Evidence map›Paper›PMID 15605227›Full record

SynthesisIntensive care medicine2005

Antioxidant nutrients: a systematic review of trace elements and vitamins in the critically ill patient.

Daren K Heyland, Rupinder Dhaliwal, Ulrich Suchner, Mette M Berger

3 registry-linked trialsAbstract readComparative StudySystematic Review
PubMed Publisher
In one paragraph

Synthesis in Intensive care medicine, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 97 papers, 9 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
97citing papers in PubMed, 9 pooled it
21.4field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT00133978 nacompletednot on this map

REducing Deaths Due to OXidative Stress The REDOXS© Study

TypeinterventionalSponsorDaren K. HeylandRan2005 to 2012Enrolled1,223ConditionsCritical Illness, Sepsis, Multiple Organ FailureArmsGlutamine, Antioxidants, Glutamine + Antioxidants, Placebo
NCT03048994 nacompletednot on this mapstarted 2011, after this paper: background citation

A Randomized Controlled Trial of Glutamine Supplementation in Critically Ill Adults With Severe Sepsis: A Pilot Study

TypeinterventionalSponsorChangi General HospitalRan2011 to 2013Enrolled39ConditionsSevere SepsisArmsGlutamine, Placebo
NCT04869579 phase2unknown statusnot on this mapstarted 2021, after this paper: background citation

Selenium as a Potential Treatment for Moderately-ill, Severely-ill, and Critically-ill COVID-19 Patients

TypeinterventionalSponsorCHRISTUS HealthRan2021 to 2021Enrolled100ConditionsCovid19ArmsSelenium (as Selenious Acid), Placebo
3 · Its place in the literature

Who cites it

97 citing papers in PubMed, 9 syntheses or guidelines pooled it, 438 citations in OpenAlex.

  1. Pooled it
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  3. Immunonutrition for acute respiratory distress syndrome (ARDS) in adults.The Cochrane database of systematic reviews · 2019
    Pooled it
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  5. Selenium supplementation for critically ill adults.The Cochrane database of systematic reviews · 2015
    Pooled it
  6. Selenium deficiency and the effects of supplementation on preterm infants.Revista paulista de pediatria : orgao oficial da Sociedade de Pediatria de Sao Paulo · 2014
    Pooled it
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  8. Guideline
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37 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 2 countries.

Daren K HeylandDepartment of Medicine, Queen's University, Kingston, ONT, Canada. dkh2@post.queensu.ca
Rupinder Dhaliwal
Ulrich Suchner
Mette M Berger
Queen's University · CALudwig-Maximilians-Universität München · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveCritical illness is associated with the generation of oxygen free radicals and low endogenous antioxidant capacity leading to a condition of oxidative stress. We investigated whether supplementing critically ill patients with antioxidants, trace elements, and vitamins improves their survival.

methodsWe searched four bibliographic databases from 1980 to 2003 and included studies that were randomized, reported clinically important endpoints in critically ill patients, and compared various trace elements and vitamins to placebo.

resultsEleven articles met the inclusion criteria. When the results of all the trials were aggregated, overall antioxidants were associated with a significant reduction in mortality [Risk Ratio (RR) 0.65, 95% confidence intervals (CI) 0.44-0.97, p=0.03] but had no effect on infectious complications. Studies that utilized a single trace element were associated with a significant reduction in mortality [RR 0.52, 95% CI 0.27-0.98, p=0.04] whereas combined antioxidants had no effect. Studies using parenteral antioxidants were associated with a significant reduction in mortality [RR 0.56, 95% CI 0.34-0,92, p=0.02] whereas studies of enteral antioxidants were not. Selenium supplementation (alone and in combination with other antioxidants) may be associated with a reduction in mortality [RR 0.59, 95% CI 0.32-1.08, p=0.09] while nonselenium antioxidants had no effect on mortality.

conclusionsTrace elements and vitamins that support antioxidant function, particularly high-dose parenteral selenium either alone or in combination with other antioxidants, are safe and may be associated with a reduction in mortality in critically ill patients.

Indexed as

AntioxidantsCritical CareDose-Response Relationship, DrugEnteral NutritionHumansInfectionsParenteral NutritionRandomized Controlled Trials as TopicSeleniumSurvival AnalysisTrace ElementsVitaminsAntioxidantsSeleniumTrace ElementsVitamins

Identifiers

PMID15605227
OpenAlexW2127851097

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.