Biography

Dr Hari Sugumar is a Consultant Cardiologist and Electrophysiologist with a special interest in cardiac devices, such as cardiac re-synchronisation therapy and arrhythmia management.

He completed his medical degree at the University of Melbourne in 2005 and became a fellow of the Royal Australasian College of Physicians (FRACP) in 2010. Dr Sugumar specialised in Cardiology through Austin Health in Melbourne, Australia, where he sub-spec Read More...

Procedures & Conditions

Procedures Performed
  • Catheter Ablation
  • Electrophysiology Study
  • Implantable Loop Recorders
  • Cardiac Pacemakers
  • Cardiac Defibrillators
  • Cardiac Resynchronisation Therapy
  • Generator Change (Pacemaker/Defibrillators)
Conditions Treated
  • Atrial Fibrillation (AF)
  • Atrial Flutter
  • Supraventricular Tachycardias (SVT)
  • Ventricular Tachycardias (VT)
  • Premature Ventricular Complexes (PVC)
  • Bradycardia
  • Heart Block
  • Advanced Heart Failure (Requiring Cardiac Devices)

Experience

  • Consultant Cardiologist Electrophysiologist
    Alfred Health 2020 - Present
  • Consultant Cardiologist Electrophysiologist
    Ramsay Health Care 2020 - Present
  • Consultant Cardiologist Electrophysiologist
    Cabrini Health 2020 - Present
  • Electrophysiology PhD Fellow
    Alfred Health 2017 - 2020
  • Electrophysiology PhD Fellow
    The Royal Melbourne Hospital & NorthWestern Mental Health 2017 - 2020
  • Consultant Cardiologist Electrophysiologist
    Austin Health 2019

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Memberships

Professional Memberships and Affiliations
  • Fellow of the Royal Australasian College of Physicians (FRACP)

  • Australian Medical Association (AMA)

  • Asia Pacific Heart Rhythm Society (APHRS)

  • Cardiac Society of Australia and New Zealand (CSANZ)

Awards
  • 2020

    2020 Johnson & Johnson Medical Fellowship

  • 2019

    2020 Heart Rhythm SocietyTravel Scholarship

  • 2017 - 2019

    Uni Melbourne / RMH Nick Christopher Scholarship

  • 2017- 2019

    CRE-COI Scholarship

  • 2017 - 2019

    RACP JJ Billings Scholarship

  • 2017 - 2019

    NHMRC / NHF co-funded 3-year Scholarship

  • 2015 - 2016

    Medtronic and SJM Overseas Education Scholarship

Research & Publications

Publications

1. Al-kaisey, Ahmed & Parameswaran, Ramanathan & Bryant, Christina & Anderson, Robert & Hawson, Joshua & Chieng, David & Segan, Louise & Voskoboinik, Alex & Sugumar, Hariharan & Wong, Geoffrey & Finch, Sue & Joseph, Shary & Mclellan, Alex & Ling, Liang-Han & Morton, Joseph & Sparks, Paul & Sanders, Prashanthan & Lee, Geoffrey & Kistler, Peter & Kalman, Jonathan. (2023). Atrial Fibrillation Catheter Ablation vs Medical Therapy and Psychological Distress: A Randomized Clinical Trial. JAMA. 330. 925. 10.1001/jama.2023.14685.

2. Segan, Louise & Chieng, David & Sugumar, Hariharan & Voskoboinik, Alex & Ling, Liang-Han & Costello, Ben & Azzopardi, Sonia & Nderitu, Ziporah & Parameswaran, Ramanathan & Amerena, John & Mclellan, Alex & Lee, Geoffrey & Morton, Joseph & Joseph, Shary & Wong, Michael & Taylor, Andrew & Kalman, Jonathan & Kistler, Peter & Prabhu, Sandeep. (2023). The impact of age on ablation outcomes in AF-mediated cardiomyopathy. Journal of cardiovascular electrophysiology. 10.1111/jce.16052.

3. Chieng, David & Sugumar, Hariharan & Hunt, Andrew & Ling, Liang-Han & Segan, Louise & Al-Kaisey, Ahmed & Hawson, Joshua & Prabhu, Sandeep & Voskoboinik, Alex & Wong, Geoffrey & Morton, Joseph & Lee, Geoffrey & Ginks, Matthew & Sterns, Laurence & Sanders, Prashanthan & Kalman, Jonathan & Kistler, Peter. (2023). Impact of Posterior Left Atrial Voltage on Ablation Outcomes in Persistent Atrial Fibrillation. JACC: Clinical Electrophysiology. 10.1016/j.jacep.2023.08.002.

