Evidence map›Paper›PMID 33271000›Full record

Trial reportBrain and behavior2021

Informed consent in critically ill adults participating to a randomized trial.

Milène Guinchard, Loane Warpelin-Decrausaz, Kaspar Schindler, Stephan Rüegg, Mauro Oddo, Jan Novy, Vincent Alvarez, Andrea O Rossetti

Abstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Brain and behavior, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
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

4 citing papers in PubMed.

  1. Trial
  2. Trial
  3. Review
  4. 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

8 authors.

Milène GuinchardDepartment of Clinical Neuroscience, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
Loane Warpelin-DecrausazClinical Trial Unit, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
Kaspar SchindlerSleep-Wake-Epilepsy-Center, Department of Neurology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
Stephan RüeggDepartment of Neurology, University Hospital Basel and University of Basel, Basel, Switzerland.
Mauro OddoDepartment of Intensive Care Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
Jan NovyDepartment of Clinical Neuroscience, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
Vincent AlvarezDepartment of Clinical Neuroscience, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
Andrea O RossettiDepartment of Clinical Neuroscience, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.ORCID 0000-0002-7878-172X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe 2014 update of the Swiss law on research increases patients' protection; it adds specific requirements for emergency situations, implying an active search for patients' wishes regarding research participation; the possibility of consent waivers is not clearly stated. We explored its practical impact in a RCT on critically ill adults.

methodsWe considered prospectively collected consents of a multicenter trial addressing the impact of continuous EEG on survival. We assessed the proportions of consents obtained strictly according to the law, of specific waivers for this study obtained from the IRB (early death; relatives' unavailability despite repeated attempts), and the yield of retrieving statements on willingness to research participation. We compared the proportion of consent refusals with those of recent trials in similar environments, and estimated the potential impact on study results.

resultsOf 402 recruited patients, six had double inclusions, one died before intervention, and 27 (6.7%, alive on long-term) were excluded following consent refusal or withdrawal, leaving 368 analyzable patients. Specific waivers allowed inclusion of 134 (36.4%) patients, while informed consents were obtained for all others. A statement of willingness to research participation was found in only 14.1%. In recent trials, consent refusal oscillated between 0%-23%, according to different waiver policies.

conclusionsConsent waivers should be specifically foreseen to prevent losing a potentially relevant proportion of patients reaching endpoints, and ensure results generalizability. The yield of looking for willingness to research participation seems low; this questions its current usefulness and calls for a public awareness campaign.

Indexed as

Critical IllnessInformed ConsentAdultHumansDeclaration of HelsinkielectroencephalographyEthic CommissionIRBSwitzerland

Identifiers

PMID33271000
PMCPMC7882163

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.