Diuresis in the Setting of Right Heart Failure: A New Look at an Old Problem

Authors: Srinivas Subramanian, MD


Pulmonary hypertension (PH) is defined as a mean pulmonary artery pressure greater than 25 mm Hg at rest or 30 mm Hg with exercise, as measured by right heart catheterization.1 Pulmonary hypertension can be classified as either primary pulmonary hypertension or idiopathic pulmonary arterial hypertension (IPAH) and secondary pulmonary hypertension. More recently the World Health Organization (WHO) instituted a classification based on etiology: groups 1–5.2

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