Γρηγόριος Παττακός ΚΑΡΔΙΟΧΕΙΡΟΥΡΓΟΣ Αναπλ. Διευθυντής Β΄Καρδιοχειρουργικής Κλινικής, Αναπλ. Διευθυντής Τμήματος Διαδερμικών Βαλβίδων

• American Board of Surgery
• Society of Thoracic Surgeons
• Southern Thoracic Surgical Association 
• European Association for Cardio-Thoracic Surgery
• American College of Surgeons
• American College of Cardiology
• American Heart Association
• Athens Medical Association (Greece)
• Mελος της ομάδας εργασιας για την καρδιοχειρουργική ενηλίκων του Society of Thoracic Surgeons στην Αμερικη.  

Μέλος συντακτικής επιτροπής

• Annals of Thoracic Surgery

• Georgetown University Medical Center, Ουάσιγκτον ΗΠΑ
• Virginia Hospital Center, Βιρτζίνια ΗΠΑ
• Children’s National Medical Center, Ουάσιγκτον ΗΠΑ
• Washington Hospital Center, Ουάσιγκτον ΗΠΑ
• Veteran’s Affairs Hospital, Ουάσιγκτον ΗΠΑ
• Baylor St. Luke’s Medical Center, Χιούστον, Τέξας, ΗΠΑ 
• Ben Taub General Hospital, Χιούστον, Τέξας, ΗΠΑ 
• Michael E. Debakey VA Medical Center, Χιούστον, Τέξας, ΗΠΑ 
• Texas Children’s Hospital, Χιούστον, Τέξας, ΗΠΑ 
• MD Anderson Cancer Center, Χιούστον, Τέξας, ΗΠΑ

• Στεφανιαία Νοσο (Bypass)
• Επιδιόρθωση Μιτροειδούς Βαλβίδας
• Διακαθετηριακή Αντικατάσταση Αορτικής Βαλβίδας (TAVI)
• Χειρουργική Επιδιόρθωση και Αντικατάσταση Αορτικής Βαλβιδας
• Επιδιόρθωση Τριγλώχινας Βαλβίδας 
• Χειρουργική και Διακαθετηριακή Επιδιόρθωση Ανευρυσμάτων 
• Χειρουργική Αντιμετώπιση Κολπικής Μαρμαρυγής ( MAZE procedure)

• “Thoracic Infections and Hemoptysis” in LaPar, D., Mery, C., Turek J., TSRA Review of Cardiothoracic Surgery, (2nd edition)
• “Post-TAVR management” in American College of Cardiology Transcatheter Valve Handbook (pending publication)

