Autonomic breathing abnormalities in Rett syndrome: caregiver perspectives in an international database study / J. MACKAY in Journal of Neurodevelopmental Disorders, 9-1 (December 2017)  

Public ISBD [article]  inJournal of Neurodevelopmental Disorders > 9-1 (December 2017) . - p.15 Titre : Autonomic breathing abnormalities in Rett syndrome: caregiver perspectives in an international database study Type de document : Texte imprimé et/ou numérique Auteurs : J. MACKAY, Auteur ; J. DOWNS, Auteur ; K. WONG, Auteur ; J. HEYWORTH, Auteur ; A. EPSTEIN, Auteur ; H. LEONARD, Auteur Article en page(s) : p.15 Langues : Anglais (eng) Mots-clés : Breathing disorders  Developmental disability  Genotype  International database  Mecp2  Rare disorder  Rett syndrome Index. décimale : PER Périodiques Résumé : BACKGROUND: Rett syndrome is a severe neurodevelopmental disorder associated with mutations in the MECP2 gene. Irregular breathing patterns and abdominal bloating are prominent but poorly understood features. Our aims were to characterize the abnormal breathing patterns and abdominal bloating, investigate the distribution of these by age and mutation type and examine their impact and management from a caregiver perspective. METHODS: We invited previously recruited families from the International Rett Syndrome Study to complete a web-based questionnaire concerning their family member with Rett syndrome aged between 2 and 57 years. We used logistic regression to investigate presence, frequency and impact of breath-holding, hyperventilation, or abdominal bloating by age group and mutation type. Age of onset for both breathing abnormalities was investigated using time-to-onset analysis, and the Kaplan-Meier method was used to estimate the failure function for the study sample. Descriptive statistics were used to characterize the management of irregular breathing. RESULTS: Questionnaires were returned by 413/482 (85.7%) families. Breath-holding was reported for 68.8%, hyperventilation for 46.4% and abdominal bloating for 42.4%. Hyperventilation was more prevalent and frequent in those younger than 7 years of age and abdominal bloating in those aged over 20 years. Onset of breathing irregularities usually occurred during early childhood. Caregivers perceived that daily life was considerably impacted for almost half (44.1%) of those with abdominal bloating and in just over than a third of those with breath-holding (35.8%) or hyperventilation (35.1%). Although perceived impact was broadly comparable between age and mutation groups for breath-holding, hyperventilation and abdominal bloating, girls and women with a p.Arg294* mutation were considered to be more affected by all three conditions. Only 31 individuals had received medically prescribed treatments including 12 different medications, added oxygen, rebreathing apparatus or non-invasive ventilation. CONCLUSIONS: Autonomic disturbances are prevalent and burdensome in Rett syndrome. This information may guide the design of inclusion criteria and outcome measures for clinical intervention trials targeting autonomic abnormalities. Further investigation of available treatments is necessary to delineate evidence-based management pathways. En ligne : http://dx.doi.org/10.1186/s11689-017-9196-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=350 [article] Autonomic breathing abnormalities in Rett syndrome: caregiver perspectives in an international database study [Texte imprimé et/ou numérique] / J. MACKAY, Auteur ; J. DOWNS, Auteur ; K. WONG, Auteur ; J. HEYWORTH, Auteur ; A. EPSTEIN, Auteur ; H. LEONARD, Auteur . - p.15. Langues : Anglais (eng) in Journal of Neurodevelopmental Disorders > 9-1 (December 2017) . - p.15 Mots-clés : Breathing disorders  Developmental disability  Genotype  International database  Mecp2  Rare disorder  Rett syndrome Index. décimale : PER Périodiques Résumé : BACKGROUND: Rett syndrome is a severe neurodevelopmental disorder associated with mutations in the MECP2 gene. Irregular breathing patterns and abdominal bloating are prominent but poorly understood features. Our aims were to characterize the abnormal breathing patterns and abdominal bloating, investigate the distribution of these by age and mutation type and examine their impact and management from