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Photosensitivity in Relation to Epileptic Syndromes: A Survey from an Epilepsy Center in Japan by Hideaki Shiraishi; Tateki Fujiwara; Yushi Inoue; Kazuichi Yagi is a Medicine article available to read on EtoBox.

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## Purpose: We examined the incidence and distribution of photosensitivity among the different age groups and different types of epilepsies and epileptic syndromes. furthermore, we considered the influence of ethnic and geographic factors on the incidence of photoparoxysmal response (ppr) in epilepsy patients. ## Methods: We analyzed the responses to intermittent photic stimulation (ips) by using a grass ps22 or ps33 photic stimulator for in 2,187 unselected patients with epilepsy who were treated in our center. ## Results: The classic ppr was elicited in 37 (1.7%) patients. the mean age of these 37 patients was 17.0 years. the subpopulation of patients having ppr included 2.0% of all patients with symptomatic generalized epilepsy. 5.6% (p < 0.01) of those with idiopathic generalized epilepsy, 0.7% of those with symptomatic localization-related epilepsy, and 2.9% of those with undetermined epilepsy. ppr accounted for 17.4% (p < 0.01) of the patients with juvenile myoclonic epilepsy, 7.6% (p < 0.01) of those with grand mal on awakening, and 6.1% (p < 0.01) of those with symptomatic occipital lobe epilepsy. the incidence of ppr increased in patients up to age 15 years, and suddenly d

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Author

Hideaki Shiraishi; Tateki Fujiwara; Yushi Inoue; Kazuichi Yagi

Publisher

Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley (ISSN 0013-9580)

Published

2002

Language

EN

Field

Medicine (Health Sciences)