Publications by authors named "Synnes A"

Background And Objectives: The likelihood and severity of neurodevelopmental impairment (NDI) affects critical health care decisions. NDI definitions were developed without parental perspectives. We investigated the agreement between parental vs medical classification of NDI among children born preterm.

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Implementation of infant pain practice change (ImPaC) is a multifaceted web-based resource to support pain practice change in neonatal intensive care unit (NICU). We evaluated the (1) intervention effectiveness and (2) implementation effectiveness of ImPaC using a hybrid type 1 effectiveness-implementation study (ie, cluster randomized controlled trial and longitudinal descriptive study). Eligible level 2 and 3 Canadian NICUs were randomized to intervention (INT) or waitlisted to usual care (UC) for 6 months.

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Objective: To examine sex differences in neurodevelopmental outcomes and brain development from early life to 8 years in males and females born preterm.

Study Design: This was a prospective cohort study of infants born very preterm (24-32 weeks of gestation) and followed to 8 years with standardized measures of neurodevelopment. Brain magnetic resonance imaging scans were performed soon after birth, term-equivalent age, and 8 years.

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Introduction: Oral sucrose is repeatedly administered to neonates in the neonatal intensive care unit (NICU) to treat pain from commonly performed procedures; however, there is limited evidence on its long-term cumulative effect on neurodevelopment. We examined the association between total sucrose volumes administered to preterm neonates for pain mitigation in the NICU and their neurodevelopment at 18 months of corrected age (CA).

Methods: A prospective longitudinal single-arm observational study that enrolled hospitalised preterm neonates <32 weeks of gestational age at birth and <10 days of life was conducted in four level III NICUs in Canada.

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Objective: To evaluate whether white matter injury (WMI) volumes and spatial distribution, which are important predictors of neurodevelopmental outcomes in preterm infants, have changed over a period of 15 years.

Study Design: Five hundred and twenty-eight infants born <32 weeks' gestational age from 2 sequential prospective cohorts (cohort 1: 2006 through 2012; cohort 2: 2014 through 2019) underwent early-life (median 32.7 weeks postmenstrual age) and/or term-equivalent-age MRI (median 40.

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Aim: Parents of children born preterm have identified outcomes to be measured for audit and research at 18-24 months of age: child well-being, quality of life/function, socio-emotional/behavioural outcomes, respiratory, feeding, sleeping, and caregiver mental health. The aim was to identify the best tools to measure these seven domains.

Methods: Seven working groups completed literature reviews and evaluated potential tools to measure these outcomes in children aged 18-24 months.

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Background And Objectives: We examined associations of white matter injury (WMI) and periventricular hemorrhagic infarction (PVHI) volume and location with 18-month neurodevelopment in very preterm infants.

Methods: A total of 254 infants born <32 weeks' gestational age were prospectively recruited across 3 tertiary neonatal intensive care units (NICUs). Infants underwent early-life (median 33.

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Although sucrose is widely administered to hospitalized infants for single painful procedures, total sucrose volume during the entire neonatal intensive care unit (NICU) stay and associated adverse events are unknown. In a longitudinal observation study, we aimed to quantify and contextualize sucrose administration during the NICU stay. Specifically, we investigated the frequency, nature, and severity of painful procedures; proportion of procedures where neonates received sucrose; total volume of sucrose administered for painful procedures; and incidence and type of adverse events.

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Children born very low gestational age (VLGA, 29-32 weeks gestational age [GA]) display slower processing speed and altered hypothalamic pituitary adrenal (HPA) axis function, with greater effects in those born extremely low gestational age (ELGA; 24-28 weeks GA). We investigated trajectories of HPA axis activity as indexed by cortisol output and patterns across cognitive assessment at ages 1.5, 3 and 4.

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Objective: Literature on health status (HS) and health-related quality of life of preterm survivors at preschool age is sparse. Further, little is known about the relationship between parent-reported HS outcomes and standardised neurodevelopmental outcomes measured in preterm survivors at preschool age. Our objective was to evaluate parent-reported child HS outcomes and their relationship to neurodevelopmental outcomes at 36 months of age in very preterm survivors.

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The absence of functional top predators has been proposed as a mechanism acting to shape fish assemblages in temperate marine ecosystems, with cascading effects on lower trophic levels. We explore this scenario by comparing the trophic and functional status of fish assemblages in Norwegian marine national parks, open to fishing, to a nearby coastal seascape that harbors a system of marine protected areas (MPAs) including a no-take zone. Demersal fish assemblages were sampled using fyke nets over three consecutive seasons.

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Introduction: Sepsis and intraventricular hemorrhage (IVH) are associated with poorer long-term neurodevelopmental outcomes in very preterm infants (VPIs), but less is known about the long-term effect of meningitis and the combined impact of both meningitis and IVH. Our objective was to examine the long-term neurodevelopmental outcomes of VPIs with late onset sepsis and meningitis, with and without IVH, in Canada.

