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Caregivers' Perceptions of Clinical Symptoms, Disease Management, and Quality of Life Impact in Cases of Cyclin-Dependent Kinase-Like 5 Deficiency Disorder: Cross-Sectional Online Survey

Cyclin-dependent kinase-like 5 (CDKL5) deficiency disorder (CDD) is an ultrarare genetic condition causing developmental epileptic encephalopathy characterized by seizures and motor and intellectual disabilities. No disease-modifying therapies are available, and treatments focus mainly on symptom management to improve quality of life.

A Multisite Randomized Controlled Trial of Hand Arm Bimanual Intensive Training Including Lower Extremity for Children with Bilateral Cerebral Palsy

To test the efficacy of Hand Arm Bimanual Intensive Therapy Including Lower Extremity (HABIT-ILE) to improve gross motor function, manual ability, goal performance, walking endurance, mobility, and self-care for children with bilateral cerebral palsy. 

Septo-optic dysplasia and gastroschisis: trends in birth prevalence and association with maternal age

This study aims to describe the risk factors and trends in birth prevalence of septo-optic dysplasia (SOD) and gastroschisis between 1980 and 2023. This descriptive, population-based study of SOD and gastroschisis used Western Australian Register of Developmental Anomalies data from 1980 to 2023. Birth prevalence was calculated using Midwives Notification System data for all births after 20 weeks gestation.

A core outcome set to assess chronic pain interference and impact on emotional functioning for children and young people with cerebral palsy

Aim: To: (1) develop a core outcome set (COS) to assess chronic pain interference and impact on emotional functioning for children and young people with cerebral palsy (CP) with varying communication, cognitive, and functional abilities; (2) categorize the assessment tools according to reporting method or observer-reported outcome measures; and (3) categorize the content of tools in the COS according to the International Classification of Functioning, Disability and Health (ICF).

Development and initial validation of the Communication Inventory Disability – Observer Reported (CID-OR): a measure of communication in CDKL5 deficiency disorder

CDKL5 Deficiency Disorder (CDD) is a rare neurodevelopmental disorder characterised by early onset seizures combined with complex healthcare needs and developmental impairment that influence functional domains including communication. Communication is a high priority domain for families but currently used measures demonstrate floor effects. 

What is it like living with X-linked hypophosphatemia?: results from an Australian consumer survey

X-linked hypophosphatemia (XLH) is a rare, X-linked dominant condition with a high burden of both physical and psychosocial disease. This study aimed to describe the experience and burden of disease for children and adults living with XLH in Australia by inviting affected individuals and their carers to complete an online questionnaire. Of the 46 responses, half were completed by a person with XLH, and half by carers. Thirty percent were male, 33% were aged less than 18 yr.

Parent/caregiver perspectives of meaningful improvement in functional domains for people with CDKL5 deficiency disorder: a mixed-methods study

CDKL5 deficiency disorder (CDD) is a rare developmental and epileptic encephalopathy. Greater understanding of the smallest meaningful improvements for individuals with CDD in clinical trials and practice is needed for a person-centred approach to treatment efficacy. This study explored how parent/caregivers of people with CDD understood meaningful improvements and described change for priority functional domains including communication, gross motor, fine motor, feeding.

Beyond Seizures as an Outcome Measure: A Global Severity Scoring System for CDKL5 Deficiency Disorder

CDKL5 deficiency disorder (CDD) is a rare developmental and epileptic encephalopathy (DEE) associated with multiple impairments and comorbidities. Outcome measures for disease-modifying clinical trials for DEEs should measurably capture a spectrum of caregiver priorities and be externally validated.

Psychometric validation of the quality of life Inventory − Disability (QI-Disability) among patients with Lennox-Gastaut syndrome and Dravet syndrome

To evaluate the psychometric properties of the Quality of Life Inventory -Disability (QI-Disability) for individuals with Dravet syndrome (DS) or Lennox-Gastaut syndrome (LGS), two rare developmental and epileptic encephalopathy conditions.

Six cases of ENPP1 pathogenic variants causing autosomal recessive hypophosphatemic rickets type 2 and generalized arterial calcification of infancy

Autosomal recessive hypophosphatemic rickets type 2 (ARHR2) and generalized arterial calcification of infancy (GACI) occur secondary to biallelic ectonucleotide pyrophosphate/phosphodiesterase 1 (ENPP1) loss-of-function pathogenic variants. GACI is a life-threatening condition, often presenting in the neonatal period with heart failure and hypertension, caused by calcification of the media in large- and medium-sized arteries.