4. Segan, Louise & Chieng, David & Prabhu, Sandeep & Hunt, Andrew & Watts, Troy & Klys, Brian & Voskoboinik, Alex & Sugumar, Hariharan & Ling, Liang-Han & MBChD, Geoff & Morton, Joseph & Pathak, Rajeev & Raja, Deepchandh & Sterns, Laurence & Ginks, Matthew & Sanders, Prashanthan & Kalman, Jonathan & Kistler, Peter. (2023). Posterior Wall Isolation Improves Outcomes for Persistent AF With Rapid Posterior Wall Activity: A CAPLA Substudy. JACC: Clinical Electrophysiology. 10.1016/j.jacep.2023.08.018.

5. Segan, Louise & Canovas, Rodrigo & Nanayakkara, Shane & Chieng, David & Prabhu, Sandeep & Voskoboinik, Alex & Sugumar, Hariharan & Ling, Liang-Han & Lee, Geoff & Morton, Joseph & LaGerche, Andre & Kaye, David & Sanders, Prashanthan & Kalman, Jonathan & Kistler, Peter. (2023). New-onset atrial fibrillation prediction: the HARMS2-AF risk score. European heart journal. 10.1093/eurheartj/ehad375.

6. Segan, Louise & Nanayakkara, Shane & Spear, Ella & Shirwaiker, Anita & Chieng, David & Prabhu, Sandeep & Sugumar, Hariharan & Ling, Liang-Han & Kaye, David & Kalman, Jonathan & Voskoboinik, Alex & Kistler, Peter. (2023). Identifying Patients at High Risk of Left Atrial Appendage Thrombus Before Cardioversion: The CLOTS‐AF Score. Journal of the American Heart Association. 12. 10.1161/JAHA.122.029259.

7. Chieng, David & Sugumar, Hariharan & Hunt, Andrew & Ling, Liang-Han & Segan, Louise & Al-Kaisey, Ahmed & Hawson, Joshua & Prabhu, Sandeep & Voskoboinik, Alex & Wong, Geoffrey & Morton, Joseph & Lee, Geoffrey & Sterns, Laurence & Sanders, Prashanthan & Kalman, Jonathan & Kistler, Peter. (2023). AB-452663-1 THE IMPACT OF LOW POSTERIOR LEFT ATRIAL WALL VOLTAGE ON THE OUTCOMES OF CATHETER ABLATION FOR PERSISTENT ATRIAL FIBRILLATION: A CAPLA RANDOMIZED CLINICAL TRIAL SUBSTUDY. Heart Rhythm. 20. S50-S51. 10.1016/j.hrthm.2023.03.305.

8. Chieng, David & Sugumar, Hariharan & Hunt, Andrew & Ling, Liang-Han & Segan, Louise & Al-Kaisey, Ahmed & Hawson, Joshua & Prabhu, Sandeep & Voskoboinik, Alex & Wong, Geoffrey & Morton, Joseph & Lee, Geoffrey & Sterns, Laurence & Sanders, Prashanthan & Kalman, Jonathan & Kistler, Peter. (2023). AB-452663-1 THE IMPACT OF LOW POSTERIOR LEFT ATRIAL WALL VOLTAGE ON THE OUTCOMES OF CATHETER ABLATION FOR PERSISTENT ATRIAL FIBRILLATION: A CAPLA RANDOMIZED CLINICAL TRIAL SUBSTUDY. Heart Rhythm. 20. S50-S51. 10.1016/j.hrthm.2023.03.305.

9. Chieng, David & Sugumar, Hariharan & Ling, Liang-Han & Segan, Louise & Al-Kaisey, Ahmed & Hawson, Joshua & Prabhu, Sandeep & Voskoboinik, Alex & Wong, Geoffrey & Morton, Joseph & Lee, Geoffrey & Sanders, Prashanthan & Kalman, Jonathan & Kistler, Peter. (2023). AB-452643-4 EFFECTS OF ADDING POSTERIOR WALL ISOLATION TO PULMONARY VEIN ISOLATION IN PERSISTENT ATRIAL FIBRILLATION AND HEART FAILURE WITH REDUCED EJECTION FRACTION (HFREF). Heart Rhythm. 20. S38. 10.1016/j.hrthm.2023.03.276.

