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Impact of Bed Availability and Cognitive Load on Intensive Care Unit Bed Allocation: a Vignette-based Clinical Trial

Vignette-based Randomized Controlled Trial of the Decision Making Process of Bed Allocation in the Intensive Care Unit: Impact of Bed Availability and Cognitive Load.

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02430454
Enrollment
178
Registered
2015-04-30
Start date
2015-04-30
Completion date
2016-06-30
Last updated
2016-01-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

There Are no Specific Conditions Under Study, This Study Evaluates the Clinical Decision-Making Associated With Intensive Care Units Rationing

Keywords

ICU, decision making

Brief summary

Decisions about ICU beds allocations are made everyday, specially in countries with scarcity of ICU beds, such as Brazil. ICU triage, most of the time, is not structured, which may lead to faulty decision making, possibly leading to bad clinical outcomes. It has been shown that external factors may influence the decision making process. The investigators intend to evaluate the impact of bed availability and cognitive load on the ICU bed allocation process by submitting groups of individuals to a vignette based randomized controlled trial simulating conditions with or without increased cognitive load and conditions with or without scarcity of ICU beds.

Detailed description

Vignettes will be constructed based on consecutive patients for whom ICU bed was solicited. Vignettes will be validated through the evaluation of 8 experts in situations with or without bed scarcity. Vignettes with more than 80% concordance on ICU disposition (admission or refusion) will be used in the trial. Intensive care doctors in Brazil will be asked to answer an online questionnaire with demographic characteristics and randomized to one of two groups. The experimental group will be submitted to increased cognitive load conditions, meaning that they will be encouraged to give their first impression on the vignettes, will have a time limit to answer the questions and will have popups with sound and videos, with the purpose to distract the respondents. The control group will be encouraged to think thoroughly and will have no time limit or distractions. Vignettes will be presented, randomly, in conditions with or without scarcity of ICU beds to both groups. So, respondents with and without increased cognitive load will evaluate vignettes in conditions with and without scarcity of ICU beds.

Interventions

BEHAVIORALIncreased cognitive load

simulated conditions to increase cognitive load: encourage first impression, time-limit, distractions

Sponsors

University of Sao Paulo General Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Masking
NONE

Eligibility

Sex/Gender
ALL
Healthy volunteers
Yes

Inclusion criteria

* Intensive care unit doctors participating in specialty email lists

Exclusion criteria

* Consent not provided

Design outcomes

Primary

MeasureTime frameDescription
simulated ICU admission rates24 hoursdifference on simulated ICU admission rates between the experimental and control groups, comparing to the expected allocation (designated by the experts that validated the vignettes and Society of Critical Care Medicine priority rank)

Secondary

MeasureTime frameDescription
Time to complete the questionnaire60 minutesdifference on time to complete the questionnaire between the two groups

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026