JMIR Publications

ABSTRACT

Background:

Effective team communication is critical in pediatric cardiopulmonary arrest management, where delays or miscommunication can jeopardize survival. TeamScreen, a web-based interface displayed on a large screen, was developed to enhance cardiopulmonary resuscitation (CPR) by providing real-time visualization of clinical data and resuscitation steps aligned with American Heart Association (AHA) Pediatric Advanced Life Support algorithms.

Objective:

This study evaluated the usability of the TeamScreen Figma prototype, evaluating how efficiently and accurately experienced emergency physicians and nurses retrieved critical information during a simulated pediatric in-hospital cardiac arrest (IHCA) scenario. Although no strict time constraints were imposed, participants were instructed to perform the tasks as spontaneously and as quickly as possible.

Methods:

Usability testing involved 20 pediatric emergency physicians and nurses with varied CPR experience. Participants performed 21 information-retrieval tasks within a simulated pediatric cardiac arrest scenario (shockable rhythm). Data collection included audio/video recordings via the “think-aloud” method, the Post-Study System Usability Questionnaire (PSSUQ) version 3, and a post-test survey. Effectiveness was measured by task completion rates, efficiency by time-on-task, and satisfaction via PSSUQ scores. Think-aloud data were analyzed for usability issues using Nielsen Norman Group’s severity ratings and Bastien and Scapin’s ergonomic criteria.

Results:

5 physicians and 15 nurses achieved an 81% task success rate, with a mean completion time of 8.13 seconds, calculated across all 21 tasks and all participants. PSSUQ scores reflected high satisfaction (mean: 2.40/7, lower is better), notably for information clarity and system utility. Qualitative analyses identified 21 usability issues, 8 deemed critical, primarily involving information visibility, navigation, and density, highlighting areas for interface and workflow enhancement.

Conclusions:

The usability evaluation confirmed TeamScreen’s potential to improve real-time information access during pediatric CPR, with strong task success and satisfaction scores supporting its role in aiding decision-making. Challenges with visibility, navigation, and information density require further refinement. These findings will guide improvements and inform the design of multicenter trials to assess TeamScreen’s efficacy in simulation-based resuscitation settings.