10. Segan, Louise & Chieng, David & Watts, Troy & Prabhu, Sandeep & Ling, Liang-Han & Sugumar, Hariharan & Voskoboinik, Alex & Lee, Geoffrey & Kalman, Jonathan & Kistler, Peter. (2023). PO-01-162 INFLUENCE OF POSTERIOR WALL ACTIVITY ON AF ABLATION OUTCOMES: A CAPLA SUBSTUDY. Heart Rhythm. 20. S174. 10.1016/j.hrthm.2023.03.553.

11. Chieng, David & Sugumar, Hariharan & Ling, Liang-Han & Segan, Louise & Al-Kaisey, Ahmed & Hawson, Joshua & Prabhu, Sandeep & Voskoboinik, Alex & Wong, Geoffrey & Morton, Joseph & Lee, Geoffrey & Sanders, Prashanthan & Kalman, Jonathan & Kistler, Peter. (2023). PO-455617-16 EFFECTS OF ADDING POSTERIOR WALL ISOLATION TO PULMONARY VEIN ISOLATION IN PERSISTENT ATRIAL FIBRILLATION AND HEART FAILURE WITH REDUCED EJECTION FRACTION (HFREF). Heart Rhythm. 20. S732-S733. 10.1016/j.hrthm.2023.03.1516.

12. Segan, Louise & Chieng, David & Watts, Troy & Prabhu, Sandeep & Ling, Liang-Han & Sugumar, Hariharan & Voskoboinik, Alex & Lee, Geoffrey & Kalman, Jonathan & Kistler, Peter. (2023). PO-455617-19 INFLUENCE OF POSTERIOR WALL ACTIVITY ON AF ABLATION OUTCOMES: A CAPLA SUBSTUDY. Heart Rhythm. 20. S734. 10.1016/j.hrthm.2023.03.1519.

13. Segan, Louise & Chieng, David & Sugumar, Hariharan & Voskoboinik, Alex & Ling, Liang-Han & Kalman, Jonathan & Kistler, Peter & Prabhu, Sandeep. (2023). PO-02-135 DOES LA SIZE PREDICT OUTCOMES IN AF AND SYSTOLIC HEART FAILURE?. Heart Rhythm. 20. S288. 10.1016/j.hrthm.2023.03.1543.

14. Al-kaisey, Ahmed & Parameswaran, Ramanathan & Bryant, Christina & Anderson, Robert & Hawson, Joshua & Chieng, David & Voskoboinik, Alex & Sugumar, Hariharan & West, Danielle & Azzopardi, Sonia & Finch, Sue & Wong, Geoffrey & Joseph, Shary & Mclellan, Alex & Ling, Liang-Han & Sanders, Prashanthan & Lee, Geoffrey & Kistler, Peter & Kalman, Jonathan. (2023). Impact of Catheter Ablation on Cognitive Function in Atrial Fibrillation. JACC: Clinical Electrophysiology. 9. 10.1016/j.jacep.2023.02.020.

15. Chieng, David & Sugumar, Hariharan & Segan, Louise & Tan, Caleb & Vizi, Donna & Nanayakkara, Shane & Al-Kaisey, Ahmed & Hawson, Joshua & Prabhu, Sandeep & Voskoboinik, Alex & Finch, Sue & Morton, Joseph & Lee, Geoffrey & Mariani, Justin & La Gerche, Andre & Taylor, Andrew & Howden, Erin & Kistler, Peter & Kalman, Jonathan & Ling, Liang-Han. (2023). Atrial Fibrillation Ablation for Heart Failure With Preserved Ejection Fraction. JACC: Heart Failure. 11. 10.1016/j.jchf.2023.01.008.

16. Al-Kaisey, Ahmed & Wong, Geoffrey & Young, Paul & Chieng, David & Hawson, Joshua & Anderson, Robert & Sugumar, Hariharan & Nalliah, Chrishan & Prabhu, Mukund & Johnson, Renee & Soka, Magdalena & Tarr, Ingrid & Bakshi, Andrew & Yu, Chenglong & Lacaze, Paul & Giannoulatou, Eleni & Mclellan, Alex & Lee, Geoffrey & Kistler, Peter & Kalman, Jonathan. (2023). Polygenic Risk Scores are Associated with Atrial Electrophysiologic Substrate Abnormalities and Outcomes Following Atrial Fibrillation Catheter Ablation. Heart Rhythm. 20. 10.1016/j.hrthm.2023.02.011.

