Prof. MD. Batuhan Özay

Education & Specialty Training

• 1994 – Istanbul University, Istanbul Faculty of Medicine

• 2001 – Dr. Siyami Ersek Thoracic, Cardiovascular Surgery Training and Research Hospital, Cardiovascular Surgery – Graduate / Doctorate

Professional Experience

• Medical Park Bahçelievler Hospital

Professional Memberships

• Turkish Medical Association

• Turkish Society of Cardiovascular Surgery

• Turkish Society of Cardiology

• National Vascular Surgery Association

• Phlebology Association

• European Association for Cardiothoracic Surgery

Supervised Master’s and Doctoral Theses

• Dr. Osman Eren Karpuzoğlu – “Kritik Lad Lezyonu olan hastalarda Minimal İnvazif Direkt Koroner Arter Bypas (MIDCAB) ile sternotomiyle atan kalpte (OPCAB) Koroner Bypas sonuçlarının karşılaştırılması”, Comparison of Coronary Bypass Outcomes in Patients with Critical LAD Lesions: Minimal Invasive Direct Coronary Artery Bypass (MIDCAB) versus Off-Pump Coronary Bypass via Sternotomy (OPCAB), Dr. Siyami Ersek Thoracic Cardiovascular Surgery Training and Research Hospital, 2007.

• Dr. Timuçin Aksu – “Pulmoner Hipertansiyonlu hastalarda Aorta Koroner Bypas Greftleme Erken ve Geç Dönem Sonuçları”, Early and Late Outcomes of Aorta Coronary Bypass Grafting in Patients with Pulmonary Hypertension, Dr. Siyami Ersek Thoracic Cardiovascular Surgery Training and Research Hospital, 2009.

Administrative Roles

• Head of Group, Kırıkkale Balışeyh Central Health Center, 1994–1996

• Deputy General Secretary, Turkish Society of Cardiovascular Surgery, 1997–2010

• Member of National Congress Organizing Committee, Turkish Society of Cardiovascular Surgery, 1997–2010

• Founding Rector, Istanbul Atlas University, 2018–2022

Awards

• 2008 Istanbul Provincial Health Directorate – Most Published Doctor

International Peer-Reviewed Journal Articles (SCI, SSCI, Arts and Humanities)

• Serdar Çimen, Mehmet Kaplan, Hakan Gerçekolu, Bülend Ketenci, Batuhan Özay, Fuat Bilgen, M. Murat Demirtaş. Coronary Arteriovenous Fistulas. Asian Cardiovasc Thorac Ann, Sep; 8: 235–237 (2000).

• Kaplan M, Demirtaş M, Çimen S, Kut MS, Özay B, Kanca A, Özler A. Swan-Ganz catheter entrapment in open heart surgery. J Card Surg. Sep-Oct;15(5):313–315 (2000).

• Konuralp C, Ketenci B, Özay B, Idiz M, Saskin H, Tavli M, Seki I, Kanca A. Effects of seasonal variations on coronary artery surgery. Heart Surg Forum;5(4):388–392 (2002).

• Celik S, Özay B, Dagdeviren B, Gorgulu S, Yildirim A, Uslu N, Ketenci B, Eren M, Akgoz H, Demirtaş M, Tezel T. Effect of patient age at surgical intervention on long-term right ventricular performance in atrial septal defect. A pulsed wave tissue doppler echocardiography study. Jpn Heart J. Mar;45(2):265–273 (2004).

• Çimen S, Ketenci B, Özay B, Demirtaş M. Neo-chordae length adjustment in mitral valve repair. Eur J Cardiothorac Surg. May;29(5):843–844 (2006).

• Tartan Z, Uyarel H, Kasikcioglu H, Alper AT, Özay B, Bilsel T, Gül M, Öztürk R, Cam N. Metabolic syndrome as a predictor of non-dipping hypertension. Tohoku J Exp Med. Sep;210(1):57–66 (2006).

• Özay B, Okmen AS, Idiz M, Okmen E, Ketenci B, Yekeler I. Aorta-right atrial fistula after VSD operation. Thorac Cardiovasc Surg. Mar;55(2):122–123 (2007).

• Tartan Z, Orhan G, Kasikçioglu H, Uyarel H, Unal S, Özer N, Özay B, Çiloğlu F, Cam N. The role of paraoxonase (PON) enzyme in the extent and severity of the coronary artery disease in type-2 diabetic patients. Heart Vessels. May;22(3):158–164 (2007).

• Orhan G, Özay B, Tartan Z, Kurc E, Ketenci B, Sargın M, Demirtaş MM, Aykut SA. Surgery of cardiac hydatid cysts. An experience of 39 years. Ann Cardiol Angeiol. May 30 (2007).

• Orhan G, Sargın M, Senay S, Yüksel M, Kurc E, Taşdemir M, Özay B, Aka SA. Systemic and myocardial inflammation in traditional and off-pump cardiac surgery. Tex Heart Inst J. 34(2):160–165 (2007).