a caregiver perspective. METHODS: We invited previously recruited families from the International Rett Syndrome Study to complete a web-based questionnaire concerning their family member with Rett syndrome aged between 2 and 57 years. We used logistic regression to investigate presence, frequency and impact of breath-holding, hyperventilation, or abdominal bloating by age group and mutation type. Age of onset for both breathing abnormalities was investigated using time-to-onset analysis, and the Kaplan-Meier method was used to estimate the failure function for the study sample. Descriptive statistics were used to characterize the management of irregular breathing. RESULTS: Questionnaires were returned by 413/482 (85.7%) families. Breath-holding was reported for 68.8%, hyperventilation for 46.4% and abdominal bloating for 42.4%. Hyperventilation was more prevalent and frequent in those younger than 7 years of age and abdominal bloating in those aged over 20 years. Onset of breathing irregularities usually occurred during early childhood. Caregivers perceived that daily life was considerably impacted for almost half (44.1%) of those with abdominal bloating and in just over than a third of those with breath-holding (35.8%) or hyperventilation (35.1%). Although perceived impact was broadly comparable between age and mutation groups for breath-holding, hyperventilation and abdominal bloating, girls and women with a p.Arg294* mutation were considered to be more affected by all three conditions. Only 31 individuals had received medically prescribed treatments including 12 different medications, added oxygen, rebreathing apparatus or non-invasive ventilation. CONCLUSIONS: Autonomic disturbances are prevalent and burdensome in Rett syndrome. This information may guide the design of inclusion criteria and outcome measures for clinical intervention trials targeting autonomic abnormalities. Further investigation of available treatments is necessary to delineate evidence-based management pathways. En ligne : http://dx.doi.org/10.1186/s11689-017-9196-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=350

Comparing Parental Well-Being and Its Determinants Across Three Different Genetic Disorders Causing Intellectual Disability / Y. MORI in Journal of Autism and Developmental Disorders, 48-5 (May 2018)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 48-5 (May 2018) . - p.1651-1665 Titre : Comparing Parental Well-Being and Its Determinants Across Three Different Genetic Disorders Causing Intellectual Disability Type de document : Texte imprimé et/ou numérique Auteurs : Y. MORI, Auteur ; J. DOWNS, Auteur ; K. WONG, Auteur ; J. HEYWORTH, Auteur ; H. LEONARD, Auteur Article en page(s) : p.1651-1665 Langues : Anglais (eng) Mots-clés : Down syndrome  Genetic disorder  Intellectual disability  Parental well-being  Rett syndrome  Sf-12 Index. décimale : PER Périodiques Résumé : Using the Short Form 12 Health Survey this cross-sectional study examined parental well-being in caregivers of children with one of three genetic disorders associated with intellectual disability; Down syndrome, Rett syndrome and the CDKL5 disorder. Data were sourced from the Western Australian Down Syndrome (n = 291), Australian Rett Syndrome (n = 187) and International CDKL5 Disorder (n = 168) Databases. Among 596 mothers (median age, years 43.7; 24.6-72.2), emotional well-being was poorer than general female populations across age groups. Multivariate linear regression identified the poorest well-being in parents of children with the CDKL5 disorder, a rare but severe and complex encephalopathy, and negative associations with increased clinical severity irrespective of diagnosis. These findings are important for those providing healthcare and social services for these populations. En ligne : http://dx.doi.org/10.1007/s10803-017-3420-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=355 [article] Comparing Parental Well-Being and Its Determinants Across Three Different Genetic Disorders Causing Intellectual Disability [Texte imprimé et/ou numérique] / Y. MORI, Auteur ; J. DOWNS, Auteur ; K. WONG, Auteur ; J. HEYWORTH, Auteur ; H. LEONARD, Auteur . - p.1651-1665. