Clinical Impact of Serious Respiratory Disease in Children Under the Age of 2 Years During the 2021-2022 Bronchiolitis Season in England, Scotland, and Ireland.

BACKGROUND: Interventions introduced to reduce the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) led to a widespread reduction in childhood infections. However, from spring 2021 onwards the United Kingdom and Ireland experienced an unusual out-of-season epidemic of respiratory disease. METHODS: We conducted a prospective observational study (BronchStart), enrolling children 0-23 months of age presenting with bronchiolitis, lower respiratory tract infection, or first episode of wheeze to 59 emergency departments across England, Scotland, and Ireland from May 2021 to April 2022. We combined testing data with national admissions datasets to infer the impact of respiratory syncytial virus (RSV) disease. RESULTS: The BronchStart study collected data on 17 899 presentations for 17 164 children. Risk factors for admission and escalation of care included prematurity and congenital heart disease, but most admissions were for previously healthy term-born children. Of those aged 0-11 months who were admitted and tested for RSV, 1907 of 3912 (48.7%) tested positive. We estimate that every year in England and Scotland 28 561 (95% confidence interval, 27 637-29 486) infants are admitted with RSV infection. CONCLUSIONS: RSV infection was the main cause of hospitalizations in this cohort, but 51.3% of admissions in infants were not associated with the virus. The majority of admissions were in previously healthy term-born infants.

Seizure control via pH manipulation: a phase II double-blind randomised controlled trial of inhaled carbogen as adjunctive treatment of paediatric convulsive status epilepticus (Carbogen for Status Epilepticus in Children Trial (CRESCENT)).

BACKGROUND: Paediatric convulsive status epilepticus is the most common neurological emergency presenting to emergency departments. Risks of resultant neurological morbidity and mortality increase with seizure duration. If the seizure fails to stop within defined time-windows, standard care follows an algorithm of stepwise escalation to more intensive treatments, ultimately resorting to induction of general anaesthesia and ventilation. Additionally, ventilatory support may also be required to treat respiratory depression, a common unwanted effect of treatment. There is strong pre-clinical evidence that pH (acid-base balance) is an important determinant of seizure commencement and cessation, with seizures tending to start under alkaline conditions and terminate under acidic conditions. These mechanisms may be particularly important in febrile status epilepticus: prolonged fever-related seizures which predominantly affect very young children. This trial will assess whether imposition of mild respiratory acidosis by manipulation of inhaled medical gas improves response rates to first-line medical treatment. METHODS: A double-blind, placebo-controlled trial of pH manipulation as an adjunct to standard medical treatment of convulsive status epilepticus in children. The control arm receives standard medical management whilst inhaling 100% oxygen; the active arm receives standard medical management whilst inhaling a commercially available mixture of 95% oxygen, 5% carbon dioxide known as 'carbogen'. Due to the urgent need to treat the seizure, deferred consent is used. The primary outcome is success of first-line treatment in seizure cessation. Planned subgroup analyses will be undertaken for febrile and non-febrile seizures. Secondary outcomes include rates of induction of general anaesthesia, admission to intensive care, adverse events, and 30-day mortality. DISCUSSION: If safe and effective 95% oxygen, 5% carbon dioxide may be an important adjunct in the management of convulsive status epilepticus with potential for pre-hospital use by paramedics, families, and school staff. TRIAL REGISTRATION: EudraCT: 2021-005367-49. CTA: 17136/0300/001. ISRCTN: 52731862. Registered on July 2022.

Factors associated with repeat emergency department visits for mental health care in adolescents: A scoping review.

