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Terrence U. Chun, MD

Terrence U. Chun, MD


On staff since September 2004

Academic Title: Associate Professor, Pediatircs

"I am fascinated by how and why arrhythmias occur in children. Many of these frightening conditions are completely curable, and I love being able to educate my patients and their families to demystify the diagnosis. I feel privileged to have the opportunity to rid them of their disease. Some of our patients have life-threatening conditions or have even survived a sudden-death event; we have the technology to bring them back to normal quality of life and enable them to be normal kids again. It amazes me every day. Not a day goes by that I dont relish the chance to help someone in that way."


TimmOak Harbor01.30.13
Dr. Chun was the best thing that happened to our lives! My daughter was diagnosed with Wolf Parkinson White( WPW) at 14 yrs old. This came as a complete shock to us as she was very involved in sports. Dr Chun sat with us for some time and explained in lay men terms all about WPW , answered all our questions gave us all the options for treatment and calmed all our fears and worries. Ultimately it was my daughters decision what treatment she would choose, due to her heavy involvement in Basketball and beginning her first year in High School, she opted for the Electrophysiology study with Ablation. Needless to say my daughters proceedure went extraodinarily well and my daughter has no scars and no more SVT! She made the high school freshman and JV Basketball team and has been playing without any problems or past symptoms! It is truly miraculous and we will forever be full of gratitude and thankfulness to Dr. Chun and the cardiology group at Seattle Childrens!
ErinButte, Montana 10.14.12
Dr. Chun is truly amazing man. He took the time to explain SVT in our newborn and even drew us pictures. He is very knowledgeable and personable. Easy to talk to and answered all of our questions. Dr. Chun even made an effort to visit us and our son Cooper when he was no longer on our rotation. We were in Seattle twice and both times Dr. Chun made us feel like everything was being done to help Cooper get better and he was overseeing it all. I would recommend him to any and everyone, he was there when our world was turned upside down and helped turn it back around!
JodiEdmonds, WA12.21.11
Dr. Chun and his team walk the red carpet in our world. They are first class people. Thankfully, my daughter did not have a life threatening heart condition. She did kick into SVT about 2 times a month while at gymnastics practice. Dr. Chun and his team found the culprit group of cells triggering my daughter's heart and put an end to her SVT. I am forever thankful, and I am truly appreciative of their respect and thoughtfulness as they communicated crucial information and procedures in such a patient friendly way. i believed that my daughter's heart was in the right hands. They whole-heartedly earned our total trust. I highly recommend Dr. Chun and his team.
BrigetteRedmond, WA11.10.11
Dr Chun is great. It's really scary when you find out your son has a heart condition. And some of the previous doctors I've talked to didn't take the time to answer all my questions and explain the reasons for the course of action they were recommending. As a parent, I just want to know I can trust the doctor and that the doctor cares and is taking the time to think about what is really best for my son. Dr Chun was the fantastic - he printed off the test results (many, many pages) and was willing to go through them with me until I felt comfortable. If you ever have need for a children's cardiologist (and I hope you don't!) I would definitely recommend Dr Chun!
KateKirkland, WA10.20.11
Dr. Chun is amazing! Besides saving our daughter from her heart surgery complications Dr. Chun is one of those rare doctors who take extra time to listen and truly asks how you are doing. We look forward to our cardio appointments because we know that we are being taken care of.
Thank you for all you did for our son JT Marglon! YOu and the staff at Children's are amazing.
Recommend Dr. Terrence Chun


Board Certification(s)
Pediatric Cardiology
Medical/Professional School
Hahnemann University School of Medicine, Philadelphia
Pediatrics, Cedars-Sinai Medical Center, Los Angeles
Pediatric Cardiology, Cincinnati Children's Hospital - Pediatric Residency, Cincinnati
Pediatric Cardiology, Stanford University School of Medicine, Stanford
Clinical Interests

Catheter ablation of cardiac arrhythmias; post-operative arrythmias; implantable device therapy for treatment of arrhythmias and prevention of sudden cardiac death.

