The editors of the Methodist DeBakey Cardiovascular Journal wish to thank Alan B. Lumsden, M.D., and Myung H. Park, M.D., for serving as guest editors of this special issue on pulmonary hypertension. Dr. Lumsden holds the Walter W. Fondren III Distinguished Endowed Chair at the Houston Methodist DeBakey Heart & Vascular Center in Houston, Texas, and is a professor of Cardiovascular Surgery at the Weill Cornell Medical College in New York. After receiving his medical degree from the University of Edinburgh, Scotland, Dr. Lumsden completed his internship in general surgery at the Royal Infirmary of Edinburgh followed by a surgery residency and clinical/research fellowships in vascular surgery at Emory University School of Medicine in Atlanta.

Upon completing his postdoctoral training, Dr. Lumsden served as a collaborative scientist at Emory's Yerkes National Primate Research Center, remaining there for several years and eventually becoming chief of the Division of Vascular Surgery. In 2002, Dr. Lumsden joined the faculty at the Baylor College of Medicine in Houston as professor and chief of the Division of Vascular Surgery and Endovascular Therapy. He assumed his current positions at Houston Methodist Hospital in 2008.

Dr. Lumsden is a leader in the field of endovascular surgery, with proven clinical and research expertise in stent graft treatment of thoracic and abdominal aortic aneurysms, stenting and endarterectomy in carotid arterial disease, renovascular hypertension, and other vascular therapies. He also directs the center's annual Pumps & Pipes program, a unique Houston collaborative that explores shared challenges and technologies among the energy/aerospace industries and cardiovascular medicine. Dr. Lumsden has conducted numerous studies funded by the National Institutes of Health and has contributed more than 300 papers to the medical literature as well as numerous abstracts, books, and book chapters.

Dr. Park obtained her medical degree from the Temple University School of Medicine in Philadelphia and stayed on to complete an internship and residency in internal medicine at Temple University Hospital. Upon finishing her residency, Dr. Park completed a fellowship in cardiovascular medicine at the Medical College of Virginia followed by an advanced fellowship in heart failure and cardiac transplantation at the Cleveland Clinic Foundation. She currently serves as chief of the Division of Heart Failure and Transplant at the Houston Methodist DeBakey Heart & Vascular Center. Prior to joining the Houston Methodist Hospital medical faculty, Dr. Park served as associate professor of medicine and director of the Pulmonary Vascular Disease Program at the University of Maryland School of Medicine.

Dr. Park is a member of the American College of Cardiology, the Heart Failure Society of America, the International Society of Heart and Lung Transplantation, and the Pulmonary Hypertension Association. She has presented original research at national and international scientific meetings and is an investigator in many research trials involving the treatment of pulmonary arterial hypertension, advanced heart failure, and cardiac transplantation. Dr Park has published numerous papers in the areas of management and treatment of pulmonary hypertension, cardiac transplant immunology, ventricular assist devices, cardiac allograft rejection, and medical therapies for patients with end-stage congestive heart failure.