Remote Glucose Monitoring System in Hospitalized Patients With Diabetic Ketoacidosis (DKA)

Remote Glucose Monitoring Using the Dexcom G6 Continuous Glucose Monitoring (CGM) System in Hospitalized Patients With Diabetic Ketoacidosis (DKA)

The purpose of this research study is to investigate the use of continuous glucose monitoring (CGM) device DEXCOM G6 in non-critically patients treated for diabetic emergency such as diabetic ketoacidosis (DKA). Patients who have DKA require hourly monitoring of glucose (sugar) level which traditionally requires admission to the intensive care unit (ICU) for hourly fingerstick monitoring. With the use of CGM device, in this research study hourly fingerstick monitoring is replaced by continuous glucose monitor (CGM) which provides glucose levels continuously in real time for nurses and provider. The investigators are testing to see if in the future patients can be treated in the stepdown unit (an intermediate care level between the intensive care unit and the general medical unit) if they do not require higher level of care besides hourly glucose monitoring. Continuous glucose monitoring (CGM) device DEXCOM G6 currently FDA Approved for patients with diabetes and is widely used for glucose monitoring in patients with diabetes in the outpatient setting. The investigators want to study the use of the DEXCOM G6 CGM in the inpatient setting to monitoring glucose levels remotely in the treatment of diabetic emergencies such as diabetic ketoacidosis and compare their care to those receiving hourly fingerstick glucose monitoring in the ICU.

During the height of the COVID-19 pandemic, the investigators launched a quality improvement project with the goal of treating non-critically ill DKA patients outside of ICU setting to reallocate ICU beds for critically ill patients. The standard of care is for DKA patients to be treated in the ICU setting because the DKA protocol requires hourly fingerstick glucose monitoring, which is considered higher level of care and not appropriate for stepdown unit or medical/surgical wards. During this quality improvement project, the investigators monitored glucose levels remotely with continuous glucose monitoring (CGM) device DEXCOM G6, eliminating the need for hourly fingerstick glucose testing. Therefore, patients with DKA whose glucose levels were monitored with DEXCOM G6 CGM were treated in the stepdown unit instead of the ICU setting. Once the number of COVID cases decreased and ICU beds were more readily available, the hospital returned to practicing pre-COVID standard of care, which was admitting DKA patient to the ICU for hourly glucose monitoring. This study is a combined retrospective and prospective study of DKA patients. The investigators propose a retrospective chart review of DKA patients who had glucose levels monitored with DEXCOM G6 CGM during the COVID-19 pandemic. In the prospective portion of this study, participants will be enrolled and will undergo continuous glucose monitoring with DEXCOM G6 instead of the hourly fingerstick point of care glucose testing. Data collected for participants monitored via DEXCOM G6 (retrospective and prospective study data combined analysis) will be compared to participants with glucose levels monitored via hourly fingerstick in the ICU setting.

Continuous glucose monitoring by DEXCOM G6 (glucose monitoring device) in a step-down unit in participants with DKA

Retrospective chart review of DKA patients that received hourly glucose monitoring by finger stick while in the ICU

Time to resolution of metabolic acidosis measured in hours. Resolution defined as anion gap (AG) <17 mEq/L and bicarbonate >19 mEq/L.

The number of hypoglycemic events will be recorded. A hypoglycemic event is defined as glucose level <70 mg/dL.

Cost savings calculated by comparison of cost when non-critically DKA participants have glucose levels monitored via CGM and treated in the stepdown unit compared to participants who have glucose levels monitored via hourly fingersticks and treated in the ICU.

Inclusion Criteria: Age >18 years AG>20 mEq/L Bicarbonate <15mEq/L Positive urine ketones or beta hydroxybutyrate >0.3 mmol/L Exclusion Criteria: Hypotension (Blood Pressure below 80/60 mmHg) Requirement for pressor therapy Contraindication for utilizing Dexcom CGM

Juvenile Diabetes Research Foundation Continuous Glucose Monitoring Study Group. Validation of measures of satisfaction with and impact of continuous and conventional glucose monitoring. Diabetes Technol Ther. 2010 Sep;12(9):679-84. doi: 10.1089/dia.2010.0015.

Nair BG, Dellinger EP, Flum DR, Rooke GA, Hirsch IB. A Pilot Study of the Feasibility and Accuracy of Inpatient Continuous Glucose Monitoring. Diabetes Care. 2020 Nov;43(11):e168-e169. doi: 10.2337/dc20-0670. Epub 2020 May 11. No abstract available.

Pasquel FJ, Umpierrez GE. Individualizing Inpatient Diabetes Management During the Coronavirus Disease 2019 Pandemic. J Diabetes Sci Technol. 2020 Jul;14(4):705-707. doi: 10.1177/1932296820923045. Epub 2020 May 5.

Chow KW, Kelly DJ, Rieff MC, Skala PA, Kravets I, Charitou MM, Morley EJ, Gupta R, Miller JD. Outcomes and Healthcare Provider Perceptions of Real-Time Continuous Glucose Monitoring (rtCGM) in Patients With Diabetes and COVID-19 Admitted to the ICU. J Diabetes Sci Technol. 2021 May;15(3):607-614. doi: 10.1177/1932296820985263. Epub 2021 Jan 12.

Davis GM, Galindo RJ, Migdal AL, Umpierrez GE. Diabetes Technology in the Inpatient Setting for Management of Hyperglycemia. Endocrinol Metab Clin North Am. 2020 Mar;49(1):79-93. doi: 10.1016/j.ecl.2019.11.002.

Umpierrez GE, Klonoff DC. Diabetes Technology Update: Use of Insulin Pumps and Continuous Glucose Monitoring in the Hospital. Diabetes Care. 2018 Aug;41(8):1579-1589. doi: 10.2337/dci18-0002. Epub 2018 Jun 23.

Newton CA, Smiley D, Bode BW, Kitabchi AE, Davidson PC, Jacobs S, Steed RD, Stentz F, Peng L, Mulligan P, Freire AX, Temponi A, Umpierrez GE. A comparison study of continuous insulin infusion protocols in the medical intensive care unit: computer-guided vs. standard column-based algorithms. J Hosp Med. 2010 Oct;5(8):432-7. doi: 10.1002/jhm.816.

Pal R, Banerjee M, Yadav U, Bhattacharjee S. Clinical profile and outcomes in COVID-19 patients with diabetic ketoacidosis: A systematic review of literature. Diabetes Metab Syndr. 2020 Nov-Dec;14(6):1563-1569. doi: 10.1016/j.dsx.2020.08.015. Epub 2020 Aug 18.

Li J, Wang X, Chen J, Zuo X, Zhang H, Deng A. COVID-19 infection may cause ketosis and ketoacidosis. Diabetes Obes Metab. 2020 Oct;22(10):1935-1941. doi: 10.1111/dom.14057. Epub 2020 May 18.

Fayfman M, Pasquel FJ, Umpierrez GE. Management of Hyperglycemic Crises: Diabetic Ketoacidosis and Hyperglycemic Hyperosmolar State. Med Clin North Am. 2017 May;101(3):587-606. doi: 10.1016/j.mcna.2016.12.011.

Livingston E, Desai A, Berkwits M. Sourcing Personal Protective Equipment During the COVID-19 Pandemic. JAMA. 2020 May 19;323(19):1912-1914. doi: 10.1001/jama.2020.5317. No abstract available.