• Tricuspid Valve Replacement – The Road Less Travelled. Pattakos G. Ann Thorac Surg. 2021 Apr 24:S0003-4975(21)00737-2
• The effect of Remote Ischemic Preconditioning (RIPC) on myocardial injury and inflammation in patients with severe aortic valve stenosis undergoing Transcatheter Aortic Valve Replacement (TAVΙ). Halapas A, Kapelouzou A, Chrissoheris M, Pattakos G, Cokkinos DV, Spargias K. Hellenic J Cardiol. 2021 Feb 20:S1109-9666(21)00016-6
• Progression of Tricuspid Regurgitation After Surgery for Ischemic Mitral Regurgitation. Bertrand PB, Overbey JR, Zeng X, Levine RA, Ailawadi G, Acker MA, Smith PK, Thourani VH, Bagiella E, Miller MA, Gupta L, Mack MJ, Gillinov AM, Giustino G, Moskowitz AJ, Gelijns AC, Bowdish ME, O’Gara PT, Gammie JS, Hung J; Cardiothoracic Surgical Trials Network (CTSN). J Am Coll Cardiol. 2021 Feb 16;77(6):713-724
• Minimally invasive direct CABG versus off-pump CABG: Can less be more. Pattakos G. Hellenic J Cardiol. 2020 Mar-Apr;61(2):125-126
• Risk for non-home discharge following surgery for ischemic mitral valve disease. Lala A, Chang HL, Liu X, Charles EJ, Yerokun BA, Bowdish ME, Thourani VH, Mack MJ, Miller MA, O’Gara PT, Blackstone EH, Moskowitz AJ, Gelijns AC, Mullen JC, Stevenson LW; Cardiothoracic Surgical Trials Network (CTSN) Working Group. J Thorac Cardiovasc Surg. 2020 Mar 4:S0022-5223(20)30524-9
• Cost-effectiveness of coronary artery bypass grafting plus mitral valve repair versus coronary artery bypass grafting alone for moderate ischemic mitral regurgitation. Ferket BS, Thourani VH, Voisine P, et al; Cardiothoracic Surgical Trials Network Investigators. J Thorac Cardiovasc Surg. 2019 Jul 2. pii: S0022-5223(19)31332-7.
• Transcatheter mitral valve-in-ring implantation by the transfemoral approach: First experience in Greece. Chrissoheris MP, Halapas A, Papadopoulos K, Kourkoveli P, Nikolaou I, Bouboulis N, Pattakos G, Spargias K. Hellenic J Cardiol. 2019 Jun 5. pii: S1109-9666(19)30053-3.
• Pacemaker Implantation After Mitral Valve Surgery With Atrial Fibrillation Ablation. DeRose JJ Jr, Mancini DM, Chang HL, et al; CTSN Investigators. J Am Coll Cardiol. 2019 May 21;73(19):2427-2435.
• Pattakos G, Omer S, Jimenez E. Post-Pericardiotomy Syndrome: Beware or Just Be Aware? J Am Heart Assoc. 2018 Nov 20;7(22):e011118.
• Blackstone EH, Chang HL, Rajeswaran J, et al; Cardiothoracic Surgical Trials Network Investigators. Biatrial maze procedure versus pulmonary vein isolation for atrial fibrillation during mitral valve surgery: New analytical approaches and end points. J Thorac Cardiovasc Surg. 2019 Jan;157(1):234-243.e9.
• Blitzer D, Stephens EH, Tchantchaleishvili V, Lou X, Chen P, Pattakos G, Vardas PN. Risks and Rewards of Advanced Practice Providers in Cardiothoracic Surgery Training: National Survey. Ann Thorac Surg. 2018 Oct 9. pii: S0003-4975(18)31430-9.
• Stephens EH, Goldstone AB, Fiedler AG, Vardas PN, Pattakos G, Lou X, Chen PC, Tchantchaleishvili V. Appraisal of mentorship in cardiothoracic surgery training. J Thorac Cardiovasc Surg. 2018 Jul 18. pii: S0022-5223(18)31791-4.
• Pattakos G, Chrissoheris M, Halapas A, Papadopoulos K, Kourkoveli P, Bouboulis N, Pattakos S, Spargias K. Transcatheter Aortic Valve Replacement in a Patient with Dextrocardia and Situs Inversus Totalis. Ann Thorac Surg. 2018 Jun 13. pii: S0003-4975(18)30839-7.
• Preventza O, Price MD, Amarasekara HS, Tullos A, Chen P, Reidy MR, Pattakos G, de la Cruz KI, Zhang Q, Coselli JS. Chronic Type I and Type III aortic dissections: a propensity analysis of outcomes after open distal repair. Eur J Cardiothorac Surg. 2018 Mar 2. 

Παρουσιάσεις Πόστερ

• Pattakos G, Preventza O, Simpson K, Price M, Rammou A, De la Cruz K, Weldon S, Lemaire S, Coselli J. “Time To Re-Examine the Benefits of Deep Hypothermia: Higher Temperatures During Hypothermic Circulatory Arrest are Associated with Lower Rates of Stroke and Bleeding in Aortic Surgery”. American Association for Thoracic Surgery 2017 Annual Meeting Poster Competition, Boston, Massachusetts. Awarded 2nd place winner out of 51 entries. 
• Rader F, Pujara A, Pattakos G, Rajeswaran J, Li L, Castel L, Costantini O, Van Wagoner DR, Blackstone EH. “Perioperative Fatty Acid Binding Protein Levels in Atrial Fibrillation after Cardiac Surgery”. American Heart Association Scientific Sessions 2011, Orlando, Florida

