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Sleep-Related Breathing Disorders 

Sleep-Related Breathing Disorders
Chapter:
Sleep-Related Breathing Disorders
Author(s):

Mithri R. Junna

DOI:
10.1093/med/9780190464868.003.0076
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date: 19 October 2019

Pulmonary hypertension (PH) is defined by a mean pulmonary artery pressure of at least 25 mm Hg at rest, as measured during right heart catheterization (RHC). The many causes of PH are classified into 5 groups. The clinical presentation of patients with PH is nonspecific: progressive dyspnea, chest pain, lower extremity edema, and fatigue. Typically, a diagnosis of PH is suggested by an increased right ventricular systolic pressure on transthoracic Doppler echocardiography and is confirmed with RHC.

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