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 48-5 (May 2018) . - p.1651-1665 Mots-clés : Down syndrome  Genetic disorder  Intellectual disability  Parental well-being  Rett syndrome  Sf-12 Index. décimale : PER Périodiques Résumé : Using the Short Form 12 Health Survey this cross-sectional study examined parental well-being in caregivers of children with one of three genetic disorders associated with intellectual disability; Down syndrome, Rett syndrome and the CDKL5 disorder. Data were sourced from the Western Australian Down Syndrome (n = 291), Australian Rett Syndrome (n = 187) and International CDKL5 Disorder (n = 168) Databases. Among 596 mothers (median age, years 43.7; 24.6-72.2), emotional well-being was poorer than general female populations across age groups. Multivariate linear regression identified the poorest well-being in parents of children with the CDKL5 disorder, a rare but severe and complex encephalopathy, and negative associations with increased clinical severity irrespective of diagnosis. These findings are important for those providing healthcare and social services for these populations. En ligne : http://dx.doi.org/10.1007/s10803-017-3420-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=355

Diagnosis of Autism Spectrum Disorder According to Maternal-Race Ethnicity and Country of Birth: A Register-Based Study / Ifrah ABDULLAHI in Journal of Autism and Developmental Disorders, 49-9 (September 2019)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 49-9 (September 2019) . - p.3611-3624 Titre : Diagnosis of Autism Spectrum Disorder According to Maternal-Race Ethnicity and Country of Birth: A Register-Based Study Type de document : Texte imprimé et/ou numérique Auteurs : Ifrah ABDULLAHI, Auteur ; K. WONG, Auteur ; Keely BEBBINGTON, Auteur ; R. MUTCH, Auteur ; N. DE KLERK, Auteur ; S. CHERIAN, Auteur ; J. DOWNS, Auteur ; H. LEONARD, Auteur ; E. J. GLASSON, Auteur Article en page(s) : p.3611-3624 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder  Immigrant  Intellectual disability  Severity  Symptomatology Index. décimale : PER Périodiques Résumé : An increased prevalence of autism spectrum disorder (ASD) among children of immigrant backgrounds has been observed but clinical profiles are rarely compared. Diagnostic data from children with ASD notified to the Western Australian Register for Autism Spectrum Disorders were analysed according to maternal-race ethnicity and country of birth. A total of 4776 children aged between 0 and 18 years diagnosed with ASD from 1999 to 2017 were included. Those born to immigrant mothers from lower income countries were younger at the time of diagnosis, had an increased risk of intellectual disability and poorer presentations in the social and communication domains. Further work is required to understand environmental influences that may affect children born to immigrant mothers and to improve monitoring and assessments. En ligne : http://dx.doi.org/10.1007/s10803-019-04068-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=405 [article] Diagnosis of Autism Spectrum Disorder According to Maternal-Race Ethnicity and Country of Birth: A Register-Based Study [Texte imprimé et/ou numérique] / Ifrah ABDULLAHI, Auteur ; K. WONG, Auteur ; Keely BEBBINGTON, Auteur ; R. MUTCH, Auteur ; N. DE KLERK, Auteur ; S. CHERIAN, Auteur ; J. DOWNS, Auteur ; H. LEONARD, Auteur ; E. J. GLASSON, Auteur . - p.3611-3624. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 49-9 (September 2019) . - p.3611-3624 Mots-clés : Autism spectrum disorder  Immigrant  Intellectual disability  Severity  Symptomatology Index. décimale : PER Périodiques Résumé : An increased prevalence of autism spectrum disorder (ASD) among children of immigrant backgrounds has been observed but clinical profiles are rarely compared. Diagnostic data from children with ASD notified to the Western Australian Register for Autism Spectrum Disorders were analysed according to maternal-race ethnicity and country of birth. A total of 4776 children aged between 0 and 18 years diagnosed with ASD from 1999 to 2017 were included. Those born to immigrant mothers from lower income countries were younger at the time of diagnosis, had an increased risk of intellectual disability and poorer presentations in the social and communication domains. Further work is required to understand environmental influences that may affect children born to immigrant mothers and to improve monitoring and assessments. En ligne : http://dx.doi.org/10.1007/s10803-019-04068-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=405

