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PubMedDate not supplied

[Global developmental disorders--etiology and classification dilemmas].

We report in this paper pervasive developmental disorders. They represent a rather numerous group of severe psychic diseases of early childhood, of unknown etiology. All psychic functions are disturbed: thinking, emotions and mental functioning. Different classifications of these disorders include various terms for similar clinical conditions. So, there is a dilemma whether it is a case of special nosologic entities or different clinical conditions of the same disorder. Infantile autism, Asperger syndrome, Rett syndrome and atypical psychosis are described. Although prognosis is commonly unfavourable, therapy may be very helpful.

Child↗
PubMedDate not supplied

[Developmental disorders in the fourth edition of the American classification: diagnostic and statistical manual of mental disorders (DSM IV -- optional book)].

In 1991 the American Psychiatric Association proposed a draft version of the IV edition of the Diagnostic and Statistical Manual of Mental Disorders--the DSM IV Options Book. Authors of this version wanted to increase clarity of the criteria sets and to provide compatibility with the Tenth Edition of the International Classification of Diseases (ICD - 10). The purpose of this Options Book is to propose some changes in wording, diagnostic divisions and to discuss various options concerning the placement of sections and disorders within the classification. The "Disorders of Infancy, Childhood or Adolescence" section was renamed "Disorders Usually First Evident in Infancy, Childhood or Adolescence" and moved to the front of the classification and also was expended to 11 groups of disorders. Several suggestions have been made about including new diagnostic groupings such as: Rett's Disorder, Eating Disorders and Voice Disorder. The Options Book introduces a superior category for Attention Deficit Disorders (with and without hyperactivity) and for Conduct Disorder/Oppositional Defiant Disorder. Several options are proposed regarding The Anxiety Disorders of Childhood or Adolescence. There is no evidence for a distinction in this category according to the age criterion. One option would be to move these disorders into the adult anxiety section (similarly as in the Mood Disorders and Schizophrenia). In the new version the title "Specific Developmental Disorders" is omitted. The suggestion is to include Phonological Disorder (Articulation Disorders) and Elective Mutism into Speech and Language Disorders section.

Age Factors↗
PubMed2003

Increased prevalence of familial autoimmunity in probands with pervasive developmental disorders.

OBJECTIVES: Increased prevalence of familial autoimmune disease is a common finding among probands with various autoimmune disorders. Autistic disorder (autism) is a highly genetic disorder with known immune and immunogenetic abnormalities. Previous research has found an increased frequency of autoimmune disorders in families with autistic probands. We further investigated this association by determining the frequency of autoimmune disorders in families that have probands with pervasive developmental disorders (PDDs), including autism, compared with 2 control groups. METHODS: Three well-defined study groups, including 1) families that have a child with a PDD, 2) families that have a child with an autoimmune disorder, and 3) families with a healthy control child, constituted the sample. A questionnaire inquiring about which first- and second-degree family members had received a diagnosis of having specific autoimmune disorders was completed by 101 families in each group. RESULTS: The frequency of autoimmune disorders was significantly higher in families of the PDD probands compared with families of both the autoimmune and healthy control probands. Autoimmunity was highest among the parents of PDD probands compared with parents of the healthy control subjects. Hypothyroidism/Hashimoto's thyroiditis and rheumatic fever were significantly more common in families with PDD probands than in the healthy control families. CONCLUSIONS: Autoimmunity was increased significantly in families with PDD compared with those of healthy and autoimmune control subjects. These preliminary findings warrant additional investigation into immune and autoimmune mechanisms in autism.

Adolescent↗
PubMed2005

Autism-Spectrum Quotient-Japanese version and its short forms for screening normally intelligent persons with pervasive developmental disorders.

A Japanese version of the Autism Spectrum Quotient (AQ), AQ-J was administered to 25 normally intelligent high-functioning pervasive developmental disorder (HPDD) patients (mean age, 24.2 years; 24 male, one female) and 215 controls (mean age, 30.4 years; 86 male, 129 female) randomly selected from the general population. The AQ-J had satisfactory internal consistency reliability (Cronbach's alpha > 0.70 in the two groups), test-retest reliability, and discriminant validity [i.e. the AQ-J score was significantly higher in the HPDD (mean, 29.6) than controls (mean, 22.2)]. At a cut-off of 26, the AQ-J had satisfactory sensitivity, specificity, and negative predictive value, but it had low positive predictive value (0.24) possibly due to the facts that the 25 mild HPDD patients scored lower and the controls scored higher on the AQ-J than British counterparts on the AQ. The AQ-J-21 (consisting of 21 items significantly associated with HPDD diagnosis) and the AQ-J-10 (consisting of 10 of the 21 items with an effect size > 0.17) had higher, although not satisfactory, positive predictive values of 0.35 and 0.46 at cut-offs of 12 and 7, respectively, than the AQ-J. The AQ-J and two short forms are useful not to predict but to rule out mild HPDD, the most difficult part of HPDD to be distinguished from non-PDD conditions, in persons scoring under the cut-offs and to consider professionals' examination of HPDD in persons scoring over them, because their negative predictive values were satisfactory.

