LibreView monitors average glucose, along with the standard deviation for assessing the variability of the glucose readings, as well as the tests per day, glucose history, and even insulin data, if the patient logs their insulin into the feature on the meter. LibreView allows patients to upload data and create easy-to-read glucose reports for both patients and health care professionals. Patients can also download software for their Mac or personal computers called LibreView that is a cloud-based diabetes management system for tracking blood glucose levels. Both trials also were able to show an increased time in the blood glucose target range and reduced hypoglycemia by limiting hypoglycemic events by 38% in type 1 diabetics and 43% in type 2 diabetics.
Both trials resulted in about a 3 times increase in glucose monitoring. In the REPLACE Trial of type 2 diabetics, patients used the device by scanning an average of 8.3 times, while averaging 3 times per day with traditional blood glucose finger stick testing. The reading device stores 90 days of glucose data to allow accurate readings to present to health care professionals in coordination of their A1c, which is a 3-month average of the patient’s blood glucose.Īccording to the IMPACT Trial of type 1 diabetics, patients used the device by scanning an average of 15.1 times per day, compared with testing with traditional blood glucose finger sticks averaging 5.6 times per day. The reading device can then use that data to provide daily patterns, the percentage of time that the blood glucose was within the target range, and the number of low-glucose events. The sensor continuously measures the glucose level every 60 seconds and stores the readings every 15 minutes, requiring it to be scanned every 8 hours. For each scan, users get a blood glucose reading, a trend, and an 8-hour history.
Readings are taken by swiping the reader system over the sensor for a painless 1-second scan. FreeStyle Libre is used with a sensor that is placed on the back of the upper arm, and a sensor filament is inserted into the skin and measures glucose readings based on interstitial fluid.
FreeStyle estimates that the Libre meter has a mean lifespan of 3 years. Each sensor can be worn for up to 10 days, requiring 3 sensors for a 1-month supply. Upon the first fill, each patient requires a reader, along with sensors. The main difference between the FreeStyle Libre system from most blood glucose meters on the market is that it uses a sensor that is left on the body for a continuous reading, rather than getting traditional finger stick blood glucose readings throughout the day. The FreeStyle Libre is a continuous blood glucose monitor on the market for type 1 and diabetics produced by Abbott, the manufacturer of the FreeStyle meter lines.
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