Premium
Ictal HMPAO‐Single Photon Emission Computed Tomography Findings in Reading Epilepsy in a Japanese Boy
Author(s) -
Miyamoto Akie,
Takahashi Satoru,
Tokumitsu Aya,
Oki Junichi
Publication year - 1995
Publication title -
epilepsia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.687
H-Index - 191
eISSN - 1528-1167
pISSN - 0013-9580
DOI - 10.1111/j.1528-1157.1995.tb00478.x
Subject(s) - ictal , epilepsy , single photon emission computed tomography , reading (process) , medicine , computed tomography , psychology , neuroscience , audiology , nuclear medicine , radiology , philosophy , linguistics
Summary: Reading epilepsy is rare. We report a 14‐year‐old right‐handed Japanese boy who had had jaw jerking only while reading since age 12 years. The episodes occurred every time he read an English textbook and some‐times during prolonged reading of a Japanese textbook. The jaw jerking evolved to generalized tonic‐clonic seizures (GTCS) on only two occasions during prolonged reading aloud. Routine EEGs showed no abnormality. After a few minutes of reading, however, the EEG showed bilateral 2‐Hz, 150‐μ V spike‐wave complexes with left frontotemporal accentuation, accompanied by jaw jerking. Ictal single photon emission computed tomography (SPECT) with [ 99m Tc]hexamethylpropylene amine oxime (HMPAO) showed focal hyperperfusion of the frontal lobes bilaterally and of the left temporal area. Interictal SPECT and magnetic resonance imaging (MRI) were normal. The combination of valproate (VPA) and clonazepam (CZP) almost eliminated his symptoms. Ictal SPECT is a useful technique for seizure localization in reading epilepsy.