Cascading Policies Provide Fault Tolerance for Pervasive Clinical Communications

Area of Science:

• Biomedical Informatics
• Mobile Health
• Health Information Systems

Background:

• Timely delivery of urgent clinical laboratory results is critical for patient care.
• Existing notification systems faced challenges with mobile device connectivity and message delivery.
• The need for a robust and adaptable system for critical results notification was identified.

Purpose of the Study:

• To implement an end-to-end notification system for urgent clinical laboratory results.
• To ensure secure and reliable delivery of time-sensitive patient data to mobile devices.
• To develop a fault-tolerant system addressing message delivery failures and network issues.

Main Methods:

• Developed a notification system pushing urgent results to Blackberry 7510 devices via Nextel.
• Utilized user roles and notification policies to manage clinical notification procedures.
• Implemented cascading fault-tolerance policies for message timeouts and delivery failures.

Main Results:

• The system successfully delivered urgent clinical laboratory results to mobile devices.
• Fault-tolerance policies effectively addressed unexpected message delivery failures.
• The system demonstrated adaptability in various network conditions, including device reconnection.

Conclusions:

• The implemented pervasive notification system is adaptable and fault-tolerant.
• The system ensures secure, critical, and time-sensitive delivery of patient laboratory results.
• This approach enhances clinical workflow by providing reliable mobile notifications.