Abstract
Pulmonary hypertension (PHT) is a arterial vascular disease that leads to severe cardiac and pulmonary deterioration. It is a complex disease the requires monitoring and treatment in multidisciplinary units. It is classified into five groups, encompassing pathologies with different etiologies, but a similar pathophysiology. Patients classified as PHT group 1 are characterized by the involvement of vasodilatory capacity and remodeling of blood vessels, those in group 2 by left heart involvement, those in group 3 by involvement secondary to a pulmonary disease or hypoxia, those in group 4 by arterial obstruction, and those in group 5 by unknown or multifactorial causes. The clinical manifestations can overlap with other cardiopulmonary diseases. Therefore, it is important to define the criteria of suspicion in at-risk patients, follow the diagnostic algorithm, and start treatment early. The treatment is different in the three groups, but its purpose is mainly to decrease pulmonary artery pressure or treat the causes that trigger it.
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