Dr Ramanathan Parameswaran

• 2021 - PhD, The University of Melbourne
• 2020 - Grad Dip Cardiac EP, CEPIA
• 2015 - FRACP Cardiology
• 2010 - MD (Internal Medicine), Manipal Academy of Higher Education, India
• 2006 - MBBS, Sri Ramachandra Medical College & Research Institute, India

AWARDS:

• Graham Brown Publication Prize, The University of Melbourne (May 2021)
• Young Investigator Award, Asia-Pacific Heart Rhythm Society (Oct 2019)
• Best Oral Presentation, Melbourne Health (June 2019)

SCHOLARSHIPS:

• NHMRC Postgraduate Scholarship (2019)
• CSANZ Postgraduate Research Scholarship (2017)
• Indian Council of Medical Research Grant (2007)

PUBLICATIONS:

• Nalliah CJ, Wong GR, Lee G, Voskoboinik A, Kee K, Goldin J, Watts T, Linz D, Parameswaran R, Sugumar H, Prabhu S, McLellan A, Ling LH, Joseph SA, Morton JB, Kistler P, Sanders P, Kalman JM. Impact of CPAP on the Atrial Fibrillation Substrate in Obstructive Sleep Apnea: The SLEEP-AF Study. JACC Clin Electrophysiol. 2022 Jul;8(7):869-877. doi: 10.1016/j.jacep.2022.04.015. Epub 2022 Jun 29. PMID: 35863812.

• Wong GR, Nalliah CJ, Lee G, Voskoboinik A, Chieng D, Prabhu S, Parameswaran R, Sugumar H, Al-Kaisey A, McLellan A, Ling LH, Sanders P, Kistler PM, Kalman JM. Sex-Related Differences in Atrial Remodeling in Patients With Atrial Fibrillation: Relationship to Ablation Outcomes. Circ Arrhythm Electrophysiol.2022 Jan;15(1):e009925. doi: 10.1161/CIRCEP.121.009925. Epub 2021 Dec 23. PMID:34937397.

• Chieng D, Sugumar H, Ling LH, Segan L, Azzopardi S, Prabhu S, Al-Kaisey A, Voskoboinik A, Parameswaran R, Morton JB, Pathik B, McLellan AJ, Lee G, Wong M, Finch S, Pathak RK, Raja DC, Sanders P, Sterns L, Ginks M, Reid CM, Kalman JM, Kistler PM. Catheter ablation for persistent atrial fibrillation: A multicenter randomized trial of pulmonary vein isolation (PVI) versus PVI with posterior left atrial wall isolation (PWI) - The CAPLA study. Am Heart J. 2022.Jan;243:210-220. doi: 10.1016/j.ahj.2021.09.015. Epub 2021 Oct 4. PMID:34619143.

• Kistler PM, Chieng D, Tonchev IR, Sugumar H, Voskoboinik A, Schwartz LA, McLellan AJ, Prabhu S, Ling LH, Al-Kaisey A, Parameswaran R, Anderson RD, Lee G, Kalman JM. P-Wave Morphology in Focal Atrial Tachycardia: An Updated Algorithm to Predict Site of Origin. JACC Clin Electrophysiol. 2021 Dec;7(12):1547-1556. doi: 10.1016/j.jacep.2021.05.005. Epub 2021 Jun 30. PMID: 34217661.

• Nalliah CJ, Wong GR, Lee G, Voskoboinik A, Kee K, Goldin J, Watts T, Linz D, Wirth D, Parameswaran R, Sugumar H, Prabhu S, McLellan A, Ling H, Joseph S, Morton JB, Kistler P, Sanders P, Kalman JM. Sleep apnoea has a dose-dependent effect on atrial remodelling in paroxysmal but not persistent atrial fibrillation: a high-density mapping study. Europace. 2021 May 21;23(5):691-700. doi: 10.1093/europace/euaa275. PMID: 33447844.

• Sugumar H, Prabhu S, Costello B, Chieng D, Azzopardi S, Voskoboinik A, Parameswaran R, Wong GR, Anderson R, Al-Kaisey AM, Ling LH, Kotschet E, Taylor AJ, Kalman JM, Kistler PM. Catheter Ablation Versus Medication in Atrial Fibrillation and Systolic Dysfunction: Late Outcomes of CAMERA-MRI Study. JACC Clin Electrophysiol. 2020 Dec 14;6(13):1721-1731. doi: 10.1016/j.jacep.2020.08.019. Epub 2020 Oct 28. PMID: 33334453.

• Al-Kaisey AM, Parameswaran R, Kalman JM. Atrial Fibrillation Structural Substrates: Aetiology, Identification and Implications. Arrhythm Electrophysiol Rev. 2020 Nov;9(3):113-120. doi: 10.15420/aer.2020.19. PMID: 33240506; PMCID:PMC7675137.

