He was trained in pulmonary hypertension and congenital heart diseases with a 2-year fellowship at the Royal Brompton Hospital in London. He is currently the National ESC Guidelines Coordinator of the Hellenic Cardiological Society and was a reviewer of the ESC Guidelines of Pulmonary Hypertension, Pericardial Diseases and Management of Cardiovascular Diseases during Pregnancy. He has published 148 scientific papers indexed in Pubmed (2817 citations, h-factor=24, May 2018). The research work of his academic team was recognised in the American College of Cardiology Annual Scientific Session 2017. As a member of the First Cardiology Department, he has participated in most recent major randomised clinical trials in the field of pulmonary hypertension.