Background: Type 1 diabetes can be difficult to control. Augmented pump therapy (CSII-rtCGM) has become an important tool for controlling blood glucose and decreasing hypoglycemia. Methods: Describe the results 1 year after starting CSII-rtCGM in patients with diabetes in Medellín, Colombia. This is an observational, retrospective study. Patients with type 1 and type 2 diabetes started on CSII-rtCGM between January 2008 and June 2015 were included. Qualitative variables were analyzed as absolute or relative frequencies. Quantitative variables were obtained through central tendency and dispersion according to the normal distribution of the analyzed variable using Kolmogorov–Smirnov. SPSS 19 from IBM was used. Results: Two hundred forty-seven patients were identified, of those 183 were included. The starting HbA1C was 8.7% ± 1.7% and 7.4% ± 0.8% (P < 0.05) 1 year later. 16.5% of patients had been admitted to the hospital before starting CSII-rtCGM, after 1 year the admission rate was 6.0% (P < 0.05). The incidence of severe hypoglycemia at the beginning was 32%, 1 year later it was 7.1%. Conclusion: CSII-rtCGM therapy improves glucose control and decreases severe hypoglycemic events and hospital admission rate.