CDKL5 deficiency disorder (CDD) is an early-onset developmental and epileptic encephalopathy. While a subset of individuals is believed to experience comorbid behavioral disorders, none have reported well-defined affective disorders. Though there is a documented association between epilepsy and mood disorders, they may go undetected in the CDD population due to difficulty assessing mood in the presence of severe/profound intellectual disability and disease-related sleep dysregulation. We aimed to identify the clinical characteristics of an individual with CDD who presented with a mood disorder falling outside this expected behavioral phenotype.
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Lucash et al. (2024) studied this question.
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