# Treatment Options for Congenital Heart Defects in Adulthood
Treatment of congenital heart defects in adults is highly individual. It depends on the type of defect, its severity, how well the heart is functioning, and whether procedures have been performed in the past. Many adults with a congenital heart defect have already undergone one or more operations in childhood. Others discover their defect only later in life. Treatment aims to relieve symptoms, prevent heart rhythm disorders, combat infections, and where necessary, improve heart function.
Medications
Medications for Heart Failure
ProveniIncluded in official guidelines, or approved by EMA or FDA
In adults with a congenital heart defect who develop heart failure, medications are used to reduce the strain on the heart. ACE inhibitors and similar medications help relax blood vessels, so the heart doesn't have to pump as hard. Beta-blockers slow the heart rate and give the heart more rest. These medications are standard and are included in international guidelines.
Side effects may occur during use, such as fatigue, low blood pressure, or dizziness. These usually decrease as the body adjusts. Regular check-ups are needed to ensure the heart is responding well to the medication.
Medications for Heart Rhythm Disorders
ProveniIncluded in official guidelines, or approved by EMA or FDA
Many adults with congenital heart defects develop heart rhythm disorders. For this, medications are prescribed that regulate the electrical activity of the heart. These medications can have side effects, such as dizziness, fatigue, or even new rhythm disorders. Therefore, they are regularly monitored to see how well they work.
Medications to Prevent Blood Clots
ProveniIncluded in official guidelines, or approved by EMA or FDA
Some congenital heart defects increase the risk of blood clots. This is especially true for defects where oxygen-poor and oxygen-rich blood mix (a 'shunt'). Blood thinners can reduce this risk. They increase the risk of bleeding, so caution with wounds and fall risk is important.
Medications to Prevent Infections
ProveniIncluded in official guidelines, or approved by EMA or FDA
Adults with certain congenital heart defects, especially unrepaired defects or artificial heart valves, have an increased risk of infections of the heart tissue (endocarditis). For certain medical procedures, dental work, or surgery, antibiotics are sometimes prescribed for prevention. This protects against germs that can enter the bloodstream.
Catheter Procedures (Minimally Invasive Treatment)
Closing Holes (PFO, ASD, VSD)
ProveniIncluded in official guidelines, or approved by EMA or FDA
Many congenital heart defects consist of holes between the heart chambers or heart walls. In some adults, a catheter procedure can close this hole without open heart surgery. Through a thin tube (catheter), usually inserted via the groin, a closure device (often a small umbrella-like device) is placed in the heart. This requires one day of hospitalization and can prevent serious complications, especially in PFO-related strokes.
Risks are minimal, but include bleeding, infections, or (very rarely) damage to blood vessels. Some closure devices may need to be checked again years later.
Placement of Artificial Valves via Catheter
ProveniIncluded in official guidelines, or approved by EMA or FDA
In adults with congenital heart valve defects, an artificial valve can be placed via catheter, without major surgery. This is done especially for pulmonary valve problems (in the case of repaired Tetralogy of Fallot). This is called percutaneous pulmonary valve replacement.
Advantage: shorter recovery and fewer scars than open surgery. Risks include bleeding, infection, or the valve not staying in place properly. Artificial valves must be replaced again after a few years.
Widening of Narrowed Vessels
ProveniIncluded in official guidelines, or approved by EMA or FDA
Some congenital heart defects are accompanied by narrowed arteries. Via catheter, small balloons or stents (small tubes) can be placed to improve blood flow. This can relieve symptoms such as shortness of breath.
Side effects are rare, but include bleeding, contrast agent reactions, or restenosis of the vessel.
Major surgical intervention
Repair of heart defects
ProveniIncluded in official guidelines, or approved by EMA or FDA
Adults with certain uncorrected defects, especially if heart failure worsens, may benefit from surgical repair or adjustment. This is a larger procedure than catheter-based interventions and requires longer hospitalization and recovery time. Examples include repair of valve defects, insertion of auxiliary splitters, or reorganization of heart chambers.
