• Clin Nutr · Dec 2020

    Review

    Micronutrient status during paediatric critical illness: A scoping review.

    • L V Marino, F V Valla, R M Beattie, and VerbruggenS C A TSCATIntensive Care, Department of Paediatrics and Paediatric Surgery, Erasmus Medical Centre, Sophia Children's Hospital, Rotterdam, the Netherlands..
    • Department of Dietetics/Speech & Language Therapy, NIHR Biomedical Research Centre Southampton, University Hospital Southampton NHS Foundation Trust and School of Health Sciences, University of Southampton, Southampton, UK. Electronic address: Luise.marino@uhs.nhs.uk.
    • Clin Nutr. 2020 Dec 1; 39 (12): 3571-3593.

    BackgroundNo evidence based recommendations for micronutrient requirements during paediatric critical illness are available, other than those arising from recommended nutrient intakes (RNI) for healthy children and expert opinion.ObjectivesThe objective of this review is to examine the available evidence from micronutrient status in critically ill children considering studies which describe 1) micronutrient levels, 2) associations between micronutrient levels and clinical outcome, and 3) impact on clinical outcome with micronutrient supplementation during PICU admission.DesignScoping review.Eligibility CriteriaAny study which used a qualitative and quantitative design considering causes and consequences of micronutrient levels or micronutrient supplementation during paediatric critical illness.Sources Of EvidenceNICE Healthcare Databases Advanced Search website (https://hdas.nice.org.uk/) was used as a tool for multiple searches, with a content analysis and charting of data extracted.Results711 records were identified, 35 were included in the review. Studies evaluated serum micronutrient status was determined on admission day in majority of patients. A content analysis identified (n = 49) initial codes, (n = 14) sub-categories and (n = 5) overarching themes during critical illness, which were identified as: i) low levels of micronutrients, ii) causes of aberrant micronutrient levels, iii) associations between micronutrients levels and outcome, iv) supplementation of micronutrients.ConclusionDuring critical illness, micronutrients should be provided in sufficient amounts to meet reference nutrient intakes for age. Although, there is insufficient data to recommend routine supplementations of micronutrients at higher doses during critical illness, the 'absence of evidence should not imply evidence of absence', and well designed prospective studies are urgently needed to elucidate paediatric micronutrient requirements during critical illness. The absence of reliable biomarkers make it challenging to determine whether low serum levels are reflective of a true deficiency or as a result redistribution, particularly during the acute phase of critical illness. As more children continue to survive a PICU admission, particularly those with complex diseases micronutrient supplementation research should also be inclusive of the recovery phase following critical illness.Copyright © 2020 The Author(s). Published by Elsevier Ltd.. All rights reserved.

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