Naomi Kahana Levy1, Jonathan Segalovsky2, Mony Benifla1, Odelia Elkana3. 1. Comprehensive Epilepsy Center, Rambam Health Care Campus, Haifa, Israel. 2. School of Behavioral Sciences, Academic College of Tel Aviv-Jaffa, P.O.B. 8401, 61083, Tel-Aviv-Jaffa, Israel. 3. School of Behavioral Sciences, Academic College of Tel Aviv-Jaffa, P.O.B. 8401, 61083, Tel-Aviv-Jaffa, Israel. odelia.elkana@gmail.com.
Abstract
RATIONALE: Memory deficits in children with epilepsy have been reported in some but not all studies assessing the effects of side of seizures and resection from the temporal lobe on cognitive performance. This meta-analysis provides a quantitative systematic review of previous studies on this issue. METHOD: A critical review and meta-analysis of the literature on memory performance in children with Temporal Lobe Epilepsy (TLE) was conducted. Search identified 25 studies, 13 of which compared children with TLE to healthy age-matched controls and 12 of which compared children with TLE before and after surgery. RESULTS: Heterogeneity of the comparisons of children with TLE to healthy controls impeded drawing definitive conclusions. However, in 55% of the studies, verbal memory in children with left TLE (LTLE) was impaired as compared to healthy controls. Verbal memory performance slightly declines after pediatric LTLE surgery, but nonverbal memory tasks are not affected. By contrast, verbal memory performance is not affected by pediatric right TLE (RTLE) surgery. CONCLUSIONS: The findings suggest that side of the epileptogenic zone and resection from the temporal lobe affect verbal memory in children with LTLE. Right resection seems to be safe with respect to verbal memory performance.
RATIONALE: Memory deficits in children with epilepsy have been reported in some but not all studies assessing the effects of side of seizures and resection from the temporal lobe on cognitive performance. This meta-analysis provides a quantitative systematic review of previous studies on this issue. METHOD: A critical review and meta-analysis of the literature on memory performance in children with Temporal Lobe Epilepsy (TLE) was conducted. Search identified 25 studies, 13 of which compared children with TLE to healthy age-matched controls and 12 of which compared children with TLE before and after surgery. RESULTS: Heterogeneity of the comparisons of children with TLE to healthy controls impeded drawing definitive conclusions. However, in 55% of the studies, verbal memory in children with left TLE (LTLE) was impaired as compared to healthy controls. Verbal memory performance slightly declines after pediatric LTLE surgery, but nonverbal memory tasks are not affected. By contrast, verbal memory performance is not affected by pediatric right TLE (RTLE) surgery. CONCLUSIONS: The findings suggest that side of the epileptogenic zone and resection from the temporal lobe affect verbal memory in children with LTLE. Right resection seems to be safe with respect to verbal memory performance.
Authors: Sallie Baxendale; Sarah J Wilson; Gus A Baker; William Barr; Christoph Helmstaedter; Bruce P Hermann; John Langfitt; Gitta Reuner; Patricia Rzezak; Séverine Samson; Mary-Lou Smith Journal: Epileptic Disord Date: 2019-06-01 Impact factor: 1.819
Authors: Madison M Berl; Lauren A Zimmaro; Omar I Khan; Irene Dustin; Eva Ritzl; Elizabeth S Duke; Leigh N Sepeta; Susumu Sato; William H Theodore; William D Gaillard Journal: Ann Neurol Date: 2014-01-02 Impact factor: 10.422