Stephen P Seslar, MD, PhD

Stephen P Seslar, MD, PhD

Cardiology, Arrhythmia, Cardiac Catheterization

On staff since March 2008

Children's Title: Attending Physician

Academic Title: Professor, Pediatrics

Research Center: Center for Integrative Brain Research

"My work as a pediatric electrophysiologist involves taking care of children with heart rhythm disorders. The field of electrophysiology is so exciting because it has undergone tremendous technological advancements in the past 15 years. These advancements now allow us, in many cases, to cure heart rhythm disorders safely and in ways never before possible. It is a great example of medical technology directly impacting quality of life, and I greatly enjoy being a part of that."

  • Stephen Seslar, MD, PhD is attending pediatric cardiologist and pediatric electrophysiologist at Seattle Childrens Hospital and is assistant professor at the University of Washington School of Medicine. He is co-directs the arrhythmia care of adults with congenital heart disease at the University of Washington. He earned his MD and PhD at Georgetown University, Washington DC. He completed his pediatric residency at the University of California, San Diego.

    Dr. Seslar completed his pediatric cardiology fellowship followed by an advanced electrophysiology fellowship at Boston Childrens Hospital in Massachusetts. Seslar has expertise and training in pediatric cardiology, electrophysiology and pacemaker implantation. Specific areas of clinic interest include medical informatics, databases design and arrhythmia care in children and adults with congenital heart disease.

    • Related Resources

    • Christine ARLINGTON 08.31.17

      Thank you for fixing 12 year old William Foster's heart rhythm disorder! He has been exercising and enjoying sports! The Fosters

    • Anna Seattle, WA 10.21.13

      Dr. Seslar is not only a brilliant doctor, he's also an excellent human being. My little guy, Charlie, was born via emergency C-section because they detected atrial flutter in him at 38 weeks. We were so fortunate to have Dr. Seslar leading the superb Children's team for his care. He listened and explained the situation, a very stressful one for a brand-new mom!, very well. He obviously not only has deep expertise in the technical side of his field, but also has the sincere empathy everyone hopes for in their doctor.

    • Megan San Diego CA 11.22.12

      Yes, I strongly agree that Dr. Seslar is a very good listener. Some doctors forget to listen to patients, and Dr. Seslar listens to your or your kid's concerns very well. He is very dedicated to his work, and I will never forget him. If I ever end up in Seattle, I'd definitely see him again! He is also a careful doctor who knows a lot about pacemakers and other disorders. :)

    • Sandra San Diego, CA 02.28.11

      If you get to chose your Pediatric Cardiologist, chose Dr. Seslar. He will go over and above your expectations and your child will love his visits. My adult son was fortunate to be one of Dr. Seslar's patients while he was working at Children's Hospital in San Diego. We both miss him very much. I give Dr. Seslar a Five+ Star rating. He is the best.

  • Award Name Award Description Awarded By Award Date
    SEATTLE TOP DOCTOR - 2022 Seattle Magazine 2022
    Residency Teaching Award UCSD Pediatric Residency Program 1999
    AAP Certificate of Achievement July 1998
    AAP Certificate of Achievement Dec. 1996
  • Manuscripts in Refereed Journals

    • Seslar SP, Garrison MM, Larison C, Salerno JC
      A Multi-institutional Analysis of Inpatient Treatment for Supraventricular Tachycardia in Newborns and Infants.
      22903738 Pediatric cardiology, 2012 Aug.
    • Blaufox AD, Tristani-Firouzi M, Seslar S, Sanatani S, Trivedi B, Fischbach P, Paul T, Young ML, Tisma-Dupanovic S, Silva J, Cuneo B, Fournier A, Singh H, Tanel RE, Etheridge SP
      Congenital long QT 3 in the pediatric population.
      22360817 The American journal of cardiology, 2012 May : 109(10)1459-65
    • Punn R, Seslar SP
      Novel electrocardiogram manifestations of a tension pneumothorax.
      21811813 Pediatric cardiology, 2011 Dec. : 32(8)1258-9
    • Salerno JC, Seslar SP, Chun TU, Vafaeezadeh M, Parrish AR, Permut LC, Cohen GA, McMullan DM
      Predictors of ECMO support in infants with tachycardia-induced cardiomyopathy.
      21448617 Pediatric cardiology, 2011 Aug. : 32(6)754-8
    • Punn R, Lamberti JJ, Balise RR, Seslar SP
      QTc prolongation in children following congenital cardiac disease surgery.
      21362209 Cardiology in the young, 2011 Aug. : 21(4)400-10
    • Salerno JC, Garrison MM, Larison C, Seslar SP
      Case fatality in children with supraventricular tachycardia in the United States.
      21418251 Pacing and clinical electrophysiology : PACE, 2011 July : 34(7)832-6
    • Lichtenstein BJ, Bichell DP, Connolly DM, Lamberti JJ, Shepard SM, Seslar SP
      Surgical Approaches to Epicardial Pacemaker Placement: Does Pocket Location Affect Lead Survival?
      20690018 Pediatric cardiology, 2010 Oct. : 1016-1024
    • Wolf CM, Seslar SP, den Boer K, Juraszek AL, McGowan FX, Cowan DB, Del Nido P, Triedman JK, Berul CI, Walsh EP
      Atrial remodeling after the Fontan operation.
      19962486 The American journal of cardiology, 2009 Dec. : 1737-42
    • Seslar SP, Shepard SM, Berul CI
      "Atrial torsades de pointes" in the long QT syndrome.
      19015966 Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing, 2009 March : 95-7
    • Seslar SP, Berul CI, Burklow TR, Cecchin F, Alexander ME
      Transient prolonged corrected QT interval in Lyme disease.
      16737890 The Journal of pediatrics, 2006 May : 692-7
    • Seslar SP, Alexander ME, Berul CI, Cecchin F, Walsh EP, Triedman JK
      Ablation of nonautomatic focal atrial tachycardia in children and adults with congenital heart disease.
      16643355 Journal of cardiovascular electrophysiology, 2006 April : 359-65
    • Khairy P, Seslar SP, Triedman JK, Cecchin F
      Ablation of atrioventricular nodal reentrant tachycardia in tricuspid atresia.
      15175070 Journal of cardiovascular electrophysiology, 2004 June : 719-22

    Other Publications

    • Seslar SP
      Cyanotic Heart Disease
      Textbook of Clinical Pediatrics, 2011 : 2nd editio(Springer,)
    • Salerno JC, Seslar SP
      Supraventricular tachycardia.
      19255396 Archives of pediatrics & adolescent medicine, 2009 March : 268-74


Board Certification(s)

Pediatric Cardiology

Medical/Professional School

Georgetown University Medical Center, Washington, DC


University of California Medical Center San Diego, San Diego, CA


Boston Children's Hospital, Boston, MA