Where I Provide Care

Primary Office

96 Campus Drive
Suite 1
Scarborough, ME  04074-7133
phone: 207-885-9905
fax: 207-396-5600
22 Bramhall Street
Portland, ME  04102
phone: 207-662-2911

Edward Y Sze, MD

Cardiovascular Disease


I grew up in the Portland area. I graduated Magna Cum Laude from Cornell University, and then spent three years teaching middle school math and music in New York City. After my teaching experience, I earned my MD with distinction in research from the University of Rochester. I completed my internal medicine residency at Yale University, and then spent five years at Duke University, training in general cardiology and then advanced clinical cardiac electrophysiology.

As a heart rhythm doctor, I offer both medical and invasive management of cardiac arrhythmias. I hope to teach patients about their diagnoses and help them formulate shared plans about their management. Practicing in Maine is a privilege, and I am excited to offer care for patients in my home state.


Education & Credentials

Education & Credentials

Board Certifications
  • Cardiovascular Disease, 2016
  • Internal Medicine, 2013
  • Duke University Medical Center, Cardiovascular Disease, 2016
  • Duke University Medical Center, Clinical Cardiac Electrophysiology, 2018
  • Yale New Haven Hospital, Internal Medicine, 2013
Medical Education
  • University of Rochester School of Medicine, MD, 2010



  • Maine Medical Center since 2018
  • Maine Medical Partners since 2018
  • MaineGeneral Medical Center since 2019
  • MaineHealth Accountable Care Organization since 2018
  • MaineHealth Cardiovascular Services
  • St Marys Regional Medical Center since 2018



Peer -reviewed publications:
Left Bundle Branch Block-Induced Left Ventricular Remodeling and its Potential for Reverse Remodeling 
Left Bundle Branch Block—Associated Cardiomyopathies and Early Cardiac Resynchronization Therapy 
Impaired Recovery of Left Ventricular Function in Patients with Cardiomyopathy and Left Bundle Branch Block 
Comparison of Incidence of Left Ventricular Systolic Dysfunction Among Patients with Left Bundle Branch Block Versus Those with Normal QRS Duration 
Pulmonary Vein Isolation Lesion Set Assessment During Radiofrequency Catheter Ablation for Atrial Fibrillation 
Why the Authors Use Cardiac Resynchronization Therapy with Defibrillators 
Left bundle branch block: Is it “Unsafe at any speed”? 
Why the Authors Use Cardiac Resynchronization Therapy with Defibrillators 
A longitudinal, collaborative, practice-based learning and improvement model to improve post-discharge heart failure outcomes 
Relation between renal function and response to cardiac resynchronization therapy in Multicenter Automatic Defibrillator Implantation Trial Cardiac Resynchronization Therapy 
Risk factors for recurrent hospitalization for heart failure in patients from the MADITII
International Long QT Syndrome Investigative Group. Long QT syndrome in patients over 40 years of age: increased risk for LQTS-related cardiac events in patients with coronary disease

Book chapters:
Mapping and Ablation of Typical and Atypical Accessory Pathways
Ablation of Posteroseptal Accessory Pathways