Adult cardiac surgery

1989 , 1990 Visiting Professor at the Carolinas Heart Center, Charlotte / NC (Prof. Robiscek, Dr. Svenson) 1983 – 1990 Senior registrar at the Department for Cardio- vascular surgery, University Hospital Giessen 1990 – 1994 C3 – Professor and vice chairman at the Department for Cardiovascular Surgery,University Hospital Bonn 1994 - 2017 C4 – Professor and chairman, Department for Cardiovascular Surgery, University Hospital Marburg 2001 – 2005 Vice Medical Director, University Hospital Marburg 2005 – 2011 Medical Director, University Hospital Giessen and Marburg – Campus Marburg Board certifications for Cardiac Surgery and Vascular Surgery