Biography

Dr Gregory Szto is an Interventional Cardiologist with a broad skillset of specialty experience in pacing, heart failure, structural heart interventions, left atrial appendage occlusion, patent foramen ovale closures, and is also an Accredited TAVI Practitioner.

Gregory graduated from the Monash University with first-class honours and completed his advanced cardiology training at the Alfred Hospital in Melbourne. Following this, Greg tr Read More...

Procedures & Conditions

Procedures Performed
  • Alcohol Septal Ablation
  • Atrial Septal Defect (ASD) Closures
  • Balloon Aortic Valvuloplasty
  • Bicuspid Valve Replacement
  • Bifurcation Stenting
  • Biventricular Pacemaker Implantation
  • Cardiac Catheterisation
  • Cardiac Device Management
  • Cardiac Resynchronisation Therapy (CRT)
  • Chronic Total Occlusion
  • Defibrillator Implantation
  • Echocardiography
  • Fractional Flow Reserve and Pressure Wire
  • General Cardiology
  • Geriatric Cardiology
  • Holter Monitoring
  • Implantable Loop Recorder
  • Intra-Aortic Balloon Pump Insertion
  • Intravascular Ultrasound Imaging
  • Invasive Cardiology
  • Leadless Pacemaker Insertion
  • Left Atrial Appendage Closure Device (LAACD)
  • Pacemaker Implantation
  • Patent Foramen Ovale (PFO) Closures
  • Percutaneous Aortic Valve Procedures
  • Percutaneous Coronary Intervention (PCI)
  • Percutaneous Structural Heart Intervention
  • Perioperative Medicine
  • Pressure Wire Assessment of Coronary Artery Disease
  • Remote Cardiac Device Monitoring
  • Renal Nerve Denervation
  • Right Heart Catheterisation
  • Rotablator
  • Sub Q ICD Implantation
  • Transcatheter Aortic Valve Implantation (TAVI)
  • Transfemoral and Alternate Access TAVI
  • Valve in Valve TAVI Procedures
Conditions Treated
  • Acute Coronary Syndrome
  • Aortic Stenosis
  • Aortic Valve Disease
  • Arrhythmia Management
  • Atrial Fibrillation
  • Atrial Flutter
  • Atrial Tachycardia
  • AV Node Re-entry Tachycardia (AVNRT)
  • Bicuspid Valve
  • Bradycardia
  • Brugada Syndrome
  • Cardiac Disease
  • Cardiac Sarcoidosis
  • Cardiomyopathy
  • Chronic Heart Failure
  • Complete Heart Block
  • Coronary Artery Disease
  • Dilated Cardiomyopathy
  • Dyspnoea
  • General Cardiology
  • Heart Failure
  • Hyperlipidaemia
  • Hypertrophic Cardiomyopathy
  • Ischemic Cardiomyopathy
  • Junctional Tachycardia
  • Mitral Regurgitation
  • Mitral Valve Disease
  • Palpitations
  • Preventative Cardiology
  • Pulmonary Hypertension
  • Resistant Hypertension
  • Sick Sinus Syndrome
  • Sinus Node Dysfunction
  • Structural Heart Disease
  • Sudden Cardiac Death
  • Supraventricular Tachycardia (SVT)
  • Syncope
  • Valvular Heart Disease
  • Ventricular Ectopy
  • Ventricular Tachycardia
  • Wolff-Parkinsion-White Syndrome

Experience

  • Director of Cardiology
    Peninsula Private Hospital 2000 - Present
  • Visiting Cardiologist
    Peninsula Health (Frankston Hospital) 2000 - 2017
  • Senior Lecturer
    Monash University Present
  • Interventional Fellowship Indiana Heart Institute
    St Vincent's Hospital, Indianapolis, Indiana, USA 1996 - 1997
  • Research Fellowship
    Sharp Memorial Hospital, San Diego, California, USA 1996

Memberships & Awards

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

  • Fellow of the Cardiac Society of Australia and New Zealand (FCSANZ)

  • Fellow of the Society of Cardiovascular Angiography and Interventions (FSCAI)

  • Fellow of the American College of Cardiology (FACC)

Awards
  • 1989

    Australian Medical Association (AMA) Award for Top Student in Bachelor of Medicine, Bachelor of Surgery (MBBS)

  • 1988

    Sigma Prize in Paediatrics

  • 1988

    John Cade Memorial Medal in Psychiatry

  • 1987

    Jean Tolhurst Prize in Microbiology

Research & Publications

Publications and Abstracts

1. G. Szto, D. Kannar, V. O’Shea, T. Madmon. Clinical Effects of Sublingually Administered Rosuvastatin in Subjects Who Are Statin Intolerant (SARSI) Poster presented at the ACC, Orlando 2017.

