VPM (Vizsla Polymyositis) is now a recognised disease. Scroll down for references.
Here are the signs that may be present
- dysphagia (esecially at the level of the pharynx)
- poor tongue function
- muscle loss - especially around the head
- exercise intolerance
- creatine kinase > 1000u/l
- megaoesophagus identified on thoracic radiographs
- oesophageal motility problem detected by fluoroscopy
- MRI changes consistent with polymyositis
- electrophysiological changes consistent with muscle disease
Infectious causes of muscle disease (eg neosporosis, toxoplasmosis) must also be ruled out.
Definitive diagnosis of VPM requires muscle bipsy submission the Comparitive Neuromuscular Laboratory in San Diego.
References (click on blue link)
Tauro and others 2012 - ECVN (European College Veterinary Neurology)Dr Clare Rusbridge BVMS, PhD, DipECVN, MRCVS
Comparative Neuromuscular Laboratory