Michael J. Barrett

Michael J. Barrett

Consultant in Paediatric Emergency Medicine; UCD Associate Clinical Professor, Women's & Children's Health, UCD School of Medicine

Dr. Barrett is a graduate of University College Cork, NUI in 2004. He has worked in the HSE during his postgraduate Basic and Higher Specialist Training by the Faculty of Paediatrics, Royal College of Physicians, Ireland. During this time he was as Special Lecturer in Paediatrics contributing to the advancement of Centre for Child Health Research, University College Dublin. He completed his training with pre and post CCST Fellowship in Paediatric Emergency Medicine at Royal Children’s Hospital, Melbourne, Australia. He was appointed the position of Consultant to the Department of Paediatric Emergency Medicine, CHI at Crumlin (formerly OLCHC) in 2015 and returned to Ireland. He was made Fellow of Faculty of Paediatrics in 2017 and, in 2018, was made Associate Clinical Professor in UCD School of Medicine. In 2019 he was appointed to the Governance Board of the National Office of Clinical Audit as a representative of the Faculty of Paediatrics, RCPI. He was interim Chair of Drugs and Therapeutics in CHI at Crumlin in 2019.  He was appointed Review Editor for Frontiers in Pediatrics.

Michael J. Barrett

Consultant in Paediatric Emergency Medicine; UCD Associate Clinical Professor, Women's & Children's Health, UCD School of Medicine

Ellen Barry
Position: Paediatric Clinical Research Nurse

Based in the Emergency Department in CHI at Crumlin, Ellen is currently working alongside her clinical and research colleagues on the MAGPIE trial.


Prospective clinical intervention study. The primary aim is to describe the relationship of ketones at triage to level of dehydration. The secondary aim is to describe 1. the relationship between POC ketones/ ketone clearance and ED admission rate 2. the relationship between POC ketones and presenting symptoms 3. the relationship between ketone clearance & fluid/glucose intake 4. the relationship between ketone clearance & serum glucose on discharge


This citywide prospective non-intervention study investigates the current safety helmet and safety equipment usage in an ‘at risk’ paediatric population owing to the nature of their presentation to the ED with injury acquired off a wheeled recreational device


Despite the widespread concern, there is little published evidence to inform the most appropriate methods for reducing emergency department attendances and hospital admissions for children with complex care needs and much of the evidence that does exist is of poor methodological quality. There is a need for high-quality, well-conducted research and any future service improvement should be implemented in such a way as to allow objective evaluation. Prospective non-intervention study.


This prospective quantitative project will allow us to inform educational needs, develop workforce planning, identify areas in need of guideline development and improve care pathways for these children.

Multi-centre Service Evaluation of children presenting with suspected skull fractures under 2 years of age. Variations in imaging, child protection assessment and follow-up

The aim of this multinational multisite study (PERUKI affiliated) is to develop a database of infants presenting with suspected skull fractures.

Bibliometric Analysis of the Paediatric Emergency Medicine Literature

A PERN endorsed study to examine and compare, by visual & numeric bibliometric analysis, the Global PEM literature to the literature generated by PERN & affiliated Research Networks


This study aimed to describe the presentations of patients ≥16 years to the PED of a tertiary hospital. Patient demographics, presenting complaint, diagnosis, treatment and disposition were recorded.

Predicting Severe Pneumonia in the Emergency Department: A Global Study of the Pediatric Emergency Research Networks (PERN)

The purpose of this research study is to create tools to identify which children with a lung infection (called pneumonia) might get worse or better over time using children from pediatric emergency departments from all over the world. Approximately 12-24 months. Since there will likely be a staggered start with 100 sites around the globe, we anticipate that total data collection will take no more than 24 months with all sites contributing 12 months of data at staggered start dates. Primary Aim 1. To identify predictors of disease severity in pediatric CAP, including the need for hospitalization, empyema, respiratory failure, sepsis and death, in a large, global cohort of EDs. Primary Aim 2. To develop a clinical prediction rule that would accurately identify children with CAP who are at risk for low, moderate and severe disease. Sub Aim 2. To assess the predictive accuracy of this rule for clinically important outcomes, including empyema, respiratory failure, sepsis, and death.

The list of publications below is automatically derived from MEDLINE/PubMed. As a result, there may be incorrect or missing publications.

