Overview
Megaesophagus is a condition characterized by the failure of the esophagus to propel food into the stomach, leading to regurgitation and potential malnutrition 1.Diagnosis
Key Diagnostic Criteria: Regurgitation, radiographic evidence of esophageal dilation 1.
Recommended Tests: Thoracic radiography, CT angiography for detailed vascular assessment 1.
Grading: Severity often assessed by degree of esophageal dilation and clinical signs 1.Management
First-Line Treatments: Dietary modifications (e.g., frequent small meals, thickened food) 1.
Adjunctive Treatments: Surgical correction for vascular anomalies causing megaesophagus 1.
Specific Interventions: Three-dimensional CT for surgical planning in cases with aberrant right subclavian artery 1.Special Populations
Pediatrics: Megaesophagus can occur in young cats (age range: 3 months to 5 years) 1.
Comorbidities: Concurrent vascular anomalies like patent ductus arteriosus may coexist 1.Key Recommendations
Utilize CT angiography for accurate preoperative assessment and planning in cases of aberrant right subclavian artery causing megaesophagus (Evidence: Moderate) 1.
Consider surgical intervention for cats with vascular anomalies contributing to megaesophagus, tailored to individual anatomical findings 1 (Evidence: Weak).
Implement dietary management strategies including frequent small meals for symptomatic relief in megaesophagus (Evidence: Expert opinion) 1.References
1 Cinti F, Della Santa D, Borgonovo S, Bussadori R, Troiano D, Pisani G. Aberrant right subclavian artery causing megaoesophagus in three cats. The Journal of small animal practice 2019. link