Vijay Chauhan, University of Toronto

Research

Cardiac Resynchronization Therapy Cardiomyopathy Echocardiography Electrocardiography Heart Failure Patients Qrs Complex Signal Analysis

Latest papers

Left atrial myopathy development and progression in atrial fibrillation patients with recurrent left atrial ablation procedures: the LAMP-AF study.
Heart rhythm · 2026
Isochronal Apparent Dispersion at Early Activation Sites Accurately Identifies Outflow Tract Ventricular Ectopy Sites.
Heart, lung & circulation · 2025
Canadian national electrophysiology ablation registry report 2011–2016
BMC Health Services Research · 2021

All 18 publications

Latest funding

Quantifying QRS fragmentation to improve patient selection for cardiac resynchronization therapy
CIHR · 2021 · Nominated PI
$344,250
Rotor Mapping in Human Atrial Fibrillation
CIHR · 2014 · Nominated PI
$149,015
Signal analysis of T-wave alternans for predicting sudden cardiac deaths
NSERC · 2011 · Co-investigator
$329,621

All 4 grants and awards

18 publications.

01

Left atrial myopathy development and progression in atrial fibrillation patients with recurrent left atrial ablation procedures: the LAMP-AF study.

Saraf K, Malaty M, Ferreira D, Govender K, Butel-Simoes L, Kaur A, Sverdlov A, Sanchez AP, Ha ACT, Chauhan V, D'Ambrosio P, Morris GM, Jackson N

Heart rhythm2026

DOI: 10.1016/j.hrthm.2026.04.056 PMID: 42097250

02

Isochronal Apparent Dispersion at Early Activation Sites Accurately Identifies Outflow Tract Ventricular Ectopy Sites.

Anderson RD, Masse S, Hawson J, Lee G, Prabhu M, Bhaskaran A, Ha ACT, Nair K, Chauhan V, Nanthakumar K

Heart, lung & circulation2025

DOI: 10.1016/j.hlc.2024.10.018 PMID: 39890583

03

Canadian national electrophysiology ablation registry report 2011–2016

Kaoutskaia A, Shurrab M, Amit G, Parkash R, Exner D, Toal S, Sterns L, Sarrazin J-F, Chauhan V, Sultan O

BMC Health Services Research20218 citationsOpen Access

DOI: 10.1186/s12913-021-06441-0 PMID: W3122549313

04

Health Care Utilization After Ventricular Tachycardia Ablation: A Propensity Score-Matched Cohort Study.

Porta-Sánchez A, Ha ACT, Wang X, Almehmadi F, Austin PC, Fischer HD, Al-Qubbany A, Chemello D, Chauhan V, Downar E, Lee DS, Nanthakumar K

The Canadian journal of cardiology2019

DOI: 10.1016/j.cjca.2018.10.011 PMID: 30760423

05

Prevention of venous thrombosis after electrophysiology procedures: a survey of national practice

Burstein B, Barbosa RS, Samuel M, Kalfon E, Philippon F, Birnie D, Mangat I, Redfearn D, Sandhu R, Macle L

Journal of Interventional Cardiac Electrophysiology201810 citations

DOI: 10.1007/s10840-018-0461-9

06

Resolving Bipolar Electrogram Voltages During Atrial Fibrillation Using Omnipolar Mapping.

Haldar SK, Magtibay K, Porta-Sanchez A, Massé S, Mitsakakis N, Lai PFH, Azam MA, Asta J, Kusha M, Dorian P, Ha ACT, Chauhan V, Deno DC, Nanthakumar K

Circulation. Arrhythmia and electrophysiology2017

DOI: 10.1161/circep.117.005018 PMID: 28887362

07

Genetic Testing in Inherited Heart Diseases: Practical Considerations for Clinicians.

Care M, Chauhan V, Spears D

Current cardiology reports2017

DOI: 10.1007/s11886-017-0885-3 PMID: 28812208

08

T-Wave Morphology Analysis in Congenital Long QT Syndrome Discriminates Patients From Healthy Individuals.

Porta-Sánchez A, Spillane DR, Harris L, Xue J, Dorsey P, Care M, Chauhan V, Gollob MH, Spears DA

JACC. Clinical electrophysiology2017

DOI: 10.1016/j.jacep.2016.10.013 PMID: 29759450

09

Evaluation of Prolonged QT Interval: Structural Heart Disease Mimicking Long QT Syndrome.

Weissler-Snir A, Gollob MH, Chauhan V, Care M, Spears DA

Pacing and clinical electrophysiology : PACE2017

DOI: 10.1111/pace.13040 PMID: 28155223

10

Usefulness of 14-Day Holter for Detection of Nonsustained Ventricular Tachycardia in Patients With Hypertrophic Cardiomyopathy.

