PAH / PH is diagnosed by
- Lung X-ray
The most important screening tests or examination in order to diagnose pulmonary hypertension is echocardiography. Using this method, pulmonary artery pressure is determined indirectly.
Evaluating echocardiography results, a careful analysis of right heart structures, tricuspid regurgitation velocity and right ventricular systolic pressure that echocardiography experts often specify with the RVSP letters, should be made. If RVSP is greater than 35 mm / Hg then it is important to establish the cause of right ventricular systolic pressure rise. Right ventricular systolic pressure correlates with pulmonary arterial pressure.
If pulmonary hypertension is detected by echocardiography, most common causes must be excluded – left heart systolic or diastolic dysfunction, valve problems, lung disease, thromboemboly.
If a patient has the disease or has a disease that causes pulmonary arterial hypertension, 1 group or pulmonary arterial hypertension diagnosis may be established. In such cases cardiac sensing has to be done.
- Right heart catheterisation or probingDuring sounding the pulmonary artery pressure is measured directly. If needed, pathogenetical therapy is administered.
- Computer tomography
- Lung mechanical function is evaluated using spirography. Using this method it is possible to determine both the static lung parameters such as vital capacity, and dynamic performance – forced vital capacity, forced expiratory volume in one second.
- BNP levels in the blood
- 6-minute walk test
All of these investigations and the outcome of a comprehensive analysis can be made in Latvian Centre of Cardiology at Pauls Stradins Clinical University Hospital.