Pulmonary hypertension is a life-threatening disease whose underlying pathological causes have just begun to be understood in recent years. Consequently, new therapeutic procedures have been developed, some of which have already been established and some of which are currently being examined. This book offers the reader a systematic and complete picture of the disease, beginning with the basic physiology and pathophysiology of the pulmonary circulation and covering the new diagnostic classification and methods as well as differential therapy. The economical and ethical aspects concerning the care of patients and dealing with new therapeutic methods are also discussed. This book is aimed at specialists in the fields of pneumology and cardiology but is also suitable for general practitioners, dermatologists, and rheumatologists who have frequent contact with pulmonary hypertension while treating patients with collagen disease. A state-of-the-art scientific presentation as well as numerous useful tips for practical applications have been combined to create a convincing work.