Benefits and warnings after one year of Minimed 780 G hybrid closed loop pump treatment in type 1 diabetes adults

The benefits of a hybrid closed loop insulin pump system are generally compared to non-automated insulin pump treatment of type 1 diabetics whose glycemic control was often unsatisfactory. Here we report the results of a monocentric cohort of type 1 diabetics with a good glycemic control before the switch to the hybrid system. 83 adult patients were followed up for 12 months after the implementation and training of the hybrid system. We observed a significant improvement in the glycemic mean index at 3 and 6 months but not at 12 months, accompanied by a 10% increase in insulin requirements over the first few months. Surprisingly, the time spent in hypoglycemia did not decrease. An analysis shared with patients leads us to propose several measures to consider before switching to a hybrid closed loop system.