Please note that clinic appointments may be virtual visits. The clinic team will let you know what type of appointment is appropriate for your care. Learn more about virtual visits at UHN »

 What We Do

One out of a hundred babies is born with a malformation of the heart involving the chambers, valves and blood vessels. Almost all of them grow up to become adults thanks to medical and surgical advances, as well as expert care. But most still live with a chronic condition known as adult congenital heart disease (ACHD), which needs ongoing care.

A team of dedicated specialists provides special care for the ongoing survival and quality of life of ACHD patients. Our team is able to diagnose complications and treat them swiftly with open heart surgery, as well as other interventional procedures and comprehensive care. 


The ACHD clinics and program make available comprehensive access to testing, intervention, surgery, psychological care, genetics, reproductive counseling and care, advance care planning and all other aspects of complete and comprehensive life-long care of an ACHD patient.

Types of Care

​​​We provide care for all types of congenital heart defects ranging from the simple to the complex. Most of our patients have undergone more than two surgeries or procedures. Our team has dealt with various long-term complications such as heart rhythm disorders, heart failure, narrowed or leaky valves, high blood pressure in the lungs, liver disease, psychological and social challenges, and advance care issues. Our cardiologists and obstetricians also offer care to women with ACHD before, during and after pregnancy.

How to Prepare

Learn more about what you can expect when you have a clinic appointment.

 Materials and Resources to Help You

​The Patient & Family Education Program at UHN offers valuable resources to help you understand your condition.​

Resources from the Patient & Family Education Program PDF Icon

* These material(s) are also available in other languages.

More information on cardiac and heart health:

Visit our health information section.​​​​​

 Meet Our Team

ACHD Team Photo


Program Director: Erwin Oechslin, MD

Research Director: Candice Silversides, MD

Fellowship Director: Lucy Roche, MD

Director ACHD Surgery: David Barron, MD​


Consulting Cardiologist

  • Gary Webb, MD

Congenital Cardiovascular Surgery

Interventional Cardiology

Congenital Cardiovascular Imaging


Advanced Practice Nurse

  • Barbara Bailey, NP


The Dalglish Family 22q Clinic

  • Anne Bassett, MD
  • Maria Corral, MD


  • David Chitayat, MD
  • Hanna Faghfoury, MD

Heart Failure


​Pulmonary Hypertension​

Reproductive Program​


Clinical Coordinator

  • Suzanne Hemeon, RN, BScN​
  • Megan Thiessen-Bock, RN, BScN
  • Sue Jimeno, APN

Program Coordinator

Rawan Hamad
Phone: 416 340 4871     Fax: 416 340 5014

Contact Information

Patient Referral Inquiry
Phone: 416 340 4800 ext. 6770

Booking Office
Phone: 416 340 5309     Fax: 416 340 4127     Email:

Admin/Fellowship Application Inquiry
Phone: 416 340 4871​​