Awards and Honors

Award NameAward DescriptionAwarded ByAward Date
SEATTLE'S TOP DOCTOR - 2014Seattle Metropolitan Magazine 2014
Top Doctors 2011, Pediatric CardiologySeattle Metropolitan Magazine 2011
Outstanding Teacher of the YearUniversity of Washington Affiliated Hospitals Pediatrics Residency Program 2007 - 2008


Multi-institutional study of implantable defibrillator lead performance in children and young adults: results of the Pediatric Lead Extractability and Survival Evaluation (PLEASE) study.
Circulation , June 2013: 127(24)2393-402
Predictors of ECMO support in infants with tachycardia-induced cardiomyopathy.
Pediatric cardiology , Aug. 2011: 32(6)754-8
Disorders of Cardiac Rhythm
Textbook of Clinical Pediatrics, 2nd edition , 2011
Pediatric nonpost-operative junctional ectopic tachycardia medical management and interventional therapies.
Journal of the American College of Cardiology , Feb. 2009: 53(8)690-7
Pacemaker and defibrillator therapy in pediatrics and congenital heart disease.
Future cardiology , Sept. 2008: 4(5)469-79
Sinus bradycardia, Wolff Parkinson White, and left ventricular noncompaction: an embryologic connection?
Pediatric cardiology , May 2008: 679-82
Coronary compression by an epicardial pacing lead within the pericardium.
Journal of cardiovascular electrophysiology , July 2007: 18(7)786
Blade consolidation of multiple atrial septal defects: a novel approach to transcatheter closure.
Pediatric Cardiology , Dec. 2004: 25(6)671-4
Advances in the approach to treatment of supraventricular tachycardia in the pediatric population.
Current cardiology reports , Sept. 2004: 322-6
Polymorphic ventricular tachycardia and KCNJ2 mutations.
Heart rhythm : the official journal of the Heart Rhythm Society , July 2004: 235-41
Implantable cardioverter defibrillators in children.
Expert review of cardiovascular therapy , July 2004: 561-71
Novel implantable defibrillator configuration in a small patient
Annals of Thoracic Surgery ,
Monomorphic ventricular tachycardia following diphenhydramine overdose
Journal of Medical Toxicology ,
Technical considerations in resynchronization therapy in pediatric and congenital heart disease patients
Heart Rhythm ,
1. Percutaneous embolization of congenital portosystemic venous fistula in an infant with Down syndrome.
Case Reports in Vascular Medicine ,


Presentations TitleEventLocationDate
When to use ICDs in the Pediatric PatientHeart Rhythm Scientific Sessions 2013Denver, COMay 10, 2013
What New Technologies in Pacemakers are Useful and Relevant for Pediatrics?Heart Rhythm Scientific Sessions 2011San Francisco, CAMay 5, 2011
Cardiovascular Effects of Stimulant MedicationsDiagnosis, Management, and Prevention of Cardiovascular Disease SymposiumSeattle, WAApril 30, 2011
Syncope in Children and Adolescents: The Good, The Bad, and The UglyNational Association of Pediatric Nurse Practitioners Annual ConferenceShoreline, WAMarch 8, 2010
Management of arrhythmias in pediatrics and congenital heart disease Northwest Electrophysiology Society MeetingBend, ORMarch 5, 2010
Special considerations for the pediatric EP patientCurrent Concepts of Arrhythmia and Device Management SymposiumSeattle, WASept. 25, 2009
Contemporary approach to pediatric arrhythmiasPediatric Associates all-provider continuing medical education activity Bellevue, WAJan. 7, 2009
Device implantation in young patients and congenital heart disease 4th annual Northwest Young EP SymposiumCle Elum, WAAug. 9, 2008
Complex cases in pediatric electrophysiology 2nd annual Northwest Young EP Symposium Union, WAAug. 20, 2006

Research Funding

Grant TitleGrantorAmountAward Date
Development of an extendible electrophysiology study reporting systemUniversity of Washington $12,000 2008 - 2011
The relation between neurohormonal activation, pulmonary regurgitation, and aerobic capacity in repaired tetralogy of FallotAmerican Heart Association $38,000 2002 - 2003

Primary Office

Seattle Children's
RC.2.820 - Cardiology Administration
4800 Sand Point Way NE
Seattle, WA 98105

Additional Offices

Seattle Children's
RC.2.820 - Cardiology-Heart Ctr
4800 Sand Point Way NE
Seattle, WA 98105
Seattle Children's Bellevue Clinic and Surgery Center
1500 - 116th Ave NE
Bellevue, WA 98004

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