17. William, Jeremy & Xiao, Xiaoman & Shirwaiker, Anita & Hc, Patel & Prabhu, Sandeep & Lh, Ling & Sugumar, Hariharan & Mariani, Justin & Kistler, Peter & Voskoboinik, Alex. (2023). Diagnostic evaluation of unexplained ventricular tachyarrhythmias in younger adults. Journal of Cardiovascular Electrophysiology. 34. 10.1111/jce.15868.

18. William, Jeremy & X, Xiao & A, Shirwaiker & Patel, Hitesh & Prabhu, Sandeep & Ling, Liang-Han & Sugumar, Hariharan & Mariani, Justin & Kistler, Peter & Voskoboinik, Alex. (2022). Diagnostic evaluation of unexplained ventricular tachyarrhythmias in younger adults. 10.22541/au.166961343.35242593/v1.

19. Chieng, David & Segan, Louise & Sugumar, Hariharan & Al-Kaisey, Ahmed & Hawson, Joshua & Moore, Benjamin & Nam, Michael & Voskoboinik, Alex & Prabhu, Sandeep & Ling, Liang-Han & Ng, Jer & Brown, Gregor & Lee, Geoffrey & Morton, Joseph & Debinski, Henry & Kalman, Jonathan & Kistler, Peter. (2022). Higher power short duration vs. lower power longer duration posterior wall ablation for atrial fibrillation and oesophageal injury outcomes: a prospective multi-centre randomized controlled study (Hi-Lo HEAT trial). Europace. 25. 10.1093/europace/euac190.

20. Chieng, David & Sugumar, Hariharan & Segan, Louise & Al-kaisey, Ahmed & Hawson, Joshua & Prabhu, Sandeep & Voskoboinik, Alex & Morton, J & Lee, Geoffrey & Mariani, Justin & La Gerche, Andre & Kistler, Peter & Kalman, J & Kaye, D & Ling, Liang-Han. (2022). Catheter ablation in atrial fibrillation and heart failure with preserved ejection fraction improves peak pulmonary capillary wedge pressure, exercise capacity and quality of life: RCT STALL HFpEF. European Heart Journal. 43. 10.1093/eurheartj/ehac544.607.

21. Segan, Louise & Nanayakkara, Shane & Spear, E & Shirwaiker, A & Chieng, David & Sugumar, Hariharan & Ling, Liang-Han & Prabhu, Sandeep & Lee, Geoffrey & Morton, Joseph & Kalman, J & Voskoboinik, Alex & Kistler, Peter. (2022). Clinical risk prediction for left atrial appendage thrombus among patients with atrial fibrillation. European Heart Journal. 43. 10.1093/eurheartj/ehac544.568.

22. Segan, Louise & Canovas, R & Nanayakkara, Shane & Chieng, David & Prabhu, Sandeep & Ling, Liang-Han & Voskoboinik, Alex & Sugumar, Hariharan & Lee, Geoffrey & Morton, Joseph & Kalman, J & Kistler, Peter. (2022). Development and validation of the HARMS2-AF lifestyle risk score to predict incident AF. European Heart Journal. 43. 10.1093/eurheartj/ehac544.2278.

23. Chieng, David & Canovas, Rodrigo & Segan, Louise & Sugumar, Hariharan & Voskoboinik, Alex & Prabhu, Sandeep & Ling, Liang-Han & Lee, Geoffrey & Morton, Joseph & Kaye, David & Kalman, Jonathan & Kistler, Peter. (2022). The impact of coffee subtypes on incident cardiovascular disease, arrhythmias, and mortality: long-term outcomes from the UK Biobank. European Journal of Preventive Cardiology. 29. 10.1093/eurjpc/zwac189.