OBJECTIVES: The aim of this review was to identify factors associated with multiple visits to emergency department (ED) services for mental health care in adolescents. METHODS: Electronic databases (MEDLINE, PsycINFO, Embase, CINAHL, Web of Science and ProQuest Dissertations & Thesis Global) were searched for evidence that presented an association between risk factors or correlates of multiple visits to the emergency departmental for mental health care by 10-24 year olds. High impact use was defined as at least one return ED visit for mental health care. Primary studies of any quantitative design were included, with no exclusions based on language or country and all possible risk factors were considered. Data were extracted and synthesised using quantitative methods; frequencies of positive, negative and null associations were summarised for categories of potential risk factors. RESULTS: Sixty-five studies were included in the review. Most studies were from North America and reported a wide range of measures of high impact ED use, the most common being a binary indicator of multiple ED visits. Sex/gender and age were the most frequently reported risk factors. Measure of previous or concurrent access to mental health care was consistently positively associated with high impact use. Having private health insurance, compared with public or no insurance, was generally negatively associated with high impact use. Proxy measures of socioeconomic position (SEP) showed associations between lower SEP and more high impact use in a small number of studies. No other factors were consistently or uniformly associated with high impact use. CONCLUSIONS: The review identified a substantial evidence base but due to the variability in study design and measurement of both risk factors and outcomes, no consistent risk factors emerged. More research is needed, particularly outside North America, using robust methods and high quality routinely collected data.

Emergency department discharge practices for children with acute wheeze and asthma: a survey of discharge practice and review of safety netting instructions in the UK and Ireland.

OBJECTIVE: Recovery from acute wheeze and asthma attacks should be supported with safety netting, including treatment advice. We evaluated emergency department (ED) discharge practices for acute childhood wheeze/asthma attacks to describe variation in safety netting and recovery bronchodilator dosing. DESIGN: Two-phase study between June 2020 and September 2021, comprising (1) Departmental discharge practice survey, and (2) Analysis of written discharge instructions for caregivers. SETTING: Secondary and tertiary EDs in rural and urban settings, from Paediatric Emergency Research in the UK and Ireland (PERUKI). MAIN OUTCOME MEASURES: Describe practice and variation in discharge advice, treatment recommendations and safety netting provision. RESULTS: Of 66/71 (93%) participating sites, 62/66 (93.9%) reported providing written safety netting information. 52/66 (78.8%) 'nearly always' assessed inhaler/spacer technique; routine medication review (21/66; 31.8%) and adherence (16/66; 21.4%) were less frequent. In phase II, 61/66 (92.4%) submitted their discharge documents; 50/66 (81.9%) included bronchodilator plans. 11/66 (18.0%) provided Personalised Asthma Action Plans as sole discharge information. 45/50 (90%) provided 'fixed' bronchodilator dosing regimes; dose tapering was common (38/50; 76.0%). Median starting dose was 10 puffs 4 hourly (27/50, 54.0%); median duration was 4 days (29/50, 58.0%). 13/61 (21.3%) did not provide bronchodilator advice for acute deterioration; where provided, 42/48 (87.5%) recommended 10 puffs immediately. Subsequent dosages varied considerably. Common red flags included inability to speak (52/61, 85.2%), inhalers not lasting 4 hours (51/61, 83.6%) and respiratory distress (49/61, 80.3%). CONCLUSIONS: There is variation in bronchodilator dosing and safety netting content for recovery following acute wheeze and asthma attacks. This reflects a lack of evidence, affirming need for further multicentre studies regarding bronchodilator recovery strategies and optimal safety netting advice.

Analysis of guideline recommendations for treatment of asthma exacerbations in children: a Pediatric Emergency Research Networks (PERN) study.

