title: Photoparoxysmal responses in children: their characteristics and clinical correlates.
abstract: This study evaluates the characteristics of photoparoxysmal responses elicited with intermittent photic stimulation during a routine electroencephalogram in childhood and correlated this with the clinical profile of the child. Photoparoxysmal responses occurred in 8% (21/263) of children where activation was undertaken. Photoparoxysmal responses were often brief and had a variable onset latency. This study suggests increasing the duration of the stimulus train to 10 seconds or more will increase the diagnostic yield. Photoparoxysmal responses very rarely outlasted the stimulus, and self-limited photoparoxysmal responses probably have greater significance than previously attributed to them. They are highly correlated with epilepsy.
authors: Department of Neurology, Princess Margaret Hospital for Children, Perth, Australia.
authors: Lakshmi
authors: L
authors: Nagarajan
authors: Alpana
authors: A
authors: Kulkarni
authors: Linda
authors: L
authors: Palumbo-Clark
authors: Pauline Bernadette
authors: PB
authors: Gregory
authors: Peter John
authors: PJ
authors: Walsh
authors: Sasson Stephen
authors: SS
authors: Gubbay
authors: Jonathon Michael
authors: JM
authors: Silberstein
authors: Ernst Peter
authors: EP
authors: Silberstein
authors: Emma Louise
authors: EL
authors: Carty
authors: Wendy Rosemary
authors: WR
authors: Dimitroff
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D004569:Electroencephalography / Q000379:methods* / Q000706:statistics & numerical data; D004827:Epilepsy / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D010775:Photic Stimulation / Q000379:methods*; D010865:Pilot Projects