Publications by authors named "Stuart R Dalziel"

Objective: Since 2021, the PREDICT Guideline for Mild to Moderate Head Injuries in Children has been widely implemented across Australia and New Zealand. We set out to describe the application of the guideline's risk stratification using an existing database.

Methods: Secondary analysis of a large multicentre prospective data set of paediatric patients with head injuries.

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Background: Healthcare workers in emergency departments (EDs) need to function optimally to deliver high-quality healthcare. High levels of burnout negatively impact these workers' delivery of quality care to their patients. Quality improvement and workplace wellbeing programmes may simultaneously improve quality of care and burnout.

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Aim: Bronchiolitis is the leading cause of hospital admission in Australasian infants. Infants with risk factors for severe disease may have a greater likelihood of prolonged hospitalisation and intensive care admission. This study aimed to synthesise the literature on risk factors for severe bronchiolitis in Australasian infants.

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Antenatal corticosteroids are given to pregnant people at risk of preterm birth to reduce newborn morbidity, including respiratory distress syndrome. However, there has been concern surrounding potential adverse effects on subsequent generations. Animal studies have demonstrated endocrine and metabolic changes in those exposed to corticosteroids in utero () and in the second generation ().

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Aim: To provide updated evidence-based clinical guidance in the management of infants with bronchiolitis presenting to emergency departments (EDs), general paediatric, or intensive care units (ICUs) in Australia and Aotearoa New Zealand (AoNZ) following the first publication in 2016.

Method: The Paediatric Research in Emergency Departments International Collaborative (PREDICT) network guideline working group appraised, summarised, and updated evidence from 1 January 2000 to 24 January 2024 addressing 41 questions (30 from the 2016 guideline and 11 new questions for 2025). Recommendations were developed using GRADE methodology and revised after a period of external consultation.

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Background: Bronchiolitis is the most common reason for hospital admission in infants in Australia and Aotearoa New Zealand (AoNZ), with care historically affected by practice variation, including use of ineffective therapies. The Paediatric Research in Emergency Departments International Collaborative (PREDICT) developed the first Australasian (Australia, AoNZ) bronchiolitis guideline in 2016, providing evidence-based guidance on the management of infants (< 12 months of age), presenting or admitted to hospital with bronchiolitis. In 2022, PREDICT initiated a guideline update to include new evidence and expand the scope to include intensive care (up to intubation), management of SARS-CoV-2 co-infection, and respiratory syncytial virus prevention.

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Background: For women who have received a course of antenatal corticosteroids ≥7 days prior and have ongoing risk of preterm birth within the next 7 days, repeat dose(s) of corticosteroids up to 32 weeks' gestation have been shown to reduce neonatal respiratory distress syndrome and serious health problems in the neonatal period but not other neonatal morbidities such as chronic lung disease, death, severe intraventricular haemorrhage or necrotising enterocolitis. Repeat antenatal corticosteroids were not associated with either benefit or harms in mid-childhood. However, this may have been too early to evaluate potential adverse effects on respiratory and other long-term outcomes.

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Background: Risk stratification tools for paediatric community-acquired pneumonia (CAP) in well-resourced settings are scarce. We prospectively developed models to predict CAP severity within a multinational cohort of paediatric emergency departments (EDs). Our primary objective was to develop a risk prediction model to discriminate between mild CAP and moderate or severe CAP to assist clinicians in determining the need for hospitalisation.

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The Paediatric Research in Emergency Departments International Collaborative (PREDICT) has operated as an emergency research network in Australia and Aotearoa New Zealand for 20 years. A focus on both knowledge generation and, over the last decade, knowledge translation research has produced more than 200 network publications. Active research sites have increased from the original 12 sites to 47, with enhanced representation of where children with acute illness present in both countries.

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Objective: Severe acute kidney injury (AKI) portends poor outcomes in pediatric sepsis. We evaluated the trajectory and prognostic utility of AKI biomarkers in pediatric septic shock using a subset of participants in the ongoing Pragmatic Pediatric Trial of Balanced vs. Normal Saline Fluid in Sepsis (PRoMPT BOLUS) trial, NCT04102371.

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Objectives: Although child and adolescent mental health and behavioural presentations to hospital emergency departments (EDs) increased during the first 2 years of the COVID-19 pandemic (2020 and 2021), little is known about the characteristics of these presentations. We aimed to compare demographic, clinical and psychosocial profiles of paediatric presentations to Australian EDs before and after the onset of the pandemic.

Methods: We conducted a retrospective observational study of 100 randomly sampled presentations by children (6-11-year-olds) and adolescents (12-17-year-olds) to 10 Australian EDs between 1 January and 31 December 2019 (pre-COVID-19) and 1 January and 31 December 2021 (COVID-19).

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Background: The use of nasal high-flow (NHF) oxygen for apnoeic oxygenation during emergency paediatric intubation is not universally adopted. Although previous studies suggest potential benefits, it remains unclear whether NHF enhances the likelihood of achieving successful first-attempt intubation without oxygen desaturation in children. We aimed to investigate whether the provision of NHF oxygen during paediatric emergency intubation can improve intubation outcomes.

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Objectives: Research in critically ill children poses challenges in acquiring prospective informed consent. International ethical guidelines generally have provisions to perform research without prior consent (RWPC) in circumstances where consent is not feasible, but there is a paucity of data regarding the community acceptance of this process. The objectives of the current study were to explore the attitudes and experiences of parents of children enrolled into trials to determine understanding and acceptability of RWPC to parents of children involved.

