Introduction: Continuous glucose monitoring system is a wide spreading method in the control of the therapy of diabetes, nowadays recording the fluctuation of the glucose level between two measurements during the classical glucose measurements. Patients and method: 79 measurements of 53 diabetic patients were analysed. 48/53 (90.5%) (30 women, 18 men, mean age: 26.3 ± 16.8 years) were patients with type 1 diabetes, 5/53 (9.5%) (4 women, 1 man, mean age: 58.4 ± 6.2 years) were patients with type 2 diabetes. After delineating the technical details of this technique, results of the measurements recorded in the authors' patients population are presented reviewing the advantages and disadvantages of the method. During the average measurements of 3-4 days MiniMed apparatus were used. Results: The method proved to be useful in detecting the down-phenomenon and the asymptomatic hypoglycemic events mainly, however, long hyperglycemic periods were seen several times. The method led to change of therapy in 64.5% of all measurements, but the authors present unsuccessful measurements due to the error of the sensor and cases when the results did not help the therapeutic decision. Conclusions: Authors describe a wide range of indications of the usage of this method based on their own and other authors' experience presenting its applicability and limits. It is highlighted that the method is not effective in patients with type 2 diabetes. Presenting their results the authors emphasize that this method provides extra information compared to the classical measurements leading to a better glycemic control and life expectancy in type 1 diabetes patients.
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