Evidence map›Paper›PMID 21161260›Full record

Trial reportJournal of neurology2011

A randomised controlled trial of treatment for idiopathic intracranial hypertension.

Alexandra K Ball, Andrew Howman, Keith Wheatley, Michael A Burdon, Timothy Matthews, Andrew S Jacks, Mark Lawden, Arul Sivaguru, Alexandra Furmston, Steven Howell and 4 more

Abstract readMulticenter StudyRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Journal of neurology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed, 5 pooled it
4.0field-weighted citation impact, top 6% 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

57 citing papers in PubMed, 5 syntheses or guidelines pooled it, 140 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Guideline
  4. Pooled it
  5. Interventions for idiopathic intracranial hypertension.The Cochrane database of systematic reviews · 2015
    Pooled it
  6. Trial
  7. Trial
  8. Trial
  9. Article
  10. Article
  11. Vaulting further: cranial vault expansion for craniocerebral disproportion without primary craniosynostosis.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2024
    Article
  12. Review
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. 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

14 authors at 8 institutions in 1 country.

Alexandra K BallDepartment of Neurology, School of Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK. alexball@doctors.org.uk
Andrew Howman
Keith Wheatley
Michael A Burdon
Timothy Matthews
Andrew S Jacks
Mark Lawden
Arul Sivaguru
Alexandra Furmston
Steven Howell
Basil Sharrack
M Brendan Davies
Alexandra J Sinclair
Carl E Clarke
University of Birmingham · GBBirmingham and Midland Eye Centre · GBCancer Research UK Clinical Trials Unit · GBLeicester General Hospital · GBRoyal Hallamshire Hospital · GBSandwell & West Birmingham Hospitals NHS Trust · GBSheffield Teaching Hospitals NHS Foundation Trust · GBUniversity Hospitals of North Midlands NHS Trust · GB

Funding

Medical Research Council G0601430
6 · The paper itself

Abstract

The cause of idiopathic intracranial hypertension (IIH) remains unknown, and no consensus exists on how patients should be monitored and treated. Acetazolamide is a common treatment but has never been examined in a randomised controlled trial. The objectives of this pilot trial are to prospectively evaluate the use of acetazolamide, to explore various outcome measures and to inform the design of a definitive trial in IIH. Fifty patients were recruited from six centres over 23 months and randomised to receive acetazolamide (n = 25) or no acetazolamide (n = 25). Symptoms, body weight, visual function and health-related quality-of-life measures were recorded over a 12-month period. Recruited patients had typical features of mild IIH and most showed improvement, with 44% judged to have IIH in remission at the end of the trial. Difficulties with recruitment were highlighted as well as poor compliance with acetazolamide therapy (12 patients). A composite measure of IIH status was tested, and the strongest concordance with final disease status was seen with perimetry (Somers' D = 0.66) and optic disc appearance (D = 0.59). Based on the study data, a sample size of 320 would be required to demonstrate a 20% treatment effect in a substantive trial. Clinical trials in IIH require pragmatic design to involve sufficiently large numbers of patients. Future studies should incorporate weighted composite scores to reflect the relative importance of common outcome measures in IIH.

Indexed as

Research DesignAcetazolamideAdolescentAdultAgedCarbonic Anhydrase InhibitorsFemaleHumansMaleMiddle AgedPatient SelectionPilot ProjectsPseudotumor CerebriQuality of LifeTreatment OutcomeVisual Field TestsAcetazolamideCarbonic Anhydrase Inhibitors

Identifiers

PMID21161260
OpenAlexW1969785049

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.