1. Department of Thoracic and Cardiovascular Surgery, West German Heart and Vascular Center University of Duisburg‐Essen Essen Germany
2. Department of Anesthesiology University of Duisburg‐Essen Essen Germany
3. Department of Cardiovascular Diseases University Hospitals Leuven Leuven Belgium
4. Department of Cardiovascular Surgery Pronto Socorro Cardiológico de Pernambuco (PROCAPE) Recife Pernambuco Brazil
5. Department of Cardiovascular Surgery S.G. Sukhanov Federal Center of Cardiovascular Surgery E.A. Vagner Perm State Medical University Perm Russia
6. Federal Center for Cardiovascular Surgery, Department of Cardiovascular Surgery Astrakhan State Medical University Astrakhan Russia
7. Department of Cardiology & Vascular Medicine, West German Heart and Vascular Center University of Duisburg‐Essen Essen Germany