Pulmonary hypertension is one of six conditions which results in high blood pressure that is limited to one or more of the blood vessels of the lung gas exchange system. This usually leads to shortness of breath, dizziness, fainting and swelling of the legs. No matter what the underlying cause, the disease is manifested when these blood vessels start to narrow.
Even when the condition is obvious, the patient may require extensive testing to determine the sub-type so that they can be appropriately treated. In most cases, a combination of an electrocardiogram, echocardiogram and a cardiac catheterization is performed.
The prognosis for patients is generally poor, even with treatment. Patients usually succumb to the complications of the disease.