing LP at one institution over 6 years were contacted to determine the horse's progress and willingness for re-examination. The horses were examined at the rest, walk, trot and canter with an overground exercising endoscope. A GPS-equipped watch was carried to obtain maximal exercising speeds. Videos of horses with DDSP were reviewed to determine frequency and duration of DDSP and swallowing events at the various gaits. RESULTS: Exercising endoscopy was performed in 41 of the 89 horses that had undergone LP. Nineteen of the 41 horses were diagnosed with DDSP at exercise, of which 7/41 also had DDSP at rest. No difference was detected in the percentage of total time spent displaced at each gait (P = 0.67), or in the frequency of new DDSP events per minute between each gait (P = 0.10), or in the frequency of swallowing events per minute between each gait (P = 0.52). The majority of horses displaced at various times throughout each gait. Dorsal displacement of the soft palate was most commonly solely induced spontaneously and always corrected with a swallow. The maximum speed achieved was 8.3 m/s. CONCLUSIONS: Dorsal displacement of the soft palate was common following LP and it appears to be induced at slower gaits than DDSP that has previously been described. It also occurred at various times throughout each gait and did not always occur persistently at rest. POTENTIAL RELEVANCE: These findings suggest horses undergoing LP may be more prone to DDSP and further investigations into the aetiology of post LP palatal dysfunction are warranted. SN - 2042-3306 UR - https://www.unboundmedicine.com/medline/citation/23662892/Characterisation_of_palatal_dysfunction_after_laryngoplasty_ L2 - https://doi.org/10.1111/evj.12081 DB - PRIME DP - Unbound Medicine ER -