What are the signs & symptoms that develop in affected dogs?
The most significant clinical sign of the disorder is cerebellar ataxia; affected dogs often also display myokymia, an involuntary quivering of a group of muscles or part of a single muscle, seizures, or both. As the disease progresses, the muscle quivering or myokymia can reach a point that dogs can overheat; seizures can also become progressively more severe.
When do signs and symptoms develop?
Spinocerebellar ataxia (SCA) with myokymia, seizures, or both is a juvenile onset inherited disorder. Affected dogs usually begin to show signs between two and ten months of age.
How do vets diagnose this condition?
Unless a genetic basis is suspected due to the age, breed, or history of the dog, diagnostics must be performed to rule out infectious, inflammatory, or neoplastic causes.
How is this condition treated?
There is no treatment for this disorder. Certain medications may be prescribed to control symptoms.