• Guney MR, Ketenci B, Çimen S, Özay B, Aksoy S, Çınar B, Demirtaş MM. Management of cardiac hydatid cyst disease. Saudi Med J. Jan;29(1):150–152 (2008).

• Ketenci B, Enc Y, Özay B, Çimen S, Gunay R, Orhan G, Gurer O, Gorur A, Teskin O, Demirtaş MM. Myocardial injury during off-pump surgery. The effect of intraoperative risk factors. Saudi Med J. Feb;29(2):203–208 (2008).

• Özay B, Özer N, Ketenci B, Demirtaş M. Unsuspected location of a ventricular septal defect after blunt chest trauma. Thorac Cardiovasc Surg. Mar;56(2):110–111 (2008).

• Özay B, Kurc E, Orhan G, Yücel O, Senay S, Taşdemir M, Gorur A, Aka SA. Surgery of Carotid Body Tumour: 14 Cases in 7 Years. Acta Chir Belg, 108:107–111 (2008).

• Özay Batuhan, Sargın Murat, Abay Günselli, Ketenci Bülend, Kut Sinan, Enc Yavuz, Orhan Gökçen, Teskin Önder, Demirtaş Murat. The Severity Of Positional Mitral Regurgitation During Off-Pump Coronary Artery Bypassing. Heart Surg Forum;11(3):E145–E151 (2008).

• Nihat Özer, Burak Tangürek, Fatih Fırat, Songül Özer, Zeynep Tartan, Recep Öztürk, Batuhan Özay, Figen Çiloğlu, Hale Yılmaz, Neşe Cam. Effects of Drug-Eluting Stents on Systemic Inflammatory Response in Patients With Unstable Angina Pectoris Undergoing Percutaneous Coronary Intervention. Heart Vessels. Mar;23(2):75–82 (2008).

• Tamer Okay, Bülend Ketenci, Oya Üncü İmamoğlu, Bülent Aydemir, Abdullah Kemal Tüygün, Batuhan Özay, Fikri Yapıcı, Türkan Kutsioğlu Çoruh, Mahmut Murat Demirtaş. Simultaneous Open Heart Surgery and Pectus Deformity Correction. Surg Today. 38(7):592–596 (2008).

• Sanıoğlu S, Sokullu O, Şahin S, Özay B, Sargın M, Bilgen F. Endovascular Repair in Chronic Aortic Transection: A Report of Three Cases. Thorac Cardiovasc Surg. Jun;56(4):232–234 (2008).

• Sokullu O, Sanıoğlu S, Orhan G, Kut S, Hastaoglu O, Karaca P, Özay B, Ayoglu U, Bilgen F. New use of teflon to reduce bleeding in modified Bentall operation. Tex Heart Inst J. 35(2):147–151 (2008).

• Guney M, Ketenci B, Özay B, Özer N, Çimen S. Involvement of carotid artery by a chordoma: Surgical pitfall. Neurol India. Apr-Jun;56(2):213–214 (2008).

• Bülend Ketenci, M. Rasit Guney, Serdar Çimen, Rafet Gunay, Batuhan Özay, Recai Türkoğlu, Vedat Özkul, Alper Gorur, Murat Demirtaş. Management of concomitant coronary and advanced carotid artery disease. Saudi Med J. Jun;29(6):913–915 (2008).

• Tangürek B, Ketenci B, Özay B, Özer N, Yılmaz H, Sayar N, Çiloğlu F, Gorur A, Bolca O. Lack of association between angiotensin converting enzyme (ACE) gene polymorphism (I/D) and type I aortic dissection. J Int Med Res. Jul-Aug;36(4):714–720 (2008).

• Bülend Ketenci, Yavuz Enc, Batuhan Özay, Rafet Gunay, Serdar Çimen, Alper Gorur, Abdullah Kemal Tüygün, Murat Sargın, Sibel Sarı, Mahmut Murat Demirtaş. Peroperative Type I Aortic Dissection During Conventional Coronary Artery Bypass Surgery. Heart Surg Forum. 11(4):E231–E236 (2008).

• Deniz H, Sokullu O, Sanıoğlu S, Sargın M, Özay B, Ayoglu U, Aykut Aka S, Bilgen F. Risk factors for posterior ventricular rupture after mitral valve replacement: results of 2560 patients. Eur J Cardiothorac Surg. Oct;34(4):780–784 (2008).

• Iyigun T, Teskin O, Enc Y, Cakmak M, Iyigun M, Keser S, Camur G, Komurcu G, Sargın M, Özay B, Dagsali S. Does the level of soluble intercellular adhesion molecule 1 predict myocardial injury before cardiac markers increase? Heart Surg Forum. Dec;11(6):E352–E356 (2008).

• Sanıoğlu S, Sokullu O, Özay B, Güllü AU, Sargın M, Albeyoğlu S, Özgen A, Bilgen F. Safety of unilateral antegrade cerebral perfusion at 22 degrees C systemic hypothermia. Heart Surg Forum;11(3):E184–E187 (2008).

