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To determine if families of children with cerebral palsy living in Australia move to less remote areas between birth and 5 years. Children on the Australian Cerebral Palsy Register (n=3399) born 1996 to 2005, were assigned a remoteness... more
To determine if families of children with cerebral palsy living in Australia move to less remote areas between birth and 5 years. Children on the Australian Cerebral Palsy Register (n=3399) born 1996 to 2005, were assigned a remoteness value for family residence at birth and 5 years using a modification of the Australian Statistical Geography Standard. Each value at birth was subtracted from the value at 5 years yielding a positive difference if they moved more remotely, negative difference if they moved less remotely and a value of zero if they did not move or moved to an equally remote residence. The small net increase in remoteness across this cohort was non-significant (p=0.43). Fifty-seven per cent of families changed postcode but only 20% changed remoteness, 11% more remotely, and 9% less remotely. There was a small trend for families with a child with more impaired gross motor function (Gross Motor Function Classification System levels IV and V) to move to a less remote area. This cohort of families with children with cerebral palsy did not appear to move to less remote areas by age 5 years. Remoteness at birth and level of gross motor function seem to have little effect.
To describe cerebral palsy (CP) surveillance programmes and identify similarities and differences in governance and funding, aims and scope, definition, inclusion/exclusion criteria, ascertainment and data collection, to enhance the... more
To describe cerebral palsy (CP) surveillance programmes and identify similarities and differences in governance and funding, aims and scope, definition, inclusion/exclusion criteria, ascertainment and data collection, to enhance the potential for research collaboration. Representatives from 38 CP surveillance programmes were invited to participate in an online survey and submit their data collection forms. Descriptive statistics were used to summarize information submitted. Twenty-seven surveillance programmes participated (25 functioning registers, two closed owing to lack of funding). Their aims spanned five domains: resource for CP research, surveillance, aetiology/prevention, service planning, and information provision (in descending order of frequency). Published definitions guided decision making for the definition of CP and case eligibility for most programmes. Consent, case identification, and data collection methods varied widely. Ten key data items were collected by all programmes and a further seven by at least 80% of programmes. All programmes reported an interest in research collaboration. Despite variability in methodologies, similarities exist across programmes in terms of their aims, definitions, and data collected. These findings will facilitate harmonization of data and collaborative research efforts, which are so necessary on account of the heterogeneity and relatively low prevalence of CP.
Proportions of cases of cerebral palsy (CP) with congenital anomalies recorded in Australian CP registers range from 15% to 40%. The anomalies seen in CP are extremely variable. We have identified that CP registers often do not have... more
Proportions of cases of cerebral palsy (CP) with congenital anomalies recorded in Australian CP registers range from 15% to 40%. The anomalies seen in CP are extremely variable. We have identified that CP registers often do not have quality data on congenital anomalies, necessitating linkage with congenital anomaly registers. However, a lack of unified processes and definitions in congenital anomaly registers and data collections means that linkages are complex, need to be carefully planned, and limitations acknowledged. Historically in CP research, congenital anomalies have been classified by International Classification of Disease codes, then combined into brain and other major and minor anomalies. Systems have been developed to classify congenital anomalies into aetiologically related groups, but such a classification has yet to be trialled in CP. It is anticipated that primary prevention of a small proportion of cases of CP is possible through the primary prevention of congenital anomalies, especially those due to teratogens. Owing to the anticipated low prevalence of each subgroup, global collaboration will be required to further these lines of enquiry.
