Profile

• Sep 1989- Jun 1995: Medical School, National and Kapodistrian University of Athens, Greece.
• Oct 1996 - May 1997: Resident in Internal Medicine, 2nd Department of Internal Medicine, 251 Air Force General Hospital, Athens, Greece. 
• Oct 1998 - Jun 2000: Resident in Internal Medicine, 1st Department of Internal Medicine, NIMTS Hospital, Athens, Greece.
• Aug 2000 - Aug 2004: Resident in Cardiology, 2nd Department of Cardiology, Hellenic Red Cross Hospital, Athens, Greece.
• Sep 2004: Certified cardiologist, Prefecture of Athens 
• Sep 2004: Accreditation in Echocardiography, Hellenic Ministry of Health 
• Jun 2006: Accreditation Diploma in Cardiac Pacing and ICSs, European Society of Cardiology 
• Sep 2006 - Jan 2007: Clinical and Research Fellow in interventional electrophysiology, Department of Arrhythmology, San Raffaele Hospital, Milan, Italy. Director: Carlo Pappone. Specialized in transseptal catheterization and AF ablation via manual and robotic magnetic navigation.
• Jun 2012: Certified as Pacemaker and ICD implanting Physician in Athens Bioclinic Hospital from the Central Health Council (KESY), Hellenic Ministry of Health.
• Apr 2023: Certified as Pacemaker and ICD implanting Physician in IASO Hospital from the Central Health Council (KESY), Hellenic Ministry of Health.

“ELECTROPHYSIOLOGICAL EVALUATION AND TREATMENT OF ATRIAL TACHYCARDIAS OCCURRED AFTER ATRIAL FIBRILLATION ABLATION”, Medical School, 2nd Department of Cardiology, Aristotle University of Thessaloniki, Thessaloniki, Greece. 

List in reverse chronological order

• Dec 2021 - present: Director, Heart Rhythm Center & 3rd Department of Cardiology, Iaso Hospital, Athens, Greece.
• Apr 2012 – Dec 2021: Director, Heart Rhythm Center, Athens Bioclinic (Bioiatriki Healthcare Group), Athens, Greece.
• Oct 2007 – Apr 2012: Clinical Lead, Electrophysiology Unit, “Henry Dunant” Hospital, Athens.
• Feb 2007 – Jun 2011: Clinical and Research Fellow in Catheter Ablation, 2nd Dept. of Cardiology, Aristotle University of Thessaloniki, Greece.
• Jan 2007 – Jan 2008: Director of Electrophysiology (EP) Department, Metropolitan Hospital, Athens, Greece.
• Sep 2006 – Jan 2007: Clinical and Research Fellow, Dept. of Arrhythmology, San Raffaele Hospital, Milan, Italy.
• Mar 2005 – Aug 2006: Attending Cardiologist, Dept. of Cardiology, Metropolitan Hospital, Athens, Greece.
• Sep 2004 – Aug 2006: Clinical and Research Fellow in EP and Pacing, 1st University Cardiology Dept., Hippokration General Hospital, Athens, Greece.
• Aug 1997 – Sep 1998: General Practitioner, Health Care Unit of Karperon, Grevena (Compulsory Civil Service).
• Sep 1995 – May 1997: Military Service, Hellenic Air Force (Staff Physician for 10 months).

• Professional Profile: Specialization in the advanced diagnosis and treatment of cardiac arrhythmias, cardiac pacing, and the implantation of ICD and CRT systems.
• Leadership: Director of the Heart Rhythm Center and the 3rd Department of Cardiology at IASO Hospital, Athens. The center is officially recognized in national registries as a premier electrophysiology laboratory, managing an extensive annual volume of high-complexity cases.
• Clinical & Interventional Experience: Over 15,000 procedures performed to date, encompassing:
  • Electrophysiological (EP) studies and complex catheter ablations.
  • Cardiac Rhythm Management (CRM) device implantations (pacemakers, defibrillators, biventricular systems, conduction system pacing).
  • Left Atrial Appendage Closure (LAAC) procedures.
• Complex Arrhythmia Management: Extensive track record since 2002 in performing complex ablation procedures (Atrial Fibrillation, Ventricular Tachycardia, etc.) utilizing advanced techniques aligned with internationally recognized standards of clinical efficacy.
• International Proctoring & Consultation: Regularly invited for expert consultation and proctoring of interventional procedures in healthcare institutions across Greece and abroad. Key assignments include: 
  • Consultation and Proctoring in CRT implantation. Nicosia General Hospital, Nicosia, Cyprus 2006
  • Consultation and Proctoring in SVT and AF ablation. Tripoli Central Hospital, Tripoli, Libya, December 2008
  • Consultation and Proctoring in complex ablation procedures. Kobry El Kobba Military Hospital, Cairo, Egypt, September 2011
  • Consultation and Proctoring in complex ablation procedures. Kobry El Kobba Military Hospital, Cairo, Egypt, December 2011.
  • Consultation and Proctoring in Atrial Fibrillation Ablation with Pulsed Field Ablation (Farawave Catheter, Boston Scientific), Nicosia General Hospital, Nicosia, Cyprus, December 2023.
  • Consultation and Proctoring in Atrial Fibrillation Ablation with Pulsed Field Ablation (Farawave Catheter, Boston Scientific), Nicosia General Hospital, Nicosia, Cyprus, June 2024.