• Wong GR, Nalliah CJ, Lee G, Voskoboinik A, Prabhu S, Parameswaran R, Sugumar H, Anderson RD, Ling LH, McLellan A, Johnson R, Sanders P, Kistler PM, Fatkin D, Kalman JM. Genetic Susceptibility to Atrial Fibrillation Is Associated With Atrial Electrical Remodeling and Adverse Post-Ablation Outcome. JACC Clin Electrophysiol. 2020 Nov;6(12):1509-1521. doi: 10.1016/j.jacep.2020.05.031. Epub 2020 Aug 26. PMID: 33213811.

• Al-Kaisey AM, Parameswaran R, Joseph SA, Kistler PM, Morton JB, Kalman JM. Extensive right atrial free wall low-voltage zone as the substrate for atrial fibrillation: successful ablation by scar homogenization. Europace. 2021 Jan 27;23(1):59-64. doi: 10.1093/europace/euaa233. PMID: 33141888.

• Anderson RD, Kumar S, Binny S, Prabhu M, Al-Kaisey A, Parameswaran R, Sugumar H, Chieng D, Hawson J, Campbell T, Joshi S, Lui E, Sparks PB, Joseph SA, Morton JB, McLellan A, Lipton J, Pathik B, Kistler PM, Kalman J, Lee G. Modified Precordial Lead R-Wave Deflection Interval Predicts Left- and Right-Sided Idiopathic Outflow Tract Ventricular  Arrhythmias. JACC Clin Electrophysiol. 2020 Oct 26;6(11):1405-1419. doi: 10.1016/j.jacep.2020.07.011. Epub 2020 Sep 30. PMID: 33121670.

• Parameswaran R, Al-Kaisey AM, Kalman JM. Catheter ablation for atrial fibrillation: current indications and evolving technologies. Nat Rev Cardiol. 2021 Mar;18(3):210-225. doi: 10.1038/s41569-020-00451-x. Epub 2020 Oct 13. PMID: 33051613.

• Parameswaran R, Lee G, Kalman JM. Reply to the Editor-Investigating sinoatrial node activation during sinus rhythm using phase mapping. Heart Rhythm. 2021 Feb;18(2):331-332. doi: 10.1016/j.hrthm.2020.10.006. Epub 2020 Oct
  10. PMID: 33049403.

• Parameswaran R, Kalman JM, Royse A, Goldblatt J, Larobina M, Watts T, Walters TE, Nalliah CJ, Wong G, Al-Kaisey A, Douglas Anderson R, Voskoboinik A, Sugumar H, Chieng D, Sanders P, Kistler PM, Gerstenfeld EP, Lee G. Endocardial-Epicardial Phase Mapping of Prolonged Persistent Atrial Fibrillation Recordings: High Prevalence of Dissociated Activation Patterns. Circ Arrhythm Electrophysiol. 2020 Aug;13(8):e008512. doi: 10.1161/CIRCEP.120.008512. Epub 2020 Jul 7. PMID: 32634027.

• Parameswaran R, Lee G, Morris GM, Royse A, Goldblatt J, Larobina M, Watts T, Nalliah CJ, Wong G, Al-Kaisey AM, Anderson RD, Voskoboinik A, Sugumar H, Chieng D, Sanders P, Kistler PM, Kalman JM. Simultaneous epicardial-endocardial mapping of the sinus node in humans with structural heart disease: Impact of overdrive suppression on sinoatrial exits. Heart Rhythm. 2020 Dec;17(12):2154-2163. doi: 10.1016/j.hrthm.2020.06.034. Epub 2020 Jul 2. PMID: 32622994.

• Chieng D, Lahiri A, Sugumar H, Al-Kaisey A, Parameswaran R, Anderson RD, Prabhu S, Ling LH, Morton JB, McLellan AJ, Lee G, Kalman JM, McGavigan AD, Kistler PM. Multipolar mapping with the high-density grid catheter compared with conventional point-by-point mapping to guide catheter ablation for focal arrhythmias. J Cardiovasc Electrophysiol. 2020 Sep;31(9):2288-2297. doi: 10.1111/jce.14636. Epub 2020 Jul 3. PMID: 32583514.

• Parameswaran R, Pathik B, Morton JB. Atrial Arrhythmias in Patients With an ASD: Where to From Here? JACC Clin Electrophysiol. 2020 May;6(5):549-551. doi: 10.1016/j.jacep.2020.01.012. PMID: 32439039.

• Parameswaran R, Kalman JM, Lee G. Coherent mapping: A step toward physiological mapping of complex arrhythmias? J Cardiovasc Electrophysiol. 2020 Jun;31(6):1448-1451. doi: 10.1111/jce.14455. Epub 2020 Apr 6. PMID: 32227544.

• Parameswaran R, Teuwen CP, Watts T, Nalliah CJ, Royse A, Goldblatt J, Larobina M, Sanders P, Kistler P, Orozco-Duque A, Lee G, Kalman JM. Functional Atrial Endocardial-Epicardial Dissociation in Patients With Structural Heart Disease Undergoing Cardiac Surgery. JACC Clin Electrophysiol. 2020 Jan;6(1):34-44. doi: 10.1016/j.jacep.2019.08.016. Epub 2019 Oct 30. PMID: 31971904.