RATIONALE: There is significant practice variation in acute paediatric asthma, particularly severe exacerbations. It is unknown whether this is due to differences in clinical guidelines. OBJECTIVES: To describe and compare the content and quality of clinical guidelines for the management of acute exacerbations of asthma in children between geographic regions. METHODS: Observational study of guidelines for the management of acute paediatric asthma from institutions across a global collaboration of six regional paediatric emergency research networks. MEASUREMENTS AND MAIN RESULTS: 158 guidelines were identified. Half provided recommendations for at least two age groups, and most guidelines provided treatment recommendations according to asthma severity.There were consistent recommendations for the use of inhaled short-acting beta-agonists and systemic corticosteroids. Inhaled anticholinergic therapy was recommended in most guidelines for severe and critical asthma, but there were inconsistent recommendations for its use in mild and moderate exacerbations. Other inhaled therapies such as helium-oxygen mixture (Heliox) and nebulised magnesium were inconsistently recommended for severe and critical illness.Parenteral bronchodilator therapy and epinephrine were mostly reserved for severe and critical asthma, with intravenous magnesium most recommended. There were regional differences in the use of other parenteral bronchodilators, particularly aminophylline.Guideline quality assessment identified high ratings for clarity of presentation, scope and purpose, but low ratings for stakeholder involvement, rigour of development, applicability and editorial independence. CONCLUSIONS: Current guidelines for the management of acute paediatric asthma exacerbations have substantial deficits in important quality domains and provide limited and inconsistent guidance for severe exacerbations.

Infections diagnosed in children and young people screened for malaria in UK emergency departments: a retrospective multi-centre study.

BACKGROUND: Data on imported infections in children and young people (CYP) are sparse. AIMS: To describe imported infections in CYP arriving from malaria-endemic areas and presenting to UK emergency departments (ED) who were screened for malaria. METHODS: This is a retrospective, multi-centre, observational study nested in a diagnostic accuracy study for malaria rapid diagnostic tests. Any CYP < 16 years presenting to a participating ED with a history of fever and travel to a malaria-endemic area between 1 January 2016 and 31 December 2017 and who had a malaria screen as a part of standard care were included. Geographical risk was calculated for the most common tropical infections. RESULTS: Of the 1414 CYP screened for malaria, 44.0% (n = 622) arrived from South Asia and 33.3% (n = 471) from sub-Saharan Africa. Half (50.0%) had infections common in both tropical and non-tropical settings such as viral upper respiratory tract infection (URTI); 21.0% of infections were coded as tropical if gastro-enteritis is included, with a total of 4.2% (60) cases of malaria. CYP diagnosed with malaria were 7.44 times more likely to have arrived from sub-Saharan Africa than from South Asia (OR 7.44, 3.78-16.41). CONCLUSION: A fifth of CYP presenting to participating UK EDs with fever and a history of travel to a malaria-endemic area and who were screened for malaria had a tropical infection if diarrhoea is included. A third of CYP had no diagnosis. CYP arriving from sub-Saharan Africa had the greatest risk of malaria.Abbreviations: CYP: children and young people; ED: emergency department; PERUKI: Paediatric Emergency Research in the UK and Ireland; RDT: rapid diagnostic test; VFR: visiting friends and relatives.

Emergency department clinicians' views on implementing psychosocial care following acute paediatric injury: a qualitative study.

Introduction: The early post-trauma period is a key time to provide psychological support to acutely injured children. This is often when they present to emergency departments (EDs) with their families. However, there is limited understanding of the feasibility of implementing psychological support for children and their families in EDs. The aim of this study was to explore UK and Irish ED clinicians' perspectives on developing and implementing psychosocial care which educates families on their children's post-trauma psychological recovery.Methods: Semi-structured individual and group interviews were conducted with 24 UK and Irish ED clinicians recruited via a paediatric emergency research network.Results: Clinicians expressed that there is value in offering psychological support for injured children and their families; however, there are barriers which can prevent this from being effectively implemented. Namely, the prioritisation of physical health, time constraints, understaffing, and a lack of training. Therefore, a potential intervention would need to be brief and accessible, and all staff should be empowered to deliver it to all families.Conclusion: Overall, participants' views are consistent with trauma-informed approaches where a psychosocial intervention should be able to be implemented into the existing ED system and culture. These findings can inform implementation strategies and intervention development to facilitate the development and delivery of an accessible digital intervention for acutely injured children and their families.

The emergency department provides an opportunity for early trauma-informed care for acutely injured children and their families.Addressing psychological distress in emergency care for acutely injured children and their families should adopt a universal trauma-informed approach.The development of a paediatric trauma-informed intervention should consider barriers which can impact implementation into emergency care. Particular barriers highlighted by clinicians include staff shortages, time constraints, and high caseloads.

