Dyslexia Antedating and Postdating Epilepsy Onset

Abstract Introduction In children with epilepsy, comorbidities are frequent. dyslexia, increasingly acknowledged. Little is known about temporal aspects (dyslexia antedating or postdating epilepsy onset, time interval), types, and dyslexia phenotypes. Method From over 1000 files of 51 cases were retrospectively identified a formal diagnosis dyslexia. Ages at diagnoses variables, dyslexia-related neuro-cognition (phoneme deletion rapid letter naming) recorded. Analyses Temporal analyzed chi-squared, t tests, ancova , generalized linear models. Results Duration to ranged from − 5.5 years epilepsy) 10.1 years. 35% the children, antedated emergence epilepsy. Dyslexia was seen across seizure some preference for lobe rolandic epilepsy; rates similar. Notably, encephalopathic development also seen. No specific phenotype Children after in close relationship (shortly before after) scored lower on phonology naming. Conclusion Antedating can be all types. natural setting, may antedate postdate by several Around surface, scores neuro-cognitive tasks lowest, suggesting bidirectional effect condition cognition. Encephalopathic mimicking criteria cases.