• Medical Degree:  excellent (9) 

  • Medical  School, Aristotelian University of Thessaloniki, 1985.

Medical Thesis: <<Non invasive indices of systolic and diastolic left ventricular function in Hypertrophic Cardiomyopathy>>. 

Medical  School, University of Ioannina, GREECE, 2000 (under Professor D.SIDERIS)

Full training and experience in clinical Cardiology.

Full training and experience in Coronary Care Unit.

Full training and experience in echocardiography (both transthoracic and 2D – 3D transoesophageal). Performance of more than 400 2D and 3D transoesophageal echocardiograms  per year ( including intraoperative procedures ).

Experience in permanent pacing (>1500 procedures)

More than 18.000 Cardiac Catheterization procedures (first operator – femoral and radial approach). 

More than 7000 PTCAs (first operator), involving all forms of invasive procedures (stents, rotablator, IVUS, FFR).

Special interest in Rotablation (> 400 procedures)

Full CTO program including anterograde, retrograde and CROSSBOSS approaches.

Experience in structural heart disease (> 300 ASD/PFO closures as first operator). Experience in paravalvular leak closure.

TAVI program started September 2012 – 4 TAVIs per month (performance >100 TAVIS as first operator)

Mitral Clip program started September 2014 – participation in the RESHAPE trial




Consultant Cardiologist, Director of Catheterization Laboratory, Department of Invasive Cardiology, St Lukas Hospital, Thessaloniki, Greece (the center performs 3000 cardiac catheterizations, 1000 PTCA’s, 40 TAVIs and 20 Mitral Clip operations per year).

  • Hellenic Cardiac Society

  • Cardiac Society of Northern Greece

  • British Society of Echocardiography (November 1993)

  • British Cardiac Interventional Society (February 1998).

  • President of the Working Group for Valvular Diseases of the Greek Cardiac Society 2006-2008


  • Participation and teaching in regular MRCP courses at Papworth Hospital, for the period 1991-94•    

  • Teaching transoesophageal echocardiography and cardiac catheterization procedures in younger registrars at Papworth Hospital, for the period 1992-94

  • Teaching transoesophageal echocardiography at regular sessions at St Lukas Hospital, Thessaloniki, Greece  

  • Official proctor of BOSTON Scientific in Rotablation and IVUS training for SouthEastern Europe  since 2007   

  • Official proctor of MEDTRONIC in TAVI training 


1.03.86 – 16.07.86: SHO in General Medicine, 424 General Military Hospital, Thessaloniki, Greece.

17.07.86 – 5.08.87: Rural Medical Service. Katavothra Evrytania, Greece.

6.08.87 – 4.01.88: Internist in General Medicine, General Clinic, Thessaloniki, Greece.

5.01.88 – 5.01.89: SHO in General Medicine, IKA Hospital, Thessaloniki, Greece. 

1.02.89 – 31.07.89: SHO in General Medicine, Leigh Infirmary, Manchester, England, under Dr J. Perkins, Consultant Physician. 

1.08.89 – 1.04.90: Clinical Fellow (Senior House Officer – SHO) in Cardiology, Cardiac Department, Leeds General Infirmary, Leeds, England, under Dr S. H. Taylor, Consultant Cardiologist.

2.04.90 – 31.07.91: Senior House Officer (SHO) in Cardiology and Coronary Care Unit, Bransley General Hospital, Sheffield, England, under Dr. G. Sandler, Consultant Physician and Cardiologist.

1.10.91 – 30.09.92: Clinical Fellow in Cardiology, Regional Cardiac Unit, Papworth Hospital, Cambridge, England, under Dr L. M. Shapiro, Consultant Cardiologist. 

1.10.92 – 30.06.94: Registar in Cardiology, Regional Cardiac Unit, Papworth Hospital, Cambrigde, England, under Dr L. M. Shapiro, Consultant Cardiologist.