• Karpuzoğlu OE, Özay B, Şener T, Aydın NB, Ketenci B, Aksu T, Gerçekoglu H, Demirtaş M. Comparison of minimally invasive direct coronary artery bypass and off-pump coronary artery bypass in single-vessel disease. Heart Surg Forum. Jan;12(1):E39–E43 (2009).

• Ketenci B, Tüygün AK, Görur A, Biçer M, Özay B, Gunay R, Guney MR, Sargın M, Çimen S, Demirtaş MM, Yekeler I. An approach to cultural adaptation and validation: the Intermittent Claudication Questionnaire. Vasc Med. May;14(2):117–122 (2009).

• Sanıoğlu S, Sokullu O, Arslan IY, Sargın M, Yılmaz M, Özay B, Tokoz H, Bilgen F. Comparison of unilateral antegrade cerebral perfusion at 16 degrees C and 22 degrees C systemic temperature. Heart Surg Forum. Apr;12(2):E65–E69 (2009).

• Sokullu O, Aydemir NA, Kurc E, Özay B, Bilgen F, Demirtaş M, Aka SA. Emergency management for critical left main coronary artery stenosis. Heart Surg Forum. Feb;14(1):E12–E17 (2011).

• Tüygün AK, Ketenci B, Günay R, Görür A, Güney MR, Biçer M, Tüygün A, Özay B, Çimen S, Demirtaş M, Yekeler I. Validity and reliability of VEINES-QOL/Sym questionnaire in chronic venous disorders. J Cardiovasc Surg (Torino). Jun;53(3):355–361 (2012).

• Bahceci Simsek I, Özay B. Retinal Precapillary Arteriolar Occlusion after Coronary Artery Bypass Grafting Surgery. Heart Surg Forum. Feb 17;19(1):E008–E011. doi:10.1532/hsf.1347

International Conference Presentations (Published in Proceedings)

• Teskin O, Keser S, Tuygun AK, Ketenci B, Çetemen Ş, Özay B, Dağsalı S. Atrial Fibrillation After Aortocoronary Bypass Graft. 51st International Congress of the European Society for Cardiovascular Surgery, June 28–July 1, Helsinki, Finland (2002).

• Ketenci B, Özay B, Çimen S, Teskin Ö, Enç Y, Orhan G, Demirtaş M. The assessment of cardiac enzymes in off-pump coronary artery bypass surgery. 51st International Congress of the European Society for Cardiovascular Surgery, June 28–July 1, Helsinki, Finland (2002).

• Ketenci B, Özay B, Çimen S, Ketenci ZB, Teskin Ö, Enç Y, Orhan G, Demirtaş M. Respiratory function tests in off-pump coronary artery bypass surgery. 51st International Congress of the European Society for Cardiovascular Surgery, June 28–July 1, Helsinki, Finland (2002).

• Ketenci B, Tuygun AK, Çimen S, Özay B, Enç Y, Teskin Ö, Demirtaş M. Factors affecting early outcomes of triple valve replacement. 51st International Congress of the European Society for Cardiovascular Surgery, June 28–July 1, Helsinki, Finland (2002).

• Ketenci B, Özay B, Çimen S, Enç Y, Teskin Ö, Orhan G, Demirtaş M. Aortoplasty technique for moderate dilatation of the ascending aorta due to aortic valve pathology. 51st International Congress of the European Society for Cardiovascular Surgery, June 28–July 1, Helsinki, Finland (2002).

• Tuygun AK, Ketenci B, Özay B, Tuygun AG, Teskin Ö, Enç Y, Demirtaş M. A rare form of aortic dissection: absence of intimal tear. 51st International Congress of the European Society for Cardiovascular Surgery, June 28–July 1, Helsinki, Finland (2002).

• Özay B, Ketenci B, Çelik S, Çimen S, Teskin Ö, Dağdeviren B, Tezel T, Demirtaş MM. Comparison of right ventricle function by tissue doppler imaging between patients with early and late closed atrial septal defects. 51st International Congress of the European Society for Cardiovascular Surgery, June 28–July 1, Helsinki, Finland (2002).

• Konuralp C, Ketenci B, Özay B, Idiz M, Şaşkın H, Tavlı M, Seki İ, Akkaya H, Kanca A. Effects Of Seasonal Variations on Coronary Artery Surgery. 51st International Congress of the European Society for Cardiovascular Surgery, June 28–July 1, Helsinki, Finland (2002).

• Özay B, Ketenci B, Enç Y, Çimen S, Çelik S, Teskin Ö, Demirtaş MM. Atrial septal defects over 40 years of age. 51st International Congress of the European Society for Cardiovascular Surgery, June 28–July 1, Helsinki, Finland (2002).

• Çimen S, Özkul V, Günay R, Ketenci B, Özay B, Abay G, Tüysüz E, Demirtaş M. Hemodynamic consequences of LAD-ITA revascularization. 12th Annual Meeting of the Asian Society for Cardiovascular Surgery, April 18–22, Istanbul, Turkey (2004).

