MCG flash versus real time

Abstract

Continuous glucose monitoring (CGM) is a key tool for people with diabetes, allowing them to obtain detailed information about their blood glucose levels. There are two main types of CGM: flash continuous glucose monitoring (Flash CGM) and real-time continuous glucose monitoring (Real-Time CGM). Summary of Differences Between Flash CGM and Real-Time CGM

Flash Continuous Glucose Monitoring (Flash CGM)

• Reading frequency: does not provide continuous real-time data; the user must scan the sensor with a reader or mobile application to obtain glucose readings.
• Real-Time Data: does not offer real-time alarms for high or low glucose levels; readings are available only when the sensor is scanned.
• Sensor duration: sensors typically last between 10 to 14 days, depending on the manufacturer.
• Data History: stores glucose data for a limited period, usually 8 hours; historical data can be downloaded for later analysis.
• Usage and Maintenance: generally more economical than real-time CGM systems; requires periodic scans to obtain updated data.

Real-Time Continuous Glucose Monitoring (Real-Time CGM)

• Reading Frequency: provides continuous real-time data with frequent updates, typically every 1-5 minutes.
• Real-Time Data: offers real-time alarms and alerts for high and low glucose levels; allows the user to take immediate action in response to fluctuations in glucose levels.
• Sensor Duration: sensors can last between 7 to 14 days, depending on the model and manufacturer.
• Data History: continuously stores detailed glucose data throughout the sensor's usage period, facilitates detailed analysis of patterns and trends in glucose control.
• Usage and Maintenance: generally more expensive than Flash CGM due to advanced functionality; may require periodic calibrations (although some newer models are designed to minimize this need).

These systems should be chosen based on their individual characteristics, according to the specific needs of the patient.