1995 – 2012: Honorary Senior Registrar contract, for a period of one month per year, Regional Cardiac Unit, Papworth Hospital, Cambrigde, England, under Dr L. M. Shapiro, Consultant Cardiologist. At this period I have been participating in performing complex angioplasty and structural procedures.

3.07.94 – till today: Consultant Cardiologist, Catheterization Laboratory, Department of Invasive Cardiology, St Luke's Hospital, Thessaloniki, Greece  




23) Pitsis AA, Bougioukas IG, Kelpis TG, Dardas PS, Mezilis NE, Tsikaderis DD, Deliaslani D.
Modified (Valsalva graft) aortic root reimplantation for successful repair of pulmonary autograft aneurysm after Ross procedure.
Hellenic J Cardiol. 2007 Jan-Feb;48(1):47-9. 


24) Chatzizisis YS, Giannoglou GD, Sianos G, Ziakas A, Tsikaderis D, Dardas P, Matakos A, Basdekidou C, Misirli G, Zamboulis C, Louridas GE, Parcharidis GE.
In vivo comparative study of linear versus geometrically correct three-dimensional reconstruction of coronary arteries.
Am J Cardiol. 2008 Jan 15;101(2):263-7.


25) Dardas PS, Pitsis AA, Mezilis NE, Tsikaderis DD, Ninios VN, Boudoulas H.
Left Atrial Function and Work After Surgical Ventricular Restoration in Postmyocardial Infarction Heart Failure.
J Am Soc Echocardiogr. 2008 Apr 1


26) Dardas PS, Pitsis AA. Focusing on Atrial Remodeling in Chronic Mitral Regurgitation: Better Prevent Ventricular Remodeling rather than Treat. Cardiology. 2009 Jun 12;114(2):130-131.


27) Timotheos G. Kelpis, Vlasis N. Ninios, Petros S. Dardas,  Antonis A. Pitsis.
Subaortic stenosis in an adult caused by two discrete membranes: a three
dimensional transesophageal  echocardiographic identification. Ann Thorac Surg 2009;88:1703


28) Petros Dardas, Nikos Mezilis, Vlasis Ninios, Georgios K.  Efthimiadis, Dimitrios Tsikaderis, Efstathios Pagourelias, Christodoulos Pliakos. 
Rheolytic thrombectomy in patients with acute coronary syndrome and large thrombus burden: Initial and mid-term results from a single centre experience. 
Hellenic J Cardiol. 2010 Jan-Feb;51:27-36. 


29) Petros S. Dardas, Vlasis N. Ninios, Nikolaos E. Mezilis, Dimitrios D. Tsikaderis, Vasilis D. Thanopoulos. Percutaneous closure of atrial septal defects: Immediate and mid-term results. 
Hellenic J Cardiol. 2010 March-April;51:104-112. 


30)  Mezilis N., Dardas P, Ninios V, Tsikaderis D. Rotablation in the Drug Eluting Era: Immediate and Long-Term Results from a Single Center Experience. 
J Interv Cardiol 2010, April 28



31) Petros S. Dardas, Nikos Mezilis, Vlassis Ninios, Dimitrios Tsikaderis, Efstratios K Theofilogiannakos. The use of Guideliner Catheter as a child in mother technique Initial Single Centre Experience. Heart Vessels, August 25, 2011


32) Petros Dardas, Nikolaos Mezilis, Vlasis Ninios, Dimitrios Tsikaderis, Efstratios Theofillogiannakos, Stelios Lambropoulos. The use of rotational atherectomy and drug eluting stents in the treatment of heavily calcified coronary lesions. Hellenic J Cardiol 2011;52:399-406


33)  Petros S. Dardas, Vlasis Ninios, Nikos Mezilis, Efstratios K. Theofilogiannakos,Dimitris Tsikaderis, Vassilis Thanopoulos. Cryptogenic Stroke After Percutaneous Closure of an Atrial Septal Defect. Hellenic J Cardiol 2012; 53: 155-159