Methods: We conducted a retrospective cohort study of all infants <29 weeks GA who were admitted to 26 tertiary-level neonatal intensive care units in the Canadian Neonatal Network (CNN) and Canadian Neonatal Follow-Up Network (CNFUN) databases, from January 1, 2010, to December 31, 2016.

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Objectives: We determined whether (1) major surgery is associated with an increased risk for brain injury and adverse neurodevelopment and (2) brain injury modifies associations between major surgery and neurodevelopment in very preterm infants.

Methods: Prospectively enrolled infants across 3 tertiary neonatal intensive care units underwent early-life and/or term-equivalent age MRI to detect moderate-severe brain injury. Eighteen-month neurodevelopmental outcomes were assessed with Bayley Scales of Infant and Toddler Development, third edition.

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Background And Objectives: Early exposure to analgesics and sedatives is a key concern for later learning disorders in children. The hippocampus, a key region for learning and memory, may be selectively affected by exposure to benzodiazepines that are commonly used for sedation, particularly in the neonatal period. In this prospective cohort study, the long-term association of neonatal midazolam exposure, a widely used benzodiazepine in neonatal intensive care, with school age hippocampal growth was examined.

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Exposure to pain-related stress from frequent invasive procedures in the neonatal intensive care unit (NICU) has been associated with altered physiological stress regulation, neurodevelopment, and behavior in children born very preterm (≤32 weeks gestation). Previously, in a cohort born 2003-2006 (Cohort 1), we found that, at 18 months corrected age (CA), children born extremely low gestational age (ELGA; 24-28 weeks) and very low gestational age (VLGA; 29-32 weeks), had higher pre-test cortisol levels and a different pattern of cortisol output across a developmental assessment involving cognitive challenge compared to children born full-term (FT; 39-41 weeks). Also, greater neonatal pain-related stress exposure among the preterm children was related to higher pre-test cortisol levels.

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Neurodevelopmental challenges in children born very preterm are common and not improving. This study tested the feasibility of using Evidence-based Practice to Improve Quality (EPIQ), a proven quality improvement technique that incorporates scientific evidence to target improving language abilities in very preterm populations in 10 Canadian neonatal follow-up programs. Feasibility was defined as at least 70% of sites completing four intervention cycles and 75% of cycles meeting targeted aims.

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Objective: To determine how neonatal growth velocity affects the association between birth weight and neurodevelopmental outcomes in infants born preterm.

Study Design: This study is a secondary analysis of the Maternal Omega-3 Supplementation to Reduce Bronchopulmonary Dysplasia in Very Preterm Infants (MOBYDIck) randomized multicenter trial conducted in breastfed infants born at <29 weeks of gestation, whose mothers were supplemented with docosahexaenoic acid or placebo during the neonatal period. Neurodevelopmental outcomes were assessed at 18-22 months of corrected age using the Bayley-III cognitive and language composite scores.

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Article Synopsis
  • - The study focuses on the perspectives of parents and stakeholders regarding the classification of severe neurodevelopmental impairment in children born very preterm, which includes conditions like cerebral palsy, developmental delay, and sensory impairments.
  • - Researchers distributed clinical scenarios of 18-month-old children with different impairments and a typically developing child to 827 participants, who rated their health and severity of conditions on a scale from 0 to 10.
  • - Findings showed a discrepancy between stakeholder perceptions and current research classifications, with substantial disagreement on what constitutes "severe" neurodevelopmental impairment, suggesting a need for redefinition in alignment with stakeholder views.
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Objective: To assess the longitudinal trajectory of cognitive, language, and motor outcomes from 18 months to 4.5 years of age in children born very preterm.

Study Design: This was a prospective cohort study of 163 infants born very preterm (born 24-32 weeks of gestation) followed longitudinally and assessed with neurodevelopmental scales and magnetic resonance imaging of the brain.

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Objectives: Extremely preterm babies have a significant risk of neurodevelopmental impairment (NDI). There has been little investigation regarding the impact of prematurity on families. The objective of this study was to explore parental perspectives regarding the impact of prematurity on themselves/their family.

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Background: We assessed variability of analgesic use across three tertiary neonatal intensive care units (NICUs) accounting for early-life pain, quantified as number of invasive procedures. We also determined whether analgesia exposure modifies associations between early-life pain and neurodevelopment.

Methods: Multicenter prospective study of 276 very preterm infants (born <24-32 weeks' gestational age [GA]).

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Goal: To determine the analgesic effectiveness of repeated sucrose administration for skin-breaking (SB) procedures over the Neonatal Intensive Care Unit (NICU) hospitalization of preterm infants.

Methods: Longitudinal observational study, conducted in four level III Canadian NICUs. Eligible infants were <32 weeks gestational age at birth, and <10 days of life at enrollment.

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Aim: To describe parental perspective on health and developmental outcomes of their preterm child in relation to level of neurodevelopmental impairment (NDI).

Methods: A parental survey about their children aged 15-36 months corrected age born ˂29 weeks' gestation investigated parental concerns and positive attributes. Parental responses in relation to their child's level of NDI were examined using Kruskal-Wallis and chi-square for trend tests.

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