Juan Carlos G Muniz, MD
Biography
Director, Cardiac Non-Invasive Imaging
Dr. Muñiz is the director of Cardiac Non-Invasive Imaging within The Heart Institute at Nicklaus Children’s Hospital. He earned his medical degree from Georgetown University in Washington, D.C. Dr. Muñiz completed a residency in pediatrics at the Boston Combined Program for Pediatrics at Boston Children's Hospital and Boston Medical Center in Massachusetts. He then pursued fellowships in pediatric cardiology and non-invasive cardiac imaging at Boston Children’s Hospital. His clinical interests include multimodality imaging of complex congenital heart disease and 3D modeling of complex anatomical lesions.
Dr. Muñiz is board certified in pediatric cardiology. He has published peer-reviewed articles and textbook chapters, as well as lectured both nationally and internationally.
Dr. Muñiz is employed by Nicklaus Children’s Pediatric Specialists, the multispecialty group practice of Nicklaus Children’s Health System. He sees patients at Nicklaus Children’s Hospital and is bilingual in English and Spanish.
The Heart Institute at Nicklaus Children’s, a world leader in pediatric cardiology and cardiovascular surgery for the care of children with congenital heart disease, serves as a beacon to families confronting the reality of a child or newborn with a heart defect. The Heart Institute offers the most innovative and least invasive approaches to the treatment of congenital heart disease, including many first-in-the-world procedures that were pioneered right here by The Heart Institute’s own internationally renowned cardiologists and cardiovascular surgeons.
Publications
Jain, S.S., Anderson, S.A., ..., Muniz, J.C., et al (2025). Corrigendum to Cardiac manifestations and outcomes of COVID-19 vaccine-associated myocarditis in the young in the USA: longitudinal results from the Myocarditis After COVID Vaccination (MACiV) multicenter study. EClinicalMedicine, View in Pubmed
Truong, D.T., Trachtenberg, F.L., ..., Muniz, J.C., et al (2025). Six-Month Outcomes in the Long-Term Outcomes After the Multisystem Inflammatory Syndrome in Children Study. JAMA Pediatrics, Ahead of print (), @. View in Pubmed
Jain, S.S., Anderson, S.A., ..., Muniz, J.C., et al (2024). Cardiac manifestations and outcomes of COVID-19 vaccine-associated myocarditis in the young in the USA: longitudinal results from the Myocarditis After COVID Vaccination (MACiV) multicenter study. EClinicalMedicine, 76 (), @102809. View in Pubmed
Johnson, J.N., Pouraliakbar, H., ..., Muniz, J.C., et al (2024). Society for Cardiovascular Magnetic Resonance 2022 Cases of SCMR case series. Journal of Cardiovascular Magnetic Resonance, 26 (1), @100007. View in Pubmed
Aquino, L., Muniz, J.C., Laufer, P.M., et al (2022). Gore Cardioform ASD device thrombus weeks after COVID-19 infection. Catheterization and cardiovascular interventions, 99 (4), @1161-1164. View in Pubmed
Beroukhim, R.S., Ghelani, S., ..., Muniz, J.C., et al (2022). Accuracy of Cardiac Magnetic Resonance Imaging in Diagnosing Pediatric Cardiac Masses: A Multicenter Study. JACC. Cardiovascular imaging, 15 (8), @1391-1405. View in Pubmed
Dzelebdzic, S., Sasaki, N., ..., Muniz, J.C. (2022). Hypereosinophilic Syndrome with Advanced-Stage Loeffler Endocarditis. CASE (Phila.), 6 (4), @191-195. View in Pubmed
Gill, K., Lopez, L., ..., Muniz, J.C., et al (2022). Leftward and Posterior Deviation of the Septum Primum Predicts Morbidity in Patients with Hypoplastic Left Heart Syndrome. Pediatric Cardiology, 43 (6), @1365-1372. View in Pubmed
Schauer, J., Caris, E., ..., Muniz, J.C., et al (2022). The Diagnostic Role of Echocardiographic Strain Analysis in Patients Presenting with Chest Pain and Elevated Troponin: A Multicenter Study. Journal of the American Society of Echocardiography, 35 (8), @857-867. View in Pubmed
Truong, D.T., Dione, A., Muniz, J.C., et al. (2022). Clinically Suspected Myocarditis Temporally Related to COVID-19 Vaccination in Adolescents and Young Adults: Suspected Myocarditis After COVID-19 Vaccination. Circulation, 145 (5), @345-356. View in Pubmed
Al-Mousily, M.F., Lopez, L., ..., Muniz, J.C., et al. (2021). Aortic size in children: Systolic measurements are different from diastolic measurements. Annals of Pediatric Cardiology, 14 (2), @165-169. View in Pubmed
Duarte, D., Suntharos, P., Muniz, J.C., et al (2021). Multimodality Imaging Approach for Transcatheter Closure of an Unroofed Coronary Sinus With a Covered Stent. JACC. Cardiovascular imaging, 14 (10), @e107-e110. View in Pubmed
Parikh, P. , Muniz, J.C., Lopez, L., ..., Sasaki, N. (2019). Rare Occurrence of Absent Pulmonary Valve Syndrome in the Setting of Double-Outlet Right Ventricle With Unbalanced Complete Atrioventricular Canal Defect . International journal of cardiology, 3 (2), @56-59. View in Pubmed
Fundora, M.P., Sasaki, J., Muniz, J.C., Rossi, A., Rhodes, J.F. Jr, Hannan, R.L., et al (2017). Evaluation of Residual Coarctation in Infants with a Single Right Ventricle after Stage I Palliation. Pediatric Cardiology, 38 (1), @115-122. View in Pubmed
Fundora, M.P., Aregullin, E.O., Wernovsky, G., Welch, E.M., Muniz, J.C., Sasaki, N., et al (2016). Echocardiographic and Surgical Correlation of Coronary Artery Patterns in Transposition of the Great Arteries. Congenital Heart Disease, 11 (6), @570-577. View in Pubmed
Muniz, J.C., Dummer, K., Gauvreau, K., Colan, S.D., Fulton, D.R., Newburger, J.W. (2013). Coronary artery dimensions in febrile children without Kawasaki disease. Circulation: Cardiovascular Imaging, 6 (2), @239-244. View in Pubmed
Offices
Primary Address
Education and Credentials
Education
- Fellowship - Children's Hospital - Boston
- Residency - Children's Hospital - Boston
- Medical School - Georgetown Univ. School of Medicine
Board Certifications
- Am Bd Pediatrics (Pediatrics) - Not Certified
- Am Bd Pediatrics (Ped Cardiology) - Certified