Evidence map›Paper›PMID 28988334›Full record

SynthesisActa neurochirurgica2017

A systematic review of cerebral microdialysis and outcomes in TBI: relationships to patient functional outcome, neurophysiologic measures, and tissue outcome.

Frederick A Zeiler, Eric Peter Thelin, Adel Helmy, Marek Czosnyka, Peter J A Hutchinson, David K Menon

Open access · hybridAbstract readSystematic Review
In one paragraph

Synthesis in Acta neurochirurgica, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
4.7field-weighted citation impact, top 5% 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

37 citing papers in PubMed, 83 citations in OpenAlex.

  1. Focally administered succinate improves cerebral metabolism in traumatic brain injury patients with mitochondrial dysfunction.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2022
    Trial
  2. Trial
  3. Observational
  4. Article
  5. Review
  6. Review
  7. Review
  8. Review
  9. Article
  10. Optical approaches for neurocritical care: Toward non-invasive recording of cerebral physiology in acute brain injury.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
    Review
  11. Review
  12. Observational
  13. Tracing the path of disruption:CNS neuroscience & therapeutics · 2024
    Review
  14. Article
  15. Management Strategies Based on Multi-Modality Neuromonitoring in Severe Traumatic Brain Injury.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2023
    Review
  16. Review
  17. Article
  18. Review
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

Frederick A ZeilerSection of Neurosurgery, Department of Surgery, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, R3A 1R9, Canada. umzeiler@myumanitoba.ca.
Eric Peter ThelinDivision of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge Biomedical Campus, Cambridge, CB2 0QQ, UK.
Adel HelmyDivision of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge Biomedical Campus, Cambridge, CB2 0QQ, UK.
Marek CzosnykaDivision of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge Biomedical Campus, Cambridge, CB2 0QQ, UK.
Peter J A HutchinsonDivision of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge Biomedical Campus, Cambridge, CB2 0QQ, UK.
David K MenonDepartment of Anesthesia, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK.
University of Cambridge · GBUniversity of Manitoba · CA

Funding

Department of Health NIHR-RP-R3-12-013Medical Research Council G0802251Medical Research Council G1002277
6 · The paper itself

Abstract

objectiveTo perform a systematic review on commonly measured cerebral microdialysis (CMD) analytes and their association to: (A) patient functional outcome, (B) neurophysiologic measures, and (C) tissue outcome; after moderate/severe TBI. The aim was to provide a foundation for next-generation CMD studies and build on existing pragmatic expert guidelines for CMD.

methodsWe searched MEDLINE, BIOSIS, EMBASE, Global Health, Scopus, Cochrane Library (inception to October 2016). Strength of evidence was adjudicated using GRADE.

results(A) Functional Outcome: 55 articles were included, assessing outcome as mortality or Glasgow Outcome Scale (GOS) at 3-6 months post-injury. Overall, there is GRADE C evidence to support an association between CMD glucose, glutamate, glycerol, lactate, and LPR to patient outcome at 3-6 months. (B) Neurophysiologic Measures: 59 articles were included. Overall, there currently exists GRADE C level of evidence supporting an association between elevated CMD measured mean LPR, glutamate and glycerol with elevated ICP and/or decreased CPP. In addition, there currently exists GRADE C evidence to support an association between elevated mean lactate:pyruvate ratio (LPR) and low PbtO

conclusionsThis systematic review replicates previously documented relationships between CMD and various outcome, which have driven clinical application of the technique. Evidence assessments do not address the application of CMD for exploring pathophysiology or titrating therapy in individual patients, and do not account for the modulatory effect of therapy on outcome, triggered at different CMD thresholds in individual centers. Our findings support clinical application of CMD and refinement of existing guidelines.

Indexed as

Brain ChemistryMicrodialysisBrain Injuries, TraumaticGlasgow Outcome ScaleGlucoseGlutamic AcidHumansLactic AcidPrognosisGlucoseGlutamic AcidLactic AcidCerebral microdialysisFunctional outcomePatient outcomeSystematic review

Identifiers

PMID28988334
PMCPMC5686263
OpenAlexW2762132510

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

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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.