Dexcom G6
Device Name:
G6
Manufacturer:
Dexcom, 6340 Sequence Dr, San Diego, CA 92121, UNITED STATES.
Measuring functions:
Blood glucose
Primary Client Use:
Intended for self-measurement and home use
Measurement Site:
Finger
Measurement Occurrence:
Continuous measurement
Availability:
Available Currently
Description:
The Dexcom G6 is an automatic blood glucose meter. Although its blood glucose measurement technology has been evaluated, it is not possible to base a determination on its accuracy from this research. Blood glucose measurements are taken from the finger. It is intended for self-measurement and home use.
Assessment:
The technology used in the Dexcom G6, to measure blood glucose, has been assessed, in a specific population, according to a non-standard protocol.
Recommendations:
Accuracy AssessmentRecommendationBasis
BG Medaval None When an evaluation is carried out using a non-standard protocol, no inference can be made on accuracy based on a standard protocol.
Validation Publications:

Wadwa RP, Laffel LM, Shah VN, Garg SK. Accuracy of a Factory-Calibrated, Real-Time Continuous Glucose Monitoring System During 10 Days of Use in Youth and Adults with Diabetes. Diabetes Technol Ther. 2018 Jun;20(6):395-402. Epub: 2018 Jun 14. doi: 10.1089/dia20180150. PMID: 29901421. Available from: PMC6110124.

Ad Hoc protocol Adults and children (Note: The new factory-calibrated G6 real-time CGM system provides accurate readings for 10 days and removes several clinical barriers to broader CGM adoption.)

Relevant Publications:

Huang E, Demirel S, Bliss C, Savaser D, Castle JR. Reliability of the Dexcom G6 Continuous Glucose Monitor During Hyperbaric Oxygen Exposure. Diabetes Technol Ther. 2020 May;22(5):360-366. Epub: 2020 Feb 6. doi: 10.1089/dia20190390. PMID: 31916854. Available from: PMC7196364.

In those without DM, there is a statistically significant, but clinically insignificant, effect of gas+pressure condition on the glucose estimate detected by the Dexcom G6 CGM system. (n=26)

Huang E, Demirel S, Bliss C, Savaser D, Castle JR. Reliability of the Dexcom G6 Continuous Glucose Monitor During Hyperbaric Oxygen Exposure. Diabetes Technol Ther. 2020 May;22(5):360-366. Epub: 2020 Feb 6. doi: 10.1089/dia20190390. PMID: 31916854. Available from: PMC7196364.

In those without DM, there is a statistically significant, but clinically insignificant, effect of gas+pressure condition on the glucose estimate detected by the Dexcom G6 CGM system. (n=26)

Herzig

Validation Publications for Equivalent Devices:
D, Vettoretti M, Guensch DP, Melmer A, Schürch D, Roos J, Goerg AMC, Krutkyte G, Cecchini L, Facchinetti A, Vogt AP, Bally L. Performance of the Dexcom G6 Continuous Glucose Monitoring System During Cardiac Surgery Using Hypothermic Extracorporeal Circulation. Diabetes Care. 2023 Apr 1;46(4):864-867. doi: 10.2337/dc22-2260. PMID: 36809308.

Cardiac surgery using hypothermic extracorporeal circulation challenges the accuracy of the Dexcom G6 CGM although recovery appears to occur thereafter.

Avari P, Tang W, Jugnee N, Hersi I, Al-Balah A, Tan T, Frankel AH, Oliver N, Reddy M. The Accuracy of Continuous Glucose Sensors in People with Diabetes Undergoing Hemodialysis (ALPHA Study). Diabetes Technol Ther. 2023 Jul;25(7):447-456. doi: 10.1089/dia.2023.0013. PMID: 36961385.

Further studies are required to evaluate Dexcom G6 accuracy in people on hemodialysis.

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