Building a real-time ICU patient analytics pipeline with AWS Lambda event source mapping

This article discusses building a real-time ICU patient analytics pipeline using AWS services, focusing on serverless architectures for healthcare monitoring and data processing.

• Uses AWS Lambda event source mapping to process real-time medical sensor data from ICU patients
• Implements two key Lambda functions:
  • Filters critical health events (SpO2 levels below 90%)
  • Aggregates sensor data in 10-minute tumbling windows
• Leverages AWS IoT Core, Kinesis Data Streams, and Amazon S3 with Iceberg format for data ingestion and storage
• Provides real-time alerting through Amazon SNS with rate limiting to prevent alert fatigue
• Enables long-term analytics by storing aggregated patient data in queryable format

The solution demonstrates a scalable, serverless approach to healthcare monitoring that can process high-frequency sensor data while providing immediate alerts and historical analysis capabilities.