2. H Hewageegana, R Tudball, S Vandergert, D Kannar, G Szto & JCG Doery. Development of a new sensitive HPLC-MS isotope dilution assay to evaluate nicotinic acid pharmacokinetics in human plasma. (Winning) Adelaide Poster Presentation 2014 Pathology Association Conference.

3. Szto G, Sharp D. Direct ambulance transfer from home to CCU significantly reduces door-to-balloon time of primary intervention in patients presenting with ST-segment elevation myocardial infarction. Poster presented at the Asia PCR Singapore LIVE January 2010 conference.

4. Szto G, O’Shea V, Hall G, Valerio L. Clinical Characteristics of Patients with Prior CABG as Determined by CT Coronary Angiography. Heart, Lung and Circulation, Volume 18, Supplement 3, 2009, Pages S24-S25

5. Szto G, O’Shea V, Hall G, Valerio L. Multi-slice Cardiac CT Angiographic and Clinical Findings in Diabetics vs. Non-diabetics. Heart, Lung and Circulation, Volume 18, Supplement 3, 2009, Page S38

6. Szto G, O’Shea V, Hall G, Valerio L. Cardiac CT Differences in Patients with Calcium Score 0 Vs. Small Amount of Coronary Calcium. Heart, Lung and Circulation, Volume 18, Supplement 3, 2009, Page S22

7. Szto, G, Watson A, O’Shea V, Valerio L. A Collaborative Cardiology/Radiology Approach to Multi-Slice Cardiac CT Scanning – Report of 1st Year Experience in Set-up, Scanning and Results. Heart, Lung and Circulation, Volume 17, Supplement 3, 2008, Page S65

8. C.C.S Lim*, A. Teh, L. Roberts, N. Andrianopoulos, C. Reid, D. Clark, G. Szto, A. Ajani, S. Duffy, G. New. On behalf of the Melbourne Interventional Group (MIG) Investigators. Door-to-balloon times – are we meeting the AHA/ACC guidelines? Results from an Australian multicenter registry. Journal of the American College of Cardiology 2008; Volume 51, Issue 10, Supplement 1, Pages A1-A466 (11 March 2008). 1024-51.A214

9. Jennifer M. Coller, Louise Roberts, Nick Andrianopoulos, Christopher Reid, Greg Szto, Edward Mah, Angela Brennan, Bryan Yan, Gishel New. On behalf of the Melbourne Interventional Group (MIG) Investigators. Door-to-Balloon Time—Results from a Multi-Centre Registry of Primary PCI in Acute ST-Elevation Myocardial Infarction (STEMI). Heart Lung and Circulation 2008;17S:S1-S209.431

10. Ronen Gurvitch, Andrew Ajani, Roderick Warren, Alexander Black, Stephen Duffy, Angela Brennan, David Clark, Greg Szto, Nick Andrianopoulos, Jeffrey Lefkovits . On behalf of the Melbourne Interventional Group (MIG) Investigators. Failed Percutaneous Coronary Intervention is Associated with High Mortality and Adverse Clinical Event Rates in a Large Patient Cohort. Heart Lung and Circulation 2008;17S:S1-S209.401

11. Michelle J Butler, James A. Shaw, Catherine Farrington, David J. Clark, Andrew E. Ajani, Gregory Szto, Nick Andrianopoulos, Angela Brennan, Gishel New, Alexander Black, Anthony M. Dart, Stephen J. Duffy. On behalf of the Melbourne Interventional Group (MIG) Investigators. The Impact of Diabetes Mellitus on Early and Late Mortality and Major Adverse Cardiac Events (MACE) after PCI with Drug-eluting Stents. Journal of the American College of Cardiology 2008; Volume 51, Issue 10, Supplement 1, Pages A1-A466 (11 March 2008). 1033-129.A263

12. J. Butler*, C. Farrington, J.A. Shaw, D.J. Clark, A.E. Ajani, G. Szto, N. Andrianopoulos, A. Brennan, G. New, A. Black, A.M. Dart, S.J. Duffy. On behalf of the Melbourne Interventional Group (MIG) Investigators. The impact of diabetes mellitus on early and late mortality and major adverse cardiac events after percutaneous coronary intervention with drug-eluting stents. Heart Lung and Circulation 2007;16S:S1-S201. 340