• Terzi S, Sayar N, Özay B, Enç Y, Akbulut T, Unal Ş, Akgöz H, Yeşilçimen K, Çiçek S. Surgical treatment of atrial septal defect in adults: the effect of the age of operation on cardiopulmonary exercise test. 12th Annual Meeting of the Asian Society for Cardiovascular Surgery, April 18–22, Istanbul, Turkey (2004).

• Özay B, Çimen S, Günay R, Ketenci B, Tüysüz E, Görür A, Elibol A, Demirtaş M. Comparison of different strategies in patients undergoing coronary revascularization with or without simultaneous carotid endarterectomy. Is simultaneous operation necessary? ESCVS 54th International Congress, Athens, Greece, May 19–22 (2005).

• Ketenci B, Özay B, Çimen S, Günay R, Güney M, Sarı S, Canik S, Demirtaş M. Neocorda replacement in degenerative mitral valve disease without using prosthetic ring. ESCVS 54th International Congress, Athens, Greece, May 19–22 (2005).

• Enc Y, Karaca P, Ayoglu U, Aydemir N, Özay B, Camur G, Kurc E, Çiçek S. The acute cardioprotective effect of corticosteroids in myocardial ischemia-reperfusion injury occurring during cardiopulmonary bypass. ESCVS 54th International Congress, Athens, May 19–22 (2005).

• Özay B, Çimen S, Ketenci B, Günay R, Görür A, Elibol A, Kagan M, Demirtaş M. Coronary artery collateral pressure and postoperative complications during beating heart aorto-coronary bypass surgery. ESCVS 54th International Congress, Athens, Greece, May 19–22 (2005).

• Ketenci B, Çimen S, Özay B, Günay R, Çınar B, Güney M, Görür A, Demirtaş M. Beating heart surgery in patients with carotid lesions: is simultaneous operation necessary? WSCTS 15th World Congress, Vilnius, Lithuania, June 19–23 (2005).

• Çimen S, Özay B, Ketenci B, Günay R, Tüysüz E, Sarı S, Kagan M, Özkul V, Demirtaş M. Perioperative aortic dissection. WSCTS 15th World Congress, Vilnius, Lithuania, June 19–23 (2005).

• Çimen S, Günay R, Ketenci B, Özay B, Sarı S, Gorur A, Özkul V, Demirtaş M. Coronary artery pressure monitoring during beating heart aorto-coronary bypass surgery. WSCTS 15th World Congress, Vilnius, Lithuania, June 19–23 (2005).

• Günay R, Çimen S, Özay B, Ketenci B, Kagan M, Güney M, Özkul V, Demirtaş M. Peroperative arrhythmias and postoperative complications in coronary bypass surgery. WSCTS 15th World Congress, Vilnius, Lithuania, June 19–23 (2005).

• Günay R, Özer HO, Ketenci B, Özay B, Çimen S, Kayacıoğlu İ, Sarı S, Elibol A, Demirtaş M. Successfully operated giant cardiac pseudoaneurysm. 2nd Annual Congress on Update in Cardiology and Cardiovascular Surgery, September 20–24, Bodrum, Muğla, Turkey (2006).

• Ketenci B, Çimen S, Özay B, Günay R, Görür A, Sarı S, Yurtseven N, Abay G, Özyurt A, Kagan M, Canik S, Demirtaş M. Surgical strategy in patients with left ventricle dysfunction. 2nd Annual Congress on Update in Cardiology and Cardiovascular Surgery, September 20–24, Bodrum, Muğla, Turkey (2006).

• Çimen S, Ketenci B, Abay G, Özkul V, Özay B, Günay R, Tüysüz E, Görür A, Sarı S, Güney M, Canik S, Demirtaş M. Is carotid endarterectomy necessary in concomitant carotid and coronary artery surgery? 2nd Annual Congress on Update in Cardiology and Cardiovascular Surgery, September 20–24, Bodrum, Muğla, Turkey (2006).

• Özay B, Ketenci B, Günay R, Görür A, Sarı S, Elibol A, Çimen S, Demirtaş M. Aorta-right atrial fistula after VSD operation. 2nd Annual Congress on Update in Cardiology and Cardiovascular Surgery, September 20–24, Bodrum, Muğla, Turkey (2006).

• Ketenci B, Çimen S, Özay B, Enç Y, Günay R, Görür A, Demirtaş M. Myocardial injury during off-pump surgery: Risk factors. 2nd Annual Congress on Update in Cardiology and Cardiovascular Surgery, September 20–24, Bodrum, Muğla, Turkey (2006).

• Sargın M, Biçer M, Özay B, Kurc E, Taşdemir M, Yücel O, Orhan G, Aykut Aka S. Incidence of reactive thrombocytosis after CABG operations. 3rd Annual Congress on Update in Cardiology and Cardiovascular Surgery, November 28–December 2, Antalya, Turkey (2007).

