Hypoglycemia, frequently asymptomatic, may lead to cardiac arrythmias and induce an increased risk of cardiovascular morbidity and mortality in patients with type 2 diabetes (T2D). The study hypothesize is that the hypoglycemia reduction, achieved with the FREESTYLE LIBRE device, a Glucose Continuous Monitoring system, may decrease cardiac arrythmias associated with hypoglycemia. So the main objective is to evaluate the efficacy of the FREESTYLE LIBRE system, associated with a specific therapeutic education on the cardiac arrythmias reduction, compared to a capillary ASG system with standard therapeutic education, in patient with T2D with high risk of hypoglycemia.

This is a open, multicenter, controlled, randomized study in parallel group.

Inclusion criteria:

• Type 2 diabetes (diagnosis based on the World Health Organization criteria)

• Treatment with insulin therapy (continuous subcutaneous insulin Infusion or more than 1 daily injection)

• Resting heart beat ≥ 60bpm

• High risk of hypoglycemia defined as :

  • Estimated glomerular filtration rate 15-59 ml/min/1.73 m² (according to CKD-EPI formula)
  • Or history of stable proliferative diabetic retinopathy
  • Or body mass index ≤ 30 kg/m²
  • Or history of severe hypoglycemia in the previous 6 months
  • Or history of non-severe ≤70mg/dL hypoglycemia in the previous 4 weeks

Exclusion criteria:

• Type 1 diabetes mellitus or diabetes due to other cause
• History of atrial fibrillation
• Pacemaker
• Estimated glomerular filtration rate <15 ml/min/1.73 m² (according to CKD-EPI formula)
• Currently using a flash continuous Glucose Monitoring device
• In the investigator's opinion, acute or chronic medical condition considered as unsuitable for inclusion in the study .