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Aim: The study aim was to develop an age-appropriate definition of sport and exercise in children and adolescents for use in concussion research and management.

Methods: A modified Delphi methodology, with three rounds and consensus defined a priori as ≥ 80% agreement.

Results: Thirty-one participants (13 male, 18 female) from 13 countries, including clinical psychologists, epidemiologists, implementation scientists, neurologists, neuropsychologists, neurosurgeons, paediatric emergency physicians, paediatricians, physiotherapists, rehabilitation physicians, speech-language pathologists, and sports medicine physicians came to a consensus that sport-related paediatric concussion extends beyond the sporting arena, and includes the school yard, playground, park, street, recreational site, and home; excludes non-accidental violence, assault, and passenger vehicle road trauma; may include falls; and age-group terminology includes Toddlers and Young Children (1-4 years), Children (5-12 years), and Adolescents (13 to < 18 years).

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Background And Objectives: Preterm birth results in neonatal and childhood morbidity and mortality. Additionally, population-based studies show poorer cardiovascular health in adult survivors, but a full range of health outcomes has not been investigated into midlife. We aimed to assess the health outcomes after preterm vs term birth at 50 years in survivors of a randomized trial of antenatal betamethasone.

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Article Synopsis
  • The study aimed to create a prioritized list of research themes and essential data points related to mental health issues in children and adolescents presenting to emergency departments (ED).
  • A Delphi survey involving various stakeholders, including clinicians and patients, was conducted to gather and prioritize these research themes and data points.
  • The final results highlighted 71 key items, focusing on safety in the ED, the effectiveness of mental health spaces, follow-up care, and important data like risk factors and behavioral disturbances.
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Background: Antenatal corticosteroids are recommended for women at risk of preterm birth from 24 to 34 weeks' gestation as they reduce neonatal morbidity and mortality, but evidence regarding their long-term effects on offspring is limited. This study assessed general health and social outcomes 50 years after antenatal exposure to corticosteroids.

Methods: We assessed 424 adult offspring of women who participated in the first randomised, double-blind, placebo-controlled trial of antenatal betamethasone for the prevention of neonatal respiratory distress syndrome.

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Introduction: The well-being of healthcare workers (HCWs) is critical to providing excellent care. Recent evidence concerns the well-being of emergency department (ED) HCWs in New Zealand, with high levels of burnout found in a 2020 survey. This threat to providing high-quality acute care warrants improvement interventions.

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Introduction: Antenatal corticosteroids are widely used to prevent morbidity and mortality after preterm birth, but there are ongoing concerns about the possible risk of long-term adverse effects, including perturbation of endocrine systems, with potential implications for reproduction. A small number of animal studies have suggested possible adverse effects on reproduction after antenatal exposure to corticosteroids, but there is a paucity of human data.

Material And Methods: This is a secondary cohort analysis of the 50-year follow-up of the Auckland Steroid Trial (1969-1974) comparing antenatal exposure to corticosteroids or placebo.

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Article Synopsis
  • The study tracked the 2-year mortality and seizure recurrence rates in patients with status epilepticus (SE) identified over a one-year period in the Auckland region.
  • Out of 367 identified patients, 335 were followed up, revealing a 2-year all-cause mortality rate of 14.9% and a seizure recurrence rate of 58.8%.
  • Key findings indicated that younger patients, particularly preschoolers, and those with febrile SE had lower mortality, while older individuals and those with prolonged SE had higher mortality and recurrence rates.
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Objective: The objective was to investigate the feasibility of prospectively validating multiple clinical prediction scores (CPSs) for pediatric appendicitis in an Australian pediatric emergency department (ED).

Methods: A literature search was conducted to identify potential CPSs and a single-center prospective observational feasibility study was performed between November 2022 and May 2023 to evaluate the performance of identified CPSs. Children 5-15 years presenting with acute right-sided or generalized abdominal pain and clinician suspicion of appendicitis were included.

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Objectives: To determine the prevalence of eczema among children in New Zealand.

Methods: Population-based retrospective observational study utilising national pharmaceutical dispensing records for topical corticosteroids and emollients for all New Zealand children aged 0-14 years from 1st January 2006 to 31st December 2019. Data are reported using descriptive statistics, with comparisons between ethnicities and socioeconomic quintiles undertaken with rate ratios.

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Objective: The aim of this study was to compare injury circumstances, characteristics, and clinical management of emergency department (ED) presentations for sports-related concussion (SRC) and non-SRC.

Methods: This multicenter prospective observational study identified patients 5-17 years old who presented to EDs within 24 hours of head injury, with one or more signs or symptoms of concussion. Participants had a Glasgow Coma Scale score of 13-15 and no abnormalities on CT (if performed).

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Article Synopsis
  • The study aimed to evaluate the effectiveness of the health care system in treating status epilepticus (SE) in Auckland, New Zealand, focusing on treatment patterns and outcomes.
  • A total of 365 patients were evaluated, with notable findings including that over half had prior epilepsy, the average duration of SE was 44 minutes, and key factors affecting SE duration included early benzodiazepine administration.
  • The results indicated lower-than-expected mortality rates and self-limiting cases of SE, while showing no disparities in treatment or outcomes across different ethnic groups, emphasizing the strengths of a universal health care system.
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Background: Asthma is the most common chronic childhood respiratory condition globally. Inhaled corticosteroid (ICS)-formoterol reliever-based regimens reduce the risk of asthma exacerbations compared with conventional short-acting β-agonist (SABA) reliever-based regimens in adults and adolescents. The current limited evidence for anti-inflammatory reliever therapy in children means it is unknown whether these findings are also applicable to children.

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