34) P.Dardas, N.Mezilis, V.Ninios, E.K.Theofilogiannakos, D.Tsikaderis, N.Tsotsolis, A.Kolettas, N.Nikoloudakis, A.A.Pitsis.
ECMO as a bridge to high-risk rotablation of heavily calcified coronary arteries Herz 2012 • 37:225–230


35) Petros S. Dardas, Dimitris D. Tsikaderis, Efstratios K. Theofilogiannakos, Anastassia N. Spyrou, Nikos E. Mezilis, Vlasis N. Ninios, Antonis A. Pitsis. 
Bi-ostial coronary thrombosis due to heparin induced thrombocytopenia.
International Journal of Cardiology 2012,                                                   
  DOI information: 10.1016/j.ijcard.2012.05.069

36) V.Thanopoulos, P.Dardas, V.Ninios, N.Eleftherakis, E.Karanasios:

Transcatheter closure of large atrial septal defects with deficient anterior or posterior rims using the “Greek “ manoeuver: a multicenter study

International Journal of Cardiology Int J Cardiol 2013 Oct 9; 168(4):3643-6


37) Petros S Dardas, Vasilis Thanopoulos, Efstratios Theofilogiannakos, Vlassis Ninios, Alexandros Kallifatidis, Antonis Pitsis: A word of caution: Risk of device erosionafter percutaneous treatment of atrial septal defect in patients with dilated aortic root. Circulation. 2014;129:e399-e400

38)  E Barbato, D Carrie, P Dardas et al: European expert consensus on rotational atherectomy  Eurointervention2015;11:30-36

39) Katsiki N, Kollari E, Dardas S, Dardas P, Haidich AB, Athyros VG, Karagiannis A. 
Is there an association between Carotid-Femoral Pulse Wave Velocity and coronary Heart Disease in patients with Coronary Artery Disease: A pilot study. Open Cardiovasc Med J. 2016 May 23;10:64-8


1) D.L.Connolly, P.S.Dardas, J.J.Crowley, A.Kenny, M.C.Petch: Acute coronary embolism complicating aortic valve endocarditis treated with streptokinase and aspirin. A case report.  The Journal of Heart Valve Disease 1994;3:245-46.

2) J.J.Crowley, A.Kenny, P.Dardas, D.L.Connolly, L.M.Shapiro: Identification of right atrial thrombi using transoesophageal echocardiography. European Heart Journal 1995;16:708-10.

3) P.S.Dardas: Transoesophageal echocardiography as a diagnostic tool. Cardiovascular and Pulmonary Chronicles 1995;2:40-7.

4)J.J.Crowley, P.S.Dardas, A.A.Harcombe, L.M.Shapiro: Transthoracic Doppler echocardiographic analysis of phasic coronary blood flow velocity in hypertrophic cardiomyopathy. Heart 1997;77:558-63.

5) J.J.Crowley, P.S.Dardas, L.M.Shapiro: Assessment of apical hypertrophic cardiomyopathy using transoesophageal echocardiography. Cardiology 1997;88:189-196.

6) T.G.Hennessy, P.S.Dardas, G.Filippatos, J.J.Crowley, C.Wisbey, L.M.Shapiro: Evaluation of patients with hypertrophic cardiomyopathy. Is there an advantage in performing multiplane transesophageal echocardiography? The Journal of Noninvasive Cardiology,Winter 1997:27-33.

7)P.S.Dardas, D.Tsikaderis, E.Ioannides, A.Bisbos, D.Smirlis, I.Arditis, P.Spanos: Constrictive pericarditis after coronary artery bypass surgery as a cause of unexplained dyspnoea: a report of five cases. Clinical Cardiology 1998;21:691-94


8) P.S.Dardas, D.Tsikaderis, K.Makrigiannakis, P.Saripoulos, M.Toumbouras: Complete left atrial obliteration due to localized tamponade after coronary artery perforation during PTCA. Catheterization and Cardiovascular Diagnosis 1998;45:61-63 


9) A.Chauhan, P.Dardas, V.Tirlapur, P.Schofield: A comparison of atenolol with controlled release diltiazem in chronic stable angina. Journal of Clinical Research 1998;1:357-365.