• Biçer M, Orhan G, Sargın M, Özay B, Kurc E, Taşdemir M, Aykut Aka S. Effects of hormone replacement therapy on early results of coronary artery bypass surgery in postmenopausal women. 3rd Annual Congress on Update in Cardiology and Cardiovascular Surgery, November 28–December 2, Antalya, Turkey (2007).

• Goktaş A, Erdem ZG, Kaya A, Aslan N, Canli A, Demir K, Sargın M, Özay B. Effects of hemofiltration during cardiopulmonary bypass on blood transfusion in CABG patients. 3rd Annual Congress on Update in Cardiology and Cardiovascular Surgery, November 28–December 2, Antalya, Turkey (2007).

• Karpuzoğlu OE, Özay B, Şener T, Ketenci B, Aydın NB, Aksu T, Gerçekoğlu H, Demirtaş MM. Comparison of MIDCAB and off-pump coronary artery bypass grafting in single vessel disease. 3rd Annual Congress on Update in Cardiology and Cardiovascular Surgery, November 28–December 2, Antalya, Turkey (2007).

• Çimen S, Günay R, Ketenci B, Özay B, Özkul V, Elibol A, Biçer M, Demirtaş MM. Neochordae replacement in mitral valve insufficiency. 3rd Annual Congress on Update in Cardiology and Cardiovascular Surgery, November 28–December 2, Antalya, Turkey (2007).

• Ketenci B, Sarı S, Özay B, Günay R, Çimen S, Elibol A, Biçer M, Orhan G, Tangürek B, Demirtaş MM. Iatrogenic aortic dissection during cardiac surgery. 3rd Annual Congress on Update in Cardiology and Cardiovascular Surgery, November 28–December 2, Antalya, Turkey (2007).

• Çimen S, Özay B, Ketenci B, Günay R, Elibol A, Biçer M, Kagan M, Orhan G, Tangürek B, Demirtaş MM. Management of concomitant coronary and bilaterally carotid artery disease. 3rd Annual Congress on Update in Cardiology and Cardiovascular Surgery, November 28–December 2, Antalya, Turkey (2007).

• Çimen S, Ketenci B, Özay B, Günay R, Elibol A, Biçer M, Güney MR, Orhan G, Tangürek B, Demirtaş MM. Cardiac arrest and emergency reoperation in CABG. 3rd Annual Congress on Update in Cardiology and Cardiovascular Surgery, November 28–December 2, Antalya, Turkey (2007).

• Okay T, Ketenci B, Imamoglu O, Aydemir B, Tuygun AK, Özay B, Yapıcı F, Kudsioglu T, Demirtaş M. Simultaneously Performed Open Heart Surgery and Correction of Pectus Deformity. 18th World Congress, World Society of Cardio-Thoracic Surgeons, Greece (2008).

• Osman Eren Karpuzoğlu, Süleyman Tanrıverdi, Zeki Kılıç, Batuhan Özay. Interventional Treatment for Complicated Acute Type B Dissection. MIRC 2017, 3rd Minimal Invasive and Robotic Cardiac Surgery Congress, Istanbul, Turkey, May 12–14 (2017).

 International Books or Book Chapters

• Khonsari, Cardiac Surgery, Safeguards and Pitfalls in Operative Technique (Turkish Translation), ISBN: 9789752773165, Publication Date: 2010, Chapter: Aorta Coronary Bypass Grafting; Aortic Coarctation

• Turkish Society of Cardiovascular Surgery e-Book, Chapter: Coronary Artery Bypass Grafting in the Beating Heart

• Heart Valve Diseases, Chapter 13: Approach to Moderate Valve Pathologies in Surgical Revascularization Planning, 2022, ISBN: 978-625-8430-59-2, DOI: 10.37609/akya.1009

• Adult Congenital Heart Diseases, 2021, Assistant Editor, ISBN: 978-625-7354-87-5, DOI: 10.37609/akya.13

• Heart Valve Diseases Guide, 2020, Chapter 17: Infective Endocarditis Prophylaxis, Chapter 18: Acute Rheumatic Fever Prophylaxis, ISBN: 978-605-74899-0-6

National Peer-Reviewed Journal Articles

• Çimen S, Gerçekoğlu H, Çınar B, Kaplan M, Ketenci B, Özay B, Demirtaş M, Özler A. Experience with the sheathless intraaortic balloon. Çukurova University Journal of Health Sciences, 15:1–3 (2000)

• Çimen S, Sarıkaya S, Ketenci B, Kaplan M, Günay R, Özay B, Kut MS, Demirtaş M, Özler A. Transthoracic intraaortic balloon use. Gaziantep Medical Journal, 11:46–48 (2000)

• Çimen S, Kaplan M, Ketenci B, Özay B, Gerçekoğlu H, Kut MS, Demirtaş MM. Intraluminal patch repair of a saccular descending aortic aneurysm. Bursa Journal of Medical Sciences, 1–2:32–34 (2000)

