CGM sensors deliver an almost continuous glucose trace providing BG readings every 1 to 5 minutes, mitigating the need of SMBG and greatly increasing the information on BG fluctuations and trend (which shows that CGM reveals hypoglycemic and hyperglycemic events not visible by SMBG) ( Fig. The introduction of these “minimally invasive” needle CGM sensors in 1999 revolutionized, de facto, blood glucose (BG) concentration monitoring in diabetes and opened new exciting scenarios in the daily management of diabetes. Keywords: Blood glucose self-monitoring Diabetes mellitus Hyperglycemia Hypoglycemia Insulin infusion systems Finally, we review some recent advanced applications for diabetes treatment based on CGM sensors. Then, we discuss about the current use of CGM sensors from patients affected by diabetes, and, we report some works proving the beneficial impact provided by the adoption of CGM. In particular, first, we outline the technological evolution of CGM devices through the last 20 years. The aim of this paper is to offer an overview of current literature and future possible developments regarding CGM technologies and applications. Furthermore, the real-time availability of BG values has been stimulating the realization of new tools to provide patients with decision support to improve insulin dosage tuning and infusion. Indeed, by providing glucose real-time insights of BG dynamics and trend, and being equipped with visual and acoustic alarms for hypo- and hyperglycemia, CGM devices have been proved to improve safety and effectiveness of diabetes therapy, reduce hypoglycemia incidence and duration, and decrease glycemic variability. The FreeStyle Libre Sensor represents technology that is much less intrusive than traditional blood glucose monitoring and makes glucose testing hassle-free.By providing blood glucose (BG) concentration measurements in an almost continuous-time fashion for several consecutive days, wearable minimally-invasive continuous glucose monitoring (CGM) sensors are revolutionizing diabetes management, and are becoming an increasingly adopted technology especially for diabetic individuals requiring insulin administrations. The reader can even scan through clothing with a thickness of up to 4 mm.
The FreeStyle Libre system also offers software to generate concise reports to assist with the analysis of glucose data.
This scan gives you more information than monitoring with blood glucose test strip, without the need for routine finger pricks.