Browse Items (291 total)

Cataplexy is a brief episode of bilateral loss of muscle tone with intact consciousness, triggered by a variety of strong emotions such as anger, laugh, humor or surprise and it is considered to represent the physiologic atonia of rapid eye movement…

Clinicians require scientifically rigorous, clinically meaningful rating scales to evaluate the health impact of disease and treatment that cannot be measured using conventional laboratory instruments. This study evaluated the psychometric properties…

PURPOSE: Rett syndrome is a severe neurodevelopmental disorder mainly affecting females and usually linked to mutations in the methyl-CpG-binding protein 2 gene, with an estimated prevalence of 1 in 10,000 live female births. Clinical features which…

Stereotypic hand movements are a feature of Rett Syndrome but few studies have observed their nature systematically. Video data in familiar settings were obtained on subjects (n = 144) identified from an Australian population-based database. I-land…

Systematic data from a multidisciplinary clinical assessment of a large series of females with Rett syndrome (RS; n=87) is presented. Participants' ages ranged from 2 years 1 month to 44 years 10 months. Areas assessed included oromotor skills,…

Pantothenate kinase-associated neurodegeneration (PKAN) causes a progressive generalized dystonia which remains pharmacologically intractable. We performed bilateral internal globus pallidus stimulation in six patients with genetically confirmed PKAN…

Progressive myelopathies can be secondary to inborn errors of metabolism (IEM) such as mucopolysaccharidosis, mucolipidosis, and adrenomyeloneuropathy. The available scale, Japanese Orthopaedic Association (JOA) score, was validated only for…

Juvenile neuronal ceroid lipofuscinosis (JNCL; CLN3 disease; Batten disease) is an autosomal recessive neurodegenerative disease of childhood. Symptoms typically present at school age with vision loss followed by progressive cognitive decline, motor…

BACKGROUND: The aim was to gain a UK national sample of people with Rett syndrome (RTT) across the age range and compare their characteristics using a variety of relevant behavioural measures with a well-chosen contrast group. METHODS: The achieved…

As part of a wider study to investigate the behavioral phenotype of a national sample of girls and women with Rett syndrome (RTT) in comparison to a well-chosen contrast group and its relationship to parental well-being, the development, clinical…

The aim was to observe the behaviour of a sample of females with RTT and explore how it was organized in relation to environmental events. Ten participants, all with a less severe form of classic (n = 9) or atypical (n = 1) Rett syndrome (RTT), were…

Problem behaviors of individuals who had one of three chromosome deletion disorders (5p- cri-du-chat, 15q- Prader-Willi, or 17p- Smith-Magenis) were investigated. The Aberrant Behavior Checklist was used. Results were contrasted with those of two…

In the current study, the authors examined whether the fatigue level of children diagnosed with cri du chat syndrome was associated with the expression of autistic symptoms. Sixty-nine children with cri du chat syndrome were compared with 47 children…

The aim of the present study was to determine the prevalence and frequency of stereotypy, self-injurious behaviour (SIB), and aggression in children and adults with Cri du Chat syndrome (CCS), and to investigate the relationship between SIB,…

Sanfilippo syndrome is a rare degenerative disorder which has severe intellectual and behavioural sequelae, commonly including sleep problems. A parental questionnaire was used to gather information on the sleep patterns of 80 children with…

Objectives: We sought to document the prevalence and nature of sleep-disordered breathing (SDB) in individuals with Friedreich ataxia (FRDA) as well as establish the relationship, if any, between SDB and clinical parameters of FRDA. Methods:…

Friedreich Ataxia (FRDA) is the commonest inherited ataxia. Clinical trials of pharmaceuticals are increasingly being conducted in this condition. This requires the most accurate outcome measures to enable trials to be conducted with a minimum number…

Twenty children with cri-du-chat syndrome were assessed on the Vineland Adaptive Behavioural Scales. Strengths within rather than between the adaptive domains were identified with posthoc analyses revealing the main differences to lie within the…

Developmental and behavioural characteristics were assessed in 27 children with cri du chat syndrome using the Society for the Study of Behavioural Phenotypes questionnaire, which gave information on prenatal and perinatal conditions, neurological…