To briefly outline the strengths and limitations of cerebral palsy (CP) registers, and to report on findings of the Australian Cerebral Palsy Register (ACPR) pertaining to a population cohort of children with CP. De-identified data were... more
To briefly outline the strengths and limitations of cerebral palsy (CP) registers, and to report on findings of the Australian Cerebral Palsy Register (ACPR) pertaining to a population cohort of children with CP. De-identified data were extracted from the ACPR for people with CP in birth years 1993 to 2006, from South Australia, Victoria, and Western Australia. Live birth prevalence of CP was estimated and risk factors described. The overall birth prevalence of CP (including those whose CP was postneonatally acquired) for the 1993 to 2006 birth cohort was 2.1 per 1000 live births (95% confidence interval [CI] 2.0-2.2). Excluding cases with a known postneonatal cause, the birth prevalence for pre/perinatally acquired CP was 2.0 per 1000 live births (95% CI 1.9-2.1). A downward trend in rates of CP in those born extremely preterm was evident over at least three consecutive periods across all three regions. Most (58.6%) children were born at term (≥37wks). Male sex, early gestational age, low birthweight, and multiple birth were risk factors for CP. Overall rates of CP did not change during this period. The proportion of those with CP born extremely preterm decreased. The ACPR Group will investigate whether this pattern continues when data pertaining to the next birth cohort for all three regions becomes available.
Congenital cytomegalovirus (cCMV) infection can result in poor outcomes including cerebral palsy (CP). The aim of this study was to describe the incidence and comorbidities of CP reported to the Australian Cerebral Palsy Register (ACPR)... more
Congenital cytomegalovirus (cCMV) infection can result in poor outcomes including cerebral palsy (CP). The aim of this study was to describe the incidence and comorbidities of CP reported to the Australian Cerebral Palsy Register (ACPR) as attributed to cCMV infection. This was a retrospective population-based study. Cases were drawn from Australian state CP registers with population level ascertainment, 1993 to 2003 (n=2265; 56.4% males, Gross Motor Function Classification System [GMFCS] ratings available for Victorian cases only: 70% GMFCS levels I to III and 30% GMFCS levels IV to V). Clinical data were extracted and cases with cCMV reported as a known cause were compared with cases where cCMV was not reported. Children with cCMV (n=34; 12 males, 22 females; mean [SD] gestational age, 36.4 wk [4.4], range 24-41 wk) accounted for 1.5% of CP cases; 2.9 per 100,000 live births, (95% confidence intervals 1.9-3.9). When compared with CP cases where cCMV was not reported, proportionally, more CP cases with cCMV were born to younger mothers (p<0.001), were female (64% vs 43%, p=0.014), had spastic quadriplegia (73% vs 21%, p<0.001), required wheeled mobility i.e. GMFCS IV or V (78% vs 28%, p<0.001), had epilepsy (70% vs 30%, p<0.001), deafness (40% vs 2%, p<0.001), functional blindness (20% vs 5%, p<0.001), and severe communication impairment (71% vs 25%, p<0.001). cCMV is an important potentially preventable cause of CP and is associated with severe disability and female sex in cases reported to the ACPR. Future studies utilising prospective sample collection for cCMV testing are needed to confirm these findings.
Determining inclusion/exclusion criteria for cerebral palsy (CP) surveillance is challenging. The aims of this paper were to (1) define inclusion/exclusion criteria that have been adopted uniformly by surveillance programmes and identify... more
Determining inclusion/exclusion criteria for cerebral palsy (CP) surveillance is challenging. The aims of this paper were to (1) define inclusion/exclusion criteria that have been adopted uniformly by surveillance programmes and identify where consensus is still elusive, and (2) provide an updated list of the consensus concerning CP inclusion/exclusion when a syndrome/disorder is diagnosed. Data were drawn from an international survey of CP registers, the New South Wales CP Register (1993-2003), the Western Australian CP Register (1975-2008), and the Surveillance of CP in Europe (SCPE; 1976-1998). An expert panel used a consensus building technique, which utilized the SCPE 'decision tree' and the original 'What constitutes cerebral palsy?' paper as frameworks. CP surveillance programmes agree on key clinical criteria pertaining to the type, severity, and origin of motor disorder in CP. Further work is warranted to reach agreement for (1) minimum age of survival and maximum age of postneonatal brain injury, and (2) metabolic disorders with highly variable clinical courses/responses to treatment. One hundred and ninety-seven syndromes/disorders were reviewed and advice on their inclusion/exclusion is provided. What constitutes CP will continue to evolve as diagnostics improve. Surveillance programmes throughout the world are committed to addressing their differences regarding inclusion/exclusion criteria for the umbrella term CP.
