Pulmonary Hypertension: Symptoms, Causes, and Treatment Options Explained
Pulmonary hypertension is a condition with high blood pressure in the arteries of the lungs.
PH causes symptoms like shortness of breath, fatigue, chest pain, and swelling in the legs.
Causes include heart disease, lung disorders, or genetic conditions.
Treatment options include medications like vasodilators, oxygen therapy, and, in severe cases, surgery.
Pulmonary hypertension is a serious condition that can impact heart and lung function if left untreated.
In this article, discover what causes it, how it’s diagnosed, and the most effective treatment approaches to help manage symptoms and improve quality of life.
What is Pulmonary Hypertension?
Pulmonary Hypertension is high blood pressure in the lung arteries and the heart’s right side.
Pulmonary arterial Hypertension (PAH) is one form of this condition.
In PAH, lung blood vessels narrow, clog, or get destroyed.
This damage slows blood flow through the lungs, and increased lung pressure makes the heart work harder.
Over time, the heart weakens and may fail.
PH can worsen gradually and become life-threatening.
There’s no cure, but treatments can improve life quality.
Treatment may reduce risks, ease symptoms, and extend life.
What are the Symptoms of Pulmonary Hypertension?
It is a progressive disease, and symptoms of Pulmonary Hypertension may develop slowly.
It may take months or even years to show noticeable symptoms.
In certain situations, these symptoms may flare up as:
- Chest pain or pressure
- At first, shortness of breath may appear while exercising and eventually at rest.
- Low oxygen levels cause your skin to be blue or grey. Due to different skin colour, these changes can be difficult to notice in some people.
- Fatigue
- Dizziness or fainting
- Swelling in the ankles, legs, and belly area
- Fast pulse or pounding heartbeat
One of the most common symptoms that people experience in PH is shortness of breath.
However, this symptom can also appear in conditions like asthma.
So, it would be best to discuss this with a healthcare professional to have an accurate diagnosis.
What are the Causes of Pulmonary Hypertension?
The heart has four chambers—two upper and two lower.
The lower right chamber pumps blood to the lungs.
Blood flows through a large vessel called the pulmonary artery.
Changes in lung artery cells can affect blood flow.
Artery walls may become narrow, stiff, swollen, or thick.
These changes can restrict or block lung blood flow.
Reduced flow can lead to Pulmonary Hypertension.
Pulmonary Hypertension is classified into five types based on cause.
We have listed them below.
What are the Different Types of Pulmonary Hypertension?
Based on the causes, the World Health Organization (WHO) has divided Pulmonary Hypertension into five groups.
Group 1: PH due to pulmonary arterial Hypertension (PAH):
PAH may have many different causes, including underlying diseases and the use of certain drugs.
Under this condition, the pulmonary arteries become narrow, stiff, swollen, and thick.
It may result in less blood flow and raised pressure in the pulmonary arteries.
Group 2: PH due to left-sided heart disease:
It is among the most common forms of pulmonary Hypertension that appears in people.
The causes of this condition include failure of the left heart and left-sided heart valves.
It happens when there is a problem on this side of your heart; it affects the right side of the heart and the entire pulmonary circuit.
As a result, blood backs up in the heart, and the pressure rises in the pulmonary arteries.
Group 3: PH due to lung disease:
Due to certain lung diseases, the arteries in your lungs can get tightened.
Thus, it may lead to less blood flow through your lungs and a rise in the pressure in your pulmonary arteries.
Conditions like pulmonary fibrosis, sleep apnea, or COPD may show underlying lung issues.
Group 4: PH due to blockages in your lungs:
Blockage in your lungs due to blood clots or scars prevents blood from flowing normally through the lungs.
It may put the right side of the heart under more stress and raise pulmonary blood pressure.
Also, tumours may block the pulmonary arteries in this condition.
Group 5: PH due to other disorders:
PH, along with other health conditions like metabolic disorders and blood disorders.
The reason behind the triggering of PH under this condition is not exactly apparent.
What are the Risk factors leading to Pulmonary Hypertension?
Pulmonary Hypertension can affect adults of any age, but it’s more common between the ages of 30 and 60.
It often develops in people with heart or lung conditions.