Weissler-Snir A, Chan RH, Adler A, Care M, Chauhan V, Gollob MH, Ziv-Baran T, Fourey D, Hindieh W, Rakowski H, Spears DA

The American journal of cardiology2016

DOI: 10.1016/j.amjcard.2016.07.043 PMID: 27567133

Quantifying QRS fragmentation to improve patient selection for cardiac resynchronization therapy

Nominated PICIHR2021Project Grant

Principal investigators: Chauhan, Vijay S

Keywords: Cardiac Resynchronization Therapy; Cardiomyopathy; Echocardiography; Electrocardiography; Heart Failure; Patients; Qrs Complex; Signal Analysis; Ventricle

$344,250

Rotor Mapping in Human Atrial Fibrillation

Nominated PICIHR2014Proof of Principle Program - Phase I

Principal investigators: Chauhan, Vijay S

Keywords: Ablation; Atrial Fibrillation; Electrograms; Human; Mapping; Signal Processing

$149,015

Signal analysis of T-wave alternans for predicting sudden cardiac deaths

Co-investigatorNSERC2011Collaborative Health Research Projects

Principal investigators: Krishnan, Sridhar

$329,621

Arrhythmogenic Right Ventricular Cardiomyopathy: From Genes to Proteins, Cells, Tissues and Patients

Co-investigatorCIHR2008Emerging Team Grant: From Genes to Proteins, Cells, Tissues and Patients - LOI

Principal investigators: Hamilton, Robert M; Ackerley, Cameron A; Mahuran, Don J; Nanthakumar, Kumaraswamy; Scherer, Stephen W

Keywords: Arrhythmogenic Right Ventricular Cardiomyopathy; Cardiomyocyte Culture; Conduction Velocity; Gene Transfection; Multiparticle Immunogold; Sirna

From CIHR, NSERC and SSHRC funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998, including their latest published competition results.

Frequent collaborators

Medicine
Medicine/Cardiology
Department of Medicine
Cardiology
Pediatrics
Biostatistics Division
Other

Co-authors at University of Toronto, colored by department. Thicker lines mean more shared papers; select anyone to open their profile and their own map.

Kumaraswamy Nanthakumar

Medicine/Cardiology

6 shared papers, latest 2025

David Birnie

Department of Medicine

2 shared papers, latest 2018

Nicholas Mitsakakis

Biostatistics Division

1 shared papers, latest 2017

Girish Nair

Department of Medicine

1 shared papers, latest 2021

Damian Redfearn

Medicine/Cardiology

1 shared papers, latest 2018

Vidal Essebag

Medicine

1 shared papers, latest 2018

Write to this professor

A short, specific email works best. This draft uses one of their recent papers; replace the parts in brackets with your own details before sending.

Applying for

Paper to mentionMention their CIHR grant from 2021

Subject: Prospective PhD student: Cardiac Resynchronization Therapy Dear Professor Chauhan, 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 "Left atrial myopathy development and progression in atrial fibrillation patients with recurrent left atrial ablation procedures: the LAMP-AF study." (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.] I also saw your CIHR-funded project "Quantifying QRS fragmentation to improve patient selection for cardiac resynchronization therapy" (2021), and I would be glad to contribute to work in that direction. 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]

Vijay Chauhan

Research

Latest papers

Latest funding

Left atrial myopathy development and progression in atrial fibrillation patients with recurrent left atrial ablation procedures: the LAMP-AF study.

Isochronal Apparent Dispersion at Early Activation Sites Accurately Identifies Outflow Tract Ventricular Ectopy Sites.

Canadian national electrophysiology ablation registry report 2011–2016

Health Care Utilization After Ventricular Tachycardia Ablation: A Propensity Score-Matched Cohort Study.

Prevention of venous thrombosis after electrophysiology procedures: a survey of national practice

Resolving Bipolar Electrogram Voltages During Atrial Fibrillation Using Omnipolar Mapping.

Genetic Testing in Inherited Heart Diseases: Practical Considerations for Clinicians.

T-Wave Morphology Analysis in Congenital&#xa0;Long QT Syndrome Discriminates Patients From Healthy&#xa0;Individuals.

Evaluation of Prolonged QT Interval: Structural Heart Disease Mimicking Long QT Syndrome.

Usefulness of 14-Day Holter for Detection of Nonsustained Ventricular Tachycardia in Patients With Hypertrophic Cardiomyopathy.

Quantifying QRS fragmentation to improve patient selection for cardiac resynchronization therapy

Rotor Mapping in Human Atrial Fibrillation

Signal analysis of T-wave alternans for predicting sudden cardiac deaths

Arrhythmogenic Right Ventricular Cardiomyopathy: From Genes to Proteins, Cells, Tissues and Patients

Frequent collaborators

Kumaraswamy Nanthakumar

Jeff Healey

David Birnie

Mohammed Shurrab

David Birnie

Shubhayan Sanatani

Paul Dorian

Laurent Macle

Roopinder Sandhu

Jeff Healey

Jacqueline Joza

Nicholas Mitsakakis

Girish Nair

John Sapp

Ratika Parkash

Karthikeyan Umapathy

Marc Deyell

Derek Exner

Guy Amit

Damian Redfearn

Brenda Gerull

Vidal Essebag

T-Wave Morphology Analysis in Congenital Long QT Syndrome Discriminates Patients From Healthy Individuals.