Evidence map›Paper›PMID 35707961›Full record

SynthesisPharmacotherapy2022

Systematic review and meta-analysis of the correlation between bispectral index (BIS) and clinical sedation scales: Toward defining the role of BIS in critically ill patients.

Mojdeh S Heavner, Emily F Gorman, Dustin D Linn, Siu Yan Amy Yeung, Todd A Miano

2 registry-linked trialsAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Pharmacotherapy, 2022. 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 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
–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.

NCT07544602 not yet recruitingnot on this mapstarted 2026, after this paper: background citation

Music Therapy for Comatose Brain Injured Patients

Typeobservational_patient_registrySponsorMercy Health OhioRan2026 to 2028Enrolled35ConditionsTraumatic Brain Injury
NCT07583732 nanot yet recruitingnot on this mapstarted 2026, after this paper: background citation

The Comparison of Bispectral Index Parameter Between Critically Ill Patients With and Without Decreased Mental Status and Its Association With Clinical Outcomes

TypeinterventionalSponsorMahidol UniversityRan2026 to 2027Enrolled40ConditionsCritically Ill PatientsArmsProcessed EEG monitoring
3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Observational
  6. [Correlation of occlusion pressure with sedation in non-neurocritical patients].Revista medica del Instituto Mexicano del Seguro Social · 2026
    Observational
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Sedation Vacations in Neurocritical Care: Friend or Foe?Current neurology and neuroscience reports · 2024
    Review
  17. Observational
  18. Article
  19. Article
  20. 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

5 authors.

Mojdeh S HeavnerDepartment of Pharmacy Practice and Science, University of Maryland School of Pharmacy, Baltimore, Maryland, USA.ORCID 0000-0003-3007-7685
Emily F GormanHealth Sciences and Human Services Library, University of Maryland, Baltimore, Maryland, USA.ORCID 0000-0002-1210-1082
Dustin D LinnMedical Science Liaison, Philips North America, Cambridge, Massachusetts, USA.ORCID 0000-0002-7788-716X
Siu Yan Amy YeungMedical Intensive Care Unit, Department of Pharmacy Services, University of Maryland Medical Center, Baltimore, Maryland, USA.
Todd A MianoDepartment of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.

Funding

Drug-drug interactions and kidney disease in hospitalized patientsK08DK124658 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI MIANO, TODD ANTHONY · 2021 to 2025
$791k
NIDDK NIH HHS K08 DK124658
6 · The paper itself

Abstract

introductionThe bispectral index (BIS) is an attractive approach for monitoring level of consciousness in critically ill patients, particularly during paralysis, when commonly used sedation scales cannot be used.

objectivesAs a first step toward establishing the utility of BIS during paralysis, this review examines the strength of correlation between BIS and clinical sedation scales in a broad population of non-paralyzed, critically ill adults.

methodsWe included studies evaluating the strength of correlation between concurrent assessments of BIS and Richmond Agitation Sedation Scale (RASS), Ramsay Sedation Scale (RSS), or Sedation Agitation Scale (SAS) in critically ill adult patients. Studies involving assessment of depth sedation periperative or procedural time periods, and those reporting BIS and sedation scale assessments conducted >5 min apart or while neuromuscular blocking agents (NMBA) were administered, were excluded. Data were abstracted on sedation scale, correlation coefficients, setting, patient characteristics, and BIS assessment characteristics that could impact the quality of the studies.

resultsTwenty-four studies which enrolled 1235 patients met inclusion criteria. The correlation between BIS and RASS, RSS, and SAS overall was 0.68 (95% confidence interval, 0.61-0.74, Ƭ

conclusionsBIS demonstrated moderate to strong correlation with clinical sedation scales in adult ICU patients, providing preliminary evidence for the validity of BIS as a measure of sedation intensity when clinical scales cannot be used. Future studies should determine whether BIS monitoring is safe and effective in improving outcomes in patients receiving NMBA treatment.

Indexed as

Critical IllnessHypnotics and SedativesAdultElectroencephalographyHumansIntensive Care UnitsParalysisHypnotics and Sedativesbispectral indexintensive care unitRamsay Sedation ScaleRichmond Agitation Sedation ScaleSedation Agitation Scale

Identifiers

PMID35707961
PMCPMC9671609

What OpenQuestion holds

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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.