Table 1.
Idiopathic | Structural | |||
---|---|---|---|---|
N | % | N | % | |
Status at study end | ||||
Alive | 45 | 74 | 4 | 31 |
Deceased | 16 | 26 | 9 | 15 |
Gender | ||||
Female | 27 | 44 | 10 | 77 |
Entire | 21 | 78 | 9 | 90 |
Neutered | 6 | 22 | 1 | 10 |
Male | 34 | 56 | 3 | 23 |
Entire | 24 | 71 | 2 | 67 |
Neutered | 10 | 29 | 1 | 33 |
Seizure type | ||||
Focal | 12 | 20 | 1 | 8 |
Focal evolving into generalized | 34 | 56 | 9 | 69 |
Primary generalized | 11 | 18 | 2 | 15 |
Unknown | 4 | 7 | 1 | 8 |
Diagnostic work-up | ||||
Magnetic resonance imaging | 30 | 49 | 9 | 69 |
Computed tomography | 0 | 0 | 4 | 31 |
Cerebrospinal fluid analysis | 20 | 33 | 6 | 46 |
Post mortem histopathology | 1 | 2 | 6 | 46 |
Seizure severity | ||||
Cluster seizures (prior to inclusion) | 18 | 30 | 12 | 92 |
Status epilepticus (prior to inclusion) | 2 | 3 | 0 | 0 |
Median age at seizure onset (months)a | 35 (range: 5–114) | 59 (range 3–144) | ||
Median age at inclusion (months) | 43 (range: 13–119) | 48 (range: 3–146) | ||
Median months of inclusion | 28 (range: 1–42) | 1 (range: 0–38) | ||
Median weight at inclusion (kg)b | 23.9 (range: 2–71) | 8.9 (range: 2.2–32) | ||
Survival | ||||
Survival time (months) | 23 (range: 3–65) | 2 (range: 0–49) |
aSeven dogs with idiopathic epilepsy and two dogs with structural epilepsy excluded, as exact date of onset was unknown
bThree dogs with idiopathic epilepsy excluded from calculation, as weight at onset was unknown