healthcare professionals working in emergency medicine, intensive care medicine, anesthesiology
Conditions
Interventions
Group 1: Execution of 24 standardized tasks on a transport ventilator (Hamilton T1) during a full-scale simulation scenario (single appointment, 45-60 min)
Group 2: Execution of 24 standardized tasks
Sponsors
Uniklinik RWTH Aachen
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: • Participants must be medical or non-medical healthcare professionals working in emergency medical services, intensive care medicine, anesthesiology, or emergency medicine. • Participants must, as part of their professional duties, regularly transport mechanically ventilated patients using a transport ventilator either within a hospital (in-hospital) or outside a hospital (out-of-hospital).
Exclusion criteria
Exclusion criteria: • Prior experience with one or more of the three transport ventilators used in this study • Use of sedating medication, alcohol, or drugs within the last 10 hours prior to study participation • Failure to meet the minimum rest period of 11 hours since the end of the last work shift • Refractive error +3.0 diopters • Insufficient German language proficiency that does not allow adequate understanding of the tasks or the required instructions
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Due to the exploratory study design, no primary or secondary endpoints were defined. Accordingly, inferential statistical significance testing was not performed. The endpoint of the study is the safety of use of the transport ventilators. Differences in safety of use are captured using several complementary parameters. First, error-free performance is assessed, defined as the inverse of the total number of use errors and close calls. In addition, the time required by a participant to complete a task is measured. Furthermore, participants assign a school grade to each transport ventilator and evaluate it using the System Usability Scale (SUS) and the INTUI score. In a post-intervention interview, participants are subsequently asked about causes they consider relevant for use errors, close calls, or other notable issues that occurred during task performance. These statements serve the subsequent qualitative interpretation within a human factors analysis to explore the underlying cognitive or ergonomic mechanisms. In addition, continuous recordings from the eye-tracking glasses worn throughout the entire scenario are incorporated into the error analysis. Predefined, task-specific areas of interest (AOIs), time to first fixation (TFF), and semi-quantitative heatmaps are analyzed to visualize patterns of visual attention and to objectively identify potential usability problems. | — |
Countries
Germany
Contacts
Public ContactChristopher Plata
Uniklinik RWTH Aachen
Outcome results
None listed