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==Introduction==

==Introduction==

Epiglottic entrapment is one of the causes of respiratory noise and exercise intolerance in the horse. In this condition, the '''aryepiglottic fold''' completely envelops the apex and lateral margins of the [[Larynx - Anatomy & Physiology#Epiglottis|epiglottis]].

Epiglottic entrapment is one of the causes of respiratory noise and exercise intolerance in the horse. In this condition, the '''aryepiglottic fold''' completely envelops the apex and lateral margins of the [[Larynx - Anatomy & Physiology#Epiglottis|epiglottis]].

Entrapment may be intermittent but is usually a permanent condition.

Entrapment may be intermittent but is usually a permanent condition.

==Clinical signs==

==Clinical Signs==

'''Respiratory noise''': is variable. It can be inspiratory due to the turbulence created by the abnormal epiglottis in the laryngeal lumen, or expiratory due to the vibration of the entrapping mucosa.

'''Respiratory noise''' is variable. It can be inspiratory due to the turbulence created by the abnormal epiglottis in the laryngeal lumen, or expiratory due to the vibration of the entrapping mucosa.

Entrapment may also cause '''Dorsal Displacement of the Soft Palate''', which causes an inspiratory and loud expiratory gurgle.

Entrapment may also cause [[Dorsal Displacement of Soft Palate|'''Dorsal Displacement of the Soft Palate''']], which causes an inspiratory and loud expiratory gurgle.

There is usually an '''impact on performance''', although some cases have been incidental findings.

There is usually an '''impact on performance''', although some cases have been incidental findings.

This is generally '''curative''' with a relapse rate of 5%. Some horses may require several months' convalescence.

This is generally '''curative''' with a relapse rate of 5%. Some horses may require several months' convalescence.

==References==

==References==

Kahn, C. (2005) '''Merck Veterinary Manual''' 9th Edition ''Merck & Co''

Kahn, C. (2005) '''Merck Veterinary Manual''' 9th Edition ''Merck & Co''

McCann, J. (2000) '''Equine Practice: Differential diagnosis of abnormal respiratory noises in the exercising horse''' ''In Practice'' 22:370-381

McCann, J. (2000) '''Equine Practice: Differential diagnosis of abnormal respiratory noises in the exercising horse''' ''In Practice'' 22:370-381

[[Category:Larynx - Pathology]]

[[Category:Larynx - Pathology]]

[[Category:Respiratory System - Developmental Pathology]]

[[Category:Respiratory System - Developmental Pathology]]

[[Category:To Do - Helen]]

[[Category:Respiratory Diseases - Horse]]

[[Category:To Do - Review]]

[[Category:Expert Review - Horse]]