Timothy J. Pirolli, M.D., is an Assistant Professor in the Department of Cardiovascular and Thoracic Surgery at UT Southwestern Medical Center.

Dr. Pirolli specializes in the surgical treatment of congenital heart conditions in children and adults.

He is certified in thoracic and cardiac surgery by the American Board of Thoracic Surgery.

Dr. Pirolli’s research interests include quality improvement in congenital heart surgery; cardiothoracic surgical education and training; clinical outcomes of single-stage versus double-stage repair of atrioventricular canal and aortic arch hypoplasia; and autologous tissue pulmonary arterioplasty in single-ventricle palliation.

He has published a number of scholarly articles and abstracts and co-authored four book chapters on related topics.

Dr. Pirolli earned his medical degree at the University of Pennsylvania School of Medicine. He completed his residency in cardiothoracic surgery at Stanford Medicine and then received advanced training in pediatric cardiac surgery through a fellowship at Children's Hospital of Philadelphia.

He also holds a B.A. degree (Magna Cum Laude) in biology and geology from the University of Pennsylvania School of Arts and Sciences.

Dr. Pirolli is a member of the American College of Cardiology, Society of Thoracic Surgeons, and Cardiothoracic Surgery Network, among other professional organizations.

He joined the UT Southwestern faculty in 2015.

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Meet Dr. Pirolli

Cardiothoracic Surgeon in Dallas

Every year in the U.S., approximately 40,000 babies are born with congenital heart defects. Many of these babies will require a surgical correction of their heart defects, often during infancy or early childhood.

UT Southwestern Medical Center cardiothoracic surgeon Dr. Timothy Pirolli specializes in surgically treating all deformities of the heart and/or cardiac blood vessels in both children and adults.

The spectrum of these conditions includes aortic and mitral valve disease, atrial and ventricular septal defectspatent ductus arteriosus, patent foramen ovale, hypoplastic left heart syndrome, transposition of the great arteriescoarctation of the aorta, and tetralogy of Fallot.

Dr. Pirolli uses the most sophisticated techniques and technologies to perform a number of procedures – including heart transplantation, slide tracheoplasty for congenital tracheal stenosis, and other complex repairs and replacements.

He credits his success as a congenital heart surgeon to having been trained under some of the top congenital heart surgeons in the world, including Dr. Thomas Spray at Children’s Hospital of Philadelphia and Dr. Frank Hanley at Stanford University/Lucille Packard Children’s Hospital, as well as working with his internationally known surgical colleagues at UTSW, Dr. Joseph Forbess and Dr. Kristine Guleserian. 

Although many of Dr. Pirolli’s patients are infants, children, and adolescents (newborns to 18 years old), he treats a number of adults, as well – in many cases to revise congenital heart procedures performed years ago.

Collaborative Care

Regardless of patients’ ages or conditions, Dr. Pirolli enjoys being integrally involved in their care and part of UT Southwestern’s skilled multidisciplinary team. 

“I’m a big believer in collaborative patient care,” he says. “From our adult congenital heart disease specialists to our interventional cardiologists and intensivists and nurse practitioners, UT Southwestern has an outstanding team of experienced physicians who work together to come up with the best solutions for treating patients with congenital heart defects.”

The number and variety of patients with congenital heart defects that Dr. Pirolli and his colleagues treat give them a level of expertise not found at many other centers.

“Because UT Southwestern is one of the busiest congenital heart surgery programs in the country, performing almost 400 open-heart surgeries a year on patients with congenital heart issues, we’re much more experienced at evaluating and treating congenital heart disease than places that see only a few cases a year,” he notes.

The most satisfying part of his work, he adds, is making a positive impact on the lives of patients and their families.

“Having the opportunity to help people who are born with congenital heart defects and they are then able to live normal lives is very gratifying,” he says. “Congenital heart disease is so varied and complex; solving its riddles for patients of all ages makes it exciting to come to work every day.”

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Education & Training
  • Fellowship - Children's Hospital of Philadelphia (2014-2015), Pediatric Cardiac Surgery
  • Residency - Stanford University School of Medicine (2008-2014), Cardiothoracic Surgery
  • Medical School - University of Pennsylvania School of Medicine (2004-2008)
Professional Associations & Affiliations
  • University of Pennsylvania, School of Medicine (2008), Committee of Recent Graduates
  • Society of Thoracic Surgeons (2012)
  • American College of Cardiology (2015)

Clinical Focus

  • Adult Congenital Heart Defects
  • Heart Transplant Surgery
  • Adult Congenital Heart Surgery

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Q&A by Dr. Pirolli

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Children's Medical Center of Dallas

1935 Medical District Drive
Dallas, Texas 75235
214-730-5437 Directions