Ομιλίες

• Panelist for discussion of “Mitral and Tricuspid Valve Clips – Live Case”, Moderator for Mitral Abstracts, Heart Valve Society 2020 annual meeting, Abu Dhabi, United Arab Emirates, Feb 14-16, 2020
• “Does Mitraclip Edge to Edge Repair Provide Survival Benefit in Heart Failure Patients with Ischemic Mitral Regurgitation? PRO argument” EMEKA Annual Meeting, Athens, Greece Feb 1^st, 2020
• “Minimally Invasive Mitral and Tricuspid Repair using 3D Imaging”, Ippokrateio University Hospital Cardiology Grand Rounds, Athens, Greece Jan 28,2020
• “Role of the Hybrid Operating Room for Heart Valve and Aortic Aneurysm and Dissection Operations”, Heart, Vessels and Stroke conference, Athens, Greece Jan 24-26,2020
• “Selecting Amongst all Mitral Valve Repair Options in the Modern Era”, Hygeia Hospital Cardiology Grand Rounds, Athens, Greece January 22, 2020
• “New Technology in Cardiac Surgery”, Aristoteleio University Hospital Cardiac Surgery Grand Rounds, Thessaloniki, Greece Nov 22, 2019
•  “Alternative Access for TAVI / TAVR” , 2^nd Athens Cardiovascular and Thoracic Symposium, Caravel Hotel, Athens, Greece November 8^th, 2019
•  “Thoracoscopic Mitral Valve Repair”, Hellenic Cardiological Society regional meeting, Komotini, Greece Nov. 2, 2019 
• “Mitral Annular Disjunction and Risk of Sudden Death” presented by E. Karvouni at Elpis Hospital Annual Meeting, Caravel Hotel Athens, Greece Sept 20-21, 2019
• “Minimally Invasive Mitral Valve Repair”, Hellenic Cardiological Society regional meeting, Chios Island Sept 6-8, 2019
• Moderator at the European Society of Cardiology Annual Meeting 2019 for session entitled “TAVI: tips and tricks for beginners”. Paris, France August 31, 2019
• “Anticoagulation for Prosthetic Heart Valves: Unresolved Questions Requiring Answers”, 26^th Anniversary International Congress on Thrombosis. Organized by the European and Mediterranean League Against Thrombotic Diseases.  Athens, Greece June 21, 2019
• Moderator of session “Non-pharmacological treatments: beyond the conventional”,  Heart Failure 2019 meeting, organized by the European Society of Cardiology, Athens, Greece May 27, 2019
• “IVUS-Guided TEVAR”,“Endovascular Treatment of Thoracoabdominal Aneurysms”, “Treatment of an aortic arch aneurysm with debranching and chimney techniques” LIVE 2019 Vascular Surgery Meeting, Larisa, Greece May 11, 2019
• “Developments in TAVR”, Cardio-Bridge Conference, Patras, Greece, May 10, 2019
• “Latest TAVR randomized trials” “Minimally Invasive Surgery for the Mitral Valve: Hard to beat!” “Live-in-a-box case presentation of TAVR with the Boston Scientific ACURATE valve” Transcatheter Heart Valves Greece 2019, Athens, Greece May 3-4, 2019
•  “Treatment of Left Main Coronary Artery Disease: Is CABG Still King?”, Hellenic Society of Cardiology Peripheral Meeting, Thessaloniki, Greece February 21, 2019
• “Role of the Surgeon in Transcatheter Heart Valves”, Metropolitan General Hospital Cardiology Conference. Athens, Greece  February 15,2019
• “Minimally Invasive Mitral Valve Repair”, Heart,Vessels, and Stroke Conference, Divani Caravel Hotel, January 26, 2019
• “Transcatheter and Surgical Approach to All Heart Valves”, Grand Rounds, Ippokration University Hospital, Athens, Greece January 8, 2019
• “The Utility of Valve in Valve TAVR and the Role of Surgical Valves Designed For Valve in Valve Therapies” Endoscopic and Transcatheter Heart Therapies Meeting, Thessaloniki, Greece, December 15, 2018
• “Hybrid and Transcatheter Repair of Thoracic Aortic Aneurysms”, Endoscopic and Transcatheter Heart Therapies Meeting, Thessaloniki, Greece, December 15, 2018
• “Transcatheter Therapies for the Aortic, Mitral and Tricuspid Valves”, Elpis General Hospital, Athens, Greece November 27, 2018
• “TAVR in 2020: Next Frontiers in Valve Technology and Patient Selection”, American Heart Association Scientific Sessions, Chicago, IL, November 10, 2018
• “Open and Endovascular Treatment of Complicated Thoracic Aortic Aneurysms”, Tzaneio General Hospital, Athens, Greece October 25, 2018