24. Al-kaisey, Ahmed & Parameswaran, Ramanathan & Anderson, Robert & Chieng, David & Hawson, Joshua & Voskoboinik, Alex & Sugumar, Hariharan & Wong, Geoffrey & West, D. & Azzopardi, Sonia & Joseph, Shary & McLellan, A. & Ling, Liang-Han & Bryant, C. & Finch, S. & Sanders, P. & Lee, Geoffrey & Kistler, Peter & Kalman, J.. (2022). Randomised Evaluation of the Impact of Catheter Ablation on Cognitive Function in Atrial Fibrillation. Heart, Lung and Circulation. 31. S128-S129. 10.1016/j.hlc.2022.06.187.

25. Al-kaisey, Ahmed & Parameswaran, Ramanathan & Anderson, Robert & Hawson, Joshua & Nam, Michael & Sugumar, Hariharan & Chieng, David & Watts, Troy & Mclellan, Alex & Kistler, Peter & Lee, Geoffrey & Kalman, Jonathan. (2022). Insights From Simultaneous Left and Right Atrial Septal Mapping in Patients With Persistent Atrial Fibrillation. JACC. Clinical electrophysiology. 8. 970-982. 10.1016/j.jacep.2022.04.014.

26. Nalliah, Chrishan & Wong, Geoffrey & Lee, Geoffrey & Voskoboinik, Alex & Kee, Kirk & Goldin, Jeremy & Watts, Troy & Linz, Dominik & Parameswaran, Ramanathan & Sugumar, Hariharan & Prabhu, Sandeep & Mclellan, Alex & Ling, Liang-Han & Joseph, Shary & Morton, Joseph & Kistler, Peter & Sanders, Prashanthan & Kalman, Jonathan. (2022). Impact of CPAP on the Atrial Fibrillation Substrate in Obstructive Sleep Apnea: The SLEEP-AF Study. JACC. Clinical electrophysiology. 8. 869-877. 10.1016/j.jacep.2022.04.015.

27. Chieng, David & Canovas, Rodrigo & Segan, Louise & Sugumar, Hariharan & Voskoboinik, Alex & Prabhu, Sandeep & Ling, Liang-Han & Lee, Geoffrey & Morton, Joseph & Kalman, Jonathan & Kistler, Peter. (2022). CE-544-04 HABITUAL COFFEE CONSUMPTION AND INCIDENCE OF ARRHYTHMIAS: A LARGE POPULATION STUDY. Heart Rhythm. 19. S96. 10.1016/j.hrthm.2022.03.770.

28. Chieng, David & Sugumar, Hariharan & Segan, Louise & Al-Kaisey, Ahmed & Moore, Benjamin & Nam, Michael & Prabhu, Sandeep & Voskoboinik, Alex & Ling, Liang-Han & Kalman, Jonathan & Kistler, Peter. (2022). CA-535-02 HIGH POWER SHORT DURATION (HPSD) VERSUS LOWER POWER LONGER DURATION (LPLD) ATRIAL FIBRILLATION ABLATION: A PROSPECTIVE MULTICENTRE RANDOMISED CONTROLLED STUDY. THE HI-LO HEAT STUDY. Heart Rhythm. 19. S75. 10.1016/j.hrthm.2022.03.728.

29. Chieng, David & Sugumar, Hariharan & Canovas, Rodrigo & Segan, Louise & Ling, Liang-Han & Voskoboinik, Alex & Al-Kaisey, Ahmed & Lee, Geoffrey & Prabhu, Sandeep & Morton, Joseph & Kalman, Jonathan & Kistler, Peter. (2022). PO-668-04 IMPACT OF DECAFFEINATED, GROUND AND INSTANT COFFEE SUBTYPES ON THE INCIDENCE OF ARRHYTHMIAS: LONG TERM OUTCOMES FROM THE UK BIOBANK. Heart Rhythm. 19. S313. 10.1016/j.hrthm.2022.03.390.

30. Chieng, David & Canovas, Rodrigo & Segan, Louise & Sugumar, Hariharan & Voskoboinik, Alex & Prabhu, Sandeep & Ling, Liang-Han & Lee, Geoffrey & Morton, Joseph & Kalman, Jonathan & Kistler, Peter. (2022). BS-400-09 HABITUAL COFFEE CONSUMPTION AND INCIDENCE OF ARRHYTHMIAS: A LARGE POPULATION STUDY. Heart Rhythm. 19. S513-S514. 10.1016/j.hrthm.2022.03.1209.

More research publications are available upon request.

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