I am a specialist in general, visceral, vascular surgery, coloproctology, and advanced minimal invasive surgery.

I earned my MD from the University of Cologne, Germany, and received my professorship at the University Hospital of Berlin at the Charité in Germany.

I played a key role in the co-development of Trans anal Endoscopic Microsurgery (TEM) in the early nineties at the University Hospital of Cologne, Germany. Due to my initial pioneering work at the University of Cologne and the subsequent establishment of Minimal Invasive Surgery (MIS) in the abdomen and chest at the University Hospital of Cologne, Minimal Invasive Surgery has since become my clinical and scientific focus throughout my further career.

I have been the leading practitioner of trans anal endoscopic microsurgery for the removal of large polyps and small rectal cancerous tumors without the need for abdominal incisions. Additionally, my post-doctoral thesis (Habilitation) in the 1990s contributed to the development of laparoscopic instruments and a novel minimally invasive surgical technique for aortoiliac arteries. I gained extensive clinical experience during my clinical practice in Cologne, Berlin, Koblenz, and the surrounding area as a senior surgeon and as the chief (Chefarzt) of a surgical department in Germany the last 21 years.