Evidence map›Paper›PMID 37056917›Full record

ArticleJournal of circulating biomarkers

Laboratory biomarkers of delayed cerebral ischemia following subarachnoid hemorrhage: A systematic review.

Maud A Tjerkstra, Homeyra Labib, Bert A Coert, René Spijker, Jonathan M Coutinho, W Peter Vandertop, Dagmar Verbaan

Open access · goldAbstract read
In one paragraph

Article in Journal of circulating biomarkers. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 14% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 9 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Haemorrhage, hypercoagulability and ischaemia: Evolution of brain injury after aneurysmal subarachnoid haemorrhage.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2026
    Review
  5. Article
  6. Article
  7. Article
  8. The polyunsaturated fatty acid and oxylipin plasma signature of aneurysmal subarachnoid haemorrhage, case-control study.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
    Article
  9. Review
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

7 authors at 2 institutions in 1 country.

Maud A TjerkstraAmsterdam UMC, University of Amsterdam, Department of Neurosurgery, Neuroscience Amsterdam, Amsterdam, Netherlands.
Homeyra LabibAmsterdam UMC, University of Amsterdam, Department of Neurosurgery, Neuroscience Amsterdam, Amsterdam, Netherlands.
Bert A CoertAmsterdam UMC, University of Amsterdam, Department of Neurosurgery, Neuroscience Amsterdam, Amsterdam, Netherlands.
René SpijkerMedical Library, Amsterdam UMC, University of Amsterdam, Amsterdam Public Health, Amsterdam, Netherlands.
Jonathan M CoutinhoAmsterdam UMC, University of Amsterdam, Department of Neurology, Neuroscience Amsterdam, Amsterdam, Netherlands.
W Peter VandertopAmsterdam UMC, University of Amsterdam, Department of Neurosurgery, Neuroscience Amsterdam, Amsterdam, Netherlands.
Dagmar VerbaanAmsterdam UMC, University of Amsterdam, Department of Neurosurgery, Neuroscience Amsterdam, Amsterdam, Netherlands.
Amsterdam Neuroscience · NLUtrecht University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Delayed cerebral ischemia (DCI) substantially contributes to disability and death in subarachnoid hemorrhage (SAH) patients; however, its pathophysiology is incompletely understood and diagnostic and therapeutic strategies are lacking. Biomarkers may help to elucidate the pathophysiology, optimize early diagnosis, or provide treatment targets. We systematically searched PubMed and Embase on October 13, 2021, for studies that evaluated at least one laboratory biomarker in patients with DCI, using the most up-to-date definition of DCI as proposed by a panel of experts in 2010. Quality of studies was assessed using the Newcastle-Ottawa Scale or Cochrane Collaboration's risk of bias assessment tool. Biomarkers of clinical and radiological DCI were analyzed separately. Results were meta-analyzed if possible, otherwise narratively reviewed. Biomarkers were classified as significant, inconclusive, or nonsignificant. We defined validated biomarkers as those with significant results in meta-analyses, or in at least two studies using similar methodologies within the same time interval after SAH. The search yielded 209 articles with 724 different biomarkers; 166 studies evaluated 646 biomarkers of clinical DCI, of which 141 were significant and 7 were validated biomarkers (haptoglobulin 2-1 and 2-2, ADAMTS13, vWF, NLR, P-selectin, F2-isoprostane); 78 studies evaluated 165 biomarkers of radiological DCI, of which 63 were significant and 1 was a validated biomarker (LPR). Hence, this review provides a selection of seven biomarkers of clinical DCI and one biomarker of radiological DCI as most promising biomarkers of DCI. Future research should focus on determining the exact predictive, diagnostic, and therapeutic potentials of these biomarkers.

Indexed as

BiomarkerDelayed cerebral ischemiaSubarachnoid hemorrhage

Identifiers

PMID37056917
PMCPMC10087563
OpenAlexW4362665218

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

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.