List in reverse chronological order

• Gold Award in Healthcare Business Awards 2023 for the Innovative Treatment of Atrial Fibrillation with Pulsed Field Ablation, Athens, October 23, 2023.
• Honorary Distinction from the "Journal of Arrhythmia" and Wiley publishing company for the original article "Incidence, electrophysiological characteristics, and long-term follow-up of perimitral atrial flutter in patients with previously confirmed mitral isthmus block" as Top Cited Article 2021-2022 (work published between 1 January 2021 - 15 December 2022) (2023).
• Honorary Abbott Award for reaching the milestone of using 1000 EnSite Precision cases (2022).
• Honorary Clinical and Research Grant from Biosense Webster for training in cardiac electrophysiology at San Raffaele Hospital, Milan, Italy (2006).
• 1^st Place Award from the Working Group on Pacing and Electrophysiology for the study: “The role of right atrial posterior wall in the re-entrant circuit of isthmus dependent atrial flutter.” (2003).
• 1^st Place Award from the Working Group on Invasive and Interventional Cardiology for the study: “The role of eptifibatide in patients with acute coronary syndromes and intracoronary thrombus” (2003).

List in reverse chronological order

• Ioannidis P , Gerontitis D, Tsonona V, Charalambopoulos P, Samara D, Vassilopoulos A, Kouvelas K, Christoforatou E, Katsaras D. Combined Pulsed Field and Radiofrequency Ablation for Coexisting Atrial Tachycardia During or After Atrial Fibrillation Ablation. Interventional and Clinical Outcomes. J Cardiovasc Electrophysiol. 2026 Aug;37(8):1643-1655. doi: 10.1111/jce.70389. Epub 2026 Jun 1. PMID: 42226476. e-Link
• Gerontitis D, Katsaras D, Katsivas A, Ioannidis P. Feasibility of atrial fibrillation ablation via right internal jugular access using a lattice-tip pulsed field ablation system in the presence of inferior vena cava aplasia: first clinical experience. Eur Heart J Case Rep. 2026 Jul 17;10(7):ytag541. doi: 10.1093/ehjcr/ytag541. PMID: 42516942; PMCID: PMC13402575.  e-Link 
• Gerontitis D, Katsaras D, Tsonona V, Christoforatou E, Katsivas A, Ioannidis P. Successful isolation of arrhythmogenic superior vena cava via balloon-in-basket pulsed field ablation: Overcoming phrenic nerve proximity. HeartRhythm Case Rep. 2026 Jun 12;12(8):878-882. doi: 10.1016/j.hrcr.2026.06.007. PMID: 42626343; PMCID: PMC13492416. e-Link
• Ioannidis P , Gerontitis D, Katsaras D, Tsonona V, Charalambopoulos P, Samara D, Vassilopoulos A, Kouvelas K, Christoforatou E, Katsivas A. Hybrid Pentaspline Pulsed-Field and Radiofrequency Ablation for Left Atrial Mitral Isthmus Block: Acute and Long-term Outcomes. Heart Rhythm O2. 2026; in press. doi: 10.1016/j.hroo.2026.04.028. e-Link  
• Gerontitis D, Katsaras D, Tsonona V, Charalampopoulos P, Kouvelas K, Samara D, Christoforatou E, Ioannidis P. Mitral Isthmus Ablation - Radiofrequency, Pulsed Field Ablation or Both? Acute and Long-term Outcomes [abstract]. Europace. 2026;28(Suppl 1):euag105.182. doi:10.1093/europace/euag105.182. e-Link
• Ioannidis P , Katsaras D, Zografos T, Charalambopoulos P, Kouvelas K, Tsitsinakis G, Kappou T, Zagoraios A, Ganas P, Vassilopoulos A, Xylakis E, Christoforatou E. Box lesion isolation of the left atrial posterior wall with radiofrequency ablation restricted in predetermined lines for the treatment of persistent atrial fibrillation. The prognostic role of acute interventional outcome and trigger identification. J Innov Card Rhythm Manag. 2023 Nov 15;14(11):5642-5653. doi: 10.19102/icrm.2023.14115. PMID: 38058389; PMCID: PMC10697114. e-Link  