• Teskin Ö, Yapıcı F, Enç Y, Özay B, Ketenci B, Demirtaş M, Dağsalı S, Özler A. Bentall procedure and modifications: early and late results. GKD Cer Derg., 8:579–583 (2000)

• Kaplan M, Demirtaş M, Çimen S, Özay B, Kut S, Kanca A, Özler A. Complication of Swan-Ganz catheter staying and knotting in right atrium suture line during open-heart surgery. Turkish Journal of Thoracic and Cardiovascular Surgery, April; 8(2):584–586 (2000)

• Çimen S, Kaplan M, Ketenci B, Eralp B, Özay B, Çınar B, Kaşıkçıoğlu AH, Özkul V, Demirtaş MM. Colon ischemia after abdominal aortic surgery. Göztepe Medical Journal, 16:151–153 (2001)

• Ketenci B, Çimen S, Ketenci ZB, Özay B, Kaşıkçıoğlu HA, Demirtaş M. Effects of off-pump coronary bypass operations on respiratory functions. Heybeliada Medical Bulletin, 7:12–16 (2001)

• Celik S, Dagdeviren B, Özay B, Gorgulu S, Yildirim A, Uslu N, Soylu Ö, Eren M, Demirtas M, Tezel T. Effects of surgical closure of secundum atrial septal defect on right and left ventricle functions: Tissue Doppler echocardiography study. MN-Cardiology Journal, 11:188–193 (2004)

• Süzer A, Enç Y, Karaca P, Çoruh T, Özay B, Kutlu H, Aykaç Z. Anti-inflammatory and cardioprotective effects of aprotinin at full-Hammersmith dose during cardiopulmonary bypass. Turkish Journal of Thoracic and Cardiovascular Anesthesia and Intensive Care, 11(3–4):112–117 (2005)

• Ketenci B, Enç Y, Özay B, Çine N, Çiçek S. Arrhythmia surgery. Türkiye Klinikleri Internal Medicine Sciences, 1(15):116–122 (2005)

• Çimen S, Özkul V, Özay B, Ketenci B, Güney M, Günay R, Tüysüz E, Dağ S, Demirtaş M. Carotid and coronary heart disease: is simultaneous operation necessary? Turkish Journal of Thoracic and Cardiovascular Surgery, Jan; 13(1):006–009 (2005)

• Özay B, Çelik S, Ketenci B, Teskin Ö, Yücel O, Sargın M, Çimen S, Demirtaş M. Should adult ASD patients be operated? Mid- and long-term results. Turkish Journal of Thoracic and Cardiovascular Surgery, April; 13(2):115–119 (2005)

• Çimen S, Akçar M, Özay B, Özkul V, Günay R, Ketenci B, Abay G, Demirtaş M. Posterior suture annuloplasty in reconstructive surgery of degenerative mitral valve insufficiency. Turkish Journal of Thoracic and Cardiovascular Surgery, Oct; 13(4):320–324 (2005)

• Ketenci B, Özay B, Güney M, Çimen S, Özkul V, Günay R, Görür A, Orhan G, Demirtaş M. Results of surgical revascularization techniques in ischemic cardiomyopathy. Cerrahpaşa Medical Journal, 37(3):81–91 (2006)

• Ketenci B, Orhan G, Özay B, Çimen S, Güney M, Günay R, Sarı S, Görür A, Gürer O, Demirtaş M. On-pump and off-pump coronary revascularization in women over 70. Cerrahpaşa Medical Journal, 37(4):131–136 (2006)

• Enç Y, Karaca P, Ayoğlu U, Aydemir N, Yücel O, Özay B, Çamur G, Kurç E, Çiçek S. The acute cardioprotective effect of glucocorticoid in myocardial ischemia-reperfusion injury occurring during cardiopulmonary bypass. Türkiye Klinikleri, 18:28–34 (2006)

• Orhan G, Biçer Y, Taşdemir M, Sokullu O, Şenay Ş, Özay B, Aykaç Z, Aka SA. Comparison of neurocognitive functions in patients undergoing cardiopulmonary bypass and beating-heart coronary surgery. Turkish Journal of Thoracic and Cardiovascular Surgery, Jan; 15(1):024–028 (2007)

• Orhan G, Sokullu O, Biçer Y, Şenay Ş, Yücel O, Özay B, Sargın M, Bilgen F, Aka SA. Effect of single clamp technique on stroke risk in coronary artery bypass surgery. Turkish Journal of Thoracic and Cardiovascular Surgery, Jan; 15(1):045–050 (2007)

• Enç Y, Aydemir NA, Yalçın Y, Özsoy D, Erdem A, Özay B, Biçer Y, Çiçek S. Tetralogy of Fallot: Early results of transatrial/transpulmonary approach. Turkish Journal of Thoracic and Cardiovascular Surgery, Apr; 15(2):118–122 (2007)

