Epilepsy is the most common chronic neurological disorder in dogs. Idiopathic epilepsy— recurrent seizures with no identifiable cause but a presumed genetic basis—accounts for over half of cases. The Petit Basset Griffon Vendéen (PBGV) appears particularly affected, with one study estimating a prevalence of 8.9%. However, this figure did not distinguish between inherited and non-inherited forms of epilepsy, leaving important questions unanswered.