Evidence map›Paper›PMID 33566462›Full record

SynthesisCritical care medicine2021

Awareness With Paralysis in Mechanically Ventilated Patients in the Emergency Department and ICU: A Systematic Review and Meta-Analysis.

Ryan D Pappal, Brian W Roberts, Winston Winkler, Lauren H Yaegar, Robert J Stephens, Brian M Fuller

Open access · greenAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Critical care medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

8 citing papers in PubMed, 27 citations in OpenAlex.

  1. Review
  2. Article
  3. Management of Mechanical Ventilation in Emergency Medicine: A Scoping Review.Journal of the American College of Emergency Physicians open · 2026
    Review
  4. Review
  5. Review
  6. Article
  7. Review
  8. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Ryan D PappalWashington University School of Medicine in St. Louis, St. Louis, MO.
Brian W RobertsDepartment of Emergency Medicine, Cooper University Hospital, Camden, NJ.
Winston WinklerWashington University School of Medicine in St. Louis, St. Louis, MO.
Lauren H YaegarBernard Becker Medical Library, Washington University School of Medicine in St. Louis, St. Louis, MO.
Robert J StephensDepartment of Emergency Medicine, Washington University School of Medicine in St. Louis, St. Louis, MO.
Brian M FullerDepartment of Emergency Medicine, Washington University School of Medicine in St. Louis, St. Louis, MO.
Washington University in St. Louis · USCooper University Hospital · US

Funding

Washington University Institute of Clinical and Translational Sciences (TL1)TL1TR002344 · NCATS · WASHINGTON UNIVERSITY · PI Jay F. Piccirillo · 2017 to 2026
$8.5M
SHORT-TERM TRAINING STUDENTS IN HEALTH PROFESSIONAL SCHOT35HL007815 · NHLBI · WASHINGTON UNIVERSITY · PI CHUNG, KOONG-NAH · 1995 to 2020
$2.8M
NCATS NIH HHS TL1 TR002344NHLBI NIH HHS T35 HL007815
6 · The paper itself

Abstract

objectiveAwareness with paralysis is a devastating complication for mechanically ventilated patients and can carry long-term psychologic sequelae. Hundreds of thousands of patients require mechanical ventilation in the emergency department and ICU annually, yet awareness has only been rigorously examined in the operating room (incidence ~0.1%). This report collates the global literature regarding the incidence of awareness with paralysis outside of the operating room. DATA SOURCES: We searched OvidMedline, Embase, Scopus, Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, ClinicalTrials.gov, conference proceedings, and reference lists. STUDY SELECTION: Randomized or nonrandomized studies (except single case studies) reporting on awareness with paralysis in the emergency department or ICU were eligible. DATA EXTRACTION: Two independent reviewers screened abstracts for eligibility. DATA SYNTHESIS: The search identified 4,454 potentially eligible studies. Seven studies (n = 941 patients) were included for analysis. A random effects meta-analysis of proportions along with multiple subgroup analyses was performed. Significant between-study heterogeneity in reporting of awareness with paralysis was noted, and the quality of the evidence was low. Analyses stratified by: 1) good-quality studies and 2) use of the modified Brice questionnaire to detect awareness revealed estimates of 3.4% (95% CI, 0-10.2%) and 1.9% (95% CI, 1.0-3.0%), respectively.

conclusionsThe incidence of awareness with paralysis in mechanically ventilated patients in the emergency department and ICU, as evaluated in a small number of qualifying studies from this comprehensive systematic review, appears much higher than that reported from the operating room. Given the clinical and statistical heterogeneity, caution is warranted in the interpretation of these findings. Further high-quality studies are needed to both define the true incidence and to target the prevention of awareness with paralysis in this vulnerable patient cohort.

Indexed as

AwarenessCritical CareCritical IllnessEmergency Service, HospitalHumansIntensive Care UnitsRespiration, ArtificialRespiratory Paralysis

Identifiers

PMID33566462
PMCPMC7902430
OpenAlexW3124469359

What OpenQuestion holds

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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.