Introduction
- Retrograde flow of ingesta from the esophagus to the mouth, occasionally nose.
- Regurgitation is a clinical sign NOT A DIAGNOSIS.
- Cause : esophageal irritation, motility disorder or obstruction.
- Signs : food returned with lack of abdominal effort, production of mucoid saliva between meals.
- Diagnosis : signs, radiography, esophagoscopy.
- Treatment : depends on cause but most cases also require treatment for esophagitis if regurgitation has been persistent.
- Prognosis : depends on cause but can be good with appropriate treatment.
Diagnosis
Clinical signs
- Depression.
- Pain on palpation of cervical esophageal region.
- Occasionally fluid can be heard sloshing in large megaesophagus on palpation.
- Increased respiratory noise if secondary inhalation pneumonia
or mediastinitis present (decreased if anterior mediastinal mass).
- Weight loss if chronic.
- Mass at thoracic inlet - reduced compressibililty of thoracic inlet.
- Other signs referrable to primary disease.
Diagnosis
Differential diagnosis
Sequelae
Prognosis
- Depends on etiology.
- Often good if underlying cause can be addressed.
- Guarded prognosis should be given in cases with aspiration pneumonia.
- Esophageal perforation carries a very poor prognosis.
Expected response to treatment
- Improving demeanor.
- Reduced frequency of regurgitation.
- In most cases where improvement is going to occur, this will be within a matter of days.
Reasons for treatment failure
- Severe/untreatable underlying pathology.
- Failure to support patient adequately while nil per os .
- Development of complications such as inhalation pneumonia or mediastinitis which may be fatal.
- Stricture development post esophagitis or esophageal foreign body removal.
Sources
Publications
Refereed papers
- Washabau R J & Hall J A (1997)Diagnosis and management of gastrointestinal motility disorders in dogs and cats.Comp Cont Ed Pract Vet19, 721-737.




