Higher versus lower enteral calorie delivery and gastrointestinal dysfunction in critical illness: A systematic review and meta-analysis

dc.contributor.authorMurthy, T.A.
dc.contributor.authorPlummer, M.P.
dc.contributor.authorTan, E.
dc.contributor.authorChapman, M.J.
dc.contributor.authorChapple, L.-A.S.
dc.date.issued2022
dc.description.abstractBackground and aims: In critical illness, enteral nutrition (EN) is frequently limited by gastrointestinal (GI) dysfunction. The aim of this systematic review and meta-analysis was to determine relationships between enteral calorie delivery and GI dysfunction in critically ill adults. Methods: MEDLINE, EMCARE, EMBASE, and CINAHL databases were searched from 1 January 2000 to 11 August 2021 to identify parallel group randomised controlled trials of an EN intervention that resulted in a significant difference in calorie delivery between groups and reported at least one outcome relating to GI dysfunction. Study groups were categorised as ‘higher’ or ‘lower’ calorie delivery and data were extracted on study interventions, GI dysfunction and clinical outcomes. Extracted data were aggregated using a random effects model and presented as risk ratio with 95% confidence intervals. A P-value <0.05 was considered significant. The risk of publication bias was assessed graphically using a funnel plot. Results: From 13 studies involving 6824 patients the mean calorie delivery in the higher calorie group was 1673 ± 468 kcal/day compared to 1121 ± 312 kcal/day in the lower calorie group. The higher calorie group had an increased risk of a large (any volume 300 ml) gastric residual volume (GRV) (RR 1.40; 95% CI 1.09, 1.80; P ¼ 0.009) and prokinetic administration (RR 1.18; 95% CI 1.11, 1.27; P < 0.00001). There were no between group differences in the presence of vomiting/regurgitation (RR 0.93; 95% CI 0.58, 1.49; P ¼ 0.76), diarrhoea (RR 1.12; 95% CI 0.93, 1.35; P ¼ 0.22) or abdominal distension (RR 0.71; 95% CI 0.49, 1.04; P ¼ 0.08). There was no evidence of publication bias. Conclusion: Higher calorie delivery is associated with increased rates of GRV 300 ml and prokinetic administration, but not vomiting/regurgitation, diarrhoea or abdominal distension.
dc.description.statementofresponsibilityTejaswini Arunachala Murthy, Mark P. Plummer, Elinor Tan, Marianne J. Chapman, Lee-anne S. Chapple
dc.identifier.citationClinical Nutrition, 2022; 41(10):2185-2194
dc.identifier.doi10.1016/j.clnu.2022.08.011
dc.identifier.issn0261-5614
dc.identifier.issn1532-1983
dc.identifier.orcidPlummer, M.P. [0000-0002-9640-1911]
dc.identifier.orcidChapman, M.J. [0000-0003-0710-3283]
dc.identifier.orcidChapple, L.-A.S. [0000-0002-9818-2484]
dc.identifier.urihttps://hdl.handle.net/2440/136776
dc.language.isoen
dc.publisherElsevier
dc.rights© 2022 Elsevier Ltd and European Society for Clinical Nutrition and Metabolism. All rights reserved.
dc.source.urihttps://doi.org/10.1016/j.clnu.2022.08.011
dc.subjectCritical illness; Calories; Enteral nutrition; Gastrointestinal dysfunction; Feed intolerance; meta-Analysis
dc.subject.meshHumans
dc.subject.meshGastrointestinal Diseases
dc.subject.meshCritical Illness
dc.subject.meshDiarrhea
dc.subject.meshVomiting
dc.subject.meshEnteral Nutrition
dc.subject.meshEnergy Intake
dc.subject.meshAdult
dc.titleHigher versus lower enteral calorie delivery and gastrointestinal dysfunction in critical illness: A systematic review and meta-analysis
dc.typeJournal article
pubs.publication-statusPublished

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