St. Michael’s Cardiac Arrhythmia Service – Special services and research

Cardiac Arrhythmia Service

The electrophysiology laboratory is an area where invasive procedures are performed to diagnose and/or treat various heart rhythm problems. Most patients are admitted to hospital the day of the procedure and are usually discharged the following day.

Patient information

Contact information

For referrals – Telephone: 416-864-5152

Fax: 416-864-5348

  • Referral form (45 kb pdf file)
  • Booking coordinator (Joanna Connell): 416-864-6060 ext. 6526

A variety of cardiac devices can be implanted in or close to the heart to diagnose and treat various heart rhythm problems. This includes pacemakers, implantable defibrillators, and internal loop recorders. Procedures to implant these devices are done in the arrhythmia operating room. Most of these procedures are done through day surgery, such that patients are discharged home the same day of the procedure.

Patient information

Contact information

For referrals – Telephone: 416-864-5152

Fax: 416-864-5348

  • Referral form (45 kb pdf file)
  • Booking coordinator (Emily Little): 416-864-6060 ext. 2679

Patients who have a rhythm problem called atrial fibrillation or atrial flutter may require a shock to the heart in order to restore a normal rhythm. This type of procedure is called a cardioversion and is done as a same day procedure.

Patient information

Contact information

For referrals – Telephone: 416-864-5152

Fax: 416-864-5348

  • Referral form (45 kb pdf file)
  • Booking coordinator (Joanna Connell): 416-864-6060 ext. 6526

When patients are seen by a member of our team, they may be asked to meet with a research coordinator if their condition is one that is actively being studied. Participation in research studies is completely voluntary. All research that is conducted at St. Michael’s Hospital has been fully approved by a special research committee called the Research Ethics Board which helps to ensure that research studies are coordinated in a safe, ethical manner.

There are several research coordinators working in the Cardiac Arrhythmia Service, and they are currently recruiting research studies.

The research team

Marta Gadacz
Telephone: 416-864-5379, pager: 416-685-9198

Zana Mariano
Telephone: 416-864-6060 x 2696, pager: 416-685-9120

Last updated August 10, 2021