• Sugumar H, Nanayakkara S, Chieng D, Wong GR, Parameswaran R, Anderson RD, Al-Kaisey A, Nalliah CJ, Azzopardi S, Prabhu S, Voskoboinik A, Lee G, McLellan AJ, Ling LH, Morton JB, Kalman JM, Kistler PM. Arrhythmia recurrence is more
  common in females undergoing multiple catheter ablation procedures for persistent atrial fibrillation: Time to close the gender gap. Heart Rhythm. 2020 May;17(5 Pt A):692-698. doi: 10.1016/j.hrthm.2019.12.013. Epub 2019 Dec 19.
  PMID: 31866381.

• Wong GR, Nalliah CJ, Lee G, Voskoboinik A, Prabhu S, Parameswaran R, Sugumar H, Anderson RD, McLellan A, Ling LH, Morton JB, Sanders P, Kistler PM, Kalman JM. Dynamic Atrial Substrate During High-Density Mapping of Paroxysmal and
  Persistent AF: Implications for Substrate Ablation. JACC Clin Electrophysiol. 2019 Nov;5(11):1265-1277. doi: 10.1016/j.jacep.2019.06.002. Epub 2019 Jul 31. PMID: 31753431.

• Sugumar H, Prabhu S, Voskoboinik A, Young S, Gutman SJ, Wong GR, Parameswaran R, Nalliah CJ, Lee G, McLellan AJ, Taylor AJ, Ling LH, Kalman JM, Kistler PM. Atrial Remodeling Following Catheter Ablation for Atrial Fibrillation-Mediated Cardiomyopathy: Long-Term Follow-Up of CAMERA-MRI Study. JACC Clin Electrophysiol. 2019 Jun;5(6):681-688. doi:
  10.1016/j.jacep.2019.03.009. Epub 2019 May 1. PMID: 31221354.

• Anderson RD, Kumar S, Parameswaran R, Wong G, Voskoboinik A, Sugumar H, Watts T, Sparks PB, Morton JB, McLellan A, Kistler PM, Kalman J, Lee G. Differentiating Right- and Left-Sided Outflow Tract Ventricular Arrhythmias: Classical ECG Signatures and Prediction Algorithms. Circ Arrhythm Electrophysiol. 2019 Jun;12(6):e007392. doi: 10.1161/CIRCEP.119.007392. Epub 2019 Jun 4. PMID: 31159581.

• Voskoboinik A, Moskovitch J, Plunkett G, Bloom J, Wong G, Nalliah C, Prabhu S, Sugumar H, Parameswaran R, McLellan A, Ling LH, Goh CY, Noaman S, Fernando H, Wong M, Taylor AJ, Kalman JM, Kistler PM. Cardioversion of atrial fibrillation
  in obese patients: Results from the Cardioversion-BMI randomized controlled trial. J Cardiovasc Electrophysiol. 2019 Feb;30(2):155-161. doi: 10.1111/jce.13786. Epub 2018 Nov 14. PMID: 30375104.

• Parameswaran R, Kalman JM, Savelieva I. APPLE score in atrial fibrillation: a simple solution to predict a complex process? Europace. 2019 Jan 1;21(1):1-2. doi: 10.1093/europace/euy157. PMID: 29992328.

• Parameswaran R, Kalman JM. Left Atrium and Cardiovascular Risk: Does Functionality Matter More Than Size? J Am Heart Assoc. 2018 Mar 30;7(7):e008930. doi: 10.1161/JAHA.118.008930. PMID: 29602765; PMCID: PMC5907607.

• Parameswaran R, Voskoboinik A, Gorelik A, Lee G, Kistler PM, Sanders P, Kalman JM. Clinical impact of rotor ablation in atrial fibrillation: a systematic review. Europace. 2018 Jul 1;20(7):1099-1106. doi: 10.1093/europace/eux370. PMID: 29340595.

• Khalafallah AA, Ibraheem AR, Teo QY, Albarzan AM, Parameswaran R, Hooper E, Pavlov T, Dennis AE, Hannan T. Review of Management and Outcomes in Women with Thrombophilia Risk during Pregnancy at a Single Institution. ISRN Obstet Gynecol. 2014 Feb 17;2014:381826. doi: 10.1155/2014/381826. PMID: 24693443; PMCID: PMC3945432.

• Parameswaran R, Sherchan JB, Varma D M, Mukhopadhyay C, Vidyasagar S. Intravascular catheter-related infections in an Indian tertiary care hospital. J Infect Dev Ctries. 2011 Jul 4;5(6):452-8. doi: 10.3855/jidc.1261. PMID: 21727644.

• Parameswaran R, Ramakrishnan B, Prabu M, Ramachandran B. An unusual cause for fever of unknown origin in a patient with a prosthetic valve. BMJ Case Rep. 2009;2009:bcr11.2008.1216. doi: 10.1136/bcr.11.2008.1216. Epub 2009 Jun 26. PMID: 21709841; PMCID: PMC3027500.