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The displaced equine soft palate as a source of abnormal respiratory noise during expiration.
Equine Vet J. 2004 Nov; 36(7):590-4.EV

Abstract

REASONS FOR PERFORMING STUDY

To develop the technique of respiratory sound analysis for the diagnosis of dorsal displacement of the equine soft palate.

OBJECTIVES

To show that 1) the displaced soft palate can spontaneously vibrate in the presence of expiratory airflow; 2) the observed frequency of vibration can be detected in respiratory sound recordings; and 3) the frequency of vibrations measured in cadaveric specimens are similar to those obtained from audio spectra in exercising horses with DDSP.

METHODS

Palatal movements and respiratory sounds were recorded from artificially ventilated cadaveric heads. The fundamental mode of palate vibrations calculated from high-speed videoendoscopic recordings was compared with frequencies detected in the audio spectra and with data collected from exercising horses with DDSP.

RESULTS

Palate vibrations occurred when air was blown through the trachea. The fundamental mode of vibrations was present in the audio spectra and was not significantly different from those recorded in vivo.

CONCLUSIONS

Vibrations of the soft palate are the probable source of expiratory sounds recorded in horses with DDSP.

POTENTIAL RELEVANCE

This study strengthens the case for the application of respiratory sound analysis in the diagnosis of DDSP in exercising horses.

Authors+Show Affiliations

Department of Anatomy, University of Bristol, Bristol BS2 8EJ, UK.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

15581323

Citation

Franklin, S H., et al. "The Displaced Equine Soft Palate as a Source of Abnormal Respiratory Noise During Expiration." Equine Veterinary Journal, vol. 36, no. 7, 2004, pp. 590-4.
Franklin SH, Price C, Burn JF. The displaced equine soft palate as a source of abnormal respiratory noise during expiration. Equine Vet J. 2004;36(7):590-4.
Franklin, S. H., Price, C., & Burn, J. F. (2004). The displaced equine soft palate as a source of abnormal respiratory noise during expiration. Equine Veterinary Journal, 36(7), 590-4.
Franklin SH, Price C, Burn JF. The Displaced Equine Soft Palate as a Source of Abnormal Respiratory Noise During Expiration. Equine Vet J. 2004;36(7):590-4. PubMed PMID: 15581323.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The displaced equine soft palate as a source of abnormal respiratory noise during expiration. AU - Franklin,S H, AU - Price,C, AU - Burn,J F, PY - 2004/12/8/pubmed PY - 2005/5/6/medline PY - 2004/12/8/entrez SP - 590 EP - 4 JF - Equine veterinary journal JO - Equine Vet J VL - 36 IS - 7 N2 - REASONS FOR PERFORMING STUDY: To develop the technique of respiratory sound analysis for the diagnosis of dorsal displacement of the equine soft palate. OBJECTIVES: To show that 1) the displaced soft palate can spontaneously vibrate in the presence of expiratory airflow; 2) the observed frequency of vibration can be detected in respiratory sound recordings; and 3) the frequency of vibrations measured in cadaveric specimens are similar to those obtained from audio spectra in exercising horses with DDSP. METHODS: Palatal movements and respiratory sounds were recorded from artificially ventilated cadaveric heads. The fundamental mode of palate vibrations calculated from high-speed videoendoscopic recordings was compared with frequencies detected in the audio spectra and with data collected from exercising horses with DDSP. RESULTS: Palate vibrations occurred when air was blown through the trachea. The fundamental mode of vibrations was present in the audio spectra and was not significantly different from those recorded in vivo. CONCLUSIONS: Vibrations of the soft palate are the probable source of expiratory sounds recorded in horses with DDSP. POTENTIAL RELEVANCE: This study strengthens the case for the application of respiratory sound analysis in the diagnosis of DDSP in exercising horses. SN - 0425-1644 UR - https://www.unboundmedicine.com/medline/citation/15581323/The_displaced_equine_soft_palate_as_a_source_of_abnormal_respiratory_noise_during_expiration_ L2 - https://onlinelibrary.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0425-1644&date=2004&volume=36&issue=7&spage=590 DB - PRIME DP - Unbound Medicine ER -