This individual is a community provider. Community providers have medical privileges to practice at Connecticut Children's, but they are independent providers who have been granted use of the hospital's facilities for the care and treatment of their patients. They schedule and bill separately for their services and are not employees or agents of Connecticut Children's or any of its entities. If you need assistance finding a Connecticut Children's doctor, please call 860.545.9000.

Shailendra Upadhyay, MD, CEPS, FHRS, is the Division Head of Connecticut Children’s Heart Center. Dr. Upadhyay’s clinical expertise extends across the entire spectrum of cardiac care, bridging the gap between pediatric patients and adults with congenital heart disease. His areas of interest include adult congenital heart disease, pulmonary hypertension, pregnancy in congenital heart disease, and heart rhythm disorders.

Dr. Upadhyay performs a full range of arrhythmia management in children and adults with congenital heart disease. These include innovative treatments such as the catheter ablation of certain cardiac arrhythmias performed entirely without X-rays by utilizing three dimensional electro-anatomic mapping systems. Dr. Upadhyay also performs Electrophysiology procedures such as the implantation and management of cardiac pacemakers and implantable defibrillators in children.

Dr. Upadhyay is active in clinical research related to adult congenital heart disease and heart rhythm disorders.

Education

K. J. Somaiya Medical College

Residency

Yale - New Haven Hospital

P.D. Hinduja National Hospital

K.J. Somaiya Medical College

Bridgeport Hospital

Fellowship

Steven & Alexandra Cohen Children's Med Ctr of NY

MUSC - Children's Hospital

Boston Children's Hospital

American Board of Internal Medicine
American Board of Pediatrics
Connecticut Children's Specialty Group
105- A Newtown Road
Danbury
CT
06810-4194
11 South Road, Suite 120
Farmington
CT
06032-2483
310 Western Boulevard, Building C
Glastonbury
CT
06033-1236
282 Washington Street, Suite 2B
Hartford
CT
06106
111 Salem Turnpike
Norwich
CT
06360-2740
191 Post Road West 1st. Floor
Westport
CT
06880-4625

Associate Professor, University of Connecticut School of Medicine

  • Dodeja A, Upadhyay S. Arrhythmias in Adult Congenital Heart Disease Heart Failure. Heart Failure Clin - 2023.12.004 1551-7136/23 Elsevier Inc
  • Fusco, F, Krasuski, R, Upadhyay S.., Sadeghi, S. et al. COVID-19–Related Thrombotic and Bleeding Events in Adults with Congenital Heart Disease. Journal of American College of Cardiology (JACC) Adv. 2023 Dec, 2 (10). https://doi.org/10.1016/j.jacadv.2023.100701
  • Krieger EV, Zeppenfeld K, DeWitt ES, Duarte VE, Egbe AC, Haeffele C, Lin KY, Robinson MR, Sillman C, Upadhyay S; American Heart Association Adults With Congenital Heart Disease Committee of the Council on Lifelong Congenital Heart Disease and Heart Health in the Young and Council on Clinical Cardiology. Arrhythmias in Repaired Tetralogy of Fallot: A Scientific Statement from the American Heart Association. Circ Arrhythm Electrophysiol. 2022 Nov; 15 (11): e000084. 
  • Broberg CS, Kovacs AH, Sadeghi S,..Upadhyay S, Fisher SD, Cook S, Cotts TB, Aboulhosn JA. COVID-19 in Adults with Congenital Heart Disease. J Am Coll Cardiol. 2021 Apr 6; 77 (13):1644-1655. doi: 10.1016/j.jacc.2021.02.023. PMID: 33795039; PMCID: PMC8006800.
  • Doan TT, Toro-Salazar O, Hutt C, Upadhyay S. Miniaturized Implantable Loop Recorder in Patients with Congenital Heart Disease and Children. Connecticut Medicine, 2020 Feb, 84 (2), 57-63.
  • Doan, T.T., Wang, A. Upadhyay S, Davey, B. et al. Two Cases of a Prenatally Diagnosed Double Aortic Arch with Postnatal Obliteration of the Distal Left Aortic Arch. Pediatr Cardiol 40, 1748–1751 (2019). 
  • Davey BT, Quintana C, Upadhyay S. An Unusual Case of Commotio Cordis Resulting in Ventricular Flutter. J Emerg Trauma Shock. 2018 Jul-Sep; 11(3):225-227. doi: 10.4103/JETS.JETS_78_17. PMID: 30429633; PMCID: PMC6182959.
  • Upadhyay S, Walsh EP, Cecchin F, Triedman JK, Villafane J, Saul JP. Epicardial ablation of tachyarrhythmia in children: Experience at two academic centers. Pacing Clin Electrophysiol. 2017 Sep;40(9):1017-1026
  • Upadhyay S, Valente AM, Triedman JK, Walsh EP. Catheter Ablation for Atrioventricular Nodal Reentry Tachycardia in Patients with Congenital Heart Disease. Heart Rhythm. 2016 Jun;13(6):1228-37.
  • Toro-Salazar O, Gillan E, Ferranti J, Orsey A, Rubin K, Upadhyay S, Mazur W, Hor KN. Effect of Myocardial Dysfunction in Cardiac Morbidity and All-Cause Mortality in Childhood Cancer Subjects Treated With Anthracycline Therapy. Cardio-Oncology, November 2015; 1:1.

Locations Where I See Patients

Exterior view of Connecticut Children's Medical Center in Hartford

Connecticut Children’s Medical Center – Hartford

282 Washington Street
Hartford, CT06106
United States

4.8
out of 5

Provider showed concern

4.8

Provider explained things clearly

4.8

Provider included you in decisions

4.8

Provider discussed treatment options

4.8

Likelihood of recommending this provider

4.7

Most Recent Comments

July 7, 2025
Best ever every time
July 7, 2025
Excellent
June 6, 2025
There really was not any problem, just a yearly checkup, but Dr. Shai always takes the time to listen and talk about non heart issues while there.
April 4, 2025
Good
April 4, 2025
Feedback on my condition explained and discussed my future plan
April 4, 2025
Very Good, Always
February 2, 2025
Dr. Shay took very good care of me!
January 1, 2025
Dr Shay explains things well & is kind
January 1, 2025
I love Dr. Shai and would recommend him to anyone seeking cardiac care
November 11, 2024
Very pleased with my care
October 10, 2024
Good experience
October 10, 2024
Excellent Dr