Administration of vitamin D and its metabolites in critically ill adult patients: An updated systematic review with meta-analysis of randomized controlled trials

Menger, Johannes and Lee, Zheng-Yii and Notz, Quirin and Wallqvist, Julia and Hasan, Mohd Shahnaz and Elke, Gunnar and Dworschak, Martin and Meybohm, Patrick and Heyland, Daren K. and Stoppe, Christian (2022) Administration of vitamin D and its metabolites in critically ill adult patients: An updated systematic review with meta-analysis of randomized controlled trials. Critical Care, 26 (1). ISSN 1364-8535, DOI https://doi.org/10.1186/s13054-022-04139-1.

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Abstract

The clinical significance of vitamin D administration in critically ill patients remains inconclusive. The purpose of this systematic review with meta-analysis was to investigate the effect of vitamin D and its metabolites on major clinical outcomes in critically ill patients, including a subgroup analysis based on vitamin D status and route of vitamin D administration. Methods Major databases were searched through February 9, 2022. Randomized controlled trials of adult critically ill patients with an intervention group receiving vitamin D or its metabolites were included. Random-effect meta-analyses were performed to estimate the pooled risk ratio (dichotomized outcomes) or mean difference (continuous outcomes). Risk of bias assessment included the Cochrane tool for assessing risk of bias in randomized trials. Results Sixteen randomized clinical trials with 2449 patients were included. Vitamin D administration was associated with lower overall mortality (16 studies: risk ratio 0.78, 95% confidence interval 0.62-0.97, p = 0.03; I-2 = 30%), reduced intensive care unit length of stay (12 studies: mean difference - 3.13 days, 95% CI - 5.36 to - 0.89, n = 1250, p = 0.006; I-2 = 70%), and shorter duration of mechanical ventilation (9 studies: mean difference - 5.07 days, 95% CI - 7.42 to - 2.73, n = 572, p < 0.0001; I-2 = 54%). Parenteral administration was associated with a greater effect on overall mortality than enteral administration (test of subgroup differences, p = 0.04), whereas studies of parenteral subgroups had lower quality. There were no subgroup differences based on baseline vitamin D levels. Conclusions Vitamin D supplementation in critically ill patients may reduce mortality. Parenteral administration might be associated with a greater impact on mortality. Heterogeneity and assessed certainty among the studies limits the generalizability of the results. Trial registration: PROSPERO international prospective database of systematic reviews (CRD42021256939-05 July 2021).

Item Type: Article
Funders: Open Access Publication Fund of the University of Wuerzburg
Uncontrolled Keywords: Vitamin D; Critically ill; Nutrition; Meta-analysis; Mortality; Mechanical ventilator weaning
Subjects: R Medicine
Divisions: Faculty of Medicine
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 18 Sep 2023 04:31
Last Modified: 18 Sep 2023 04:31
URI: http://eprints.um.edu.my/id/eprint/41301

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