Mild Traumatic Brain Injury Characteristics and Symptoms in Preschool Children: How Do They Differ to School Age Children? A Multicenter Prospective Observational Study.

OBJECTIVE: To investigate if preschool children differ to school age children with mild traumatic brain injury (TBI) with respect to injury causes, clinical presentation, and medical management. DESIGN: A secondary analysis of a dataset from a large, prospective and multisite cohort study on TBI in children aged 0-18 years, the Australian Paediatric Head Injury Rules Study. SETTING: Nine pediatric emergency departments (ED) and 1 combined adult and pediatric ED located across Australia and New Zealand. PARTICIPANTS: 7080 preschool aged children (2-5 years) were compared with 5251 school-age children (6-12 years) with mild TBI (N= (N=12,331) MAIN OUTCOME MEASURES: Clinical report form on medical symptoms, injury causes, and management. RESULTS: Preschool children were less likely to be injured with a projectile than school age children (P<.001). Preschool children presented with less: loss of consciousness (P<.001), vomiting (P<.001), drowsiness (P=.002), and headache (P<.001), and more irritability and agitation (P=.003), than school-age children in the acute period after mild TBI. Preschool children were less likely to have neuroimaging of any kind (P<.001) or to be admitted for observation than school age children (P<.001). CONCLUSIONS: Our large prospective study has demonstrated that preschool children with mild TBI experience a different acute symptom profile to older children. There are significant clinical implications with symptoms post-TBI used in medical management to aid decisions on neuroimaging and post-acute intervention.

The clinical impact of serious respiratory disease in children under the age of two years during the 2021-2022 bronchiolitis season in England, Scotland and Ireland.

BACKGROUND: Interventions introduced to reduce the spread of SARS-CoV-2 led to a widespread reduction in childhood infections. However, from spring 2021 onwards the United Kingdom and Ireland experienced an unusual out-of-season epidemic of respiratory disease. METHODS: We conducted a prospective observational study (BronchStart), enrolling children 0-23 months of age presenting with bronchiolitis, lower respiratory tract infection or first episode of wheeze to 59 Emergency Departments across England, Scotland and Ireland from May 2021 to April 2022. We combined testing data with national admissions datasets to infer the impact of respiratory syncytial virus (RSV) disease. RESULTS: The BronchStart study collected data on 17,899 presentations for 17,164 children. Risk factors for admission and escalation of care included prematurity and congenital heart disease, but most admissions were for previously healthy term-born children. Of those aged 0-11 months who were admitted and tested for RSV, 1,907/3,912 (48.7%) tested positive. We estimate that every year in England and Scotland 28,561 (95% confidence interval 27,637-29,486) infants are admitted with RSV infection. CONCLUSIONS: RSV infection was the main cause of hospitalisations in this cohort, but 51.3% of admissions in infants were not associated with the virus. The majority of admissions were in previously healthy term-born infants.

Core outcomes and factors influencing the experience of care for children with severe acute exacerbations of asthma: a qualitative study.

OBJECTIVE: To identify the outcomes considered important, and factors influencing the patient experience, for parents and caregivers of children presenting to hospital with a severe acute exacerbation of asthma. This work contributes to the outcome-identification process in developing a core outcome set (COS) for future clinical trials in children with severe acute asthma. DESIGN: A qualitative study involving semistructured interviews with parents and caregivers of children who presented to hospital with a severe acute exacerbation of asthma. SETTING: Hospitals in 12 countries associated with the global Pediatric Emergency Research Networks, including high-income and middle-income countries. Interviews were conducted face-to-face, by teleconference/video-call, or by phone. FINDINGS: Overall, there were 54 interviews with parents and caregivers; 2 interviews also involved the child. Hospital length of stay, intensive care unit or high-dependency unit (HDU) admission, and treatment costs were highlighted as important outcomes influencing the patient and family experience. Other potential clinical trial outcomes included work of breathing, speed of recovery and side effects. In addition, the patient and family experience was impacted by decision-making leading up to seeking hospital care, transit to hospital, waiting times and the use of intravenous treatment. Satisfaction of care was related to communication with clinicians and frequent reassessment. CONCLUSIONS: This study provides insight into the outcomes that parents and caregivers believe to be the most important to be considered in the process of developing a COS for the treatment of acute severe exacerbations of asthma.

