title: Comparison of auditory event-related potentials between children with benign childhood epilepsy with centrotemporal spikes and children with temporal lobe epilepsy.
abstract: The abnormal brain discharges observed in benign childhood epilepsy with centrotemporal spikes (BECTS) and temporal lobe epilepsy (TLE) are located close to areas responsible for auditory and language processing. This study aimed to analyze the results of auditory event-related potentials (P300) in children with BECTS and TLE in order to assess whether the epileptic activity in centrotemporal and temporal regions may compromise the integrity and physiology of auditory system structures. This was a prospective, comparative, and cross-sectional study. Group I (GI) consisted of 13 children diagnosed with BECTS, group II (GII), 7 children diagnosed with TLE, and control group (GIII), 16 healthy children, with no hearing or academic complaints. After neurological and basic audiological assessments, P300 was applied. The P300 latency and amplitude were compared between groups. Regarding latency, GI showed 324.1 (+31.5) ms, GII 336.3 (+23.5) ms, and GIII 318 (+27.7) ms. Amplitudes were 4.80 (+3.2) μV in GI, 4.7 (+2.5) μV in GII, and 5.8 (+2.4) μV in GIII. Although children with BECTS showed prolonged latencies and reduced amplitudes, these differences were not considered statistically significant. Children with TLE showed statistically significant prolonged P300 latency compared with the control group (P=0.037). We speculate that abnormal electrical discharges in centrotemporal and temporal regions led to the slowing of auditory processing in our sample.
authors.affiliation: Child and Adolescent Health Program, Center for Investigation in Pediatrics, Faculty of Medical Sciences, State University of Campinas (FCM/UNICAMP), Brazil. Electronic address: rlcasali@gmail.com.
authors.forename: Raquel Leme
authors.initials: RL
authors.lastname: Casali
authors.affiliation: Child and Adolescent Health Program, Center for Investigation in Pediatrics, Faculty of Medical Sciences, State University of Campinas (FCM/UNICAMP), Brazil. Electronic address: isabel.amaral@gmail.com.
authors.forename: Maria Isabel Ramos do
authors.initials: MI
authors.lastname: Amaral
authors.affiliation: Department of Neurology, Faculty of Medical Sciences, State University of Campinas (FCM/UNICAMP), Brazil. Electronic address: miboscariol@yahoo.com.br.
authors.forename: Mirela
authors.initials: M
authors.lastname: Boscariol
authors.affiliation: Department of Neurology, Faculty of Medical Sciences, State University of Campinas (FCM/UNICAMP), Brazil. Electronic address: lulunardi@gmail.com.
authors.forename: Luciane Lorencetti
authors.initials: LL
authors.lastname: Lunardi
authors.affiliation: Department of Neurology, Faculty of Medical Sciences, State University of Campinas (FCM/UNICAMP), Brazil. Electronic address: mmg@fcm.unicamp.br.
authors.forename: Marilisa Mantovani
authors.initials: MM
authors.lastname: Guerreiro
authors.affiliation: Department of Physiotherapy, Speech Therapy and Occupational Therapy, Faculty of Medicine, University of São Paulo (USP), Brazil. Electronic address: cgmatas@usp.br.
authors.forename: Carla Gentile
authors.initials: CG
authors.lastname: Matas
authors.affiliation: Department of Human Development and Rehabilitation, Faculty of Medical Sciences, State University of Campinas (FCM/UNICAMP), Brazil. Electronic address: mfcolella@fcm.unicamp.br.
authors.forename: Maria Francisca
authors.initials: MF
authors.lastname: Colella-Santos
mesh_terms: D000161:Acoustic Stimulation / Q000379:methods; D000200:Action Potentials / Q000502:physiology*; D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D019305:Epilepsy, Rolandic / Q000175:diagnosis* / Q000503:physiopathology*; D004833:Epilepsy, Temporal Lobe / Q000175:diagnosis* / Q000503:physiopathology*; D005072:Evoked Potentials, Auditory / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D011446:Prospective Studies
keywords: Auditory-evoked potentials; Children; Epilepsy; Hearing