Evidence map›Paper›PMID 22747768›Full record

Trial reportTrials2012

The effects of continuous prostacyclin infusion on regional blood flow and cerebral vasospasm following subarachnoid haemorrhage: study protocol for a randomised controlled trial.

Rune Rasmussen, Jørn Wetterslev, Trine Stavngaard, Jane Skjøth-Rasmussen, Per Olof Grände, Niels Vidiendal Olsen, Bertil Romner

Registry-linked trialOpen access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Trials, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01447095 (Effect of Prostacyclin Infusion on Cerebral Vessels, Cerebral Bloodflow and Cerebral Metabolism in Patients With Subarachnoid Haemorrhage), which is not on this map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.8field-weighted citation impact, top 24% 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.

NCT01447095 phase2completednot on this map

Effect of Prostacyclin Infusion on Cerebral Vessels, Cerebral Bloodflow and Cerebral Metabolism in Patients With Subarachnoid Haemorrhage

TypeinterventionalSponsorRune RasmussenRan2011 to 2014Enrolled90ConditionsSubarachnoid HemorrhageArmsProstacyclin 1 ng/kg/min, Prostacyclin 2 ng/kg/min, Placebo
3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. Cerebral vasospasm pharmacological treatment: an update.Neurology research international · 2013
    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

7 authors at 3 institutions in 2 countries.

Rune RasmussenDepartment of Neurosurgery, Copenhagen University Hospital, 9 Blegdamsvej, Copenhagen, Denmark. rune333@gmail.com
Jørn Wetterslev
Trine Stavngaard
Jane Skjøth-Rasmussen
Per Olof Grände
Niels Vidiendal Olsen
Bertil Romner
Copenhagen University Hospital · DKGetinge (Sweden) · SERigshospitalet · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOne of the main causes of mortality and morbidity following subarachnoid haemorrhage (SAH) is the development of cerebral vasospasm, a frequent complication arising in the weeks after the initial bleeding. Despite extensive research, to date no effective treatment of vasospasm exists. Prostacyclin is a potent vasodilator and inhibitor of platelet aggregation. In vitro models have shown a relaxing effect of prostacyclin after induced contraction in cerebral arteries, and a recent pilot trial showed a positive effect on cerebral vasospasm in a clinical setting. No randomised, clinical trials have been conducted, investigating the possible pharmacodynamic effects of prostacyclin on the human brain following SAH.

methodsThis trial is a single-centre, randomised, placebo-controlled, parallel group, blinded, clinical, pilot trial. A total of 90 patients with SAH will be randomised to one of three intervention arms: epoprostenol 1 ng/kg/min, epoprostenol 2 ng/kg/min or placebo in addition to standard treatment. Trial medication will start day 5 after SAH and continue to day 10. The primary outcome measure is changes in regional cerebral blood flow from baseline in the arterial territories of the anterior cerebral artery, medial cerebral artery and the posterior cerebral artery, measured by CT perfusion scan. The secondary outcomes will be vasospasm measured by CT angiography, ischaemic parameters measured by brain microdialysis, flow velocities in the medial cerebral artery, clinical parameters and outcome (Glasgow Outcome Scale) at 3 months.

trial registrationClinicaltrials.gov NCT01447095.

Indexed as

Research DesignCerebral AngiographyCerebral ArteriesCerebrovascular CirculationDenmarkEpoprostenolGlasgow Coma ScaleHumansInfusions, ParenteralMicrodialysisPerfusion ImagingPilot ProjectsRegional Blood FlowSubarachnoid HemorrhageTime FactorsTomography, X-Ray ComputedEpoprostenolVasodilator Agents

Identifiers

PMID22747768
PMCPMC3487886
OpenAlexW2171588943

What OpenQuestion holds

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LicenceCC BY
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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.