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Featured researches published by John Andersen.


International Journal of Stroke | 2016

Canadian stroke best practice recommendations: Stroke rehabilitation practice guidelines, update 2015:

Debbie Hebert; M. Patrice Lindsay; Amanda McIntyre; Adam Kirton; Peter Rumney; Stephen D. Bagg; Mark Bayley; Dar Dowlatshahi; Sean P. Dukelow; Maridee Garnhum; Ev Glasser; Mary-Lou Halabi; Ester Kang; Marilyn MacKay-Lyons; Rosemary Martino; Annie Rochette; Sarah Rowe; Nancy M. Salbach; Brenda Semenko; Bridget Stack; Luchie Swinton; Valentine Weber; Matthew Mayer; Sue Verrilli; Gabrielle deVeber; John Andersen; Karen Barlow; Caitlin Cassidy; Marie-Emmanuelle Dilenge; Darcy Fehlings

Stroke rehabilitation is a progressive, dynamic, goal-orientated process aimed at enabling a person with impairment to reach their optimal physical, cognitive, emotional, communicative, social and/or functional activity level. After a stroke, patients often continue to require rehabilitation for persistent deficits related to spasticity, upper and lower extremity dysfunction, shoulder and central pain, mobility/gait, dysphagia, vision, and communication. Each year in Canada 62,000 people experience a stroke. Among stroke survivors, over 6500 individuals access in-patient stroke rehabilitation and stay a median of 30 days (inter-quartile range 19 to 45 days). The 2015 update of the Canadian Stroke Best Practice Recommendations: Stroke Rehabilitation Practice Guidelines is a comprehensive summary of current evidence-based recommendations for all members of multidisciplinary teams working in a range of settings, who provide care to patients following stroke. These recommendations have been developed to address both the organization of stroke rehabilitation within a system of care (i.e., Initial Rehabilitation Assessment; Stroke Rehabilitation Units; Stroke Rehabilitation Teams; Delivery; Outpatient and Community-Based Rehabilitation), and specific interventions and management in stroke recovery and direct clinical care (i.e., Upper Extremity Dysfunction; Lower Extremity Dysfunction; Dysphagia and Malnutrition; Visual-Perceptual Deficits; Central Pain; Communication; Life Roles). In addition, stroke happens at any age, and therefore a new section has been added to the 2015 update to highlight components of stroke rehabilitation for children who have experienced a stroke, either prenatally, as a newborn, or during childhood. All recommendations have been assigned a level of evidence which reflects the strength and quality of current research evidence available to support the recommendation. The updated Rehabilitation Clinical Practice Guidelines feature several additions that reflect new research areas and stronger evidence for already existing recommendations. It is anticipated that these guidelines will provide direction and standardization for patients, families/caregiver(s), and clinicians within Canada and internationally.


European Journal of Human Genetics | 2009

Atypical Rett syndrome with selective FOXG1 deletion detected by comparative genomic hybridization: case report and review of literature.

Francois Dominique Jacob; Vijay Ramaswamy; John Andersen; Francois V. Bolduc

Rett syndrome is a severe neurodegenerative disorder characterized by acquired microcephaly, communication dysfunction, psychomotor regression, seizures and stereotypical hand movements. Mutations in methyl CpG binding protein 2 (MECP2) are identified in most patients with classic Rett syndrome. Genetic studies in patients with a Rett variant have expanded the spectrum of underlying genetic etiologies. Recently, a deletion encompassing several genes in the long arm of chromosome 14 has been associated with the congenital Rett-syndrome phenotype. Using array-based comparative genomic hybridization, we identified a 3-year-old female with a Rett-like syndrome carrying a de novo single-gene deletion of FOXG1. Her presentation included intellectual disability, epilepsy and a Rett-like phenotype. The variant features included microcephaly at birth and prominent synophrys. Our results confirm that congenital Rett syndrome can be caused by copy-number variation in FOXG1 and expand the clinical phenotypic spectrum of FOXG1 defect in humans.


Child Care Health and Development | 2012

Are family-centred principles, functional goal setting and transition planning evident in therapy services for children with cerebral palsy?

