Concierge Cardiology of Montana
adult congenital heart diseaes

Adult Congenital Heart Disease

Adult Congenital Heart Disease Care in Montana & Wyoming

Lifelong, Coordinated Congenital Heart Care in Billings, MT

More than 90% of children born with congenital heart disease now survive into adulthood. As a result, adults with congenital heart disease (ACHD) represent one of the fastest-growing populations in cardiology.

Survival does not mean cure.

Even after successful childhood surgery, congenital heart disease requires lifelong monitoring, imaging, arrhythmia surveillance, and risk management.

At Concierge Cardiology of Montana, we provide structured, relationship-based adult congenital heart disease care — with seamless transition from pediatric cardiology and coordination with specialized ACHD centers when needed.

adult congenital heart disease

What Is Adult Congenital Heart Disease (ACHD)?

Adult congenital heart disease refers to structural heart defects present at birth that persist into adulthood — whether repaired, palliated, or unrepaired.

Common ACHD diagnoses include:

  • Repaired tetralogy of Fallot
  • Atrial septal defect (ASD)
  • Ventricular septal defect (VSD)
  • Coarctation of the aorta
  • Bicuspid aortic valve
  • Ebstein anomaly
  • Transposition of the great arteries
  • Single ventricle physiology
  • Fontan circulation
  • Eisenmenger syndrome

Even “simple” congenital defects require lifelong surveillance.

Why Lifelong Follow-Up Is Essential

Many adults assume:

“I had surgery as a child. I’m fixed.”

In reality, long-term risks may include:

  • Progressive valve dysfunction
  • Ventricular enlargement
  • Arrhythmias
  • Pulmonary hypertension
  • Aortic dilation
  • Conduit degeneration
  • Heart failure
  • Thromboembolic risk

Loss to follow-up is associated with higher complication rates and more urgent interventions later in life.

Proactive surveillance prevents crisis-based care.

Common Adult Complications in Congenital Heart Disease

Arrhythmias

Arrhythmias are among the most frequent ACHD complications.

These may include:

  • Atrial flutter
  • Atrial fibrillation
  • Sinus node dysfunction
  • AV block
  • Ventricular tachycardia

Scar-related circuits and altered anatomy require specialized planning. When needed, we coordinate electrophysiology procedures with congenital-experienced EP specialists.

Learn more about our Arrhythmia & Heart Rhythm Evaluation services.

Heart Failure in ACHD

Heart failure in adult congenital patients differs from traditional ischemic heart failure.

It may involve:

  • Systemic right ventricle
  • Single ventricle physiology
  • Fontan-associated circulatory failure
  • Chronic pulmonary regurgitation

Early recognition allows for:

  • Valve replacement
  • Catheter-based interventions
  • Medical optimization
  • Advanced heart failure referral when appropriate

Aortic Disease

Patients with:

  • Bicuspid aortic valve
  • Coarctation of the aorta
  • Conotruncal defects

Require serial imaging for:

  • Aortic dilation
  • Aneurysm risk
  • Dissection prevention

Pulmonary Hypertension & Eisenmenger Syndrome

Unrepaired or late-repaired shunts may lead to progressive pulmonary vascular disease requiring specialized management and careful monitoring.

Imaging in Adult Congenital Heart Disease

ACHD imaging requires congenital-specific interpretation due to altered anatomy.

Imaging may include:

  • Transthoracic echocardiography
  • Transesophageal echocardiography
  • Cardiac MRI
  • Cardiac CT
  • Cardiopulmonary exercise testing (CPET)

When advanced imaging is needed, we coordinate congenital-focused protocols and interpretation.

Cardiac Catheterization & Interventions

Adult congenital patients may require:

  • Hemodynamic assessment
  • Shunt evaluation
  • Pulmonary vascular resistance measurement
  • Conduit or valve interventions
  • Device closures
  • Pulmonary valve replacement

ACHD catheterization differs significantly from routine adult coronary angiography. When indicated, we coordinate care with experienced congenital interventional teams.

Pregnancy & Adult Congenital Heart Disease

Pregnancy risk varies widely depending on anatomy and physiology.

Preconception counseling is essential for patients with:

  • Ventricular dysfunction
  • Cyanosis
  • Pulmonary hypertension
  • Aortic dilation
  • Mechanical valves

We coordinate care with maternal-fetal medicine and high-risk obstetrics when appropriate.

For patients transitioning from pediatric care, visit our
Congenital Heart Disease Care in Montana & Wyoming page for earlier-stage guidance.

Transition From Pediatric to Adult Congenital Care

The transition from adolescence to adulthood is a high-risk period for loss to follow-up.

Our structured transition process includes:

  • Education beginning in adolescence
  • Clear explanation of diagnosis and surgical history
  • Written medical summaries
  • Readiness-based transition planning
  • Coordination with ACHD specialists when indicated

We assess readiness individually — not by age alone.

Lifelong Care Pathways

Patients may choose one of two models:

1️⃣ Transition to a Dedicated ACHD Center

When complexity warrants, we:

  • Provide comprehensive medical summaries
  • Coordinate referral to ACHD centers
  • Transfer imaging and surgical records
  • Maintain collaborative communication

2️⃣ Continue Care Within Our Concierge Model

Many adults prefer continuity in a relationship-based model.

In these cases, we:

  • Provide congenital-focused surveillance
  • Coordinate advanced imaging and interventions
  • Integrate preventive cardiology
  • Collaborate with adult subspecialists as needed

This hybrid approach minimizes unnecessary travel while maintaining high-level congenital oversight.

Preventive Cardiology in ACHD

As congenital patients age, acquired cardiovascular risk factors develop:

  • Hypertension
  • Hyperlipidemia
  • Diabetes
  • Coronary artery disease

Preventive cardiology becomes critical.

Learn more about our
Preventive Cardiology in Billings, MT services.

Exercise & Lifestyle in ACHD

Most adults with congenital heart disease benefit from regular, guided physical activity.

We provide:

  • Individualized exercise recommendations
  • CPET-guided intensity counseling
  • Sports participation guidance
  • Lifestyle risk optimization

Restrictions are anatomy-specific — not universal.

Who Should Seek Adult Congenital Heart Disease Care?

You should schedule congenital-focused follow-up if you have:

  • History of congenital heart surgery
  • Tetralogy of Fallot
  • Coarctation of the aorta
  • Bicuspid aortic valve with dilation
  • Fontan circulation
  • Transposition of the great arteries
  • Pulmonary hypertension
  • Childhood heart defect with limited documentation

Even if you feel well.

Adult Congenital Heart Disease Care in Billings, MT

Concierge Cardiology of Montana serves patients throughout:

  • Billings, MT
  • Surrounding Montana communities
  • Northern Wyoming

Location:
1429 38th St W, Ste 2
Billings, MT 59102

Phone: 406‑272‑2376

Schedule online directly — no referral required.

Lifelong, Coordinated Congenital Heart Care

Adult congenital heart disease requires:

  • Structured surveillance
  • Congenital-specific expertise
  • Arrhythmia monitoring
  • Advanced imaging
  • Pregnancy counseling
  • Preventive cardiology integration
  • Coordinated intervention planning

Our mission is to ensure no congenital heart patient is lost to follow-up.

Lifelong care.
Collaborative oversight.
Expert guidance at every stage.

Check our YouTube Channel for more informational videos and our blog for more heart topics.