Sensorimotor seizures of pediatric onset with unusual posteriorly oriented rolandic spikes.
BACKGROUND
Benign childhood epilepsy with centro-temporal spikes (BECCT) is usually associated with anteriorly oriented rolandic discharges. We report an unusual type of childhood-onset epilepsy with sensorimotor seizures associated with posteriorly oriented rolandic discharges.


METHODS
Among 942 patients who underwent simultaneous electroencephalography and magnetoencephalography (MEG) for epilepsy evaluation, we found 7 patients with sensorimotor seizures aged under 13 years at onset, with no abnormal magnetic resonance imaging findings, and posteriorly oriented rolandic discharges detected by MEG. Ictal and interictal symptoms were evaluated retrospectively.


RESULTS
All patients had rolandic seizures as well as atypical seizures, such as falling, head dropping, auditory hallucinations, postural symptoms and/or automatism. Seizures were medically intractable in 5 patients and well controlled in 2, one of whom had behavioral problems and the other had transient graphomotor impairment.


CONCLUSIONS
Posteriorly oriented rolandic discharges are better detected by MEG, and would exclude BECCT.
Kakisaka
Yosuke
Y
Department of Pediatrics, Tohoku University School of Medicine, Sendai, Miyagi, Japan.
Nakasato
Nobukazu
N
Haginoya
Kazuhiro
K
Kanno
Akitake
A
Tsuchiya
Shigeru
S
D000328:Adult; D017668:Age of Onset; D001931:Brain Mapping; D002648:Child; D002675:Child, Preschool; D004569:Electroencephalography; D019305:Epilepsy, Rolandic / Q000503:physiopathology*; D005260:Female; D007839:Functional Laterality; D006801:Humans; D015225:Magnetoencephalography / Q000379:methods; D008297:Male; D012189:Retrospective Studies; D012598:Sclerosis / Q000150:complications; D012640:Seizures / Q000503:physiopathology*; D055815:Young Adult