Evidence map›Paper›PMID 19418265›Full record

Trial reportNeurocritical care2009

Inpatient hyperglycemia following aneurysmal subarachnoid hemorrhage: relation to cerebral metabolism and outcome.

Florian Schlenk, Peter Vajkoczy, Asita Sarrafzadeh

Abstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Neurocritical care, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 2 pooled it
5.7field-weighted citation impact, top 3% 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

27 citing papers in PubMed, 2 syntheses or guidelines pooled it, 73 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Review
  6. Article
  7. Development of a predictive nomogram for 28-day mortality risk in non-traumatic or post-traumatic subarachnoid hemorrhage patients.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024
    Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Observational
  15. Observational
  16. Article
  17. Review
  18. Article
  19. Article
  20. Optimal glycemic control in neurocritical care patients.Critical care (London, England) · 2012
    Article
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

3 authors at 1 institution in 1 country.

Florian SchlenkDepartment of Neurosurgery, Charité Campus Virchow Medical Center, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany.
Peter Vajkoczy
Asita Sarrafzadeh
Charité - Universitätsmedizin Berlin · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionDespite its clear association with impaired prognosis, it remains controversial whether hyperglycemia after aneurysmal subarachnoid hemorrhage (SAH) actively contributes to neuronal damage. This study aimed to identify a threshold for blood glucose predicting unfavorable outcome, and to evaluate differences in cerebral metabolism in normo and hyperglycemic SAH patients.

methodsProspectively, blood glucose and cerebral metabolism, measured by cerebral microdialysis, were evaluated in 178 patients (WFNS grade I-V; age 51.6 +/- 12.4 years) during days 1-7 after SAH. Patients were classified into groups with mean blood glucose levels <or=/> 6.1 mmol/l (110 mg/dl) and 7.8 mmol/l (140 mg/dl). Glasgow Outcome Score was assessed after 12 months.

resultsHigher inpatient blood glucose was associated with impaired prognosis, with a threshold of 7.5 mmol/l (135 mg/dl) distinguishing best between favorable and unfavorable outcome. Inpatient glucose levels >6.1 mmol/l (110 mg/dl) were associated with higher cerebral lactate and lactate/pyruvate ratio (P < 0.05). Cerebral glucose was elevated only at blood levels >7.8 mmol/l (140 mg/dl). Inpatient glucose levels above 7.8 mmol/l (140 mg/dl) were independent predictors of unfavorable outcome and mortality.

conclusionBlood glucose levels >7.8 mmol/l (140 mg/dl), but not levels >6.1 mmol/l (110 mg/dl), independently predicted unfavorable outcome. While blood glucose levels >6.1 mmol/l (110 mg/dl) were already associated with slight metabolic derangements, cerebral glucose increased only at blood levels >7.8 mmol/l (140 mg/dl). Considering the risks associated with tight glycemic control, a moderate regimen accepting blood glucose levels up to 7.8 mmol/l (140 mg/dl) might be more reasonable after SAH.

Indexed as

AdultBlood GlucoseBrainCritical CareFemaleGlasgow Coma ScaleHumansHyperglycemiaInpatientsMaleMicrodialysisMiddle AgedMultivariate AnalysisPoint-of-Care SystemsPredictive Value of TestsProspective StudiesBlood Glucose

Identifiers

PMID19418265
OpenAlexW2163219486

What OpenQuestion holds

Textmetadata
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.