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Dynamic ventrorostral displacement of the dorsal laryngeal mucosa in horses.
Vet Rec. 2013 May 11; 172(19):501.VR

Abstract

The objectives of this report were to describe the occurrence and features of dynamic ventrorostral displacement of the dorsal laryngeal mucosa (VRDDLM) in a group of Thoroughbred horses presented for investigation of poor performance and/or abnormal respiratory noise. Records from 600, dynamic, endoscopic examinations of the upper respiratory tract of horses were reviewed. Horses with VRDDLM were identified as those in which the dorsal laryngeal mucosa progressively obscured the interarytenoid notch and dorsoaxial portion of the corniculate processes of the arytenoid cartilages during high-speed exercise. The condition was recognised in 12 horses. Concurrent abnormalities of the respiratory tract of eight horses were also identified and included, axial deviation of the aryepiglottic folds, vocal cord prolapse, unilateral and bilateral ventromedial luxation of the apex of the corniculate process of the arytenoid cartilage, and intermittent dorsal displacement of the soft palate. VRDDLM is a rare abnormality of the upper portion of the respiratory tract of horses that may be associated with abnormal respiratory noise and potentially poor performance. The significance of the condition is not known, but the presence of this condition in combination with other, obstructive diseases of the equine airway warrants further investigation.

Authors+Show Affiliations

Weipers Centre Equine Hospital, School of Veterinary Medicine, University of Glasgow, 464 Bearsden Road, Glasgow, G61 1QH, Scotland, UK.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Case Reports
Journal Article

Language

eng

PubMed ID

23559426

Citation

Pollock, P J., et al. "Dynamic Ventrorostral Displacement of the Dorsal Laryngeal Mucosa in Horses." The Veterinary Record, vol. 172, no. 19, 2013, p. 501.
Pollock PJ, Kelly PG, Reardon RJ, et al. Dynamic ventrorostral displacement of the dorsal laryngeal mucosa in horses. Vet Rec. 2013;172(19):501.
Pollock, P. J., Kelly, P. G., Reardon, R. J., & Kelly, G. M. (2013). Dynamic ventrorostral displacement of the dorsal laryngeal mucosa in horses. The Veterinary Record, 172(19), 501. https://doi.org/10.1136/vr.101319
Pollock PJ, et al. Dynamic Ventrorostral Displacement of the Dorsal Laryngeal Mucosa in Horses. Vet Rec. 2013 May 11;172(19):501. PubMed PMID: 23559426.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Dynamic ventrorostral displacement of the dorsal laryngeal mucosa in horses. AU - Pollock,P J, AU - Kelly,P G, AU - Reardon,R J M, AU - Kelly,G M, Y1 - 2013/04/04/ PY - 2013/4/6/entrez PY - 2013/4/6/pubmed PY - 2013/7/31/medline SP - 501 EP - 501 JF - The Veterinary record JO - Vet Rec VL - 172 IS - 19 N2 - The objectives of this report were to describe the occurrence and features of dynamic ventrorostral displacement of the dorsal laryngeal mucosa (VRDDLM) in a group of Thoroughbred horses presented for investigation of poor performance and/or abnormal respiratory noise. Records from 600, dynamic, endoscopic examinations of the upper respiratory tract of horses were reviewed. Horses with VRDDLM were identified as those in which the dorsal laryngeal mucosa progressively obscured the interarytenoid notch and dorsoaxial portion of the corniculate processes of the arytenoid cartilages during high-speed exercise. The condition was recognised in 12 horses. Concurrent abnormalities of the respiratory tract of eight horses were also identified and included, axial deviation of the aryepiglottic folds, vocal cord prolapse, unilateral and bilateral ventromedial luxation of the apex of the corniculate process of the arytenoid cartilage, and intermittent dorsal displacement of the soft palate. VRDDLM is a rare abnormality of the upper portion of the respiratory tract of horses that may be associated with abnormal respiratory noise and potentially poor performance. The significance of the condition is not known, but the presence of this condition in combination with other, obstructive diseases of the equine airway warrants further investigation. SN - 2042-7670 UR - https://www.unboundmedicine.com/medline/citation/23559426/Dynamic_ventrorostral_displacement_of_the_dorsal_laryngeal_mucosa_in_horses_ L2 - https://veterinaryrecord.bmj.com/lookup/pmidlookup?view=long&pmid=23559426 DB - PRIME DP - Unbound Medicine ER -