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Esophageal dysfunction in a weanling thoroughbred.

E S Clark, D D Morris, R H Whitlock

    The Cornell Veterinarian
    |April 1, 1987
    PubMed
    Summary
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    A young horse experienced persistent swallowing difficulties and food impaction due to an esophageal motor abnormality. Esophageal manometry helped diagnose this condition, highlighting its importance in equine veterinary medicine.

    Area of Science:

    • Veterinary Medicine
    • Equine Gastroenterology
    • Animal Physiology

    Background:

    • Dysphagia and esophageal impaction are significant clinical challenges in young horses.
    • Understanding the underlying causes of esophageal dysfunction is crucial for effective management.

    Observation:

    • A 6-month-old Thoroughbred colt presented with congenital dysphagia, regurgitation, and esophageal impaction.
    • Endoscopic and radiographic evaluations revealed esophageal ulceration, dilatation, and lack of peristalsis.
    • Esophageal manometry indicated prolonged, simultaneous contractions, suggesting a motor disorder.

    Findings:

    • The colt's esophageal dysfunction persisted despite dietary management, leading to euthanasia at 17 months.
    • Post-mortem examinations revealed no gross or histologic abnormalities in neural or muscular esophageal structures.

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  • The clinical presentation and manometric findings strongly suggested a primary esophageal motor abnormality.

    • Implications:

    • Esophageal motor disorders should be considered in horses presenting with persistent dysphagia or recurrent choke.
    • Esophageal manometry is a valuable diagnostic tool for characterizing esophageal motor abnormalities in horses.
    • This case underscores the challenges in diagnosing and managing congenital esophageal motility disorders in equines.