Johanna Darrah; Lesley Wiart; Joyce Magill-Evans; Lynne Ray; John Andersen

BACKGROUND Family-centred service, functional goal setting and co-ordination of a childs move between programmes are important concepts of rehabilitation services for children with cerebral palsy identified in the literature. We examined whether these three concepts could be objectively identified in programmes providing services to children with cerebral palsy in Alberta, Canada. METHODS Programme managers (n= 37) and occupational and physical therapists (n= 54) representing 59 programmes participated in individual 1-h semi-structured interviews. Thirty-nine parents participated in eleven focus groups or two individual interviews. Evidence of family-centred values in mission statements and advisory boards was evaluated. Therapists were asked to identify three concepts of family-centred service and to complete the Measures of Process of Care for Service Providers. Therapists also identified therapy goals for children based on clinical case scenarios. The goals were coded using the components of the International Classification of Functioning Disability and Health. Programme managers and therapists discussed the processes in their programmes for goal setting and for preparing children and their families for their transition to other programmes. Parents reflected on their experiences with their childs rehabilitation related to family-centredness, goal setting and co-ordination between programmes. RESULTS All respondents expressed commitment to the three concepts, but objective indicators of family-centred processes were lacking in many programmes. In most programmes, the processes to implement the three concepts were informal rather than standardized. Both families and therapists reported limited access to general information regarding community supports. CONCLUSION Lack of formal processes for delivery of family-centred service, goal-setting and co-ordination between childrens programmes may result in inequitable opportunities for families to participate in their childrens rehabilitation despite attending the same programme. Standardized programme processes and policies may provide a starting point to ensure that all families have equitable opportunities to participate in their childs rehabilitation programme.


Seminars in Pediatric Neurology | 2013

Training to Enhance Walking in Children With Cerebral Palsy: Are We Missing the Window of Opportunity?

Jaynie F. Yang; Donna Livingstone; Kelly Brunton; Dasom Kim; Barbara Lopetinsky; François D. Roy; Ephrem Zewdie; Susan K. Patrick; John Andersen; Adam Kirton; Joe-Man Watt; Jerome Y. Yager; Monica A. Gorassini

The objective of this paper is to (1) identify from the literature a potential critical period for the maturation of the corticospinal tract (CST) and (2) report pilot data on an intensive, activity-based therapy applied during this period, in children with lesions to the CST. The best estimate of the CST critical period for the legs is when the child is younger than 2 years of age. Previous interventions for walking in children with CST damage were mainly applied after this age. Our preliminary results with training children younger than 2 years showed improvements in walking that exceeded all previous reports. Further, we refined techniques for measuring motor and sensory pathways to and from the legs, so that changes can be measured at this young age. Previous activity-based therapies may have been applied too late in development. A randomized controlled trial is now underway to determine if intensive leg therapy improves the outcome of children with early stroke.


Seminars in Pediatric Neurology | 2013

Intensive Upper Extremity Training for Children with Hemiplegia: From Science to Practice

John Andersen; Annette Majnemer; Kathleen O'Grady; Andrew M. Gordon

For children with hemiplegic cerebral palsy, bimanual abilities are central to independent function. Over the last decade, considerable attention has been given to 2 forms of extended practice therapy for the upper limb, constraint-induced movement therapy and intensive bimanual training. This article reviews the varying nature of these 2 approaches and the existing scientific rationale supporting them. Comparisons between these 2 intensive upper extremity training approaches indicate similar improvements in unimanual capacity and bimanual performance outcomes; however, when considering participant and caregiver goal achievement, evidence favors a bimanual approach. Careful selection of either therapy for this population requires consideration of individual and contextual factors in relation to treatment goals. The key ingredients and dose responses remain unknown. Treatment intensity, intrinsic motivation, and individualization of treatment are hypothesized as requisite in either approach.


Canadian Journal of Neurological Sciences | 2017

Prevalence Estimate of Cerebral Palsy in Northern Alberta: Births, 2008-2010

Charlene M.T. Robertson; M. Florencia Ricci; Kathleen O’Grady; Maryam Oskoui; Helly R. Goez; Jerome Y. Yager; John Andersen