13. BP Yan*, AE Ajani, SJ Duffy , R Gurvitch, DJ Clark, A Brennan, G Szto, A Black, R Warren, C Reid, N Andrianopoulos, H Krum. On behalf of the Melbourne Interventional Group (MIG Investigators). Impact of Congestive Cardiac Failure on Outcomes after Percutaneous Coronary Interventions: An Analysis of the Melbourne Interventional Group (MIG) Registry. Heart Lung and Circulation 2007;16S:S1-S201. 43

14. Lim*, A. Teh, L. Roberts, M. Rowe, D. Fernando, N. Andrianopoulos, C. Reid, D. Clark, G. Szto, A. Ajani, S. Duffy, G. New. On behalf of the Melbourne Interventional Group (MIG Investigators). Door-to-balloon times – are we meeting the new Australian guidelines? Results from a multi-centre registry of primary PCI. Heart Lung and Circulation 2007;16S:S1-S201. 360

15. BP Yan*, AE Ajani, SJ Duffy, R Gurvitch, DJ Clark, A Brennan, G Szto, A Black, R Warren, C Reid, N Andrianopoulos, H Krum. On behalf of the Melbourne Interventional Group (MIG Investigators). Impact of Congestive Cardiac Failure on Outcomes after Percutaneous Coronary Interventions. European Heart Journal (2007) 28 (Abstract Supplement), 889–949.P4615

16. David J Clark*, Mark Horrigan, Bryan Yan, Thomas Yip, Gishel New, Greg Szto, Chris Reid, Andrew E Ajani and Stephen J Duffy. On behalf of the Melbourne Interventional Group (MIG) Investigators. Are drug-eluting stents (DES) indicated in large coronary arteries? Insights from a Australian, multi-centre percutaneous coronary intervention (PCI) registry. 2006;114:II_509. 2470

17. David Clark*, S. Duffy, B. Chan, Horrigan, O. Farouque, B. Yan, T. Yip, D. Eccleston, J. Shaw, G. New, G. Szto, A. Meehan, C. Reid and A. Ajani.  On behalf of the Melbourne Interventional Group (MIG) Investigators. Are drug-eluting stents (DES) indicated in large coronary arteries? Insights from a multi-centre Victorian percutaneous coronary intervention (PCI) registry. Heart Lung and Circulation 2006;15S:S1-S167. 356

18. David Clark*, S. Duffy, MCG. Horrigan, B. Chan, G Szto, O. Farouque, B. Yan, G. New, A. Black, A. Brennan, A. Meehan, C. Reid and A. Ajani.  On behalf of the Melbourne Interventional Group (MIG) Investigators. Sustainability of a large Australian multi-centre percutaneous coronary intervention (PCI) registry:  Outcomes of the first 2765 patients enrolled. Heart Lung and Circulation 2006;15S:S1-S167. 357

19. G Szto*, A. Ajani, D. Clark, D. Eccleston, T. Walton, S. Black, S. Duffy, C. Reid. On behalf of the Melbourne Interventional Group (MIG) Investigators. Long-term outcome after PCI in Victorian Public versus Private Hospitals: Impact of restricted use of drug-eluting stents in public hospitals. Heart Lung and Circulation 2006;15S:S1-S167. 386

20. B Yan*, A. Ajani, D. Clark, S. Duffy, R. Warren, R. Lew, M. Sebastian, G. Szto, D. Eccleston, A. Meehan and C. Reid. On behalf of the Melbourne Interventional Group (MIG) Investigators. A snapshot of current treatment of in-stent restenosis. Heart Lung and Circulation 2006;15S:S1-S167. 346

21. B Yan*, A. Ajani, W. Ahmar, G. New, S.Duffy, A. Walton, G. Szto, R. Warren, L. Ponnuthurai, A. Brennan, A. Meehan and C. Reid.  On behalf of the Melbourne Interventional Group (MIG) Investigators. Does Female Gender Impact on Contemporary Australian Coronary Interventional Practice? Heart Lung and Circulation 2006;15S:S1-S167. 336

22. SJ Duffy*, D. Clark, A. Ajani, A. Walton, T. Yip, B. Yan, Szto, G. New, A. Meehan, C. Reid and A. Dart. On behalf of the Melbourne Interventional Group (MIG) Investigators. Clinical outcomes after coronary stenting of small vessels using ≤2.5mm stents: results from the Melbourne Interventional Group (MIG) Registry. Heart Lung and Circulation 2006;15S:S1-S167. 365

23. Ajani AE, Szto G, Duffy SJ, Eccleston D, Clark DJ, Lefkovits J, Chew DP, Warren R, Black A, New G, Walton A, Lew R, Shaw J, Horrigan M, Sebastian M, Yan BP, Brennan A, Meehan A, Reid C, Krum H. The foundation and launch of the Melbourne Interventional Group: a collaborative interventional cardiology project. Heart Lung Circ. 2006;15:44-7.

