Integration of Flash Glucose Monitoring During the Transition of Care From Inpatient to Outpatient Settings in Patients With Type 2 Diabetes

Background: The use of continuous glucose monitoring (CGM) technology in the outpatient setting has been associated with both improved patient satisfaction(1) and increased glucose monitoring(2). It remains to be seen, how well this technology can be integrated during the transition from hospital discharge to outpatient settings. Here, we aim to assess the feasibility of introducing the FreeStyle Libre during the transition of care from inpatient to the outpatient environment in patients with Type 2 diabetes (T2D). We will assess CGM use as measured by the numbers of days used and frequency of daily scans. Methods: During the time period April and September 2020, 20 patients with T2D being discharged on multiple daily injections admitted to North Shore University Hospital were enrolled in this study. Exclusion criteria were those with adhesive allergy, CKD 4/5 or on dialysis and pregnant women. Participants were trained on how to use the FreeStyle Libre with the LibreLink mobile application. All patients received 2 Libre sensors at the time of discharge, one that was placed in the hospital and the other to be placed after 14 days. 1 participant died prior to discharge. Analyses included descriptive statistics, specifically categorical variables using frequencies and percentages while continuous variables using mean and standard deviation. Results: Among who used the mobile application, 10 were men and 9 were women. Majority of patients were Black (n=11, 57.9%) with a mean age of 52 years (range 31–76). The mean duration of diabetes was 9.7 years (range: 0 to 22) and mean Hemoglobin A1c of 11.2% (range: 5.5–15.5). 10 out of 19 persons used CGM for more than 2 weeks, while the remaining 9 utilized the CGM for less than 2 weeks. Mean average daily scans were 5 times per day (range: 1–12) with majority of the persons (n=15, 78.9%) scanning more frequently (3 or more times per day). The average glucose ranged from 62 to 268 mg/dl and the mean active CGM time was 52.05% (range 0–98). Mean glycemic variability was 29.17% (range: 14.5–56.7). Technical issues with the CGM included poor adhesion or issues connecting to the mobile application. Conclusion: Our study found that the initiation of CGM during the transition from hospital discharge to the outpatient setting is feasible and a useful tool. A limitation of this study was the inability for all people to use the mobile application due to incompatible phones or operating systems. References: 1. Beck RW, Riddlesworth TD, Ruedy K, et al. Continuous Glucose Monitoring Versus Usual Care in Patients With Type 2 Diabetes Receiving Multiple Daily Insulin Injections. Ann Intern Med. 2017;167(6):365–374. doi:10.7326/M16-2855. 2. Shehav-Zaltzman G, Segal G, Konvalina N, Tirosh A. Remote Glucose Monitoring of Hospitalized, Quarantined Patients With Diabetes and COVID-19. Diabetes Care. 2020;43(7):e75-e76. doi:10.2337/dc20-0696.