Applying clinical decision aids for the assessment and management of febrile infants presenting to emergency care in the UK and Ireland: Febrile Infant Diagnostic Assessment and Outcome (FIDO) Study protocol.

INTRODUCTION: Febrile infants 90 days and younger are at risk of invasive bacterial infections (bacteraemia and meningitis) and urinary tract infections. Together this is previously termed serious bacterial infection with an incidence of approximately 10-20%. The National Institute for Health and Care Excellence guidance advocates a cautious approach with most infants requiring septic screening, parenteral broad-spectrum antibiotics and hospital admission. Internationally, variations exist in the approach to febrile infants, with European and North American guidance advocating a tailored approach based on clinical features and biomarker testing. None of the available international clinical decision aids (CDAs) has been validated in the UK and Irish cohorts. The aim of the Febrile Infant Diagnostic Assessment and Outcome (FIDO) Study is to prospectively validate a range of CDAs in a UK and Irish population including CDAs that use procalcitonin testing. METHODS AND ANALYSIS: The FIDO Study is a prospective multicentre mixed-methods cohort study conducted in UK and Irish hospitals. All infants aged 90 days and younger presenting with fever or history of fever (≥38°C) are eligible for inclusion. Infants will receive standard emergency clinical care without delay. Clinical data and blood samples will be collected, and consent will be obtained at the earliest appropriate opportunity using research without prior consent methodology. The performance and cost-effectiveness of CDAs will be assessed. An embedded qualitative study will explore clinician and caregiver views on different approaches to care and perceptions of risk. ETHICS AND DISSEMINATION: This study was reviewed and approved by the Office for Research Ethics Committees Northern Ireland-Health and Social Care Research Ethics Committee B, Public Benefit and Privacy Panel for Health and Social Care Scotland, and Children's Health Ireland Research and Ethics Committee Ireland. The results of this study will be presented at academic conferences and in peer-reviewed publications. TRIAL REGISTRATION NUMBER: NCT05259683.

Children presenting with diabetes and diabetic ketoacidosis to Emergency Departments during the COVID-19 pandemic in the UK and Ireland: an international retrospective observational study.

OBJECTIVES: To describe the incidence of new onset paediatric diabetes mellitus, clinical characteristics and patterns of presentation to emergency departments (ED) during the COVID-19 pandemic, and to assess whether this increase was associated with SARS-CoV-2 infection. DESIGN: Retrospective medical record review. SETTING: Forty nine paediatric EDs across the UK and Ireland. PATIENTS: All children aged 6 months to 16 years presenting to EDs with (1) new onset diabetes or (2) pre-existing diabetes with diabetic ketoacidosis (DKA), during the COVID-19 pandemic (1 March 2020-28 February 2021) and the preceding year (1 March 2019-28 February 2020). RESULTS: There were increases in new onset diabetes (1015 to 1183, 17%), compared with background incidence of 3%-5% in the UK over the past 5 years. There were increases in children presenting with new onset diabetes in DKA (395 to 566, 43%), severe DKA (141 to 252, 79%) and admissions to intensive care (38 to 72, 89%). Increased severity was reflected in biochemical and physiological parameters and administration of fluid boluses. Time to presentation from symptom onset for children presenting with new onset diabetes and DKA were similar across both years; healthcare seeking delay did not appear to be the sole contributing factor to DKA during the pandemic. Patterns of presentation changed in the pandemic year and seasonal variation was lost. Children with pre-existing diabetes presented with fewer episodes of decompensation. CONCLUSIONS: There were increases in new onset diabetes in children and a higher risk of DKA in the first COVID pandemic year.