Gulzar MM, Prendiville T, Barrett MJ, Walsh M, Hall D, 2022 Mar 16, Improving the Quality of Paediatric ECG Interpretation. Ir Med J,
Barrett MJ, Dalziel S, Lyttle M, O'Sullivan R, Pediatric Emergency Research Networks (PERN)., 2022 Apr 1, A Bibliometric Analysis of Global Pediatric Emergency Medicine Research Networks. Pediatr Emerg Care, DOI: 10.1097/PEC.0000000000002543
Durnin S, Barrett MJ, Lyttle MD, Hartshorn S, PERUKI., 2021, Structures of paediatric pain management: a PERUKI service evaluation study. BMJ Paediatr Open, DOI: 10.1136/bmjpo-2021-001159
Leonard F, Gilligan J, Barrett MJ, 2021, Predicting Admissions From a Paediatric Emergency Department - Protocol for Developing and Validating a Low-Dimensional Machine Learning Prediction Model. Front Big Data, DOI: 10.3389/fdata.2021.643558
Ryan E, Bolger T, Barrett MJ, Blackburn C, Okafor I, McNamara R, Molloy EJ, 2020 Jun 11, Paediatric Head Injury and Traumatic Brain Injury. Ir Med J, DOI: 10.3389/fdata.2021.643558
Durnin S, Jones J, Ryan E, Howard R, Walsh S, Dawkins I, Blackburn C, O'Donnell SM, Barrett MJ, 2020 Dec, The utility of ketones at triage: a prospective cohort study. Arch Dis Child, DOI: 10.1136/archdischild-2019-318425
Bennett M, Vecchia CD, Blackburn C, Walsh S, Barrett MJ, 2020 Nov, Too old for a paediatric emergency department? It's complex. Ir J Med Sci, DOI: 10.1007/s11845-020-02213-7
Long E, Barrett MJ, Peters C, Sabato S, Lockie F, 2020 Mar, Emergency intubation of children outside of the operating room. Paediatr Anaesth, DOI: 10.1111/pan.13784
Hartshorn S, Barrett MJ, Lyttle MD, Yee SA, Irvine AT, in collaboration with Paediatric Emergency Research in the UK and Ireland (PERUKI)., 2019 Jul 4, Inhaled methoxyflurane (Penthrox®) versus placebo for injury-associated analgesia in children-the MAGPIE trial (MEOF-002): study protocol for a randomised controlled trial. Trials, DOI: 10.1186/s13063-019-3511-4
McGrath A, Barrett MJ, 2022 Jan, Petechiae , DOI: 10.1186/s13063-019-3511-4
Shellshear D, Snelling PJ, O'Brien A, Barrett MJ, 2018 Jan, Emergency Point-of-Care Ultrasound Identification of Pediatric Ventriculoperitoneal Shunt Malfunctions. Pediatr Emerg Care, DOI: 10.1097/PEC.0000000000001372
Whitla L, Jones J, Barrett MJ, O'Donnell SM, Walsh S, Blackburn C, 2017 Aug 12, Atresia Hymenalis with Haematometrocolpos: A Benefit of Teaching a Case Series and Review of the Literature. Ir Med J, DOI: 10.1097/PEC.0000000000001372
Babl FE, Grindlay J, Barrett MJ, 2016 Jun, In reply. Ann Emerg Med, DOI: 10.1016/j.annemergmed.2016.02.035
Barrett MJ, Barnett PL, 2016 Mar, Complex Regional Pain Type 1. Pediatr Emerg Care, DOI: 10.1097/PEC.0000000000000731
Barrett MJ, O'Brien A, 2016 Mar, Young Man With Lump in His Neck. Ann Emerg Med, DOI: 10.1016/j.annemergmed.2015.06.032
Ortega RA, Torres PA, Swan M, Nichols W, Boschung S, Raymond D, Barrett MJ, Johannes BA, Severt L, Shanker V, Hunt AL, Bressman S, Pastores GM, Saunders-Pullman R, 2016 Jun, Glucocerebrosidase enzyme activity in GBA mutation Parkinson's disease. J Clin Neurosci, DOI: 10.1016/j.jocn.2015.12.004
Long E, Fitzpatrick P, Cincotta DR, Grindlay J, Barrett MJ, 2016 Jan 27, A randomised controlled trial of cognitive aids for emergency airway equipment preparation in a Paediatric Emergency Department. Scand J Trauma Resusc Emerg Med, DOI: 10.1186/s13049-016-0201-z
Cronin JJ, McCoy S, Kennedy U, An Fhailí SN, Wakai A, Hayden J, Crispino G, Barrett MJ, Walsh S, O'Sullivan R, 2016 May, A Randomized Trial of Single-Dose Oral Dexamethasone Versus Multidose Prednisolone for Acute Exacerbations of Asthma in Children Who Attend the Emergency Department. Ann Emerg Med, DOI: 10.1016/j.annemergmed.2015.08.001
Babl FE, Grindlay J, Barrett MJ, 2015 Nov, Laryngospasm With Apparent Aspiration During Sedation With Nitrous Oxide. Ann Emerg Med, DOI: 10.1016/j.annemergmed.2015.04.029
Murphy A, O'Sullivan R, Wakai A, Grant TS, Barrett MJ, Cronin J, McCoy SC, Hom J, Kandamany N, 2014 Oct 10, Intranasal fentanyl for the management of acute pain in children. Cochrane Database Syst Rev, DOI: 10.1002/14651858.CD009942.pub2
Barrett MJ, 2014 Jul, Combined anti-cholinergic and short-acting β-agonist therapy reduces hospital admissions for acute asthma. J Paediatr Child Health, DOI: 10.1111/jpc.12669
Barrett MJ, Kozdoba O, Al Assaf N, Gillick J, Mortell A, Foran A, 2014 Mar, The national incidence and outcomes of gastroschisis repairs. Ir Med J, DOI: 10.1111/jpc.12669
Barrett MJ, Cronin J, Murphy A, McCoy S, Hayden J, an Fhailí S, Grant T, Wakai A, McMahon C, Walsh S, O'Sullivan R, 2012 May 30, Intranasal fentanyl versus intravenous morphine in the emergency department treatment of severe painful sickle cell crises in children: study protocol for a randomised controlled trial. Trials, DOI: 10.1186/1745-6215-13-74
Markert ML, Finkel BD, McLaughlin TM, Watson TJ, Collard HR, McMahon CP, Andrews LG, Barrett MJ, Ward FE, 1997, Mutations in purine nucleoside phosphorylase deficiency. Hum Mutat, DOI: 10.1002/(SICI)1098-1004(1997)9:2<118::AID-HUMU3>3.0.CO;2-5
Aust MR, Andrews LG, Barrett MJ, Norby-Slycord CJ, Markert ML, 1992 Oct, Molecular analysis of mutations in a patient with purine nucleoside phosphorylase deficiency. Am J Hum Genet, DOI: 10.1002/(SICI)1098-1004(1997)9:2<118::AID-HUMU3>3.0.CO;2-5
Barrett MJ, Buckley RH, Schiff SE, Kidd PC, Ward FE, 1988 Apr, Accelerated development of immunity following transplantation of maternal marrow stem cells into infants with severe combined immunodeficiency and transplacentally acquired lymphoid chimerism. Clin Exp Immunol, DOI: 10.1002/(SICI)1098-1004(1997)9:2<118::AID-HUMU3>3.0.CO;2-5
Barrett MJ, Hurwitz ES, Schonberger LB, Rogers MF, 1986 Apr, Changing epidemiology of Reye syndrome in the United States. Pediatrics, DOI: 10.1002/(SICI)1098-1004(1997)9:2<118::AID-HUMU3>3.0.CO;2-5