OBJECTIVES The objectives of this study were to determine prevalence estimates of cerebral palsy (CP) among 5-year-old children in northern Alberta; to provide congenital, gestational age- and birth weight-specific, and postneonatal CP rates; and to describe motor subtypes and function. METHODS This population-based prevalence estimate study, part of the Canadian Cerebral Palsy Registry, reports confirmed CP diagnoses at age 5 years made by pediatric rehabilitation and child neurology specialists. Prevalence rates with 95% confidence intervals (CIs) used Alberta government denominators of same-age children and live births. RESULTS The Northern Alberta CP rate (birth years, 2008-2010) for 173 5-year-old children is 2.22 (95% CI 2.12, 2.32) per 1000 5-year-old children. The congenital CP rate is 1.99 (95% CI, 1.89-2.09) per 1000 live births; unilateral congenital CP, 1.0 (95% CI, 0.64-1.36) per 1000 live births; and postneonatal CP, 0.12 (95% CI, 0.1-0.14) per 1000 live births. Gestational age-specific rates are similar: age <28 weeks, 27.2 (95% CI, 23.05-31.35) and 28 to 31 weeks, 29.5 (95% CI, 25.78-33.22). Motor subtypes for 169 children (data missing, 4; male, 97; postnatal, 9) are: spastic, 148 (87.6%) including 31 (20.9%) with diplegia, 10 (6.8%) triplegia, 33 (22.2%) quadriplegia, 74 (50%) hemiplegia/monoplegia); and dyskinetic, 18 (10.6%) and ataxic, 3 (1.8%). A total of 107 (63.3%) ambulate without assistive devices and 111(65.7%) handle most objects with their hands independently. CONCLUSIONS This is the fourth Canadian CP prevalence study; one from Quebec used a similar case ascertainment approach and two 1980s studies from Alberta and British Columbia used administrative databases. Northern Alberta CP rates are comparable with other developed countries. The hemiplegic subtype is the most common. Rates among preterm children have declined but are similar for the <28 and 28 to 31 gestation-week groups.


Pediatrics | 2015

Chronic Neuromotor Disability After Complex Cardiac Surgery in Early Life.

M. Florencia Ricci; John Andersen; Ari R. Joffe; Man-Joe Watt; Elham Khodayari Moez; Irina Dinu; Gonzalo Garcia Guerra; David B. Ross; Ivan M. Rebeyka; Charlene M.T. Robertson

BACKGROUND AND OBJECTIVES: Little is known about chronic neuromotor disability (CND) including cerebral palsy and motor impairments after acquired brain injury in children surviving early complex cardiac surgery (CCS). We sought to determine the frequency and presentation of CND in this population while exploring potentially modifiable acute care predictors. METHODS: This prospective follow-up study included 549 children after CCS requiring cardiopulmonary bypass at ≤6 weeks of age. Groups included those with only 1 CCS, mostly biventricular CHD, and those with >1 CCS, predominantly single ventricle defects. At 4.5 years of age, 420 (94.6%) children received multidisciplinary assessment. Frequency of CND is given as percentage of assessed survivors. Predictors of CND were analyzed using multiple logistic regression analysis. RESULTS: CND occurred in 6% (95% confidence interval [CI] 3.7%–8.2%) of 4.5-year survivors; for 1 CCS, 4.2% (CI 2.3%–6.1%) and >1, 9.8% (CI 7%–12.6%). CND presentation showed: hemiparesis, 72%; spasticity, 80%; ambulation, 72%; intellectual disability, 44%; autism, 16%; epilepsy, 12%; permanent vision and hearing impairment, 12% and 8%, respectively. Overall, 32% of presumed causative events happened before first CCS. Independent odds ratio for CND are age (days) at first CCS, 1.08 (CI 1.04–1.12; P < .001); highest plasma lactate before first CCS (mmol/L), 1.13 (CI 1.03–1.23; P = 0.008); and >1 CCS, 3.57 (CI 1.48–8.9; P = .005). CONCLUSIONS: CND is not uncommon among CCS survivors. The frequency of associated disabilities characterized in this study informs pediatricians caring for this vulnerable population. Shortening the waiting period and reducing preoperative plasma lactate levels at first CCS may assist in reducing the frequency of CND.


Health & Social Care in The Community | 2010

Cross-ministerial collaboration related to paediatric rehabilitation for children with disabilities and their families in one Canadian province.

Lesley Wiart; John Church; Johanna Darrah; Lynne Ray; Joyce Magill-Evans; John Andersen

The delivery of paediatric rehabilitation services is complex due to the involvement of different service sectors and diverse models of care. Parents of children with disabilities find it challenging to navigate successfully through complicated service delivery systems. Cross-sectoral collaboration to improve continuity of care for children with disabilities and their families is viewed as ideal in public policies. The purpose of this research was to explore how ministerial cultures, processes and structures influence inter-ministerial collaboration for the purpose of enhancing continuity of care for children with disabilities and their families in a Western Canadian province. Six key informants from three government Ministries that funded paediatric rehabilitation services participated in individual, semi-structured interviews between January and May of 2007. Nineteen provincial public policy documents were reviewed. Halls framework guided the analysis of the key informant interviews and policy documents. Influences of organisational culture, processes and structures on cross-ministerial collaboration were classified into the categories of ideas-values and beliefs that underlie policy development, interests-influence of various policy actors and institutions-structures and processes used to deliver public policy. Fundamental ideological and structural differences were apparent across the three ministries that affected the ease of inter-ministerial collaboration towards ensuring continuity of care for children with disabilities. Variations in ideas (philosophy and values) and institutions (geography and service delivery structure, relationships with regional governance, mission and function, choice of policy instruments and financial processes) are presented and implications for service delivery are explored.