A systematic literature review of the relationship between parenting responses and child post-traumatic stress symptoms.

Background: Parents are a key source of support for children exposed to single-incident/acute traumas and can thereby play a potentially significant role in children's post-trauma psychological adjustment. However, the evidence base examining parental responses to child trauma and child posttraumatic stress symptoms (PTSS) has yielded mixed findings.Objective: We conducted a systematic review examining domains of parental responding in relation to child PTSS outcomes.Method: Studies were included if they (1) assessed children (6-19 years) exposed to a potentially traumatic event, (2) assessed parental responses to a child's trauma, and (3) quantitatively assessed the relationship between parental responses and child PTSS outcomes. A systematic search of three databases (APAPsycNet, PTSDpubs, and Web of Science) yielded 27 manuscripts.Results: Parental overprotection, trauma communication, avoidance of trauma discussion and of trauma reminders, and distraction were consistently related to child PTSS. There was more limited evidence of a role for trauma-related appraisals, harsh parenting, and positive parenting in influencing child outcomes. Significant limitations to the evidence base were identified, including limited longitudinal evidence, single informant bias and small effect sizes.Conclusion: We conclude that key domains of parental responses could be potential intervention targets, but further research must validate the relationship between these parental responses and child PTSS outcomes.

Child post-traumatic stress symptoms following acute trauma are consistently related to post-trauma parental overprotection, avoidance of trauma discussion and of trauma reminders, and promotion of distraction from trauma-related thoughts and stimuli.The findings from this review provide a potential rationale for targeting these parental domains in clinical interventions addressing children's post-traumatic stress symptoms.Future research is needed to validate the longitudinal relationship between parental response domains following children's traumatic exposure and child post-traumatic stress symptoms.

A Diagnostic Accuracy Study to Evaluate Standard Rapid Diagnostic Test (RDT) Alone to Safely Rule Out Imported Malaria in Children Presenting to UK Emergency Departments.

BACKGROUND: Microscopy is the gold standard for malaria diagnosis but is dependent on trained personnel. Rapid diagnostic tests (RDTs) form the mainstay of diagnosis in endemic areas without access to high-quality microscopy. We aimed to evaluate whether RDT alone could rule out imported malaria in children presenting to UK emergency departments (EDs). METHODS: UK-based, multi-center, retrospective, diagnostic accuracy study. Included: any child <16 years presenting to ED with history of fever and travel to a malaria-endemic country, between 01/01/2016 and 31/12/2017. Diagnosis: microscopy for malarial parasites (clinical reference standard) and RDT (index test). UK Health Research Authority approval: 20/HRA/1341. RESULTS: There were 47 cases of malaria out of 1,414 eligible cases (prevalence 3.3%) in a cohort of children whose median age was 4 years (IQR 2-9), of whom 43% were female. Cases of Plasmodium falciparum totaled 36 (77%, prevalence 2.5%). The sensitivity of RDT alone to detect malaria infection due to any Plasmodium species was 93.6% (95% CI 82.5-98.7%), specificity 99.4% (95% CI 98.9-99.7%), positive predictive value 84.6% (95% CI 71.9-93.1%) and negative predictive value 99.8% (95% CI 99.4-100.0%). Sensitivity of RDT to detect P. falciparum infection was 100% (90.3-100%), specificity 98.8% (98.1-99.3%), positive predictive value 69.2% (54.9-81.2%, n = 46/52) and negative predictive value 100% (99.7-100%, n = 1,362/1,362). CONCLUSIONS: RDTs were 100% sensitive in detecting P. falciparum malaria. However, lower sensitivity for other malaria species and the rise of pfhrp2 and pfhrp3 (pfhrp2/3) gene deletions in the P. falciparum parasite mandate the continued use of microscopy for diagnosing malaria.

Factors related to adverse long-term outcomes after mild traumatic brain injury in children: a scoping review.

