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The CDKL5 disorder is an independent clinical entity associated with early-onset encephalopathy

The clinical understanding of the CDKL5 disorder remains limited, with most information being derived from small patient groups seen at individual centres.

Early development and regression in Rett syndrome

Our findings provide additional insight into the early clinical profile of Rett syndrome.

Barriers to diagnosis of a rare neurological disorder in China-Lived experiences of Rett syndrome families

Fourteen of 74 Chinese families known to the International Rett Syndrome Phenotype Database participated in this qualitative study.

The diagnostic odyssey to Rett syndrome: The experience of an Australian family

The diagnosis of a rare disorder is dependent on the clinician's particular knowledge and experience, and can be challenging when the presentation is variable.

Altered attainment of developmental milestones influences the age of diagnosis of rett syndrome

This study describes the attainment of gross developmental milestones and regression, and assesses the relationships between genotype and age at diagnosis.

Atypical presentations and specific genotypes are associated with a delay in diagnosis in females with Rett syndrome

There is often delay between onset of Rett syndrome symptoms and its diagnosis, possibly related to symptom presentation or socio-demographic factors.

Influences on the trajectory and subsequent outcomes in CDKL5 deficiency disorder

The study investigated the effect of seizure and medication burden at initial contact with the International CDKL5 Disorder Database on subsequent development and clinical severity and compared quality of life among those whose development progressed, remained stable, or regressed between baseline and follow-up.

Parent and therapist perspectives on "uptime" activities and participation in Rett syndrome

People with a disability may spend more time sitting and lying (“downtime”) and less time standing and walking (“uptime”). Caregivers and therapists supporting individuals with Rett syndrome were surveyed, aiming to gather insights on how to support participation in “uptime” activities.

The perceived effects of cannabis products in the management of seizures in CDKL5 Deficiency Disorder

CDKL5 Deficiency Disorder (CDD) is a severe treatment-resistant form of early-onset epilepsy. Current treatment options are often ineffective and associated with adverse effects, forcing families to seek alternative therapies for their children including products derived from cannabis. Reportsof miraculous cures and a public preferencefor 'natural' therapies have resulted in considerable public interest, and so this study aimed to characterize the use of cannabis in these individuals, as well as compare caregiver perceptions of efficacy and safety to objective evidence of seizure control and number of antiepileptic drugs used.

Aspects of speech-language abilities are influenced by MECP2 mutation type in girls with Rett syndrome

This study investigates relationships between methyl-CpG-binding protein 2 gene (MECP2) mutation type and speech-language abilities in girls with Rett syndrome.