To examine the relationships between clinical or histological chorioamnionitis and cerebral palsy using a meta-analysis approach. A systematic review of the literature appeared in PubMed between 2000 and 2009 was conducted using the... more
To examine the relationships between clinical or histological chorioamnionitis and cerebral palsy using a meta-analysis approach. A systematic review of the literature appeared in PubMed between 2000 and 2009 was conducted using the search terms "cerebral palsy" and "infection," with broad-scope variations in terminology of "white matter damage," "periventricular leukomalacia," "cystic periventricular leukomalacia," "chorioamnionitis," "intrauterine infection," "intraventricular hemorrhage," "funisitis,"…
ABSTRACT In 2010, the Australian National Health and Medical Research Council (NHMRC) endorsed Australian and New Zealand clinical practice guidelines that recommend magnesium sulphate to be given to women at risk of imminent, very early... more
ABSTRACT In 2010, the Australian National Health and Medical Research Council (NHMRC) endorsed Australian and New Zealand clinical practice guidelines that recommend magnesium sulphate to be given to women at risk of imminent, very early preterm birth (at less than 30 weeks gestation) for the prevention of death and cerebral palsy in their infants (The Antenatal Magnesium Sulphate for Neuroprotection Guideline Development Panel 2010). Now, the WISH Project (Working to Improve Survival and Health of babies born preterm), supported by the Cerebral Palsy Alliance, is working to bring Australian and New Zealand clinical practice in line with the recommendations from these guidelines (ARCH 2013).
Background/aim: Individual and workplace barriers affect uptake of evidence-based practice (EBP). This study evaluated the effects of a 1-day workshop with workplace supports on allied health professionals’ EBP knowledge and behaviour.... more
Background/aim: Individual and workplace barriers affect uptake of evidence-based practice (EBP). This study evaluated the effects of a 1-day workshop with workplace supports on allied health professionals’ EBP knowledge and behaviour. Methods: A prospective longitudinal pre-post design was used. A total of 88 allied health professionals participated. Knowledge was measured using the Adapted Fresno Test (AFT), behaviour was measured using frequency counts
Objectives: For singletons with cerebral palsy (CP) who were born at term, the goals were (1) to determine the proportion not admitted to a Special Care Unit/NICU (NICU), (2) to compare clinical descriptions of those admitted to NICUs and... more
Objectives: For singletons with cerebral palsy (CP) who were born at term, the goals were (1) to determine the proportion not admitted to a Special Care Unit/NICU (NICU), (2) to compare clinical descriptions of those admitted to NICUs and those not admitted, and (3) to identify neonatal predictors of CP among those not admitted to a NICU. Methods: A total-population
ABSTRACT In 2010, the Australian National Health and Medical Research Council (NHMRC) endorsed Australian and New Zealand clinical practice guidelines that recommend magnesium sulphate to be given to women at risk of imminent, very early... more
ABSTRACT In 2010, the Australian National Health and Medical Research Council (NHMRC) endorsed Australian and New Zealand clinical practice guidelines that recommend magnesium sulphate to be given to women at risk of imminent, very early preterm birth (at less than 30 weeks gestation) for the prevention of death and cerebral palsy in their infants (The Antenatal Magnesium Sulphate for Neuroprotection Guideline Development Panel 2010). Now, the WISH Project (Working to Improve Survival and Health of babies born preterm), supported by the Cerebral Palsy Alliance, is working to bring Australian and New Zealand clinical practice in line with the recommendations from these guidelines (ARCH 2013).
