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      Application of bioelectrical impedance in newborns: an integrative review Translated title: Aplicación de la impedancia bioeléctrica en recién nacidos: revisión integradora

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          Abstract

          Abstract Objective: the objective of this study was to identify the use of bioelectrical impedance in newborns (NB), as this is an easy-to-apply and non-invasive method of measurement that can be used for distinguishing fat-free mass (FFM), fat mass (FM), and total body water (TBW). Method: this was an integrative review of the literature using the PubMed/MEDLINE, EMBASE, Web of Science, and Virtual Health Library databases to search for original articles between 2010-2020. A total of 900 articles were retrieved; after checking for duplicity and applying the eligibility criteria, 9 were further analyzed. Results: about the results, five studies used single frequency bioimpedance, with a specific population of neonates, preterm and/or full term, and different clinical conditions. Resistance was the most studied bioelectric indicator, the phase angle is little explored, and four studies investigated body composition (FFM, FM and TBW). Studies found that preterm newborns had lower amounts of TBW, FFM, and FM than term newborns, and there were differences in body composition between sex. The phase angle was lower for preterm newborns. Babies fed with high protein formulas had increases in the FFM. Conclusion: there is a need for multicenter studies to define standardized methods to be used with this public.

          Translated abstract

          Resumen Objetivo: el objetivo de este estudio fue identificar el uso de la impedancia bioeléctrica en recién nacidos (NB), ya que ese método es de fácil medición y no invasivo para la distinción de masa libre de grasa (MLG), masa grasa (MG) y agua corporal total (ACT). Método: esta fue una revisión integradora de la literatura utilizando PubMed/MEDLINE, EMBASE, Web of Science y Virtual Health Library para la búsqueda de artículos originales (2010-2020). En total, se encontraron 900 artículos, aunque tras la verificación de duplicidad y aplicación de los criterios de elegibilidad, solo 9 fueron para análisis. Resultados: cinco estudios utilizaron el dispositivo de monofrecuencia. Cada investigación se aplicó en una población específica de neonatos, prematuros y/o a término y diferentes condiciones clínicas. La resistencia fue el indicador bioeléctrico más estudiado, el ángulo de fase fue poco explorado y cuatro estudios investigaron la composición corporal. Dos estudios encontraron que los recién nacidos prematuros tienen menos cantidades de ACT, MLG y MG que los RNT y se observó diferencia en la composición corporal entre los sexos. El ángulo de fase fue inferior en prematuros. Los lactantes que se alimentaron con una fórmula con mayor contenido proteico tenían una mayor cantidad de MLG. Conclusión: se observa la necesidad de estudios multicéntricos para definir métodos estandarizados para ser utilizados con este público.

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          Most cited references25

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          The PRISMA 2020 statement: an updated guideline for reporting systematic reviews

          The Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) statement, published in 2009, was designed to help systematic reviewers transparently report why the review was done, what the authors did, and what they found. Over the past decade, advances in systematic review methodology and terminology have necessitated an update to the guideline. The PRISMA 2020 statement replaces the 2009 statement and includes new reporting guidance that reflects advances in methods to identify, select, appraise, and synthesise studies. The structure and presentation of the items have been modified to facilitate implementation. In this article, we present the PRISMA 2020 27-item checklist, an expanded checklist that details reporting recommendations for each item, the PRISMA 2020 abstract checklist, and the revised flow diagrams for original and updated reviews.
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            Bioelectrical impedance analysis--part I: review of principles and methods.

            U KYLE (2004)
            The use of bioelectrical impedance analysis (BIA) is widespread both in healthy subjects and patients, but suffers from a lack of standardized method and quality control procedures. BIA allows the determination of the fat-free mass (FFM) and total body water (TBW) in subjects without significant fluid and electrolyte abnormalities, when using appropriate population, age or pathology-specific BIA equations and established procedures. Published BIA equations validated against a reference method in a sufficiently large number of subjects are presented and ranked according to the standard error of the estimate. The determination of changes in body cell mass (BCM), extra cellular (ECW) and intra cellular water (ICW) requires further research using a valid model that guarantees that ECW changes do not corrupt the ICW. The use of segmental-BIA, multifrequency BIA, or bioelectrical spectroscopy in altered hydration states also requires further research. ESPEN guidelines for the clinical use of BIA measurements are described in a paper to appear soon in Clinical Nutrition.
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              Correlation of whole-body impedance with total body water volume.

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                Author and article information

                Journal
                nh
                Nutrición Hospitalaria
                Nutr. Hosp.
                Grupo Arán (Madrid, Madrid, Spain )
                0212-1611
                1699-5198
                April 2023
                : 40
                : 2
                : 436-443
                Affiliations
                [2] Curitiba Paraná orgnameUniversidade Tuiuti do Paraná orgdiv1Department of Nutrition Brazil
                [3] Curitiba Paraná orgnameUniversidade Federal do Paraná orgdiv1Department of Nutrition Brazil
                [4] Curitiba Paraná orgnameUniversidade Federal do Paraná orgdiv1Hospital de Clínicas orgdiv2Department of Pediatrics Brazil
                [1] Curitiba Paraná orgnameUniversidade Federal do Paraná orgdiv1Department of Pediatrics. Hospital de Clínicas orgdiv2Postgraduate Program in Child and Adolescent Health Brazil
                Article
                S0212-16112023000300027 S0212-1611(23)04000200027
                10.20960/nh.04365
                36926937
                0fd361dd-d0a6-4523-8584-111188d078af

                This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

                History
                : 21 July 2022
                : 22 October 2022
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 25, Pages: 8
                Product

                SciELO Spain

                Categories
                Reviews

                Recién nacido,Body water,Body composition,Newborn,Infant,Electric impedance,Agua corporal,Composición corporal,Bebé,Impedancia eléctrica

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