 He is especially well known for his works on the key research areas of dialysis-shunt-surgery, hybrid surgery, endovascular procedures, postoperative management of coagulation, sepsis and ischemia.After Hoffmann had finished his simultaneous studies in the subjects transverse flute and human medicine at the Ludwig Maximilian University of Munich and the University of Music and Performing Arts Munich, he worked as doctor and scientist at the clinic for surgery and polyclinic of the LMU-Großhadern from 1995 until 2012.In 1996 he became scientific assistant at the surgical clinic of the university of Munich.