Neonatal encephalopathy, a clinical syndrome affecting term-born and late preterm newborn infants, increases the risk of perinatal death and long-term neurological morbidity, especially cerebral palsy. With the advent of therapeutic... more
Neonatal encephalopathy, a clinical syndrome affecting term-born and late preterm newborn infants, increases the risk of perinatal death and long-term neurological morbidity, especially cerebral palsy. With the advent of therapeutic hypothermia, a treatment designed for hypoxic or ischaemic injury, associated mortality and morbidity rates have decreased. Unfortunately, only about one in eight neonates (95% confidence interval) who meet eligibility criteria for therapeutic cooling apparently benefit from the treatment. Studies of infants in representative populations indicate that neonatal encephalopathy is a potential result of a variety of antecedents and that asphyxial complications at birth account for only a small percentage of neonatal encephalopathy. In contrast, clinical case series suggest that a large proportion of neonatal encephalopathy is hypoxic or ischaemic, and trials of therapeutic hypothermia are specifically designed to include only infants exposed to hypoxia or ischaemia. This review addresses the differences, definitional and methodological, between infants studied and investigations undertaken, in population studies compared with cooling trials. It raises the question if there may be subgroups of infants with a clinical diagnosis of hypoxic-ischaemic encephalopathy (HIE) in whom the pathobiology of neonatal neurological depression is not fundamentally hypoxic or ischaemic and, therefore, for whom cooling may not be beneficial. In addition, it suggests approaches to future trials of cooling plus adjuvant therapy that may contribute to further improvement of care for these vulnerable neonates.
Abstract Objective: To systematically review meta-analyses (MAs) and randomised controlled trials (RCTs) of interventions for infants at risk of cerebral palsy (CP), to determine if consensus exists in study end-points. Methods: MAs... more
Abstract Objective: To systematically review meta-analyses (MAs) and randomised controlled trials (RCTs) of interventions for infants at risk of cerebral palsy (CP), to determine if consensus exists in study end-points. Methods: MAs within the "Neonatal" and "Pregnancy and Childbirth" Review Groups in Cochrane Database of Systematic Reviews (to June 2011) were included if they contained risk factors for CP as a study end-point, and were either published in 2010 or 2011 or cited >20 times in Sciverse Scopus. Up to 20 RCTs from each MA were included. Outcome measures, definitions and cut-points for ordinal groupings were extracted from MAs and RCTs and frequencies calculated. Results: Twenty-two MAs and 165 RCTs were appraised. High consistency existed in types of outcome domains listed as important in MAs. For 10/16 most frequently cited outcome domains, <50% of RCTs contributed data for meta-analyses. Low consistency in outcome definitions, measures, cut-points in RCTs and long-term follow-up prohibited data aggregation. Conclusions: Variation in outcome measurement and long-term follow up has hampered the ability of RCTs to contribute data on important outcomes for CP, resulting in lost opportunities to measure the impact of maternal and neonatal interventions. There is an urgent need for and long-term follow up of these interventions and an agreed set of standardised and clinically relevant common data elements for study end-points.
Cerebral palsy (CP) is the most severe physical disability within the spectrum of developmental delay. CP is an umbrella term describing a group of motor disorders, accompanied by many associated impairments. The disability is a result of... more
Cerebral palsy (CP) is the most severe physical disability within the spectrum of developmental delay. CP is an umbrella term describing a group of motor disorders, accompanied by many associated impairments. The disability is a result of injuries to the developing brain occurring any time from the first trimester of pregnancy through to early childhood. However, for the great majority, their full etiological causal pathway remains unclear. It is important to discriminate as early as possible between: (a) mild or nonspecific motor delay, (b) developmental coordination disorder, (c) syndromes, (d) metabolic and progressive conditions, and (e) CP with its various motor types and distributions. The most promising predictive tool for CP is the general movements assessment, which assesses the quality of spontaneous movements of infants in the first 4 months of life. We propose a change in diagnostic practice. We recommend a shift away from referral for intervention following a formal (mo...
