At UHN, we strive to deliver Compassionate Care & Caring. Learn more about the services and supports that are available to you throughout your journey.
Our UHN programs and services are among the most advanced in the world. We have grouped our physicians,
staff, services and resources into 10 medical programs to meet the needs of our patients and help us make
the most of our resources.
At the heart of everything we do at UHN are our Healthcare Professionals. Refer a patient to one of our 12 medical programs. Learn more about the resources and opportunities available for professional growth.
University Health Network has grown to be one of the largest research and teaching hospital networks in Canada - pioneers in improving the lives of patients. Our long history of health professions education at Toronto General, Toronto Western, Princess Margaret and Toronto Rehab hospitals has consistently advanced the science of education.
University Health Network is a health care and medical research organization in
Toronto, Ontario, Canada. The scope of research and complexity of cases at UHN has made us a national and international
source for discovery, education and patient care.
Being touched by illness affects us in different ways. Many people want to give back to the community
and help others. At UHN, we welcome your contribution and offer different ways you can help so you can find one that suits you.
The Newsroom is the source for media looking for information about UHN or trying to connect with one
of our experts for an interview. It's also the place to find UHN media policies and catch up on our news stories, videos, media releases,
podcasts and more.
This year marks the 25th anniversary of the Peter Munk Cardiac Centre at UHN. In honour of this milestone, the centre has launched a living library with extraordinary stories of discovery, innovation and exceptional patient care. Explore world-first breakthroughs in heart and vascular care, witness life-saving interdisciplinary collaborations, and celebrate the rich history of Canada's leading cardiovascular centre at
Steven Bush was no stranger to heart surgery when he arrived for a consult at the Structural Heart Valve Clinic at UHN's Peter Munk Cardiac Centre in January 2022.
In the years leading up to this visit, Steven had undergone a stenting procedure to clear a blocked artery, a pacemaker implant to regulate heart rhythm and a pacemaker replacement, but he was still plagued by fatigue and an alarmingly slow heart rate.
Steven met with Dr. RJ Cusimano, a cardiovascular surgeon at the Peter Munk Cardiac Centre and holder of the David & Stacey Cynamon Professorship in Cardiovascular Surgery Innovation and Education, who spent over an hour with him reviewing his records.
Both encouraged and surprised by the thorough attention he received during this consultation, Steven learned his problems with heart rate and energy level could likely be solved with an aortic valve replacement through a transcatheter aortic valve implantation, also known as a TAVI.
A TAVI is a cutting-edge, minimally invasive procedure performed on select patients suffering from severe to critical aortic stenosis – a heart valve disease involving the narrowing of the aortic valve.
TAVI procedures replace diseased aortic valves with new, healthy valves. Via a catheter inserted in the leg, the new valve is guided directly inside the one being replaced. Once positioned, the new valve is inflated – pushing the old valve tissue up against the sidewall of the aorta and out of its way – and begins working immediately.
Originally developed as an alternative for patients, often 80 or older, who are too sick or high-risk to survive open-heart surgery, TAVIs are now being conducted on younger, less complex patients as well.
"With outcomes continuing to be as good as they are, patients with low and medium risk are also being assessed for TAVI eligibility," says Rebecca Collier-Doyle, a Clinical Nurse Coordinator at the Peter Munk Cardiac Centre.
Steven, at age 77, turned out to be one of those younger, less-complex patients. After undergoing a series of assessments to ensure his condition would best be treated by a TAVI, he was scheduled to undergo an "awake TAVI" – meaning he would not be put under general anesthetic – in August 2022.