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Communication of individuals with CDKL5 deficiency disorder as observed by caregivers: A descriptive qualitative study

CDKL5 deficiency disorder (CDD) is a genetically caused developmental epileptic encephalopathy that causes severe communication impairments. Communication of individuals with CDD is not well understood in the literature and currently available measures are not well validated in this population. Accurate and sensitive measurement of the communication of individuals with CDD is important for understanding this condition, clinical practice, and upcoming interventional trials. 

Adapting a measure of gross motor skills for individuals with CDKL5 deficiency disorder: A psychometric study

Validated measures capable of demonstrating meaningful interventional change in the CDKL5 deficiency disorder (CDD) are lacking. The study objective was to modify the Rett Syndrome Gross Motor Scale (RSGMS) and evaluate its psychometric properties for individuals with CDD.

Diagnostic services for developmental coordination disorder: Gaps and opportunities identified by parents

Affecting one in 20 children, Developmental Coordination Disorder (DCD) is a common neurodevelopmental disorder impacting a child's ability to learn motor skills. Despite its high prevalence, DCD is under-recognized and under-diagnosed, causing unnecessary frustration and stress for families who are seeking help for their child. This study aimed to understand how parents procure diagnostic services and their perspectives on needed supports and services to improve early identification and diagnosis of DCD. 

Stability and change in self-reported risk and resilience factors associated with mental health of siblings of individuals with and without neurodevelopmental conditions over 15 months

Siblings of individuals with neurodevelopmental conditions (NDCs) are a minority population at higher genetic and environmental risk of poorer neurocognitive and psychosocial outcomes compared to siblings of individuals without NDCs.

Negative impact of insomnia and daytime sleepiness on quality of life in individuals with the cyclin-dependent kinase-like 5 deficiency disorder

Cyclin-dependent kinase-like 5 (CDKL5) gene pathogenic variants result in CDKL5 deficiency disorder (CDD). Early onset intractable epilepsy and severe developmental delays are prominent symptoms of CDD. Comorbid sleep disturbances are a major concerning symptom for families.

Initial Validation and Reliability of the CDKL5 Deficiency Disorder Hand Function Scale (CDD-Hand)

Pathogenic variants in the CDKL5 gene result in CDKL5 deficiency disorder (CDD), which is characterized by early-onset epilepsy, severe developmental delay, and often, cortical visual impairment. Validated clinical outcome measures are needed for future clinical trials to be successful. This study aimed to adapt the Rett Syndrome Hand Function Scale for CDKL5 deficiency disorder and evaluate its feasibility, acceptability, content validity, and reliability.

The Lived Experience of Parents’ Receiving the Diagnosis of CDKL5 Deficiency Disorder for Their Child

CDKL5 deficiency disorder (CDD), a severe developmental and epileptic encephalopathy, is being diagnosed earlier with improved access to genetic testing, but this may also have unanticipated impacts on parents’ experience receiving the diagnosis. This study explores the lived experience of parents receiving a diagnosis of CDD for their child using mixed methods.

Parent-reported outcome measures evaluating communication in individuals with rare neurodevelopmental disorders: A systematic review

Communication impairments are a leading concern for parent caregivers of individuals with rare neurodevelopmental disorders. Clinical trials of disease modifying therapies require valid and responsive outcome measures that are relevant to individuals with RNDDs. Identifying and evaluating current psychometric properties for communication measures is a critical step towards the selection and use of appropriate instruments. 

“Broken fragments or a breathtaking mosaic”: A mixed methods study of self-reported attributes and aspirations of siblings of individuals with and without neurodevelopmental conditions

Siblings of individuals with neurodevelopmental conditions (NDCs) experience distinct challenges and have unique strengths compared to siblings of individuals without NDCs.