[Comments on the 2013 ESC/EASD guidelines on diabetes, prediabetes and cardiovascular diseases].

Patients with type 2 diabetes mellitus have an increased cardiovascular risk compared with non-diabetics. The new guidelines provide physicians with orientation with respect to disorders in glucose metabolism and the risk of occurrence of cardiovascular diseases. An HBA1c level in the range of 6-8% is currently recommended, depending on cardiovascular comorbidities: in young diabetics 6% is recommended to avoid hypoglycemia and in older individuals with cardiovascular complications 8%. The target blood pressure given in the new guidelines is <140/85 mmHg. The guidelines still recommend bypass surgery instead of percutaneous coronary intervention (PCI) for diabetics; however, this recommendation is based on studies that do not reflect current practice and is disputable. Diagnostic measures and therapy of cardiac failure and arrhythmic disorders in the guidelines do not essentially differ between patients with and without diabetes, basically due to a lack of studies.