Adverse Event Causes From 2022 for Four Continuous Glucose Monitors.

Area of Science:

• Medical Devices
• Diabetes Technology
• Patient Safety

Background:

• Continuous glucose monitors (CGMs) are crucial for diabetes management.
• A significant number of adverse events (281,963 in 2022) are associated with CGMs.
• Understanding these adverse events is vital for improving patient safety.

Purpose of the Study:

• To review the process of obtaining CGM adverse event data.
• To analyze the causes of adverse events reported to the US Food and Drug Administration (FDA).
• To identify common and device-specific causes of CGM malfunctions and injuries.

Main Methods:

• Adverse events for four major CGM products were extracted from the FDA database.
• Data was organized using SQL Server, categorizing events by malfunction or injury.
• Causes were determined by analyzing the text descriptions of adverse events, not solely relying on manufacturer codes.

Main Results:

• Common causes included events preventing users from obtaining readings and device inaccuracy.
• Specific causes varied depending on the particular CGM device.
• Analysis revealed a need to look beyond manufacturer codes to understand root causes.

Conclusions:

• Structuring CGM adverse event data by manufacturer and event type, followed by text analysis, aids in identifying causes.
• Analyzing adverse event data is a critical first step toward mitigating issues.
• This systematic approach can lead to improved safety and reliability of CGMs for individuals with diabetes.