Evidence map›Paper›PMID 36572493›Full record

ArticleBMJ open2022

Endovascular versus neurosurgical aneurysm treatment: study protocol for the development and validation of a clinical prediction tool for individualised decision making.

Jordi de Winkel, Bob Roozenbeek, Simone A Dijkland, Ruben Dammers, Pieter-Jan van Doormaal, Mathieu van der Jagt, David van Klaveren, Diederik W J Dippel, Hester F Lingsma

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
0.2field-weighted citation impact, top 42% 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, 1 synthesis or guideline pooled it, 2 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. 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

9 authors at 1 institution in 1 country.

Jordi de WinkelDepartment of Neurology, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands j.dewinkel@erasmusmc.nl.ORCID 0000-0002-6032-1995
Bob RoozenbeekDepartment of Neurology, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands.
Simone A DijklandDepartment of Neurology, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands.
Ruben DammersDepartment of Neurosurgery, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands.ORCID 0000-0001-7033-0644
Pieter-Jan van DoormaalDepartment of Radiology and Nuclear Medicine, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands.
Mathieu van der JagtDepartment of Intensive Care Adults, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands.
David van KlaverenDepartment of Public Health, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands.ORCID 0000-0002-2096-606X
Diederik W J DippelDepartment of Neurology, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands.ORCID 0000-0002-9234-3515
Hester F LingsmaDepartment of Public Health, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands.
Erasmus MC · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionTreatment decisions for aneurysmal subarachnoid haemorrhage patients should be supported by individualised predictions of the effects of aneurysm treatment. We present a study protocol and analysis plan for the development and external validation of models to predict benefit of neurosurgical versus endovascular aneurysm treatment on functional outcome and durability of treatment. METHODS AND ANALYSIS: We will use data from the International Subarachnoid Aneurysm Trial for model development. The outcomes are functional outcome, measured with modified Rankin Scale at 12 months, and any retreatment or rebleed of the target aneurysm during follow-up. We will develop an ordinal logistic regression model and Cox regression model, considering age, World Federation of Neurological Surgeons grade, Fisher grade, vasospasm at presentation, aneurysm lumen size, aneurysm neck size, aneurysm location and time-to-aneurysm-treatment as predictors. We will test for interactions with treatment and with baseline risk and derive individualised predicted probabilities of treatment benefit. A benefit of ≥5% will be considered clinically relevant. Discriminative performance of the outcome predictions will be assessed with the c-statistic. Calibration will be assessed with calibration plots. Discriminative performance of the benefit predictions will be assessed with the c-for benefit. We will assess internal validity with bootstrapping and external validity with leave-one-out internal-external cross-validation. ETHICS AND DISSEMINATION: The medical ethical research committee of the Erasmus MC University Medical Center Rotterdam approved the study protocol under the exemption category and waived the need for written informed consent (MEC-2020-0810). We will disseminate our results through an open-access peer-reviewed scientific publication and with a web-based clinical prediction tool.

Indexed as

Aortic Aneurysm, AbdominalBlood Vessel Prosthesis ImplantationEndovascular ProceduresSubarachnoid HemorrhageDecision MakingHumansPrognosisTreatment OutcomeEPIDEMIOLOGYNEUROSURGERYPUBLIC HEALTHStroke

Identifiers

PMID36572493
PMCPMC9806002
OpenAlexW4312181678

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.