Patrick W. O'Leary

Dr. Patrick W. O'Leary is a distinguished Professor of Pediatric Cardiology at Mayo Clinic College of Medicine in Rochester, Minnesota. With over three decades of experience since completing his medical degree in 1986, he has established himself as a leading expert in congenital heart disease, particularly specializing in hypoplastic left heart syndrome and Ebstein anomaly. His clinical practice focuses on pediatric echocardiography, fetal cardiology, and the non-invasive evaluation of cardiac function in children with congenital and acquired heart conditions.

Dr. O'Leary's research interests span multiple critical areas in pediatric cardiology, including regenerative medicine applications for congenital heart defects, advanced echocardiographic techniques, and innovative approaches to managing complex single ventricle physiology. His work on Fontan circulation, cardiac transplantation for congenital heart disease, and hypoplastic left heart syndrome has significantly contributed to the field. He has been instrumental in developing quality assurance standards for pediatric echocardiography through his leadership roles in professional organizations.

His publication record demonstrates consistent scholarly activity with significant contributions from 2012 through 2023, focusing primarily on clinical applications of echocardiography, surgical innovations, and management strategies for complex congenital heart conditions. The research shows a clear trajectory toward increasingly sophisticated diagnostic techniques and personalized treatment approaches for children with severe congenital heart defects.

• Patients' Choice Award and Compassionate Doctor Certification (2012)
• Excellence in Teaching Mayo Medical School (1999)
• Medical Student Research Award, University of Wisconsin (1986)
• Multiple academic honors including Phi Beta Kappa and Graduation with Distinction

Dr. O'Leary maintains an active clinical practice while contributing significantly to medical education at Mayo Clinic. His leadership in the Echocardiography Laboratory and various quality assurance committees demonstrates his commitment to advancing diagnostic standards in pediatric cardiology. Through his work with the Pediatric and Congenital Echocardiography Quality Assurance Committee, he continues to shape best practices in cardiac imaging for children. His integration of telemedicine into pediatric cardiology practice reflects his forward-thinking approach to expanding access to specialized cardiac care.

As a member of multiple professional societies including the American College of Cardiology and American Society of Echocardiography, Dr. O'Leary actively participates in the broader cardiology community, contributing to guideline development and educational initiatives that impact pediatric cardiac care nationwide.