Evaluating a Shared Decision Support Tool for Pediatric Cardiopulmonary Arrest: Mixed Methods Usability Study.

Area of Science:

• Medical Informatics
• Emergency Medicine
• Pediatric Critical Care

Background:

• Effective team communication is vital in pediatric cardiopulmonary arrest management.
• Delays or miscommunication can significantly impact patient survival rates.
• TeamScreen, a web-based interface, was developed to visualize clinical data and resuscitation steps during CPR.

Purpose of the Study:

• To evaluate the usability of the TeamScreen Figma prototype.
• To assess information retrieval efficiency and accuracy by experienced healthcare professionals.
• To identify areas for improvement in a simulated pediatric cardiac arrest scenario.

Main Methods:

• Usability testing with 20 pediatric emergency physicians and nurses.
• Participants completed 21 information retrieval tasks during a simulated cardiac arrest.
• Data collected included think-aloud recordings, PSSUQ, and posttest surveys.

Main Results:

• An 81.19% mean task success rate was achieved with a mean completion time of 8.13 seconds.
• High satisfaction scores (mean 2.40) were reported for information clarity and system utility.
• 16 usability issues were identified, including 5 major concerns regarding visibility, navigation, and information density.

Conclusions:

• TeamScreen shows potential for improving real-time information access in pediatric CPR.
• High task success and satisfaction scores support its role in clinical decision-making.
• Further refinements are needed for visibility, navigation, and information density to optimize the interface.