Feasibility of 10-day use of a continuous glucose-monitoring system in adults with type 1 diabetes.
OBJECTIVE
The purpose of this pilot study was to evaluate the feasibility of 10-day use of a transcutaneous, real-time, continuous glucose-monitoring (CGM) system. All previous reports using different CGM systems were for 3-, 5-, or 7-day use.


METHODS
On day 1, subjects received the CGM device (SEVEN System) and underwent training on proper use. Subjects returned to the clinic on days 2, 7, and 10 for in-clinic sessions. On days 2 and 7, half the subjects performed fingersticks every 15 min and the other half had Yellow Springs Instruments (YSI) samples drawn every 15 min. On day 10, all subjects participated in an 8-h in-clinic session with YSI and fingerstick testing.


RESULTS
The median absolute relative difference for CGM versus YSI was 12.6, 11.3, and 14.5% on days 2, 7, and 10, respectively (P = 0.63). CGM performed better on day 10 when compared with self-monitoring of blood glucose as compared with YSI.


CONCLUSIONS
This is the first study to document 10-day use of a 7-day CGM system.
Garg
Satish K
SK
Barbara Davis Center for Childhood Diabetes, University of Colorado Denver, Aurora, Colorado, USA. satish.garg@uchsc.edu
Voelmle
Mary K
MK
Gottlieb
Peter
P
D000328:Adult; D001786:Blood Glucose / Q000032:analysis*; D015190:Blood Glucose Self-Monitoring / Q000295:instrumentation / Q000379:methods / Q000592:standards; D003922:Diabetes Mellitus, Type 1 / Q000097:blood*; D005260:Female; D006801:Humans; D008297:Male; D018670:Monitoring, Ambulatory / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods* / Q000592:standards; D013997:Time Factors
D001786:Blood Glucose