Objective—To determine clinical signs, results of
diagnostic testing, underlying cause, and outcome in
cats with seizures.
Animals—17 cats with seizures.
Procedure—Only those cats in which an underlying
metabolic abnormality causing the seizures had been
identified, diagnostic imaging of the brain and CSF analysis
had been done, or a necropsy had been performed
were included. Seizures were classified as being a result
of metabolic disease, symptomatic epilepsy (ie, epilepsy
resulting from a structural lesion of the brain), or probably
symptomatic epilepsy (ie, epilepsy without any
extracranial or identifiable intracranial disease that is not
suspected to be genetic in origin).
Results—3 cats had seizures associated with an
underlying metabolic disease (hepatic encephalopathy),
7 had symptomatic epilepsy (3 with neoplasia and
4 with meningoencephalitis), and 7 had probably symptomatic
epilepsy. Six of the 7 cats with symptomatic
epilepsy died or were euthanatized within 3 months
after the diagnosis was made, whereas 6 of the 7 cats
with probably symptomatic epilepsy survived for at
least 12 months after the diagnosis was made.
Conclusions and Clinical Relevance—Results suggest
that cats with probably symptomatic epilepsy
may have a good long-term prognosis. (J Am Vet Med