Evidence map›Paper›PMID 21042881›Full record

Trial reportNeurocritical care2011

Cerebral hemodynamic and metabolic effects of equi-osmolar doses mannitol and 23.4% saline in patients with edema following large ischemic stroke.

Michael N Diringer, Michael T Scalfani, Allyson R Zazulia, Tom O Videen, Raj Dhar

Open access · greenAbstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in Neurocritical care, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 3 pooled it
1.1field-weighted citation impact, top 21% 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

14 citing papers in PubMed, 3 syntheses or guidelines pooled it, 51 citations in OpenAlex.

  1. Guideline
  2. Guideline
  3. Pooled it
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Management of Acute Ischemic Stroke.Critical care medicine · 2020
    Review
  10. Predicting cerebral edema in ischemic stroke patients.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2019
    Article
  11. Article
  12. Article
  13. Malignant cerebral edema after large anterior circulation infarction: a review.Current treatment options in cardiovascular medicine · 2014
    Article
  14. 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

5 authors at 2 institutions in 1 country.

Michael N DiringerDepartments of Neurology and Neurological Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA. diringerm@wustl.edu
Michael T Scalfani
Allyson R Zazulia
Tom O Videen
Raj Dhar
Neurological Surgery · USWashington University in St. Louis · US

Funding

PHYSIOLOGIC RESPONSE TO OSMOTIC THERAPY IN CEREBRAL EDEMA PATIENTSP50NS035966 · NINDS · WASHINGTON UNIVERSITY · PI DIRINGER, MICHAEL N · 2007 to 2007
$1.0M
NINDS NIH HHS P50 NS035966PHS HHS S03596610
6 · The paper itself

Abstract

introductionCerebral edema after ischemic stroke is frequently treated with mannitol and hypertonic saline (HS); however, their relative cerebrovascular and metabolic effects are incompletely understood, and may operate independent of their ability to lower intracranial pressure.

methodsWe compared the effects of 20% mannitol and 23.4% saline on cerebral blood flow (CBF), blood volume (CBV), oxygen extraction fraction (OEF), and oxygen metabolism (CMRO(2)), in nine ischemic stroke patients who deteriorated and had >2 mm midline shift on imaging. (15)O-PET was performed before and 1 h after administration of randomly assigned equi-osmolar doses of mannitol (1.0 g/kg) or 23.4% saline (0.686 mL/kg).

resultsBaseline CBF values (ml/100g/min) in the infarct core, periinfarct region, remaining ipsilateral hemisphere, and contralateral hemisphere in the mannitol group were 5.0 ± 3.9, 25.6 ± 4.4, 35.6 ± 8.6, and 45.5 ± 2.2, respectively, and in the HS group were 8.3 ± 9.8, 35.3 ± 10.9, 38.2 ± 15.1, and 35.2 ± 12.4, respectively. There was a trend for CBF to rise in the contralateral hemisphere after mannitol from 45.5 ± 12.2 to 57.6 ± 21.7, P = 0.098, but not HS. CBV, OEF, and CMRO(2) did not change after administration of either agent. Change in CBF in the contralateral hemisphere after osmotic therapy was strongly correlated with baseline blood pressure (R (2)= 0.879, P = 0.002).

conclusionsWe conclude that at higher perfusion pressures, osmotic agents may raise CBF in non-ischemic tissue. We conclude that at higher perfusion pressures, osmotic agents may raise CBF in non-ischemic tissue.

Indexed as

AgedBlood PressureBlood VolumeBrain EdemaBrain IschemiaCerebrovascular CirculationCritical CareDiuretics, OsmoticEnergy MetabolismFemaleHumansIntracranial HypertensionMaleMannitolMiddle AgedSaline Solution, HypertonicDiuretics, OsmoticMannitolSaline Solution, Hypertonic

Identifiers

PMID21042881
PMCPMC3727965
OpenAlexW2017987796

What OpenQuestion holds

Textmetadata
LicenceTDM
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.