1. Department of Internal Medicine III, Cardiology and Angiology University Hospital Schleswig‐Holstein Arnold‐Heller‐Str.3, Haus K3 Kiel 24105 Germany
2. German Centre for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck Lübeck Germany
3. Medical Clinic II University Heart Center Lübeck Lübeck Germany
4. Department of Cardiology, Faculty of Medicine Assiut University Asyut Egypt
5. Medical Clinic II, Division of Electrophysiology University Heart Center Lübeck Ratzeburger Allee 160 Lübeck 23538 Germany