Adolescent↗
PubMed2000

Personal viewpoint: eclecticism in health services for developmental disorders.

The term 'eclectic', as applied to health care for children with developmental disorders, portrays an individualized, adaptive service response to local constraints and pressures. While this may appear appropriate for the local setting, the end result is a broad diversity of health care approaches. This paper discusses three separate processes that interact at a local level, increasing the likelihood of an eclectic local model of health care for this population of children. The first process draws from the direct clinical work. Variable training, knowledge and skills among health care providers, in combination with differing beliefs around the nature of the problems and their management leads to health care which directly reflects the attributes of the local clinicians. A separate, second process fuelling variability is the differing models of departmental responsibility across Australia - which Government departments fund which aspect of care for children with disabilities. The final process relates to funding streams for health care. State public health, federal Medicare and private insurance all support health services for children with disabilities, with the financial incentives (budgets compared to fee-for-service) driving a divergence of practice. This paper concludes that the external political, administrative and financial frameworks within which health care is constructed will continue to promote clinical eclecticism to a degree that would probably be considered unacceptable in other areas of child health care. The solution can only arise from within the clinical work itself, with greater clarity of understanding around the nature of the disorders, the outcomes for which health care takes responsibility, and an increasing focus on an evidence based set of approaches towards achieving these.

Australia↗
PubMed2001

Towards a new functional assessment of autistic dysfunction in children with developmental disorders: the Behaviour Function Inventory.

In order to assess particular disorders of psychological development and functioning in children with developmental disorders, we have developed a new tool, the Behaviour Function Inventory (BFI), based on 11 neurophysiological functions, disorders of which are considered to contribute to the core autistic syndrome. This article reports the reliability and validity study of this new scale. Factorial analysis computed on the 55 initial items identified six main dimensions which we characterized and labelled: interaction dysfunction, praxis dysfunction, auditory dysfunction, attention dysfunction, islet of ability and emotional dysfunction. Relationships between these six new variables and diagnostic subgroups, and chronological and developmental age, are discussed. The BFI offers precise information of the functional symptomatology of autism, showing clear evidence of some disordered areas of functioning. This new approach may provide valuable information in clinical research, especially for psychopathology and physiopathology studies.

Autistic Disorder↗
PubMed2002

Sleep patterns of children with pervasive developmental disorders.

Data on sleep behavior were gathered on 100 children with pervasive developmental disorders (PDD), ages 2-11 years, using sleep diaries, the Children's Sleep Habits Questionnaire (CSHQ), and the Parenting Events Questionnaire. Two time periods were sampled to assess short-term stability of sleep-wake patterns. Before data collection, slightly more than half of the parents, when queried, reported a sleep problem in their child. Subsequent diary and CSHQ reports confirmed more fragmented sleep in those children who were described by their parents as having a sleep problem compared to those without a designated problem. Interestingly, regardless of parental perception of problematic sleep, all children with PDD exhibited longer sleep onset times and greater fragmentation of sleep than that reported for age-matched community norms. The results demonstrate that sleep problems identified by the parent, as well as fragmentation of sleep patterns obtained from sleep diary and CSHQ data, exist in a significant proportion of children with PDD.

Child↗
PubMed2001

Cytokines and etiopathogenesis of pervasive developmental disorders.

Autistic disorder, also known as early infantile autism, is a developmental disorder of unknown etiology. However, there is some evidence to suggest that abnormalities of the immune system mediate the pathophysiology of autistic disorder. Cytokines, which play a pivotal role in initiating and maintaining immune responses, have been implicated in the etiopathogenesis of major neuropsychiatric disorders including autism. Cytokines are synthesized in the periphery, as well as in the central nervous system, and exert their effects by binding to their receptors in the nervous tissues. It is suggested that, in genetically predisposed individuals, overproduction or decreased synthesis of certain cytokines may result in neurodevelopmental arrest and/or neurotoxicity.

Adult↗
PubMed2005

Brief report: pervasive developmental disorder can evolve into ADHD: case illustrations.

Despite prominent attentional symptoms in Pervasive Developmental Disorders (PDD) the relationship between PDD and Attention Deficit Hyperactivity Disorder (ADHD) has received little direct examination. In addition, outcome studies of children with PDD often focus on language, educational placement, or adaptive skills, but seldom on loss of the PDD diagnosis or change to another clinical syndrome. We present three cases in detail, and tabular data on eight more, that illustrate a clinical presentation in which prototypical cases of PDD evolve into clear-cut cases of ADHD from early to middle childhood.

