Pulmonary hypertension is a world-wide problem which is gaining greater attention and is more frequently diagnosed now, more than the past ten or twenty years, because of the use and interpretation of echocardiograms.

Pulmonary Hypertension raises questions and discusses concepts which will address the issue of etiology of pulmonary hypertension, its pathobiology with its close proximity to cancer, and the consequences of severe PH which is right heart failure and death.