A comparative analysis of two unrelated outbreaks in Latvia and Australia of acquired idiopathic megaesophagus in dogs fed two brands of commercial dry dog foods: 398 cases (2014–2018)
In Latvia in 2014, acquired idiopathic megaesophagus (AIME) was observed in increased numbers of dogs. Within 2 years, 253 dogs were affected. Performed in May 2015, the retrospective study was an epidemiological investigation of possible causes of AIME. AIME was diagnosed predominantly in large-breed male dogs (> 25 kg [55 lb]). Regurgitation, weight loss, and
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