Attention Deficit Disorder with Hyperactivity↗
PubMedDate not supplied

Parent-directed, intensive early intervention for children with pervasive developmental disorder.

We examined parent-directed, intensive early intervention for children with Pervasive Developmental Disorder. Children's parents recruited paraprofessional therapists and requested consultations on how to implement the UCLA treatment model in their homes (Smith & Lovaas, 1998). Parents and therapists then received six one-day workshops over a five-month period, with additional consultations for the next 2-3 years. Six boys participated (intake age 35-45 months, intake IQ 45-60). The study addressed 1) the children's skill acquisition during the first five months of treatment; 2) outcome 2-3 years later; 3) treatment quality; and 4) parents' impressions. Five of 6 children rapidly acquired skills when treatment began, but only 2 clearly improved on standardized tests at the 2-3 year follow-up. Therapists usually employed correct treatment procedures but were less consistent than therapists employed at a clinic. Parents reported high satisfaction with treatment. These mixed results highlight the need for multimodal assessment of parent-directed treatment.

Behavior Therapy↗
PubMed2005

An open-label trial of escitalopram in pervasive developmental disorders.

OBJECTIVE: To assess the effect of escitalopram in the treatment of pervasive developmental disorders (PDDs). METHOD: This 10-week study had a forced titration, open-label design. Twenty-eight subjects (mean age 125.1 +/- 33.5 months) with a PDD received escitalopram at a dose that increased weekly to a maximum dose of 20 mg as tolerated. The Aberrant Behavior Checklist-Community Version (ABC-CV) and the Clinical Global Impression scale (CGI) were used to assess outcome. RESULTS: There was significant improvement in ABC-CV Irritability Subscale Scores (baseline mean 20.5 +/- 5.9 to final mean 10.9 +/- 7.2; p < or = .001) and in the other ABC-CV Subscales. Improvement on Clinical Global Improvement Scale severity rating was also significant (baseline mean 5.2 +/- 1.0 to final mean 4.6 +/- 1.2; p < or = .001). Twenty-five percent of the subjects responded at a dose less than 10 mg and did not tolerate the 10-mg dose, and an additional 36% responded at a dose greater than or equal to 10 mg. Final dose was unrelated to weight and only weakly correlated with age. CONCLUSIONS: This open-label study found escitalopram to be useful in treating some difficulties common in PDDs. A wide variability in dose was found that could not be accounted for by weight and only partially by age. The study provides information useful for the design of double-blind, placebo-controlled studies of escitalopram in PDDs.

Adolescent↗
PubMed2002

Pseudologia Fantastica associated with Pervasive Developmental Disorder.

This case study describes the association of Pseudologia Fantastica (PF) and Pervasive Developmental Disorder Not Otherwise Specified (PDD-NOS) in a 14-year-old girl. PF is seen in a number of diagnostic entities, but has not previously been reported in PDD spectrum disorders. Treatment implications are discussed along with a formulation of the psychological and cognitive functions of PF in a person with a PDD diagnosis.

Adolescent↗
PubMed1989

A five-year follow-up of preschool children diagnosed as having an atypical pervasive developmental disorder.

Twelve of eighteen preschool children, previously diagnosed as having an atypical pervasive developmental disorder (APDD), using the third edition of the Diagnostic and Statistical Manual (DSM-III) of the American Psychiatric Association, were followed up 5 years later. The follow-up consisted of a pediatric neurodevelopmental evaluation and the administration of the Personality Inventory for Children (PIC), and a scale derived from the criteria for an autistic disorder (AD) in the revised third edition of the Diagnostic and Statistical Manual (DSM-III-R). The children continued to have significant emotional, social, and cognitive problems at follow-up. Almost all required some form of therapeutic intervention, and many received multiple interventions. A broader range of symptoms (including positive symptoms of schizophrenia and signs of affective and anxiety disorders) were noted. A comparison of DSM-III and DSM-III-R criteria for autism with this population revealed a lack of reliability in diagnoses between systems, both with respect to the more specific diagnosis ("autism") and the less specific atypical diagnoses. The authors discuss the implications of these findings with respect to the interpretation of future follow-up studies of autistic and atypical children.

Child↗
PubMed2004

[Children: improving the prevention and early advancement in children with behavioral- and developmental disorders in the Ennepe-Ruhr District].

