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pulmonary hypertension - vertaling naar arabisch
![[[Right ventricle]] (on left side)](https://commons.wikimedia.org/wiki/Special:FilePath/CG Heart.gif?width=200 "[[Right ventricle]] (on left side)")
.jpg?width=200 "Cor pulmonale")
![Phonocardiogram and jugular venous pulse tracing from a middle-aged man with pulmonary hypertension caused by cardiomyopathy. The [[jugular venous]] pulse tracing demonstrates a prominent a wave without a c or v wave being observed. The [[phonocardiograms]] (fourth left interspace and cardiac apex) show a murmur of tricuspid insufficiency and ventricular and atrial gallops.](https://commons.wikimedia.org/wiki/Special:FilePath/Phonocardiogram.jpg?width=200 "Phonocardiogram and jugular venous pulse tracing from a middle-aged man with pulmonary hypertension caused by cardiomyopathy. The [[jugular venous]] pulse tracing demonstrates a prominent a wave without a c or v wave being observed. The [[phonocardiograms]] (fourth left interspace and cardiac apex) show a murmur of tricuspid insufficiency and ventricular and atrial gallops.")
![[[Micrograph]] showing [[arteries]] in pulmonary hypertensive with marked thickening of the walls.](https://commons.wikimedia.org/wiki/Special:FilePath/Pulmonary hypertensive arteriopathy (4348170715).jpg?width=200 "[[Micrograph]] showing [[arteries]] in pulmonary hypertensive with marked thickening of the walls.")
.jpg?width=200 "Severe tricuspid regurgitation")
![The variation in pressure in the [[left ventricle]] (blue line) and the [[aorta]] (red line) over two [[cardiac cycle]]s ("heart beats"), showing the definitions of systolic and diastolic pressure.](https://commons.wikimedia.org/wiki/Special:FilePath/Cardiac cycle pressure only.png?width=200 "The variation in pressure in the [[left ventricle]] (blue line) and the [[aorta]] (red line) over two [[cardiac cycle]]s (\"heart beats\"), showing the definitions of systolic and diastolic pressure.")
Wikipedia
Pulmonary hypertension (PH or PHTN) is a condition of increased blood pressure in the arteries of the lungs. Symptoms include shortness of breath, fainting, tiredness, chest pain, swelling of the legs, and a fast heartbeat. The condition may make it difficult to exercise. Onset is typically gradual.
According to the latest defintion at the 6th World Symposium of Pulmonary Hypertension, a patient is deemed to have pulmonary hypertension if the pulmonary mean arterial pressure is greater than 20mmHg at rest, and Pulmonary Vascular Resistance PVR >3 Wood units. This was revised down from 25mmHg to improve sensitivity. Furthermore, the initial cutoff of 25mmHg was purely arbitrary.
The cause is often unknown. Risk factors include a family history, prior pulmonary embolism (blood clots in the lungs), HIV/AIDS, sickle cell disease, cocaine use, chronic obstructive pulmonary disease, sleep apnea, living at high altitudes, and problems with the mitral valve. The underlying mechanism typically involves inflammation and subsequent remodeling of the arteries in the lungs. Diagnosis involves first ruling out other potential causes.
There is currently no cure for pulmonary hypertension, although research on a cure is ongoing. Treatment depends on the type of disease. A number of supportive measures such as oxygen therapy, diuretics, and medications to inhibit blood clotting may be used. Medications specifically used to treat pulmonary hypertension include epoprostenol, treprostinil, iloprost, bosentan, ambrisentan, macitentan, and sildenafil. Lung transplantation may be an option in severe cases.
The frequency of occurrence is estimated at 1,000 new cases per year in the United States. Females are more often affected than males. Onset is typically between 20 and 60 years of age. Pulmonary hypertension was identified by Ernst von Romberg in 1891.