• Enç Y, Aydemir NA, Ayoğlu U, Yalçın Y, Polat TB, Özay B, Kutlu H, Görür A, Çiçek S. Complete atrioventricular septal defect repair: single-patch or double-patch? Turkish Journal of Thoracic and Cardiovascular Surgery, Jul; 15(3):207–211 (2007)

• Orhan G, Özay B, Sargın M, Biçer M, Kurç E, Taşdemir M, Aka SA. Effects of hormone replacement therapy on early outcomes of aorta-coronary graft bypass surgery in postmenopausal women. Turkish Journal of Thoracic and Cardiovascular Surgery, Oct; 15(4):269–274 (2007)

• Özay B, Ketenci B, Günay R, Çimen S, Demirtaş M. Atrial septal defect: Past, present, future. Cerrahpaşa Medical Journal, 38(4):172–175 (2007)

• Ketenci B, Yaşaroğlu M, Özay B, Aydemir B, Doğusoy I, Demirtaş M. Reconstruction with PTFE graft in superior vena cava syndrome due to fibrous mediastinitis. Cerrahpaşa Medical Journal, 38(3):99–101 (2007)

• Orhan G, Yapıcı N, Çoruh T, Ketenci B, Özay B, Taşdemir M, Aykaç Z, Aka SA. Factors affecting mortality in gastrointestinal complications after cardiopulmonary bypass. Turkish Journal of Thoracic and Cardiovascular Anesthesia and Intensive Care, 13(1):35–38 (2007)

• Enç Y, Aydemir N, Biçer Y, Yurtseven N, Orhan G, Özay B, Ayoğlu U, Görür A, Altın F, Çiçek S. Indications and outcomes of tracheostomy in pediatric postoperative cardiac intensive care. Turkish Journal of Thoracic and Cardiovascular Surgery, Jan; 16(1):024–028 (2008)

• Şenay Ş, Orhan G, Velioğlu A, Özay B, Sargın M, Taşdemir M, Yücel O, Kurç E, Aka SA. Changes in pulmonary function and bronchial nitric oxide release in cardiopulmonary bypass patients with normal and reduced respiratory capacity. Turkish Journal of Thoracic and Cardiovascular Surgery, Apr; 16(2):074–079 (2008)

• Kurç E, Sokullu O, Aydemir NA, Özay B, Sargın M, Aka SA. Emergency management for acute left main coronary artery total occlusion. Turkish Journal of Thoracic and Cardiovascular Surgery, Aug; 19(3):305–310 (2011)

Presentations at National Scientific Meetings and Published in Proceedings

• Kaplan M, Demirtaş M, Çimen S, Ketenci B, Özay B, Özler A. Use of cyanoacrylate tissue adhesive in cardiovascular surgery. VI. National Thoracic and Cardiovascular Surgery Congress, 21–25 Oct, Belek-Antalya (2000)

• Kaplan M, Demirtaş M, Çimen S, Özay B, Kanca A, Özler A. Intracavitary growing cardiac hydatid cysts. VI. National Thoracic and Cardiovascular Surgery Congress, 21–25 Oct, Belek-Antalya (2000)

• Teskin Ö, Yapıcı F, Enç Y, Özay B, Ketenci B, Demirtaş M, Dağsalı S, Özler A. Bentall procedure and modifications: early and late results. VI. National Thoracic and Cardiovascular Surgery Congress, 21–25 Oct, Belek-Antalya (2000)

• Kaplan M, Demirtaş M, Çimen S, Özay B, Kanca A, Aykaç Z, Özler A. Complication of Swan-Ganz catheter withdrawal after open-heart surgery. VI. National Thoracic and Cardiovascular Surgery Congress, 21–25 Oct, Belek-Antalya (2000)

• Çimen S, Kaplan M, Gerçekoğlu H, Ketenci B, Özay B, Demirtaş M, Özler A. Coronary arteriovenous fistulas. VI. National Thoracic and Cardiovascular Surgery Congress, 21–25 Oct, Belek-Antalya (2000)

• Çimen S, Kaplan M, Ketenci B, Özay B, Erdinler İ, Tezel T, Demirtaş M, Özler A. Hourglass right ventricle due to purulent pericarditis. VI. National Thoracic and Cardiovascular Surgery Congress, 21–25 Oct, Belek-Antalya (2000)

• Çimen S, Kaplan M, Gerçekoğlu H, Ketenci B, Özay B, Demirtaş M, Özler A. Intraluminal repair of saccular descending aortic aneurysm. VI. National Thoracic and Cardiovascular Surgery Congress, 21–25 Oct, Belek-Antalya (2000)

• Özay B, Ketenci B, Çimen S, Günay R, Ketenci ZB, Gürer O, Demirtaş MM. Effects of off-pump coronary artery surgery on respiratory functions. IX. Congress of Thoracic and Cardiovascular Anesthesia and Intensive Care, 27–31 Oct, Kemer-Antalya (2001)