BACKGROUND AND PURPOSE: The purpose of this study was to describe gait parameters in children and adolescents with a diagnosis of Friedreich ataxia (FA) and examine the relationship between disease severity, measured by the Friedreich Ataxia Rating…

The mucopolysaccharide disorders (MPS) are a group of recessively inherited metabolic disorders resulting in progressive physical and cognitive decline. MEDLINE, PsycINFO and Embase databases were searched, alongside manual screening, to identify…

PubMed Central Canada (PMC Canada) provides free access to a stable and permanent online digital archive of full-text, peer-reviewed health and life sciences research publications. It builds on PubMed Central (PMC), the U.S. National Institutes of…

BACKGROUND: Pantothenate kinase-associated neurodegeneration is a progressive neurological disorder occurring in both childhood and adulthood. The objective of this study was to design and pilot-test a disease-specific clinical rating scale for the…

Objective: To validate a useful version of the Motor Function Measure (MFM) in children with neuromuscular diseases aged .90), and discriminant validity was good. Conclusions: The MFM-20 can be used as an outcome measure for assessment of motor…

Previous studies demonstrated the efficacy and safety of prolonged-release melatonin in children and adolescents with neurodevelopmental and behavioral disorders. The long-term effectiveness and safety of prolonged-release melatonin treatment were…

Tuberous sclerosis complex (TSC) (OMIM191100) is a genetic disorder with multi-system involvement including neurodevelopmental manifestations. There is great interest in understanding the pathogenetic mechanisms underlying these neurobehavioral and…

BACKGROUND: Tuberous sclerosis complex is a multisystem genetic disorder with a range of physical manifestations that require evaluation, surveillance, and management. Individuals with tuberous sclerosis complex also have a range of behavioral,…

Costello syndrome is a rare genetic condition caused by heterozygous alterations in HRAS and characterized by multi-system abnormalities. Individuals with Costello syndrome usually present with severe feeding difficulties in infancy, short stature,…

This study explored the safety and efficacy of synthetic melatonin in the treatment of sleep problems in 20 children with developmental disabilities, in a randomized, double-blind, placebo-controlled 6-week trial of melatonin versus placebo. All but…

Movement impairment is a fundamental but variable component of the Rett syndrome phenotype. This study used video supplemented by parent report data to describe the gross motor profile in females with Rett syndrome (n=99) and to investigate the…

Loss of hand function is a core feature of Rett syndrome. This article describes longitudinal hand function at 3 time points for 72 subjects participating in the Australian Rett Syndrome Database. Approximately 40% of subjects with some grasping…

Background: Rett syndrome is a pervasive neurological disorder with impaired gait as one criterion. This study investigated the capacity of three accelerometer-type devices to measure walking activity in Rett syndrome. Methods: Twenty-six…

Aim: To quantify, in individuals with Rett syndrome with the capacity to walk, walking-based activity and sedentary time, and to analyse the influences of age, walking ability, scoliosis, and the severity of epilepsy. Method: Sixty-four participants…

AIM: We investigated relationships between hand function and genotype and aspects of phenotype in Rett syndrome. METHOD: Video assessment in naturalistic settings was supplemented by parent-reported data in a cross-sectional study of 144 females with…

PURPOSE: In girls and women with Rett syndrome, we assessed the accuracy of the StepWatch Activity Monitor™ and investigated relationships between daily step counts, gross motor skills and age. METHOD: Twelve subjects (age 12.9 ± 8.0 years)…

© 2016 Downs et al. Rett syndrome is a pervasive neurodevelopmental disorder associated with a pathogenic mutation on the MECP2 gene. Impaired movement is a fundamental component and the Rett Syndrome Gross Motor Scale was developed to measure gross…

Patients with 22q11DS are at risk of behavioral problems and cognitive impairment. Recent studies suggest a possible intellectual decline in 22q11DS children. To date it is unknown if cognitive development is related to the behavioral problems in…

INTRODUCTION: Hand stereotypies (HS) are a primary diagnostic criterion for Rett syndrome (WIT) but are difficult to characterize and quantify systematically. METHODS: We collected video on 27 girls (2-12 years of age) with classic RTT who…
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