patient 1

patient 2

patient 3

patient 4

age at onset (mo.)

35

21

34

9

seizure type

M, MA, TC, T, A

M, DA, T

M, DA, T, A, CPS

M, DA

seizure frequency

multiple per day

multiple per day

multiple per day

multiple per day

age at remission (mo.)

43

23

42

24

epilepsy duration (mo.)

8

3

8

3

febrile convulsion

-

+

-

-

family history of epilepsy

+

-

-

-

EEG findings

SBA
SW, PSW, MF

SBA
FS, SW

SBA
PSW, SW

SBA
FS, SW

treatment

VPA, ESM, ZNS, CLB, PHT

VPA, CZP, ZNS

CBZ, VPA, ESM, LTG

VPA

effective drug(s)

PHT, ESM, CLB

VPA, CZP

VPA, LTG

VPA

follow-up period (years)

10

12

4

5

A, absence seizure; CBZ, carbamazepine; CLB, clobazam; CPS, complex partial seizure; CZP, clonazepam; DA, drop attack; ESM, ethosuximide; FS, focal spikes; LTG, lamotrigine; M, myoclonic seizure; MA, myoclonic-astatic seizure; MF, multifocal spikes; PHT, phenytoin; PSW, diffuse polyspike and wave complexes; SBA, slowing of background activity consisting mainly of theta rhythm; SW, diffuse spike and wave complexes T, tonic seizure; TC: tonic-clonic seizure; VPA, valproic acid; ZNS, zonisamide
Table 1: Clinical characteristics of patients.