Prof. Pignatelli works as full professor of internal medicinein the First internal Medice Clinic. Moreover, he is in charge as Dean of The Antithrombotic Center (AVK and NOACs center) , First Clinic, Sapienza University of Rome, coordinating a staff composed by physicians and nurses involved in both assistance and research in the field of atherothrombosis. This permits Him to access a large umber of Patients starting and monitoring anticoagulant therapies with both anti vitamin K antagonists and the new direct oral anticoagulants. All these results in a large number of publication in the fiend of anticoagulations in patients affected by atherothrombotic diseases and in particular atrial fibrillation. This last Issue represents the main interest of Dr Pignatelli resulting in more than 40 publications in the specific topic. Didactics data: He is the Dean of the Sapinenza University PhD school in Cardio Thoracic phytopathology and teaches in the Sapienza Medical school.