Developmental behavioural disorders in early childhood are a serious public health problem, because they signify a higher risk of social, regulatory and emotional impairment in later life. The public health office in Ennepe-Ruhr develops in cooperation with the communities a programme of health promotion for children and their families. An important motive is continually rising costs for supporting children with developmental problems. An element in the programme is a project of counselling mothers with babies and toddlers with excessive crying, serious sleep disorders and anxiety problems. This example of early intervention promises short-term relief, early identification of problem children and the strengthening of parental resources. A key issue is the introduction of a systematic evaluation of all communal funding for measures of support for preschool children. It shows that such measures start relatively late, and the coordination at community level is not always optimal. Some progress has been made, but criteria to measure the efficiency of current health promotion are still lacking. According to public health research early intervention for risk groups (single mothers, migrant families or families depending on public assistance) promises to give children and their families a better social and health perspective in life. It should be a primary health target for communities to develop evidence-based health programmes for children, focussing on mental and social well-being. Studies indicate that such interventions might have positive financial results.

Adolescent↗
PubMed2005

Relationship-focused early intervention with children with pervasive developmental disorders and other disabilities: a comparative study.

This study compares the effects of relationship-focused early intervention on toddlers and preschool-age children who were classified as having either pervasive developmental disorders (PDDs) (N = 20) or developmental disabilities (DDs) (N = 30). The intervention was conducted over a 1-year period through weekly individual parent-child sessions. It focused on helping parents use responsive teaching strategies to encourage their children to acquire and use pivotal developmental behaviors that addressed their individualized developmental needs. Before and after comparisons indicated significant increases in parents' responsiveness and children's pivotal behavior. Both groups of children made significant improvements in their cognitive, communication, and socioemotional functioning. However, children with PDDs made statistically greater improvements on the developmental measures than children with DDs. On several developmental measures, children's improvements were related to increases in both their parents' responsiveness and their own pivotal behavior.

Adult↗
PubMed1998

Outcomes of genetic evaluation in children with pervasive developmental disorder.

We undertook a retrospective etiological study of all children referred for evaluation of pervasive developmental disorder (PDD). We identified 91 children who met the DSM III-R criteria for PDD. Fifty-two were diagnosed with autistic disorder (AD), and 39 with PDD-not otherwise specified (PDD-NOS). Seven families (8.2%) had more than one affected sib. The overall recurrence rate was 7.1%. Six families had a positive history of PDD in more distant relatives. An excess of developmental problems were identified on the maternal side (seven families, vs two families on the paternal side). Affected children had head circumferences above the mean when compared with standardized growth curves. A recognizable syndrome or genetic disorder was identified in 14 children (15.4%), of which 8 children (9%) were thought to be causative of PDD (5 children with Rett syndrome, 2 with fragile X syndrome, and 1 with velocardiofacial syndrome [VCFS]). Six others had a recognized genetic, cytogenetic, or metabolic disorder believed to be unrelated to the PDD diagnosis. Given the relatively high yield of genetic diagnoses in this population, we believe that children with PDD-NOS or AD should have a detailed evaluation by a clinical geneticist or pediatrician trained in dysmorphology. Chromosome anomalies, fragile X, and other recognizable disorders, including VCFS, need to be excluded. The value of general screening for an inborn error of metabolism in all children with PDD is not certain. In light of the relatively high recurrence of PDD in families, genetic counseling is recommended.

Adolescent↗
PubMed1998

Reliability and accuracy of differentiating pervasive developmental disorder subtypes.

OBJECTIVE: To evaluate the ability of the DSM-IV criteria for the pervasive developmental disorders (PDD) to reliably and accurately differentiate PDD subtypes. METHOD: The sample consisted of 143 children with various types of developmental disabilities. A diagnosis of PDD and PDD subtype was made by one clinician using information obtained from the Autism Diagnostic Interview-Revised and the Autism Diagnostic Observation Schedule. The raw data from the Autism Diagnostic Interview-Revised, clinical notes (excluding diagnostic opinion), Autism Diagnostic Observation Schedule, IQ, and other available data were independently assessed by three experienced raters, each of whom then made a separate, blind diagnosis. If there was any disagreement, a consensus best-estimate (CBE) diagnosis was made after discussion. To assess reliability, the agreement between the three raters was calculated using k. Accuracy was assessed by calculating the agreement between the clinician's diagnosis and the CBE and by calculating the error rates associated with the three raters using latent class analysis. RESULTS: The current DSM-IV criteria show good to excellent reliability for the diagnosis of PDD, Asperger's disorder (AsD), and autism, but they show poor reliability for the diagnosis of atypical autism. The clinician (compared to the CBE) had little difficulty differentiating PDD from non-PDD children and autism from AsD but had more difficulty identifying children with atypical autism. The latent class analysis also showed that the average error rates of the three raters for a differentiation of atypical autism from autism were unacceptably high. CONCLUSIONS: Although the psychometric properties of the current DSM-IV criteria for autism and AsD appear quite acceptable, there is likely to be a high rate of misclassification of children given a diagnosis of atypical autism.

Adolescent↗