Prenatal neural origins of infant motor development: Associations between fetal brain and infant motor development / M. E. THOMASON in Development and Psychopathology, 30-3 (August 2018)  

Public ISBD [article]  inDevelopment and Psychopathology > 30-3 (August 2018) . - p.763-772 Titre : Prenatal neural origins of infant motor development: Associations between fetal brain and infant motor development Type de document : Texte imprimé et/ou numérique Auteurs : M. E. THOMASON, Auteur ; J. HECT, Auteur ; R. WALLER, Auteur ; J. H. MANNING, Auteur ; A. M. STACKS, Auteur ; Marjorie BEEGHLY, Auteur ; J. L. BOEVE, Auteur ; K. WONG, Auteur ; M. I. VAN DEN HEUVEL, Auteur ; E. HERNANDEZ-ANDRADE, Auteur ; S. S. HASSAN, Auteur ; R. ROMERO, Auteur Article en page(s) : p.763-772 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Functional circuits of the human brain emerge and change dramatically over the second half of gestation. It is possible that variation in neural functional system connectivity in utero predicts individual differences in infant behavioral development, but this possibility has yet to be examined. The current study examines the association between fetal sensorimotor brain system functional connectivity and infant postnatal motor ability. Resting-state functional connectivity data was obtained in 96 healthy human fetuses during the second and third trimesters of pregnancy. Infant motor ability was measured 7 months after birth using the Bayley Scales of Infant Development. Increased connectivity between the emerging motor network and regions of the prefrontal cortex, temporal lobes, posterior cingulate, and supplementary motor regions was observed in infants that showed more mature motor functions. In addition, females demonstrated stronger fetal-brain to infant-behavior associations. These observations extend prior longitudinal research back into prenatal brain development and raise exciting new ideas about the advent of risk and the ontogeny of early sex differences. En ligne : http://dx.doi.org/10.1017/s095457941800072x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=366 [article] Prenatal neural origins of infant motor development: Associations between fetal brain and infant motor development [Texte imprimé et/ou numérique] / M. E. THOMASON, Auteur ; J. HECT, Auteur ; R. WALLER, Auteur ; J. H. MANNING, Auteur ; A. M. STACKS, Auteur ; Marjorie BEEGHLY, Auteur ; J. L. BOEVE, Auteur ; K. WONG, Auteur ; M. I. VAN DEN HEUVEL, Auteur ; E. HERNANDEZ-ANDRADE, Auteur ; S. S. HASSAN, Auteur ; R. ROMERO, Auteur . - p.763-772. Langues : Anglais (eng) in Development and Psychopathology > 30-3 (August 2018) . - p.763-772 Index. décimale : PER Périodiques Résumé : Functional circuits of the human brain emerge and change dramatically over the second half of gestation. It is possible that variation in neural functional system connectivity in utero predicts individual differences in infant behavioral development, but this possibility has yet to be examined. The current study examines the association between fetal sensorimotor brain system functional connectivity and infant postnatal motor ability. Resting-state functional connectivity data was obtained in 96 healthy human fetuses during the second and third trimesters of pregnancy. Infant motor ability was measured 7 months after birth using the Bayley Scales of Infant Development. Increased connectivity between the emerging motor network and regions of the prefrontal cortex, temporal lobes, posterior cingulate, and supplementary motor regions was observed in infants that showed more mature motor functions. In addition, females demonstrated stronger fetal-brain to infant-behavior associations. These observations extend prior longitudinal research back into prenatal brain development and raise exciting new ideas about the advent of risk and the ontogeny of early sex differences. En ligne : http://dx.doi.org/10.1017/s095457941800072x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=366

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