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.
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.
Our 10 medical programs are spread across eight hospital sites – Princess Margaret, Toronto General, Toronto Rehab’s five sites, Toronto Western – as well as our education programs through the Michener Institute of Education at UHN. Learn more about the services, programs and amenities offered at each location.
Maps & Directions
Find out how to get to and around our nine locations — floor plans, parking, public transit, accessibility services, and shuttle information.
Ways You Can Help
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.
For the first time in North America, sonic pressure waves have been used to help treat patients with advanced cardiovascular disease.
This technology, also referred to as intravascular lithotripsy, or IVL, is a similar approach to how physicians tackle and treat kidney stones, which are made up of calcium.
In the heart, calcium can be similarly problematic, where it can form in an arterial plaque blockage, creating chaos for minimally invasive angioplasty procedures: it can impair or even prevent stent expansion.
IVL, used for the first time in North America during an interventional cardiology procedure at UHN's Peter Munk Cardiac Centre (PMCC), breaks up calcium that has formed in the blockage, allowing for proper stent placement and blood flow.
The surgery to perform this novel procedure took place in November, where PMCC's Dr. Vlad Dzavik successfully used the IVL to dilate the calcified artery using minimal pressure with the angioplasty balloons, and then deliver and expand stents.
'Very encouraged' by the results
Towards the end of the procedure, the patient had increased diameter in three of his most important coronary arteries – often a sign of good outcomes.
"I'm extremely pleased with both the patient's outcomes and progress following this procedure, and am very encouraged by his results," said Dr. Dzavik.
"I'm incredibly hopeful that we can continue using this therapy on other patients."
Rob Fletcher, Vice-President of Marketing for Shockwave Medical Inc., the company that pioneered the treatment, said calcium "is the single most important predictor of poorer outcomes."
"This technology seeks to minimize trauma within the artery by delivering pulsatile sonic pressure waves locally to fracture calcium in the artery wall but pass through surrounding soft vascular tissue in a safe manner," he said.
There is no similar technology available currently in interventional cardiology, where heavily calcified arteries have traditionally been treated by high-pressure balloon angioplasty or an atherectomy, which is often likened to a high-speed sander inside the artery.
"These treatments, which can be difficult to perform, only address the burden of inner most layer of calcium with varying degrees of success and result in an increased risk for adverse events since these techniques don't differentiate between the calcific lesion and soft intimal tissue," Rob said.