Faculty profile

William Chan

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Assistant Clinical Professor (Adjunct)MedicineMcMaster University

Research

Dr. William K. Chan is a board-certified adult cardiac electrophysiologist and consultant cardiologist at Waterloo Regional Health Network, where he performs over 400 electrophysiology and device procedures annually as part of a multi-physician EP team. He holds an Assistant Clinical Professor (Adjunct) appointment with the Department of Medicine at McMaster University, as well as a cross-disciplinary appointment with the Faculty of Engineering at the University of Waterloo, where he serves as Clinician-in-Residence in the Department of Systems Design Engineering. His clinical practice spans complex atrial and ventricular arrhythmia management, catheter ablation, and the full spectrum of cardiac implantable electronic devices, with particular focus on pulsed field ablation, zero-fluoroscopy workflows with intracardiac echocardiography, conduction system pacing, leadless pacemakers, and left atrial appendage occlusion. He has introduced multiple first-at-site technologies at Waterloo Regional Health Network, including pulsed field ablation, mobile EP lab configurations, the extravascular ICD, and leadless atrial pacing. Nationally, he serves as a proctor and consultant for Biosense Webster, Medtronic, and Boston Scientific, training electrophysiologists across Canada on new device and catheter platforms during early adoption.

Research areas, by share of publications

Research areas are derived from OpenAlex topics of their publications.

14 publications.

01

How to Use a Variable Loop Circular Catheter to Perform Zero Fluoro Pulmonary Vein Isolation With Pulsed Field Ablation

Chan WK, Keshishi M, Gomez T, Jolly US

PACE - Pacing and Clinical Electrophysiology20261 citationsFirst author
02

Zero-Fluoroscopy Pulsed Field Ablation with a Variable Loop Circular Catheter in a Patient with a Permanent Pacemaker

Chan WK, Jolly US

CJC Open2026First author
03

A simplified, fluoroless workflow for atrial fibrillation pulsed field electroporation

Chan WK, Jolly US

Journal of Arrhythmia20254 citationsFirst author
04

Response to “Catheter Ablation: Evolution and Efficiencies”

Chan WK, Acosta‐Vélez JG, Jolly US

Journal of Cardiovascular Electrophysiology20251 citationsFirst author
05

A Mobile Setup for Atrial Fibrillation Catheter Ablation

Chan WK, Jolly US

CJC Open2025First author
06

Fibrillation auriculaire et syndrome de tachycardie-bradycardie chez une femme de 68 ans

Wajid H, Jolly US, Chan WK

CANADIAN MEDICAL ASSOCIATION JOURNAL2025Senior author
07

Atrial fibrillation and tachy-brady syndrome in a 68-year-old woman

Wajid H, Jolly US, Chan WK

CANADIAN MEDICAL ASSOCIATION JOURNAL2025Senior author
08

Utilizing preprocedural imaging and active fixation lead in cardiac resynchronization therapy device upgrade for persistent left superior vena cava

Chiang CK-W, Chan WK-B, So A, Yee R, Khan H

HeartRhythm Case Reports20227 citations
09

A case report of inappropriate inhibition of ventricular pacing due to a unique pacemaker electrogram storage feature

Khan HR, Chan WK, Kanawati J, Yee R

European Heart Journal: Case Reports20212 citations
10

Utility of 3-D printing for cardiac resynchronization device implantation in congenital heart disease

Kanawati J, Kanawati AJ, Rowe MK, Khan H, Chan WK, Yee R

HeartRhythm Case Reports20207 citations

Roles and appointments

  • Assistant Clinical Professor (Adjunct), Biomedical Engineering, University of Waterloo (2025 - 2026)
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Subject: Prospective PhD student: Cardiac Arrhythmias and Treatments Dear Professor Chan, My name is [your name], and I am a [your current degree or role] at [your institution]. I am applying for a PhD position starting in [term and year]. I read your paper "How to Use a Variable Loop Circular Catheter to Perform Zero Fluoro Pulmonary Vein Isolation With Pulsed Field Ablation" (2026), and it connects closely to my own work on [your research topic]. [One or two sentences on what you did and what you learned.] Are you accepting new PhD students for [term and year]? I have attached my CV and transcripts, and I would be glad to talk at a time that suits you. Thank you for your time. Kind regards, [your name]
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