ArticleBMJ paediatrics open2025
Cardiac-related neonatal collapse presenting to the emergency department: a retrospective cohort study.
Article in BMJ paediatrics open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundTo describe the characteristics of cardiac-related neonatal collapses referred to a critical care transport service and evaluate the diagnostic accuracy and management at referral and retrieval.
methodsRetrospective cohort analysis of cardiac-related neonatal collapses who were referred to and transferred by a paediatric intensive care retrieval team based in London, UK between 2013 and 2021. Patients with antenatal diagnoses were excluded.
resultsThere were 71 neonates identified of whom 49 (69%) had structural heart defect, 12 (17%) arrhythmia and 10 (14%) with cardiomyopathy/myocarditis. Among structural defects, left ventricular outflow tract (LVOT) obstruction (71%) and mixing of circulation (22%) were the predominant pathologies. Cardiac murmur was absent in 66% of the patients. The referring teams' diagnostic performance was suboptimal for LVOT obstruction and cardiomyopathy/myocarditis, with 63% and 30% recognised as cardiac cause of collapse at referral. Less than half of neonates with duct-dependent lesions received prostaglandin at referral, which later improved to 97% during retrieval. The number of patients requiring intubation and inotropic support also increased at various time points throughout the patient journey. 98% of patients with structural defects required cardiac interventions at a median of 1 day after admission.
conclusionsStructural heart defect, particularly LVOT obstruction, was the leading cause of cardiac-related neonatal collapses. However, a significant portion were initially misdiagnosed leading to delay in prostaglandin administration. Our findings highlight the importance of a high index of suspicion for cardiac pathologies as a cause of neonatal collapse, which is essential for appropriate treatment and timely referral.
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