Professor Loeys is known for his innovative and high-quality scientific research into genetic disorders of the connective tissue and the cardiovascular system, which has made him the world leader in this field. Aneurysms-Osteoarthritis Syndrome is also known as Loeys–Dietz syndrome. It was identified and characterized by Harry C. Dietz and Dr. Loeys, for whom it is named. Professor Loeys is an active reviewer on 11 international journals, has made 68 book contributions and has 118 Abstracts, posters, platform presentations and invited lectures.