Pediatric Neurology | 2018

The Association Between Maternal Age and Cerebral Palsy Risk Factors

Rilla Schneider; Pamela Ng; Xun Zhang; John Andersen; David Buckley; Darcy Fehlings; Adam Kirton; Ellen Wood; Esias van Rensburg; Michael Shevell; Maryam Oskoui

BACKGROUND Advanced maternal age is associated with higher frequencies of antenatal and perinatal conditions, as well as a higher risk of cerebral palsy in offspring. We explore the association between maternal age and specific cerebral palsy risk factors. METHODS Data were extracted from the Canadian Cerebral Palsy Registry. Maternal age was categorized as ≥35 years of age and less than 20 years of age at the time of birth. Chi-square and multivariate logistic regressions were performed to calculate odds ratios and their 95% confidence intervals. RESULTS The final sample consisted of 1391 children with cerebral palsy, with 19% of children having mothers aged 35 or older and 4% of children having mothers below the age of 20. Univariate analyses showed that mothers aged 35 or older were more likely to have gestational diabetes (odds ratio 1.9, 95% confidence interval 1.3 to 2.8), to have a history of miscarriage (odds ratio 1.8, 95% confidence interval 1.3 to 2.4), to have undergone fertility treatments (odds ratio 2.4, 95% confidence interval 1.5 to 3.9), and to have delivered by Caesarean section (odds ratio 1.6, 95% confidence interval 1.2 to 2.2). These findings were supported by multivariate analyses. Children with mothers below the age of 20 were more likely to have a congenital malformation (odds ratio 2.4, 95% confidence interval 1.4 to 4.2), which is also supported by multivariate analysis. CONCLUSIONS The risk factor profiles of children with cerebral palsy vary by maternal age. Future studies are warranted to further our understanding of the compound causal pathways leading to cerebral palsy and the observed greater prevalence of cerebral palsy with increasing maternal age.


Pediatric Neurology | 2017

Neonatal Infection in Children with Cerebral Palsy: a Registry-Based Cohort Study

Anne-Sophie Smilga; Jarred Garfinkle; Pamela Ng; John Andersen; David Buckley; Darcy Fehlings; Adam Kirton; Ellen Wood; Esias van Rensburg; Michael Shevell; Maryam Oskoui

BACKGROUND The goal of this study was to explore the association between neonatal infection and outcomes in children with cerebral palsy. METHODS We conducted a retrospective cohort study using the Canadian CP Registry. Neonatal infection was defined as meeting one of the following criteria: (1) septicemia, (2) septic shock, or (3) administration of antibiotics for ≥10 days. Phenotypic profiles of children with cerebral palsy with and without an antecedent neonatal infection were compared. Subgroup analysis was performed, stratified by gestational age (term versus preterm). RESULTS Of the 1229 registry participants, 505 (41.1%) were preterm, and 192 (15.6%) met the criteria for neonatal infection with 29% of preterm children having a neonatal infection compared with 6.5% in term-born children. Children with prior neonatal infection were more likely to have a white matter injury (odds ratio 2.2, 95% confidence interval 1.5 to 3.2), spastic diplegic neurological subtype (odds ratio 1.6, 95% confidence interval 1.1 to 2.3), and sensorineural auditory impairment (odds ratio 2.1, 95% confidence interval 1.4 to 3.3). Among preterm children, neonatal infection was not associated with a difference in phenotypic profile. Term-born children with neonatal infection were more likely to have spastic triplegia or quadriplegia (odds ratio 2.4, 95% confidence interval 1.3 to 4.3), concomitant white matter and cortical injury (odds ratio 4.1, 95% confidence interval 1.6 to 10.3), and more severe gross motor ability (Gross Motor Function Classification System IV to V) (odds ratio 2.6, 95% confidence interval 1.4 to 4.8) compared with preterm children. CONCLUSIONS Findings suggest a role of systemic infection on the developing brain in term-born infants, and the possibility to develop targeted therapeutic and preventive strategies to reduce cerebral palsy morbidity.

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Joe Watt

University of Alberta

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Darcy Fehlings

Holland Bloorview Kids Rehabilitation Hospital

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Maryam Oskoui

Montreal Children's Hospital

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