10) P.S.Dardas, D.D.Tsikaderis, F.G.Manoudis: Stenting of an anomalous left circumflex coronary artery arising from the right coronary artery. J Invas Cardiol 1999;11:510-512.


11) D.Tsikaderis, P.Dardas, H.Hristoforidis: Incomplete ventricular septal rupture following blunt chest trauma. Clin. Cardiol.23;2000:131-132.


12) P.S.Dardas, G.S.Filippatos, D.D.Tsikaderis, L.K.Michalis, I.A.Goudevenos, D.A.Sideris, L.M.Shapiro: Noninvasive indexes of left atrial diastolic function in hypertrophic cardiomyopathy. J.Am. Soc. Echocardiogr 2000;13:809-817.


13) P.S.Dardas, D.D.Tsikaderis, N.Mezilis, P.Geleris, H.Boudoulas: Echocardiographic evidence of atrial myopathy in amyloidosis: A case report. Eur J Echocardiography 2002;3:303-5


14) P.S.Dardas, D.D.Tsikaderis, N.E.Mezilis, G.Styliadis: A technique for type 4a coronary bifurcation lesions: Initial results and 6-month clinical evaluation. J Invas Cardiol 2003;15:180-183


15) A.Pitsis, P. Dardas, N Mezilis, N.Nikoloudakis, G Filippatos, D.Burhoff. Temporary assist device for postcardiotomy cardiac failure. The Annals of Thoracic Surgery 2004;77:1431-3


16) P.S.Dardas, A.A.Pitsis, D.D.Tsikaderis, N.E.Mezilis, P.N.Geleris, H.K.Boudoulas. Left atrial volumes, function and work before and after mitral valve repair in chronic mitral regurgitation. The Journal of Heart Valve Disease 2004;13:27-32

17)    Pitsis AA, Kelpis TG, Dardas PS, Mezilis NE, Tsikaderis DD, Boudoulas HK. Ross procedure: medium-term results.
Hellenic J Cardiol. 2006 May-Jun;47(3):160-3.


18) Papafaklis MI, Sianos G, Vaina S, Manginas A, Dardas PS, Tsikaderis D, van Mieghem CA, Michalis LK, Serruys PW. Clinical and angiographic follow-up after overlapping implantation of polytetrafluoroethylene covered stents with drug eluting stents.  EuroInterv.2006;2:218-223


19) Thanopoulos BV, Dardas PS, Karanasios E, Mezilis N. Transcatheter closure versus medical therapy of patent foramen ovale and cryptogenic stroke. Catheter Cardiovasc Intervent 2006;68:741-6

20) Pitsis AA, Vissouli AN, Vasilikos V, Ninios VN, Sfirakis PD, Mezilis NE,  Dardas PS, Filippatos GS, Bougioukas GI, Kremastinos DT, Long JW: First human implantation of a new rotary blood pump: design of the clinical feasibility study.Hellenic J Cardiol. 2006 Nov-Dec;47(6):368-76.

21) Pitsis AA, Visouli AN, Burkhoff D, Dardas P, Mezilis N, Bougioukas G, Filippatos G.
Feasibility study of a temporary percutaneous left ventricular assist device in cardiac surgery.
Ann Thorac Surg. 2007 Dec;84(6):1993-9 


22) Pitsis AA, Kelpis TG, Ninios VN, Dardas PS, Visouli AN, Boudoulas HK.
Modified Ross Procedure: Partially Supported Root Replacement.
Thorac Cardiovasc Surg. 2007 Dec;55(8):520-521