• Vassilikos VP, Giannopoulos G, Billis A, Efremidis M, Andrikopoulos G, Katsivas A, Kossyvakis C, Kallergis E, Letsas K, Kanoupakis E, Ioannidis P, Tzeis S, Deftereos S, Tsiachris D, Theodorakis G, Maounis T, Lysitsas D, Chatzinikolaou E, Fragakis N, Paraskevaidis S, Mezilis N, Kourouklis S, Pastromas S, Apostolopoulos T, Avramidis D, Chatzidou S, Papagiannis I, Kostopoulou A, Symeonidou E, Rassias I, Mantziari L, Leventopoulos G, Kourgiannidis G, Stavropoulos G, Katritsis D, Chiladakis I, Xydonas S, Ginos C, Kotsakis A, Baltogiannis G, Manolis AS, Sideris S, Gatzoulis K. Effect of the COVID-19 pandemic on cardiac electrophysiological ablation procedures in Greece - data from the Hellenic Society of Cardiology Ablation Registry. Hellenic J Cardiol. 2022 Jul 7:S1109-9666(22)00095-1. doi: 10.1016/j.hjc.2022.07.002. Epub ahead of print. PMID: 35811060. e-Link  
• Ioannidis P , Zografos T, Christoforatou E, Kouvelas K, Tsoumeleas A, Vassilopoulos C. The Electrophysiology of Atrial Fibrillation: From Basic Mechanisms to Catheter Ablation. Cardiol Res Pract. 2021 Jun 5;2021:4109269. doi: 10.1155/2021/4109269. PMID: 34194824; PMCID: PMC8203364. e-Link
• Ioannidis P , Christoforatou E, Zografos T, Charalambopoulos P, Kouvelas K, Christoulas G, Syros P, Tsitsinakis G, Kappou T, Tsoumeleas A, Floros S, Tagoulis D, Ntarladimas I, Tagoulis I, Avzotis D, Manolis AS, Vassilopoulos C. Incidence, electrophysiological characteristics, and long-term follow-up of perimitral atrial flutter in patients with previously confirmed mitral isthmus block. J Arrhythm. 2021 May 12;37(3):584-596. doi: 10.1002/joa3.12545. PMID: 34141011; PMCID: PMC8207388. e-Link
• Ioannidis P , Christoforatou E, Zografos T, Kouvelas K, Tsoumeleas A, Floros S, Kappou T, Vassilopoulos C. Ventricular ectopy from the non-coronary cusp: Pathophysiological and anatomical considerations. Indian Pacing Electrophysiol J. 2021 Apr 19:S0972-6292(21)00059-0. doi: 10.1016/j.ipej.2021.04.005. Epub ahead of print. PMID: 33887363. e-Link
• Ioannidis P , Zografos T, Vassilopoulos C, Christoforatou E, Kouvelas K, Kappou T, Dadous G, Skeberis V, Fragakis N, Vassilikos V, Sakadamis G, Kanonidis I. The evolution of mapping and ablation techniques in the treatment of atrial tachycardias occurring after atrial fibrillation ablation. J Interv Card Electrophysiol. 2021 Apr;60(3):493-511. doi: 10.1007/s10840-020-00759-1. Epub 2020 May 13. PMID: 32405890. e-Link
• Vassilikos VP, Billis A, Efremidis M, Theodorakis G, Andrikopoulos G, Defteraios S, Katsivas A, Mouselimis D, Tsarouchas A, Baniotopoulos P, Kossyvakis C, Kanoupakis E, Ioannidis P, Fragakis N, Chatzinikolaou E, Maounis T, Paraskevaidis S, Gatzoulis K, Katritsis D, Lysitsas D, Apostolopoulos T, Manolis A, Avramidis D, Chatzidou S, Livanis E, Papagiannis I, Leftheriotis D, Tsiachris D, Tzeis S, Rassias I, Rokas S, Levendopoulos G, Kourgiannidis G, Kalpakos D, Stavropoulos G, Chiladakis I, Gaitanidou S, Ginos C, Kotsakis A, Kappos K, Kolettis T, Simantirakis E, Sideris A, Sideris S. Trends in ablation procedures in Greece over the 2008-2018 period: Results from the Hellenic Cardiology Society Ablation Registry. Hellenic J Cardiol. 2020 Sep 18:S1109-9666(20)30195-0. doi: 10.1016/j.hjc.2020.09.005. Epub 2020 Sep 19. PMID: 32956809. e-Link
• Ioannidis P , Christoforatou E, Zografos T, Charalambopoulos P, Kouvelas K, Kappou T, Tsoumeleas A, Floros S, Tagoulis D, Ntarladimas I, Kalantzi M, Tagoulis I, Eleftheriades E, Avzotis D, Manolis AS, Vassilopoulos C. Incidence, electrophysiological characteristics, and long-term follow-up of perimitral atrial flutter in patients with previously confirmed mitral isthmus block. Authorea, October 2020, DOI: 10.22541/au.160315271.14600149/v1  e-Link
• Ioannidis P , Zografos T, Vassilopoulos C, Christoforatou E, Dadous G, Skeberis V, Sakadamis G, Kanonidis I. Selective Activation Re-Mapping Reveals the Mechanism in Apparently Unstable Atrial Tachycardias. J Atr Fibrillation. 2019;11(6):2152. doi:10.4022/jafib.2152. PMID: 31384367; PMCID: PMC6652787. e-Link 

