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Primary Pulmonary Hypertension (PPH)
What is primary pulmonary hypertension?
Primary pulmonary hypertension (PPH) is high blood pressure in the lungs. It is also known as idiopathic pulmonary arterial hypertension. It’s a rare lung disorder in which the blood vessels in the lungs narrow and the pressure in the pulmonary artery rises far above normal levels. The pulmonary arteries carry blood from your body to the lungs where carbon dioxide is traded for oxygen.
Pulmonary hypertension is a serious, chronic disease that can lead to heart failure if it’s not treated.
What causes primary pulmonary hypertension?
The cause of primary pulmonary hypertension is unknown. Often, there is no underlying heart or lung disease causing the high blood pressure.
Some forms of pulmonary hypertension are linked to a gene defect that can run in families. Researchers believe this gene mutation makes the blood vessels more sensitive to certain factors and they constrict, or narrow, when exposed to these factors.
What are the symptoms of primary pulmonary hypertension?
The following are the most common symptoms for primary pulmonary hypertension. Symptoms can develop so slowly that you can have it for years without knowing it. However, each person may experience symptoms differently. Symptoms may include:
- Bluish lips and skin
- Chest pain (angina)
- Dry cough
- Extreme tiredness
- Feeling like your heart is fluttering or beating fast or hard (palpitations)
- Racing pulse
- Swelling in the ankles or legs
- Trouble breathing or shortness of breath, especially with activity
- Trouble getting enough air
These symptoms get worse as the disease progresses. More severe symptoms are a sign of more advanced disease. In advanced stages, you may:
- Have symptoms even when resting
- May become bedridden
The symptoms of primary pulmonary hypertension looks like other conditions or medical problems. This condition can be hard to diagnose. Many people ignore symptoms because they think they are simply out of shape. If you or a family member have any of these symptoms, talk with your healthcare provider for a diagnosis.
How is primary pulmonary hypertension diagnosed?
Primary pulmonary hypertension is rarely discovered in a routine medical exam. In its later stages, the signs of the disease can be confused with other conditions affecting the heart and lungs.
It may be diagnosed when other diseases are ruled out. Tests may include:
- Chest X-ray. A test that takes pictures of internal tissues, including the heart.
- ECG. This test records the strength and timing of the electrical activity of the heart. It shows abnormal rhythms and can sometimes detect heart muscle damage. Small sensors are taped to your skin to pick up the electrical activity.
- Echocardiogram. This test uses sound waves to check the heart’s chambers and valves. The echo sound waves create a picture on a screen as an ultrasound transducer is passed over the skin over the heart. Echo can show damage and enlargement of the heart.
- Pulmonary function tests. These are diagnostic tests that help to measure the lungs’ ability to move air into and out of the lungs. The tests are usually done with special machines you breathe into.
- Perfusion lung scan. A type of nuclear radiology test in which a small amount of a radioactive substance is used to help find changes in the arteries leading to the lungs and blood flow within the lungs. This scan can also be used to check the function of the lungs.
- Cardiac catheterization of the right side of the heart. In this procedure, the doctor passes a hollow tube through a large catheter in the vein. He threads the tube through the right side of the heart and into the pulmonary artery. This is the only test that directly measures the pressure inside the pulmonary arteries.
- Blood tests. These can be used to check the oxygen levels in the blood, evaluate liver and kidney function, and look for other diseases. Certain blood tests can also help to check strain on the heart.
How is primary pulmonary hypertension treated?
There is no cure for primary pulmonary hypertension. Treatment tries to manage symptoms and may include one or more of the following:
- Anticoagulants. These are blood thinners used to make the blood less likely to clot and help it flow more freely.
- Diuretics. Called ‘water” pills, these are used to decrease the amount of fluid in the body. They help reduce swelling and the amount of work the heart has to do.
- Calcium channel blocking/vasodilator drugs. These are used to improve the heart’s ability to pump blood.
- Pulmonary artery specific therapy. This type of medicine targets the pulmonary arteries and tries to decrease the pressure of the blood flow through these arteries. These medicines include ambrisentan, sildenafil, and epoprostenol.
- Other drugs. These are used to help lower blood pressure in the lungs and help the heart beat stronger and pump more blood.
Some people also need supplemental oxygen delivered through nasal prongs or a mask if breathing becomes difficult.
Lung or heart-lung transplant
This may be a choice for people with severe disease.
The condition can be made worse by a number of factors. You can do certain things that will help you stay as healthy as possible. To maintain a healthy lifestyle with primary pulmonary hypertension:
- Don’t smoke.
- Try to avoid high altitudes and travel in nonpressurized airplane cabins. Consider using supplemental oxygen during air travel.
- Before starting an exercise program, ask your healthcare provider about the type and amount of physical activity that is safe for you.
- Don’t participate in activities that can lead to dangerous symptoms, such as chest pain or dizziness.
- Be careful when using both prescription and over-the-counter medicines. Ask your physician or pharmacist which medicines are safe for a person with primary pulmonary hypertension.
- Pregnancy and childbirth can pose serious dangers to a women with this condition. Talk with your healthcare provider if you are considering pregnancy.
- Consider getting a pneumococcal pneumonia vaccine and yearly flu vaccines. Flu and pneumonia can be very dangerous for people with this condition.
Key points about pulmonary hypertension
- Primary pulmonary hypertension (PPH) is a rare lung disorder that causes high blood pressure in the lungs.
- The cause of it is unknown.
- Symptoms can develop so slowly that you can have the condition for years without knowing it. And symptoms get worse as the disease progresses.
- There is no cure for the condition. Treatment is aimed at managing symptoms.
Tips to help you get the most from a visit to your healthcare provider:
- Know the reason for your visit and what you want to happen.
- Before your visit, write down questions you want answered.
- Bring someone with you to help you ask questions and remember what your healthcare provider tells you.
- At the visit, write down the name of a new diagnosis, and any new medicines, treatments, or tests. Also write down any new instructions your healthcare provider gives you.
- Know why a new medicine or treatment is prescribed, and how it will help you. Also know what the side effects are.
- Ask if your condition can be treated in other ways.
- Know why a test or procedure is recommended and what the results could mean.
- Know what to expect if you do not take the medicine or have the test or procedure.
- If you have a follow-up appointment, write down the date, time, and purpose for that visit.
- Know how you can contact your healthcare provider if you have questions.
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