To examine the antecedents of cerebral palsy and of perinatal death in singletons born at or after 35 weeks of gestation. From a total population of singletons born at or after 35 weeks of gestation, we identified 494 with cerebral palsy... more
To examine the antecedents of cerebral palsy and of perinatal death in singletons born at or after 35 weeks of gestation. From a total population of singletons born at or after 35 weeks of gestation, we identified 494 with cerebral palsy and 508 neonates in a matched control group, 100 neonatal deaths, and 73 intrapartum stillbirths (all deaths in selected birth years). Neonatal death and cerebral palsy were categorized as without encephalopathy, after neonatal encephalopathy, or after neonatal encephalopathy considered hypoxic-ischemic. We examined the contribution of potentially asphyxial birth events, inflammation, fetal growth restriction, and birth defects recognized by age 6 years to each of these outcomes and to intrapartum stillbirths. The odds of total cerebral palsy after potentially asphyxial birth events or inflammation were modestly increased (odds ratio [OR] 1.9, 95% confidence interval [CI] 1.1-3.2 and OR 2.2, 95% CI 1.0-4.2, respectively). However, potentially asphyx...
To examine the relationships between clinical or histological chorioamnionitis and cerebral palsy using a meta-analysis approach. A systematic review of the literature appeared in PubMed between 2000 and 2009 was conducted using the... more
To examine the relationships between clinical or histological chorioamnionitis and cerebral palsy using a meta-analysis approach. A systematic review of the literature appeared in PubMed between 2000 and 2009 was conducted using the search terms "cerebral palsy" and "infection," with broad-scope variations in terminology of "white matter damage," "periventricular leukomalacia," "cystic periventricular leukomalacia," "chorioamnionitis," "intrauterine infection," "intraventricular hemorrhage," "funisitis," "fetal inflammatory…
The aim of this study was to conduct a systematic review in order to identify the risk factors for cerebral palsy (CP) in children born at term. The secondary aim was to ascertain if the potential for prevention of these risk factors has... more
The aim of this study was to conduct a systematic review in order to identify the risk factors for cerebral palsy (CP) in children born at term. The secondary aim was to ascertain if the potential for prevention of these risk factors has been adequately explored. A MEDLINE search up to 31 July 2011 was completed, following the Meta-Analysis of Observational Studies in Epidemiology guidelines. Publications were reviewed to identify those with both a primary aim of identifying risk factors for all children or term-born children with CP and a cohort or case-control study design. Studies were examined for potential chance or systematic bias. The range of point estimates of relative risk is reported. From 21 articles meeting inclusion/exclusion criteria and at low risk of bias, data from 6297 children with CP and 3 804 791 children without CP were extracted. Ten risk factors for term-born infants were statistically significant in each study: placental abnormalities, major and minor birth defects, low birthweight, meconium aspiration, instrumental/emergency Caesarean delivery, birth asphyxia, neonatal seizures, respiratory distress syndrome, hypoglycaemia, and neonatal infections. Strategies for possible prevention currently exist for three of these. Ten consistent risk factors have been identified, some with potential for prevention. Efforts to prevent these risk factors to interrupt the pathway to CP should be extended.
'Proposed new definition of cerebral palsy does not solve any of the problems of existing definitions' SIR–The proposed new definition1 set out in the first sentence (32 words), is no... more
'Proposed new definition of cerebral palsy does not solve any of the problems of existing definitions' SIR–The proposed new definition1 set out in the first sentence (32 words), is no shorter than that of Mutch et al.2 (31 words) and does not solve any of the problems of existing ...
