William J. Wallen, MD, PhD
- Congenital Cardiac Surgeon, Division of Cardiothoracic Surgery
- Assistant Professor, UC Department of Surgery
About
Biography
I’m a congenital cardiac surgeon dedicated to caring for children with heart conditions. My journey into medicine started early, inspired by my mother, who was a registered nurse. I loved hearing her stories about her patients and the difference she made in their lives. While I initially set out to become a cardiac surgeon, it was my first experience in congenital cardiac surgery during my training at Toronto’s Sick Kids Hospital that truly shaped my career path. Working with children and their families quickly became my passion.
I believe that even though many of my patients are young, it’s important to involve them in their care as much as possible. I listen closely to both children and their parents, working together as a team to make the best decisions for each child’s unique needs. My background includes a PhD in cardiovascular physiology, which has given me a deep understanding of the heart and how to provide the best possible care for my patients.
Outside of the hospital, I’m a car enthusiast—I love everything from sports cars to muscle cars and old classics.
MD: University of Toronto,
PhD: University of Toronto,
Fellowship: Congenital Cardiac Surgery, Cincinnati Children’s Hospital Medical Center,
Fellowship: Cardiothoracic Transplantation, Children’s Healthcare of Atlanta,
Interests
Congenital cardiac surgery
Services and Specialties
Publications
The aortic uncrossing procedure. Journal of Thoracic and Cardiovascular Surgery. 2024; 167(2):413-419.
Regionalization or Access to Care? A Joint Pediatric Heart Care Program That Achieves Both: One Program-Two Sites. World journal for pediatric & congenital heart surgery. 2023; 14(2):155-160.
Differences in Cost of Care by Palliation Strategy for Infants With Ductal-Dependent Pulmonary Blood Flow. Circulation: Cardiovascular Interventions. 2019; 12(4):e007232.
Three-dimensional printing in surgical planning: A case of aortopulmonary window with interrupted aortic arch. Annals of Pediatric Cardiology. 2018; 11(2):201-203.
Modified Aortic Uncrossing Procedure: A Novel Approach for Norwood Palliation of Complex Univentricular Congenital Heart Disease With a Circumflex Aorta. World journal for pediatric & congenital heart surgery. 2017; 8(4):507-510.
EPIDERMAL GROWTH FACTOR-LIKE DOMAIN 7 IS A NOVEL INHIBITOR OF NEUTROPHIL ADHESION TO INJURED CORONARY ARTERY ENDOTHELIAL CELLS. Canadian Journal of Cardiology. 2010; 26:84D-85D.
Surgical remodeling of the left ventricle in heart failure. Annals of Thoracic and Cardiovascular Surgery. 2010; 16(2):72-77.
Lower liver transplant success in females: gender differences in metabolic response to global ischemia. Transplantation Proceedings. 2004; 36(5):1485-1488.
Effect of hypertension on reproductive organ weights in various strains of rats. Journal of the American Association for Laboratory Animal Science. 2003; 42(6):39-41.
Circulating awareness of adverse effects of propofol. Journal of the American Veterinary Medical Association. 2003; 223(6):781-782.
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