Evidence map›Paper›PMID 33073847›Full record

Trial reportNeurosurgery2021

Survival, Dependency, and Health-Related Quality of Life in Patients With Ruptured Intracranial Aneurysm: 10-Year Follow-up of the United Kingdom Cohort of the International Subarachnoid Aneurysm Trial.

Xinyang Hua, Alastair Gray, Jane Wolstenholme, Philip Clarke, Andrew J Molyneux, Richard S C Kerr, Alison Clarke, Mary Sneade, Oliver Rivero-Arias

Open access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Neurosurgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.6field-weighted citation impact, top 13% 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

18 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Literature review and DELPHI consensus on follow-up and retreatment of intracranial aneurysms with intrasaccular devices.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Observational
  9. ClippingInterventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2024
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Spontaneous subarachnoid haemorrhage.Lancet (London, England) · 2022
    Review
  15. Article
  16. Article
  17. Review
  18. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Xinyang HuaNational Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom.
Alastair GrayHealth Economics Research Centre, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom.
Jane WolstenholmeHealth Economics Research Centre, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom.
Philip ClarkeHealth Economics Research Centre, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom.
Andrew J MolyneuxNuffield Department of Surgical Sciences, University of Oxford, Oxford, United Kingdom.
Richard S C KerrDepartment of Neurosurgery, John Radcliffe Hospital, Oxford, United Kingdom.
Alison ClarkeNuffield Department of Surgical Sciences, University of Oxford, Oxford, United Kingdom.
Mary SneadeNuffield Department of Surgical Sciences, University of Oxford, Oxford, United Kingdom.
Oliver Rivero-AriasNational Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom.
University of Oxford · GBJohn Radcliffe Hospital · GB

Funding

Department of HealthMedical Research Council G0700479Medical Research Council G9401611
6 · The paper itself

Abstract

backgroundPrevious analyses of the International Subarachnoid Aneurysm Trial (ISAT) cohort have reported on clinical outcomes after treatment of a ruptured intracranial aneurysm with either neurosurgical clipping or endovascular coiling.

objectiveTo evaluate the long-term quality-adjusted life years (QALYs) gained of endovascular coiling compare to neurosurgical clipping in the UK cohort of ISAT.

methodsBetween September 12, 1994 and May 1, 2002, patients with ruptured intracranial aneurysms who were assumed treatment equipoise were randomly allocated to either neurosurgical clipping or endovascular coiling. We followed-up 1644 patients in 22 UK neurosurgical centers for a minimum of 10 yr. Health-related quality of life (HRQoL) was collected through yearly questionnaires, measured by utilities calculated from the EQ-5D-3L. We compared HRQoL between the 2 treatment groups over a period of 10 yr. In all, 1-yr, 5-yr, and 10-yr QALYs were estimated by combining utility and survival information.

resultsHigher average utility values were found in the endovascular group throughout the follow-up period, with mean differences between groups statistically significant in most years. The 10-yr QALYs were estimated to be 6.68 (95% CI: 6.45-6.90) in the coiling group and 6.32 (95% CI: 6.10-6.55) in the clipping group, respectively, a significant mean difference of 0.36 (95% CI: 0.04-0.66). A third of this mean QALYs gain was estimated to derive solely from HRQoL differences.

conclusionHRQoL after treatment of a ruptured intracranial aneurysm was better after endovascular coiling compared to neurosurgical clipping, which contributed significantly to the QALYs gained over a 10-yr period.

Indexed as

Quality of LifeAdolescentAdultAgedAged, 80 and overAneurysm, RupturedEndovascular ProceduresFemaleFollow-Up StudiesHumansIntracranial AneurysmMaleMiddle AgedNeurosurgical ProceduresSurveys and QuestionnairesTreatment OutcomeEndovascular coilingQuality of lifeRandomized controlled trailSubarachnoid hemorrhage

Identifiers

PMID33073847
PMCPMC7803435
OpenAlexW3093421312

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.