[Indication of CGMS (Continuous Glucose Monitoring System) in the functionnal investigations of adult type 1 diabetic patients].

The Minimed CGMS (Continuous Glucose Monitoring System) is a holter-style electroenzymatic sensor allowing 3-days continuous monitoring of interstitial glucose fluctuations. This device gathers wide informations about the fluctuations of glucose over the day, in a more detailed (288 measurements) but less accurate way than those obtained from glucose self-monitoring. Its utilisation has been proposed for the analysis of nocturnal glucose control, to detect asymptomatic hypoglycemia or dawn phenomenon, and could be useful in the adjustment of type 1 diabetes therapy. Thus, its use could contribute to an improvement in glucose control, especially in patients with low compliance to self-monitoring. CGMS graphs can be used as an individual teaching support, or illustrate characteristic situations during collective educational sessions. The period chosen for the CGMS record, the duration of the record and the instructions given to the patients are of major importance to obtain accurate and reproductive graphs, that can be used in clinical practice.