24. Bryan P Yan, Andrew E Ajani, Stephen J Duffy, Gishel New, Mark Horrigan, Gregory Szto, Antony Walton, David Eccleston, Jeffery Lefkovits, Alexander Black, Martin Sebastian, Angela L Brennan, Christopher M Reid and David J Clark. On behalf of the Melbourne Interventional Group (MIG) investigators Use of drug-eluting stents in Victorian public hospitals. MJA • Volume 185 Number 7 • 2 October 2006.

25. David Clark*, S. Duffy, M. Horrigan, G. Szto, D. Eccleston, J. Lefkovits, J. Shaw, B. Yan, G. New, A. Walton, R. Lew, A. Brennan, A. Meehan,  C. Reid , H. Krum and A. Ajani. On behalf of the Melbourne Interventional Group (MIG) Investigators. Utilisation of drug-eluting versus bare metal stents in Victorian public hospitals. Heart Lung and Circulation 2005;14S:S1-S154.

26. Andrew Ajani*, D.J. Clark, J. Lefkovits, D. Eccleston, G. Szto, S.J. Duffy, J. Shaw, B Yan, P. Roy, S. Shetty, G. New, A.Walton, R. Lew, R. Warren, A. Brennan, and C. Reid. On behalf of the Melbourne Interventional Group (MIG) Investigators. What is contemporary treatment of in-stent restenosis? Heart Lung and Circulation 2005;14S:S1-S154. 326

27. David Clark*, S. Duffy, D. Eccleston, G. Szto, J. Lefkovits, J. Shaw, B. Yan, G. New, A. Walton, R. Lew,  A. Brennan, A. Meehan,  C. Reid, H. Krum and A. Ajani. On behalf of the Melbourne Interventional Group (MIG) Investigators. Outcomes after percutaneous coronary intervention in Victorian hospitals; results of the first 529 patients enrolled in a multi-centre registry. Heart Lung and Circulation 2005;14S:S1-S154. 322

28. G. Szto, D. Eccleston, D. Clark, A. Ajani, C. Reid, For MIG investigators, CCRE Therapeutics, Monash University, Melbourne, Vic. Does restricted use of drug-eluting stents affect long-term interventional outcome? Presented as a poster abstract at the CSANZ scientific meeting, Perth, Australia 2005.

29. Betty M. Williamson, Gregory Szto, Judith Bladen, Robert Templin, Wendy Dyble, Susan Evans-Murphy, Hugo Williams, Lynn Murdoch. A teaching package allows successful removal of femoral arterial sheaths by CCU nurses after percutaneous coronary intervention. Heart, Lung and Circulation, Volume 12, Issue 2, 2003, Pages A20-A21

30. Gregory Szto, Williamson, et al. Clinical Outcomes of a Coronary Interventional Program in a Hospital without On-site Cardiac Surgery. Heart, Lung and Circulation, Volume 12, Issue 2, 2003, Page A72.

More research publications available upon request. 

View More

Presentations

  • 2000 – Present: Invited Presenter for General Practitioners for organisations: Astra-Zeneca, Boehringer-Ingelheim, Bristol-Myers-Squibb, Merck-Sharp and Dohme, Pfizer, Roche, Sanofi-Aventis, Solvay Pharmaceuticals.

International Presentations:

  • 2001 – “Acute coronary syndromes: Lessons learned from recent Glycoprotein IIb/IIIa Trials” Malaysia
  • 2004 – “New Insights in the treatment of diabetic nephropathy” Malaysia
  • 2005 – “Optimising treatment in the diabetic hypertensive patient” Singapore
  • 2005 – “Coronary Intervention: The Basics” Miang Yang, China
  • 2006 – Evidence-based medicine, talks and live case demo. Beijing, China
  • 2006 – “Hypertension in Patients with Coronary Heart Disease” Malaysia
  • 2006 –  “Diabetes and Hypertension Impact on Target Organ Damage” Malaysia
View More

Related Articles

LATEST IN Interventional Cardiologist

As of the end of April, Australia and New Zealand…

LATEST IN Interventional Cardiologist

Coronavirus (COVID-19) was declared a pandemic by the World Health…

LATEST IN Interventional Cardiologist

9 News Sydney was part of many media outlets who…