Name:Professor Ronan O’Sullivan
Position:Consultant in Paediatric Emergency Medicine
Institution:Cork University Hospital & Bons Secours Hospital, Cork
Name:Dr Mark Lyttle
Position:Consultant in Paediatric Emergency Medicine, RCPCH PEM CSAC Chair; Past Chair, Paediatric Emergency Research in the United Kingdom & Ireland (PERUKI)
Institution:Bristol Royal Hospital for Children
Country:United Kingdom
Name:Professor Maria Brenner
Position:Associate Professor, School of Nursing & Midwifery
Institution:Trinity College Dublin
Name:Dr Elliot Long
Position:Consultant in Paediatric Emergency Medicine
Institution:Royal Children’s Hospital, Melbourne
Name:Professor Franz Babl
Position:Consultant in Paediatric Emergency Medicine
Institution:Royal Children’s Hospital, Melbourne
Name:PERUKI Network
Name:PERN Network

Current Trials & Studies

Study NameStudy TitleStudy TypeSponsorSponsor Type
MAGPIEPhase 3, multicenter, randomized, double-blinded, placebo-controlled trial of methoxyflurane (PENTHROX) for the treatment of acute pain in children and adolescents from 6 to less than 18 years of age (presenting to ED with minor trauma)Clinical TrialMedical Developments International LimitedIndustry Sponsored
CUPIDChildren’s unscheduled primary and emergency care in Ireland: decision making, trends, outcomes and parental perspectivesObservationalUniversity College DublinAcademic-Investigator Led
CERACOVID-19 Emergency Response Assessment A Professional SurveySocial ResearchItern, PERUKIInvestigator Led
CUPID COVID-19Emergency Department Attendance by Paediatric Patients during COVID-19 ProjectObservational StudyUniversity College DublinAcademic-Investigator Led


    Oct 2017   Scholarship: Fellow of the Faculty of Paediatrics, Royal College of Physicians of Ireland
    Sep 2017   Award: Len and Arlean Fries Travel Award, Irish American Pediatric Society
    May 2017   Award: RCPCH APEM Best Research Poster Birmingham
    May 2017   Award: Prof Tempany Award, Best Research Presentation, OLCHC, Dublin
    Oct 2016   Award: Irish Association of Emergency Medicine, Best research Project and Presentation, Dublin 2016
    Oct 2015   Award: Irish Association of Emergency Medicine, Best Research Project and Presentation, Cork 2015
    May 2015   Award: The Ludwig-Seidel Award for Best Research By a Pediatric Emergency Fellow at Pediatric Academic Societies, San Diego
    May 2015   Award: Fellow’s Clinical Research Award in Recognition of Research Achievements in Academic Pediatrics, Pediatic Academic Societies, San Diego 2015
    Nov 2014   Award: Dr William Snowball Award for Outstanding Leadership, Royal Children’s Hospital, Melbourne, Australia
    May 2013   Award: Clinical Translational Science Award (CTSA) funded by National Center for Research Resources and the National Center for Advancing Translational Sciences, National Institutes of Health, USA
    Oct 2012   Award: Irish Association of Emergency Medicine, Best Research Poster, Carton House, Maynooth
    Apr 2009   Award: Len and Arlean Fries Travel Award, Irish American Pediatric Society, Buffalo, USA


    PERUKI Network

    PERN Network