Pulmonary hypertension (PHT)

Normally, the pressure in the pulmonary vascular system is much lower than in the systemic circulation (the Aorta and all its branches).

Increased pulmonary pressure can result from various pulmonary diseases, acute or chronic, and can be a complication secondary to various valvular problems or other anatomical alterations of the heart.

Sometimes, pulmonary hypertension develops without any evident cause.

Usually, chronic pulmonary hypertension effects the right compartments of the heart and the end result is right heart failure.