• “Selecting the Best Intervention for Patients with Severe Mitral Regurgitation”, Annual Panhellenic Congress of the Hellenic Cardiological Society, October 19, 2018, Athens, Greece
• “Structural Failure of a Self-Expandable Aortic Bioprosthesis on Implantation: Crushed by the Native Valve”.  2018 PCR London Valves Meeting,  London, England. Sept 11, 2018
• “CABG is Superior to PCI for Multivessel Coronary Artery Disease”, 10^th Peripheral Congress of the Hellenic Society of Cardiology, Mytilene, Greece Sept 1, 2018
• Moderator at the European Society of Cardiology Annual Meeting. Munich, Germany August 28, 2018 Session Title:  Prevention and treatment of bioprosthetic valve failure.
  Speakers:
  Degeneration of mitral valve bioprostheses: incidence,mechanisms, diagnosis. Nicole KARAM (Paris, France)
  Solutions for the failed mitral bioprosthesis Volker RUDOLPH (Bad Oeynhausen, Germany)
  Treatment of TAVI thrombosis ‑ Current evidence David JOCHHEIM (Munich, Germany)
  Antithrombotic treatment of patients undergoing TAVI. Roxana MEHRAN (New York, United States of America)
• “20 Years of Innovation in Cardiac Surgery”, Cardiology Grand Rounds, Patra University Hospital, May 30, 2018
• “TAVR Procedure Volume, Outcomes, and Utility of a Tiered National System of Valve Centers”, 7th Transcatheter Heart Valve Conference, Athens, Hilton, May 19, 2018
• “Tricuspid Valve Surgery: Outcomes and Implications for Percutaneous Interventions”, 7^th Transcatheter Heart Valve Conference, Athens, Hilton, May 18, 2018
• “Will the heart team survive the era of minimalist TAVR?”, 7^th Transcatheter Heart Valve Conference, Athens Hilton, May 18, 2018
• “Overview of Aortic Surgery”, Cardiology Grand Rounds, Sismanoglio General Hospital, May 11, 2018
• “TEVAR for Thoracoabdominal Aneurysms”, Cardio-Bridge Conference, Patra University Hospital, May 6^th, 2018
•  “Long-term Mechanical Circulatory Support”, 19^th PanHellenic Heart Failure Conference, Athens, Greece February 4^th, 2018
• “Subspecialization and Physician Workforce Management in Cardiac Surgery and Cardiology” Heart, Vessels, and Stroke Meeting, Athens, Greece January 27, 2018
• “PCI versus CABG in Patients with Renal Failure” Cardiovascular Disease and Renal Dysfunction 10^th Annual Symposium, Athens, Greece, January 20, 2018
• “Aortic and Mitral Valve Update – TAVR, SAVR, and Best Practices for Ischemic MR”, Halkida General Hospital Cardiology Grand Rounds, Jan 9, 2018
• “Transcatheter versus Surgical Aortic Valve Replacement”, KAT Hospital, Athens, Greece, December 5th, 2017
• “Temperature Management During Hypothermic Circulatory Arrest in Aortic Surgery”, 38th Annual Panhellenic Congress of the Hellenic Cardiological Society, Oct 20, 2017
• “General Cardiology and Cardiology Subspecialty Training in the United States”, 38th Annual Panhellenic Congress of the Hellenic Cardiological Society, Oct 21, 2017
• “Surgery for Ischemic Mitral Regurgitation”, Baylor St. Luke’s Medical Center, Quality Improvement Forum, Oct 6, 2016
• “Review of Guidelines for Valvular Heart Surgery”, Baylor St. Luke’s Medical Center, Quality Improvement Forum, Aug 17, 2016
• “Aortic Dissection Complicated by Malperfusion”, Baylor St. Luke’s Medical Center, Quality Improvement Forum, Sept 10, 2015
• “Severe Ischemic Mitral Regurgitation: Repair or Replace?”, Baylor College of Medicine/ MD Anderson Cancer Center Joint Journal Club, October 20, 2014
• “Surgical Ablation of Atrial Fibrillation during Mitral Valve Surgery”, Baylor St Luke’s Medical Center, Quality Improvement Forum
• “Left Atrial Paraganglioma”, Baylor St Luke’s Medical Center, Multidisciplinary tumor board, August 22, 2014
• “Truncus Arteriosus”, Texas Children’s Hospital, Congenital Heart Surgery Lecture Series, November 4, 2014
• “Transposition of the Great Arteries”, Texas Children’s Hospital, Congenital Heart Surgery Lecture Series, December 16, 2014
• “Robotic Mitral Valve Repair”, Georgetown University Hospital, Research Symposium, June 17, 2011