Age, other medical issues, and certain types, like PAH, can increase the risk, especially in younger adults.
The risk factors that may lead to conditions like Pulmonary Hypertension include:
- A family history of the same condition
- Smoking
- Being overweight
- Living at a high altitude
- Having a blood-clotting disorder or a family history of the condition of blood clots in the lungs
- Exposure to asbestos
- A heart condition that you're born with (A congenital heart defect)
- Using certain drugs, including cocaine, methamphetamine, or some weight-loss medicines.
What are the Complications Related to Pulmonary Hypertension?
These are some complications that one may face while suffering from Pulmonary Hypertension:
Enlargement of the Right-sided heart and heart failure:
Also called cor pulmonale, this condition causes the right lower heart chamber to enlarge.
It occurs when the heart struggles to pump blood through narrowed lung arteries.
The chamber stretches and thickens, increasing strain and risking right-sided heart failure.
Irregular heartbeats:
Pulmonary Hypertension can cause arrhythmias by disrupting the normal heart rhythm.
This condition can also be life-threatening.
Blood clots:
PH may increase the risk of blood clots in the small arteries of the lungs.
Bleeding in the lungs:
Pulmonary Hypertension may cause bleeding into the lungs and coughing up blood.
Pregnancy complications:
Having a Pulmonary hypertension problem can be life-threatening for the mother and the developing baby in a pregnancy.
What are the treatments for Pulmonary Hypertension?
Pulmonary Hypertension (PH) treatment depends on your type of PH and other medical conditions.
A healthcare professional team will suggest a suitable treatment for your individual needs.
Only two types of pulmonary Hypertension (PH) can be treated directly. They include:
- Pulmonary artery hypertension (PAH).
- Chronic thromboembolic pulmonary Hypertension (CTEPH).
Treatment for other types of Pulmonary Hypertension includes managing the underlying medical conditions.
Treatment for pulmonary arterial Hypertension (PAH) is:
- Calcium channel blockers
- Oxygen therapy
- Diuretics
- Pulmonary vasodilators
Treatment for Chronic thromboembolic pulmonary Hypertension (CTEPH) includes:
- Anticoagulants
- Balloon atrial septostomy (BAS)
- Balloon pulmonary angioplasty (BPA)
- Medication like soluble guanylate cyclase stimulator (SGCS)
- Pulmonary endarterectomy (PEA).
Treatment for PH caused by heart or lung disorders focuses on managing the underlying condition.
Approaches vary based on individual health needs and severity.
A healthcare provider will recommend a personalized plan:
- Dietary changes
- Oxygen therapy
- Lifestyle changes.
- Medication to manage conditions like Hypertension or heart failure.
- Surgery, such as repairing heart valves.
The treatment of Group 5: PH caused by other medical conditions is still evolving.
Your healthcare professional may help determine the best care plan in this situation.
The last option for a severe condition in PH includes a lung transplant.
Final lines:
Pulmonary Hypertension (PH) involves high blood pressure in the lung arteries and the right side of the heart.
Understanding its types, like pulmonary arterial Hypertension (PAH), helps guide treatment.
Options include medication, lifestyle changes, or surgery.
Early diagnosis, risk awareness, and expert care are key to managing PH effectively.
The main cause of PH is left-sided heart disease, especially heart failure. Other contributing factors include chronic lung diseases like COPD, interstitial lung disease, blood disorders, and liver disease. These conditions increase pressure in the lung arteries, leading to pulmonary hypertension.
PH Treatment includes vasodilators and medications that relax lung vessels and improve blood flow. Common vasodilators include epoprostenol, treprostinil, iloprost, and selexipag. However, Treatment depends on the type and severity of pulmonary hypertension.
Yes, some ED medications like sildenafil and tadalafil are used to treat pulmonary hypertension. ED drugs help relax and widen blood vessels in the lungs, improving blood flow and reducing pressure. These drugs can ease symptoms and improve exercise capacity in certain patients.
Pulmonary hypertension has no cure and usually worsens over time. Treatment can help manage symptoms like slow progression and improve quality of life. If untreated, it can lead to heart failure and become life-threatening. However, Early diagnosis and treatment are essential to managing the condition effectively.