The condition of high blood pressure within the arteries of the lungs is known as pulmonary hypertension. Chest pain, tiredness, fast heartbeat, syncope, shortness of breath and swelling of the legs are some of its most common symptoms. The causes of pulmonary hypertension are not completely known. However, some of the risk factors include a family history of pulmonary hypertension, sickle cell disease, sleep apnea, HIV/AIDS, blood clots in the lungs and problems with the mitral valve. Physical examination, electrocardiography, chest X-rays, pulmonary function tests and computed tomography scans are some of the common techniques of diagnosing pulmonary hypertension. Treatment methods include atrial septostomy, lung transplantation and pulmonary thromboendarterectomy. The topics included in this book on pulmonary hypertension are of utmost significance and bound to provide incredible insights to readers. It presents researches and studies performed by experts across the globe. The extensive content of this book provides the readers with a thorough understanding of the subject.