Risks are general surgical risks: infection, bleeding, arrhythmias, and cardiac arrest. Regular follow-up is needed after surgery.
Heart transplantation
ProveniIncluded in official guidelines, or approved by EMA or FDA
In some adults with very severe, non-repairable congenital heart defects and progressive heart failure, heart transplantation may be considered. This is the most invasive option and requires specialized centers.
After transplantation, immunosuppressive medications must be taken for life to prevent rejection. This carries infection risk and other side effects. However, quality of life often improves significantly. The long term remains challenging.
Rhythm therapy
Implantable cardioverter-defibrillators (ICD)
ProveniIncluded in official guidelines, or approved by EMA or FDA
Adults with congenital heart defects who have serious arrhythmias or are at risk for them (e.g., repaired Tetralogy of Fallot) may receive an ICD. This is a small device placed under the collarbone that detects serious arrhythmias and automatically delivers a shock to restore normal heart rhythm.
Implantation is performed under local anesthesia. Side effects include infection, wire displacement, or inappropriate shocks. Regular monitoring is essential.
Pacemakers
ProveniIncluded in official guidelines, or approved by EMA or FDA
Some adults with congenital heart defects develop an abnormally slow heart rate. A pacemaker is a small device that delivers electrical impulses to maintain heart rate. This improves symptoms such as fatigue and shortness of breath.
Implantation is simpler than many other procedures. Side effects are infections or, in rare cases, blood vessel damage.
Diagnostics and monitoring
Advanced imaging
ProveniIncluded in official guidelines, or approved by EMA or FDA
Regular check-ups with echocardiography (heart ultrasound) are standard and help monitor how well the heart is working. For complex defects, CT scans or MRI are also used for detailed images. These are repeated to detect changes over time.
These tests are safe and non-invasive, although MRI is not always possible in patients with certain implants.
Cardiac biomarker monitoring
ProveniIncluded in official guidelines, or approved by EMA or FDA
Blood tests can measure substances that indicate how hard the heart is working (e.g., NT-proBNP). These help doctors assess whether medications are working well or whether heart failure is progressing. These tests are simple and provide valuable information.
Supportive care
Cardiac rehabilitation and exercise
ResearchediPositive results in clinical studies, not yet standard treatment
Guided exercise programs under supervision (cardiac rehabilitation) can improve quality of life and heart function. Recent research is exploring online and app-guided programs, which improves access, especially for adults far from specialized centers.
Side effects of supervised exercise are minimal; the risk of overexertion is carefully monitored.
Psychological support
ResearchediPositive results in clinical studies, not yet standard treatment
Adults with congenital heart defects often experience heart-related anxiety or health anxiety. Cognitive-behavioral therapy (psychological support focused on thoughts and behavior) helps some manage these fears better, allowing them to do more in daily life.
This is safe and helps improve mental well-being.
Care via telehealth
ResearchediPositive results in clinical studies, not yet standard treatment
For adults with congenital heart defects, especially those far from specialized cardiac centers, the use of telehealth (consultations via video call) or hybrid care is growing. This facilitates regular follow-up and answers to questions.
This approach is increasingly used and studied, particularly to make access more equitable.
Experimental and supportive directions
New catheter innovations
ExperimentaliOngoing in study setting, outcome still unknown
Research is ongoing into better closure devices and catheter placement methods, for example for more complex defects or irregular heart abnormalities. Artificial valve lining with cells (bioprotetic innovations) is also receiving attention.
These are still in experimental stage and are not standard available.
Bioelectric monitoring
ResearchediPositive results in clinical studies, not yet standard treatment
Techniques with bioelectric impedance (measurement of conductivity in tissues) are being investigated as a tool to assess heart health. This would help detect early warning signals of heart failure.
This is still in research phase.
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_This information never replaces a doctor's judgment. Always discuss your situation with your own healthcare provider._