Queen’s University researchers Gianluigi Bisleri (Surgery) and Benedict Glover (Medicine) became the first doctors in Canada to compete a hybrid cardiac ablation procedure. The procedure, which was completed at the Kingston Health Science Centre, is a treatment for patients who suffer from the heart condition atrial fibrillation, an irregular and often rapid heart rate.

The new procedure will help patients heal faster, stop or reduce their use of medication, as well as reduce the number of future hospital visits that they require.

“No other centre or clinician has ever performed this hybrid procedure (combining a closed-chest surgical ablation with a transcatheter mapping) in Canada,” explains Dr. Bisleri. “Furthermore, the use of the Ensite Precision cardiac mapping system makes this procedure even more unique, since maybe only other one centre in the United States may have done this procedure so far.”

Ensite Precision technology provides highly detailed models and maps of the heart: Dr. Glover was the first cardiologist in North America to utilize this technology in late 2016.

"Patients have historically relied on medication along with traditional cardiac ablation procedures to help restore normal heart rhythms. During a traditional ablation procedure, physicians create scars inside the heart which prevent abnormal electrical signals from moving through the heart tissue. This traditional approach is typically performed either by inserting long, flexible tubes with wires into the heart through the patient’s groin or by using more invasive surgical approaches that often require opening the chest and stopping the heart," says Dr. Glover.

With the new procedure, a cardiologist uses digital technology to map the inside of the heart while the surgeon performs ablation on the outside of the heart using another specialized device. This requires only three keyhole incisions to navigate to the heart, removing the need to open a patient’s chest.

“So far, we have performed two cases and we are planning to continue performing two cases per month during the early stages of this newly developed program. We obviously have plans to further expand our volumes in the near future, since a larger majority of patients could benefit from this innovative strategy,” says Dr. Bisleri. “The outcomes have been excellent to date.Both patients underwent the hybrid procedure successfully and without perioperative complications, with a restoration of normal sinus rhythm at almost two months of follow-up.”

According to Dr. Bisleri, this procedure will also help reduce wait times, especially for patients who have received unsuccessful treatments so far.

“We are committed to further expand our understanding of the mechanisms of atrial fibrillation and the effects of ablation on it. We will also analyze the mid-long term outcomes of this patient population, as we envision this procedure has the potential not only to benefit the single patient but the healthcare system overall by reducing the need for repeated hospitalization or the likelihood to develop heart failure in the long term.”