Dr. Aaron Waxman is one of the world’s top experts in shortness of breath differential diagnosis. Often shortness of breath is caused by pulmonary hypertension, or HFpEF, Heart failure with preserved ejection fraction. It is a condition that is frequently misdiagnosed. Biography and introduction. Hello from Boston! Dr. Anton Titov, MD. We are with Dr. Aaron Waxman, MD. He is Associate Professor of Medicine at Harvard Medical School. He is Executive Director, Center for Pulmonary Heart Diseases, and Director of Pulmonary Vascular Disease Program at Brigham and Women's Hospital in Boston. Dr. Waxman obtained his MD from Yale University School of Medicine and his PhD from Albany Medical College in New York. Dr. Aaron Waxman, MD, did residency training in medicine at the Yale New Haven Hospital and fellowship in pulmonary and critical care at the Yale New Haven Hospital. Dr. Aaron Waxman, MD, did research in Howard Hughes Medical Institute. Dr. Waxman's clinical and research interests include pulmonary arterial hypertension, right heart failure, thromboembolic disease and pulmonary vascular disease. His research focuses on the inflammatory mechanisms of pulmonary vascular remodeling that lead to right he art failure. Dr. Aaron Waxman, MD, has authored and co-authored over 150 peer-reviewed publications in international medical journals and presented numerous talks at international conferences on heart and lung disease. Dr. Anton Titov, MD. Dr. Waxman, thank you and welcome! Thank you! What is pulmonary arterial hypertension? Dr. Anton Titov, MD. How to recognize its symptoms? Dr. Anton Titov, MD. What are some of its causes? Dr. Anton Titov, MD.