Dr. Hari Sugumar is a specialist cardiologist and electrophysiologist completing his PhD through the University of Melbourne. He has been awarded the prestigious combined NHRMC-NHF research fellowship, RACP JJ Billings award for excellence and the Nick Christopher PhD Scholarship at RMH for 2017-2020.

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Dr Ramanathan Parameswaran is a specialist cardiologist and is currently a Research Fellow in Cardiac Electrophysiology and Pacing. His research studies involve understanding the mechanisms of persistent atrial fibrillation and the three dimensional activation characteristics of human atrium. His clinical research also focusses on the impact of catheter ablation on psychological distress and neurocognitive function in patients with atrial fibrillation.

Read more: Dr Ramanathan Parameswaran


Our Research

Melbourne Heart Rhythm has an international reputation as one of the centers of excellence in cardiac arrhythmia research in Australasia and the world.

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Our Team

Our friendly team are committed to providing excellence in patient care. They are all well qualified and knowledgeable about patients and their cardiac conditions.

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Learn More

To learn about common arrhythmias and our cardiac procedures, visit  our Cardiovascular Library for more information.

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About Us


Melbourne Heart Rhythm is the arrhythmia service at the Department of Cardiology at the Royal Melbourne Hospital. We are comprised of a team of highly trained and dedicated health care professionals specializing in heart rhythm management. We have a strong focus on patient education and patient centered care. Our arrhythmia specialists have an international reputation of excellence in arrhythmia research and clinical arrhythmia management.