Case classification | Criteria |
---|---|
Possible | A dog with a history of chronic regurgitation ± clinical evidence of aspiration pneumonia. |
Probable | Evidence of oesophageal dilatation on thoracic radiographs ± evidence of aspiration pneumonia; and Negative anti-acetylcholine receptor antibody assay. |
Confirmed | Evidence of oesophageal dilation on thoracic radiographs (without sedation) or fluoroscopic swallowing study ± evidence of aspiration pneumonia; and Negative anti-acetylcholine receptor antibody assay; and Normal baseline cortisol/ACTH stimulation test; and Normal thyroid function. |