Evidence map›Paper›PMID 31246895›Full record

Trial reportJournal of hypertension2019

Associations between change in blood pressure and functional outcome, early events and death: results from the Efficacy of Nitric Oxide in Stroke trial.

Else C Sandset, Jason P Appleton, Eivind Berge, Hanne Christensen, John Gommans, Kailash Krishnan, George Ntaios, Stephen Phillips, Stuart Pocock, Nikola Sprigg and 3 more

Open access · hybridAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Journal of hypertension, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.3field-weighted citation impact, top 37% 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

3 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
  2. Article
  3. 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

13 authors at 7 institutions in 6 countries.

Else C SandsetDepartment of Neurology.
Jason P AppletonStroke Trials Unit, Division of Clinical Neuroscience, University of Nottingham, Nottingham, UK.
Eivind BergeDepartment of Cardiology, Oslo University Hospital, Oslo, Norway.
Hanne ChristensenDepartment of Neurology, Bispebjerg Hospital, Copenhagen, Denmark.
John GommansHawke's Bay Hospital, Hastings, New Zealand.
Kailash KrishnanStroke Trials Unit, Division of Clinical Neuroscience, University of Nottingham, Nottingham, UK.
George NtaiosDepartment of Medicine, University of Thessaly, Greece.
Stephen PhillipsDivision of Neurology, Department of Medicine, Dalhousie University, Halifax, Canada.
Stuart PocockLondon School of Hygiene and Tropical Medicine, London, UK.
Nikola SpriggStroke Trials Unit, Division of Clinical Neuroscience, University of Nottingham, Nottingham, UK.
Lisa J WoodhouseStroke Trials Unit, Division of Clinical Neuroscience, University of Nottingham, Nottingham, UK.
Philip M BathStroke Trials Unit, Division of Clinical Neuroscience, University of Nottingham, Nottingham, UK.
ENOS trial investigators*
University of Nottingham · GBBispebjerg Hospital · DKDalhousie University · CAHawke's Bay Hospital · NZLondon School of Hygiene & Tropical Medicine · GBOslo University Hospital · NOUniversity of Thessaly · GR

Funding

Medical Research Council G0501797
6 · The paper itself

Abstract

objectivesHigh blood pressure (BP) is associated with a poor outcome after acute stroke. Early reduction in BP may be associated with fewer early adverse events and deaths, and improved functional outcome.

methodsAnalyses used data from the Efficacy of Nitric Oxide in Stroke trial, a multicentre randomized single-masked and outcome-masked trial of glyceryl trinitrate vs. no glyceryl trinitrate in 4011 patients recruited within 48 h of an ischaemic or haemorrhagic stroke and with raised SBP (140-220 mmHg). Change in SBP from baseline to day 1 was categorized as: more than 15% decrease, 15-5% decrease, 5% decrease to 5% increase (no change - reference) and more than 5% increase. The primary outcome was functional outcome (modified Rankin scale) score at 90 days.

resultsAcross all patients, both moderate (5-15%) and large (>15%) decreases in SBP were associated with beneficial shifts in the modified Rankin scale relative to patients with no change in BP: adjusted common odds ratio (OR) 0.81 [95% confidence interval (CI) 0.70-0.90] and OR 0.84 (95% CI 0.71-1.00), respectively. A moderate decrease in SBP was also associated with a lower risk of early adverse events, adjusted OR 0.69 (95% CI 0.52-0.90).

conclusionModest decreases in SBP in acute stroke appear to be associated with fewer early events and better long-term functional outcome.

Indexed as

AgedAged, 80 and overBlood PressureFemaleHumansHypertensionMaleMiddle AgedNitroglycerinSingle-Blind MethodStrokeTreatment OutcomeVasodilator AgentsNitroglycerinVasodilator Agents

Identifiers

PMID31246895
PMCPMC6727949
OpenAlexW2953724842

What OpenQuestion holds

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LicenceCC BY
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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.