• Rosy Hao, Mona Saleh, Tian Liang, Neh Molyneaux, Isaac Gordon, Chiemelie Anyachebelu, and Richard Sinert.
• Department of Emergency Medicine, Kings County Hospital, New York City Health & Hospitals, United States of America; Department of Emergency Medicine. State University of New York Downstate Health Sciences University, United States of America. Electronic address: haor2@nychhc.org.
• Am J Emerg Med. 2021 Jul 1; 45: 1-6.

ContextFebrile neutropenic immunocompromised children are at a high risk of Serious Bacterial Infections (SBI).ObjectiveThis systematic review and meta-analysis report the prevalence of SBI in healthy children with febrile neutropenia.Data SourcePubMed, EMBASE, and Web of Science from their inception to August 2020.Study SelectionPatients with an Absolute Neutrophil Count (ANC) <1000 cells/mm3 up to 18 years of age presenting to the ED with a chief complaint of fever (temperature > 38°C) and who had a workup for SBI as defined by each study.Data AbstractionData from individual studies was abstracted by a subset of the authors and checked independently by the senior author. Any discrepancies were adjudicated by the joint agreement of all the authors. We calculated the prevalence of SBI by using the number of SBI's as the numerator and the total number of febrile events in patients as the denominator. Bias in our studies was quantified by the Newcastle Ottawa Scale.ResultsWe identified 2066 citations of which five studies (1693 patients) our inclusion criteria. None of our reviewed studies consistently tested every included patient for SBI. Spectrum bias in every study resulted in a wide range of the SBI prevalence of 1.9% (<0.01% - 11%) similar to non-neutropenic children.LimitationsAll of our studies were retrospective and many did not consistently screen all subjects for SBI.ConclusionIf the clinical suspicion is low, the risk for SBI is similar between febrile healthy neutropenic and non-neutropenic children.Copyright © 2021 Elsevier Inc. All rights reserved.

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