About the Heritable Arrhythmia Clinic

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​​​​​​​​​​​ Toro​​nto General Hospital | map icon Maps & Directions
 Norman Urquhart (NU) Building - 5th Floor, in the Ambulatory  Cardiac Clinic
​Clinic Directions​

Contact information

​​​​​Phone: ​416 340 4800 ext. 3535
Fax: 647 693 7543

What We Do

We focus on the diagnosis and management of inherited heart rhythm disorders. Heritable heart rhythm disorders can lead to abnormal heart rhythms, loss of consciousness or sudden death when there's an absence of obvious disease or symptoms. Our patients get referred from family physicians, emergency rooms, specialists and the General Arrhythmia Clinic.

We also see family members of affected individuals for counseling and screening, as well as people with syncope when they have physical or emotional stress, those with a suspected heritable arrhythmia disorder and those who have unusual results for an ECG. 

Our patients undergo comprehensive medical evaluation by Dr. Danna Spears, a cardiac electrophysiologist with specific training and expertise in this field.  They also get counselling and testing by a genetics counsellor and clinical geneticist. A number of tests are done, such as electrocardiography, exercise stress electrocardiography, echocardiography, and an MRI.

  Conditions Evaluated and Managed at the clinic

  • Arrhythmogenic Right Ventricular Cardiomyopathy
  • Brugada Syndrome​​
  • Catecholaminergic Polymorphic Ventricular Tachycardia​
  • Hypertrophic Cardiomyop​​athy
  • Idiopathic Ventricular Fibrillation
  • Long QT Syndrome