Evidence map›Paper›PMID 26404392›Full record

ArticleIntensive care medicine2015

Benzodiazepine-associated delirium in critically ill adults.

Irene J Zaal, John W Devlin, Marijn Hazelbag, Peter M C Klein Klouwenberg, Arendina W van der Kooi, David S Y Ong, Olaf L Cremer, Rolf H Groenwold, Arjen J C Slooter

2 registry-linked trialsAbstract read
PubMed Publisher
In one paragraph

Article in Intensive care medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 113 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
113citing papers in PubMed, 5 pooled it
13.2field-weighted citation impact, top 1% 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.

NCT02899156 phase4terminatednot on this mapstarted 2016, after this paper: background citation

Effect of Flumazenil on Hypoactive Delirium in the ICU: A Double-Blind, Placebo-Controlled Pilot Study

TypeinterventionalSponsorUniversity of California, DavisRan2016 to 2019Enrolled22ConditionsHypoactive DeliriumArmsFlumazenil, Placebo
NCT04532606 phase4recruitingnot on this mapstarted 2021, after this paper: background citation

Impact of Remimazolam Tosilate for General Anesthesia on Prognosis After Bladder Cancer Surgery: a Randomized Controlled Trial

TypeinterventionalSponsorPeking University First HospitalRan2021 to 2026Enrolled1,128ConditionsBenzodiazepines, Bladder Cancer, Delirium, SurgeryArmsRemimazolam, Propofol
3 · Its place in the literature

Who cites it

113 citing papers in PubMed, 5 syntheses or guidelines pooled it, 237 citations in OpenAlex.

  1. Pooled it
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  4. Drug therapy for delirium in terminally ill adults.The Cochrane database of systematic reviews · 2020
    Pooled it
  5. Interventions for preventing intensive care unit delirium in adults.The Cochrane database of systematic reviews · 2018
    Pooled it
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  15. Review
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  18. Prevention and Treatment of ICU Delirium in Brain Injured Patients.Current neurology and neuroscience reports · 2026
    Review
  19. Article
  20. A pilot, parallel-group, blinded, placebo-controlled, randomiseCritical care and resuscitation : journal of the Australasian Academy of Critical Care Medicine · 2026
    Article

53 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 2 countries.

Irene J ZaalDepartment of Intensive Care Medicine, University Medical Center Utrecht, Utrecht, The Netherlands.
John W DevlinSchool of Pharmacy, Northeastern University, 360 Huntington Ave 140 TF RD218F, Boston, MA, 02118, USA. j.devlin@neu.edu.
Marijn HazelbagJulius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands.
Peter M C Klein KlouwenbergDepartment of Intensive Care Medicine, University Medical Center Utrecht, Utrecht, The Netherlands.
Arendina W van der KooiDepartment of Intensive Care Medicine, University Medical Center Utrecht, Utrecht, The Netherlands.
David S Y OngDepartment of Intensive Care Medicine, University Medical Center Utrecht, Utrecht, The Netherlands.
Olaf L CremerDepartment of Intensive Care Medicine, University Medical Center Utrecht, Utrecht, The Netherlands.
Rolf H GroenwoldJulius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands.
Arjen J C SlooterDepartment of Intensive Care Medicine, University Medical Center Utrecht, Utrecht, The Netherlands.
University Medical Center Utrecht · NLNortheastern University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe association between benzodiazepine use and delirium risk in the ICU remains unclear. Prior investigations have failed to account for disease severity prior to delirium onset, competing events that may preclude delirium detection, other important delirium risk factors, and an adequate number of patients receiving continuous midazolam. The aim of this study was to address these limitations and evaluate the association between benzodiazepine exposure and ICU delirium occurrence.

methodsIn a cohort of consecutive critically ill adults, daily mental status was classified as either awake without delirium, delirium, or coma. In a first-order Markov model, multinomial logistic regression analysis was used, which considered five possible outcomes the next day (i.e., awake without delirium, delirium, coma, ICU discharge, and death) and 16 delirium-related covariables, to quantify the association between benzodiazepine use and delirium occurrence the following day.

resultsAmong 1112 patients, 9867 daily transitions occurred. Benzodiazepine administration in an awake patient without delirium was associated with increased risk of delirium the next day [OR 1.04 (per 5 mg of midazolam equivalent administered) 95 % CI 1.02-1.05). When the method of benzodiazepine administration was incorporated in the model, the odds of transitioning to delirium was higher with benzodiazepines given continuously (OR 1.04, 95 % CI 1.03-1.06) compared to benzodiazepines given intermittently (OR 0.97, 95 % CI 0.88-1.05).

conclusionsAfter addressing potential methodological limitations of prior studies, we confirm that benzodiazepine administration increases the risk for delirium in critically ill adults but this association seems to be limited to continuous infusion use only.

Indexed as

BenzodiazepinesCritical CareCritical IllnessDeliriumFemaleHumansMaleMiddle AgedProspective StudiesBenzodiazepinesBenzodiazepineDeliriumIntensive careMidazolamRisk

Identifiers

PMID26404392
OpenAlexW2155622676

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.