To critically assess and develop recommendations for professional development (PD) for occupational therapists in a multisite specialist cerebral palsy occupational therapy service. Quality improvement project based on principles of... more
To critically assess and develop recommendations for professional development (PD) for occupational therapists in a multisite specialist cerebral palsy occupational therapy service. Quality improvement project based on principles of participatory action research: audit of PD resources/activity; stakeholder consultations and literature review. The PD program goal, resources, strategies, activities and evaluations conducted at the centre were identified and described. Areas for improvement were identified by critically considering the PD program in the context of reviewed literature. There was an assumption that personal change through PD would help attain the organisational goal of clinically competent practitioners who use evidence-based practice in a family-centred context. Future PD plans and evaluations need to explicitly address this assumption. The use of structured reflection and the 'clinical reasoning' conceptual framework was recommended as one way to help personal change from PD to have workplace impact. This project provides a precedent and guide to occupational therapy PD planners regarding a whole-of-organisation approach to developing and maintaining competence through PD.
Individual and workplace barriers affect uptake of evidence-based practice (EBP). This study evaluated the effects of a 1-day workshop with workplace supports on allied health professionals' EBP knowledge... more
Individual and workplace barriers affect uptake of evidence-based practice (EBP). This study evaluated the effects of a 1-day workshop with workplace supports on allied health professionals' EBP knowledge and behaviour. A prospective longitudinal pre-post design was used. A total of 88 allied health professionals participated. Knowledge was measured using the Adapted Fresno Test (AFT), behaviour was measured using frequency counts of presentations using EBP methodologies and critically appraised topics (CATs) were produced. Mean differences were analysed using paired t-tests. EBP knowledge significantly improved immediately after education on the AFT (from 36.67 to 46.84/156) a mean change of 10.17 points (95% confidence interval (CI): 7.19-13.50) (P <0.001). Behaviour also changed over 18 months. EBP content in presentations increased from 3 to 100% (t = 24.39, P <0.001, 95%CI: 0.86-1.03). CATs produced significantly increased by 0.26 per head (t =5.55, P <0.001, 95% CI: 0.17-0.35). Education with workplace supports (supervision, incentives, resource allocation and working groups) may lead to improvements in EBP knowledge and implementation.
Participation of people with disabilities is influenced by environmental and contextual factors. Disability awareness programmes aim to increase knowledge and acceptance of disability. This study evaluated a disability awareness programme... more
Participation of people with disabilities is influenced by environmental and contextual factors. Disability awareness programmes aim to increase knowledge and acceptance of disability. This study evaluated a disability awareness programme for students aged 9-11 in Australia. Pre-post questionnaires and focus groups evaluated the programme. The intervention took a cognitive-behavioural approach including a person with a disability co-presenting. Students (n = 147) participated in two sessions of discussions, written activities, demonstrations and disability simulation activities. Significant improvements (p < 0.001) in knowledge, attitudes and acceptance of disability were evident immediately following the intervention. Focus group analyses further demonstrated these findings. A brief disability awareness programme for children improved knowledge, attitudes and acceptance of disability in the short-term. Further research is required to identify the potential impact of such programmes on inclusion and social participation of people with disabilities both inside and outside of the school setting.
Our aim was to build on previous research indicating that rates of cerebral palsy (CP) in the Australian state of Victoria are declining, and examine whether severity of impairments is also decreasing. Data on individuals with CP were... more
Our aim was to build on previous research indicating that rates of cerebral palsy (CP) in the Australian state of Victoria are declining, and examine whether severity of impairments is also decreasing. Data on individuals with CP were extracted from the Victorian Cerebral Palsy Register for birth years 1983 to 2009. The yearly rates of dichotomized categories for gross motor function, motor laterality, intellectual impairment, and epilepsy per 1000 neonatal survivors and proportions in the CP cohort were tabulated and plotted by birth gestation. Linear regression modelling was used to fit prediction curves; likelihood ratio tests were used to test for differences in trends between impairment severity groups. Since the mid-1990s, CP rates declined in neonatal survivors of birth at all gestations. Our data suggest that the decreasing CP rates were associated with relatively greater decreases in the rates of Gross Motor Function Classification System levels III to V, bilateral CP, epil...