OBJECTIVE: To identify demographic, premorbid and injury-related factors, or biomarkers associated with long-term (≥3 months) adverse outcomes in children after mild traumatic brain injury (mTBI). DESIGN: Scoping review of literature. PATIENTS: Children and adolescents with mTBI. RISK FACTORS: Any demographic, premorbid and injury-related factors, or biomarkers were included. We excluded genetic and treatment-related factors. MAIN OUTCOME MEASURES: Postconcussion syndrome (PCS), recovery. RESULTS: Seventy-three publications were included, reporting 12 long-term adverse outcomes, including PCS in 12 studies and recovery in 29 studies. Additional outcomes studied were symptom scores/severity (n=22), quality of life (n=9) and cognitive function (n=9). Forty-nine risk factors were identified across studies. Risk factors most often assessed were sex (n=28), followed by age (n=23), injury mechanism = (n=22) and prior mTBI (n=18). The influence of these and other risk factors on outcomes of mTBI were inconsistent across the reviewed literature. CONCLUSIONS: The most researched risk factors are sex, age and mechanism of injury, but their effects have been estimated inconsistently and did not show a clear pattern. The most studied outcomes are recovery patterns and symptom severity. However, these may not be the most important outcomes for clinicians and patients. Future primary studies in this area should focus on patient-important outcomes. Population-based prospective studies are needed that address prespecified hypotheses on the relationship of risk factors with given outcomes to enable reliable prediction of long-term adverse outcomes for childhood mTBI.

International perspective on research priorities and outcome measures of importance in the care of children with acute exacerbations of asthma: a qualitative interview study.

BACKGROUND: Acute exacerbations of asthma are common in children, however, treatment decisions for severe exacerbations are challenging due to a lack of robust evidence. In order to create more robust research, a core set of outcome measures needs to be developed. In developing these outcomes, it is important to understand the views of clinicians who care for these children in particular, views that relate to outcome measures and research priorities. METHODS: To determine the views of clinicians, a total of 26 semistructured interviews based on the theoretical domains framework were conducted. These included experienced clinicians from emergency, intensive care and inpatient paediatrics across 17 countries. The interviews were recorded, and later transcribed. All data analyses were conducted in Nvivo by using thematic analysis. RESULTS: The length of stay in hospital and patient-focused parameters, such as timing to return to school and normal activity, were the most frequently highlighted outcome measures, with clinicians identifying the need to achieve a consensus on key core outcome measure sets. Most research questions focused on understanding the best treatment options, including the role of novel therapies and respiratory support. CONCLUSION: Our study provides an insight into what research questions and outcome measures clinicians view as important. In addition, information on how clinicians define asthma severity and measure treatment success will assist with methodological design in future trials. The current findings will be used in parallel with a further Paediatric Emergency Research Network study focusing on the child and family perspectives and will contribute to develop a core outcome set for future research.

Paediatric major incident triage: A Delphi process to determine clinicians' attitudes and beliefs within the United Kingdom and Ireland.

AIM: Triage is key to effective management of major incidents, yet there is scarce evidence surrounding the optimal method of paediatric major incident triage (MIT). This study aimed to derive consensus on key components of paediatric MIT among healthcare professionals responsible for triage during paediatric major incidents. METHODS: Two-round online Delphi consensus study delivered July 2021-October 2021, including participants from pre-hospital and hospital specialities responsible for triage during paediatric major incidents. A 5-point Likert scale was used to determine consensus, set a priori at 70%. RESULTS: 111 clinicians completed both rounds; 13 of 17 statements reached consensus. Positive consensus was reached on rescue breaths in mechanisms associated with hypoxia or asphyxiation, mobility assessment as a crude discriminator and use of adult physiology for older children. Whilst positive consensus was reached on the benefits of a single MIT tool across all adult and paediatric age ranges, there was negative consensus in relation to clinical implementation. CONCLUSIONS: This Delphi study has established consensus among a large group of clinicians involved in the management of major incidents on several key elements of paediatric major incident triage. Further work is required to develop a triage tool that can be implemented based on emerging and ongoing research and which is acceptable to clinicians.