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Read MoreUnderstanding Eisenmenger Syndrome: Causes, Symptoms, and Treatment Options
Medically reviewed by Jerome Albert Ecker | MD, Assistant Professor of Medicine, Duke University - Durham, NC on February 16th, 2024.
Key Takeaways
- This rare condition occurs when untreated septal defects or patent ductus arteriosus cause blood flow reversal, leading to pulmonary vascular resistance that eventually exceeds systemic pressure.
- Cyanosis (blue discoloration) and digital clubbing typically develop before age 20, followed by decreased exercise tolerance and hemoptysis as oxygen saturation drops below 85%.
- Life expectancy averages 30-50 years depending on underlying defect severity, with sudden cardiac death being the leading cause of mortality in 25-30% of patients.
- Targeted pulmonary vasodilators like bosentan or sildenafil can improve functional capacity by one WHO class level, while phlebotomy may be needed when hematocrit exceeds 65%.
- Pregnancy carries 30-50% maternal mortality risk due to hemodynamic stress, making effective contraception and genetic counseling essential for women of reproductive age.
Eisenmenger syndrome is a rare heart condition that occurs due to a congenital heart defect present at birth. This defect affects the way blood flows through the heart, leading to a lack of oxygen in the body. People with Eisenmenger syndrome have a higher risk of heart failure, stroke, and premature death.
Causes of Eisenmenger Syndrome
Eisenmenger syndrome develops when a hole exists between the heart's chambers, usually between the left and right ventricles. This hole allows oxygen-rich blood to flow back into the lungs instead of being pumped out to the body. As a result, blood pressure in the lungs increases, causing pulmonary hypertension. If left untreated, this condition can lead to heart failure.
Symptoms of Eisenmenger Syndrome
Symptoms of Eisenmenger syndrome typically appear before puberty, but in some cases, they may be noticed during infancy or early childhood. The most common symptoms include:
Bluish skin color (cyanosis) due to lack of oxygen
Clubbing of fingertips and toes
Shortness of breath
Fluid buildup in the body (edema)
Abnormal heart rhythm
Dizziness or headaches
Chest pain
Joint swelling (gout)
Fatigue and weakness
Polycythemia (high red blood cell count)
Eisenmenger syndrome can also affect the body's production of red blood cells and platelets, leading to abnormal blood clotting or excessive bleeding.
Diagnosing Eisenmenger Syndrome
If Eisenmenger syndrome is suspected, a specialist in heart problems may be consulted. The specialist will look for signs of cyanosis, an improper opening between heart chambers (cardiac shunt), and pulmonary hypertension that does not respond to medication. Several tests may be performed to confirm the diagnosis, including:
Imaging tests (X-rays, CT scans, or echocardiograms)
Electrocardiogram (EKG or ECG) or walking test
Blood tests to check red blood cell counts
Cardiac catheterization for detailed heart information
Lung function tests to measure oxygen levels in the bloodstream
Treatment Options for Eisenmenger Syndrome
Treatment for Eisenmenger syndrome focuses on lowering blood pressure in the lungs and improving oxygen levels in the body. This can be achieved through various methods, including medication and, in severe cases, surgery. Common treatments include:
Medications to relax arteries, regulate heart rhythm, prevent infections, and prevent blood clots
Iron supplements
Blood removal to reduce excess red blood cells
Heart-lung transplant in severe cases
Living with Eisenmenger Syndrome
People with Eisenmenger syndrome have a shorter life expectancy and a higher risk of sudden death compared to the general population. Most individuals with this condition die between their 20s and 50s, but with proper management, some may live into their 60s. To improve quality of life and manage the condition, patients should follow their treatment plan and make lifestyle changes, such as avoiding high altitudes, dehydration, and strenuous sports. A low-salt diet, refraining from smoking, and staying up-to-date with vaccinations are also essential.
Eisenmenger syndrome can be emotionally challenging for patients and their loved ones. Support groups and resources are available to help cope with the difficulties associated with this condition. Consult with your doctor to learn more about managing Eisenmenger syndrome and improving your quality of life.
For more information on Eisenmenger syndrome and other congenital heart defects, visit:
The Bottom Line
Once this irreversible condition develops, management focuses on symptom control and preventing complications rather than cure, as the underlying pulmonary vascular changes cannot be reversed. Early recognition of congenital heart defects and surgical repair before pulmonary hypertension develops is the only way to prevent this syndrome. If you're experiencing unexplained cyanosis or exercise intolerance with a history of heart murmur, Doctronic can help evaluate your symptoms promptly.
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