SCIENTIFIC SOCIETIES: 

Member 

• Hellenic Cardiological Society (HCS)
• Pacing and Electrophysiology Working Group of the HCS
• European Heart Rhythm Association
• European Society of Cardiology
• Heart Rhythm Society

Board

• Hellenic Rhythm Society (2015-2019)
• Hellenic Cardiac Electrophysiology Society (President, 2019-present)

ACADEMIC EDITOR - EDITORIAL BOARD:

• “Clinical Cardiology and Cardiovascular Interventions” Journal (Impact Factor: 1.03) (Editorial Board)
• Journal “PLOS ONE” (Impact Factor: 2.470) (Academic Editor
• Hellenic Journal of Cardiology (Impact Factor: 4.047) (Manuscript Reviewer)
• The Journal of Innovations in Cardiac Rhythm Management (JICRM) (SCImago Journal Rank (SJR): 0,64) (Manuscript Reviewer)

RESEARCH INTERESTS

• Atrial Fibrillation: Pathophysiological mechanisms, electroanatomical mapping, and catheter ablation.
• Atrial Tachycardias: Advanced mapping techniques and ablation strategies.
• Supraventricular Tachycardias (SVT): Diagnostic mapping and catheter ablation.
• Ventricular Arrhythmias: High-density mapping and substrate ablation.

INDUSTRY ENGAGEMENTS & ADVISORY ROLES

• Medtronic: Member of the Pulsed Field Ablation Advisory Board (Athens, Greece | April 15, 2024).
• Boston Scientific: Member of the Pulsed Field Ablation ERA Advisory Board (Divani Caravel Hotel, Athens, Greece | September 21, 2024).
• Boston Scientific: Key Opinion Leader (KOL) at the Greek Key Opinion Leaders Meeting (Hotel Grande Bretagne, Athens, Greece | November 1, 2025).

CLINICAL TRIALS & MULTICENTER REGISTRIES

• The AEGEAN PFA Registry: Clinical Investigation Protocol in the multicenter, prospective, post-market registry evaluating real-world safety and effectiveness of Pulsed Field Ablation (PFA) for cardiac arrhythmias.
• MINERVA Trial: MINimizE Right Ventricular pacing to prevent Atrial fibrillation and heart failure (ClinicalTrials.gov ID: NCT00262119) | Study Group Member, Adverse Event and Endpoint Committee.
• Atrial Fibrillation Ablation Pilot Study: (ClinicalTrials.gov ID: NCT00744835) | Clinical Collaborator.

Secretary: +30 6985928668

E-mail: [email protected], [email protected], [email protected]

Web Site: www.eponline.gr

ResearchGate Profile : e-Link

ORCID iD: 0000-0002-3529-7882 e-Link

LinkedIn: panagiotis-ioannidis-518779237

X (Twitter): @Ioannidis_Pan