• Ketenci B, Özay B, Erzengin N, Bank M, Çimen S, Kut S, Gürer O, İçer Ü, Demirtaş M. Monitoring serum troponin during off-pump coronary artery surgery. IX. Congress of Thoracic and Cardiovascular Anesthesia and Intensive Care, 27–31 Oct, Kemer-Antalya (2001)

• Günay R, Çimen S, Yurtseven N, Güney M, Özay B, Tüysüz E, Sarı S, Ateş M, Abay G, Kağan M, Özkul V, Demirtaş M, Canik S. Effect of perioperative rhythm disturbances on mortality and morbidity. XII. Congress of Thoracic and Cardiovascular Anesthesia and Intensive Care, 27–31 Nov, Kemer-Antalya (2004)

• Çimen S, Yurtseven N, Günay R, Özay B, Güney M, Tüysüz E, Sarı S, Ateş M, Abay G, Kağan M, Özkul V, Demirtaş M, Canik S. Hemodynamic deterioration and early graft revision after CABG. XII. Congress of Thoracic and Cardiovascular Anesthesia and Intensive Care, 27–31 Nov, Kemer-Antalya (2004)

• Özyurt A, Özkul V, Yurtseven N, Abay G, Öztekin İ, Çelik M, Kurt M, Karakaş O, Günay R, Özay B, Çimen S, Demirtaş M, Canik S. Is COPD a risk factor in open-heart surgery? XII. Congress of Thoracic and Cardiovascular Anesthesia and Intensive Care, 27–31 Nov, Kemer-Antalya (2004)

• Günay R, Özer O, Ketenci B, Özay B, Çimen S, Kayacıoğlu İ, Tüysüz E, Sarı S, Elibol A, Demirtaş M. Successful repair of giant cardiac pseudoaneurysm. IX. National Turkish Cardiac Surgery Congress, 01–05 Nov, Belek-Antalya (2006)

• Ateş M, Kayacıoğlu İ, Günay R, Özay B, Demirtaş M, Yekeler İ. Outcomes of arterial cannulation via right subclavian artery in ascending aorta operations. IX. National Turkish Cardiac Surgery Congress, 01–05 Nov, Belek-Antalya (2006)

• Özay B, Çimen S, Günay R, Özkul V, Ketenci B, Tüysüz E, Görür A, Elibol A, Güney M, Kağan M, Abay G, Demirtaş M. Coronary revascularization results in low cardiac output patients. IX. National Turkish Cardiac Surgery Congress, 01–05 Nov, Belek-Antalya (2006)

• Ketenci B, Çimen S, Özkul V, Özay B, Günay R, Tüysüz E, Sarı S, Güney M, Kağan M, Canik S, Demirtaş M. Coronary revascularization in bilateral carotid artery disease. IX. National Turkish Cardiac Surgery Congress, 01–05 Nov, Belek-Antalya (2006)

• Ketenci B, Özay B, Çimen S, Günay R, Görür A, Demirtaş M. Unusual congenital coronary anomaly and myocardial ischemia. IX. National Turkish Cardiac Surgery Congress, 01–05 Nov, Belek-Antalya (2006)

• Tüysüz E, Çimen S, Ketenci B, Özay B, Sayar N, Günay R, Görür A, Sarı S, Elibol A, Demirtaş M. Comparison of surgical vs. medical treatment in angiographically unvisualized LAD disease. IX. National Turkish Cardiac Surgery Congress, 01–05 Nov, Belek-Antalya (2006)

• Tangürek B, Ketenci B, Özay B, Özer N, Asiltürk R, Görür A, Çimen S, Terzi S, Demirtaş M. Relationship between ACE gene polymorphism (I/D) and type-1 aortic dissections. IX. National Turkish Cardiac Surgery Congress, 01–05 Nov, Belek-Antalya (2006)

• Şahin S, Ketenci B, Özay B, Oktay M, Demirtaş MM. Rare complication during endovascular therapy: guidewire fracture. IX. National Turkish Cardiac Surgery Congress, 01–05 Nov, Belek-Antalya (2006)

• Göktaş A, Erdem ZG, Demir K, Kaya A, Kaya L, Aslan N, Sargın M, Özay B. How cardioplegic solution composition affects cardioplegia efficacy. X. National Turkish Cardiac Surgery Congress, Antalya (2008)

• Göktaş A, Demir K, Aslan N, Kaya A, Kaya L, Erdem ZG, Sargın M, Özay B. Effect of hemofiltration on blood and blood product transfusion during CPB in CABG patients. X. National Turkish Cardiac Surgery Congress, Antalya (2008)

• Sargın M, Biçer M, Kurç E, Albeyoğlu Ş, Tuygun AK, Özay B, Ketenci B, Bilgen F, Yekeler İ. Management of upper extremity thromboembolism in octogenarians. X. National Turkish Cardiac Surgery Congress, Antalya (2008)

• Özay B, Sokullu O, Sargın M, Biçer M, Ketenci B, Deniz H, Teskin Ö, Aka SA, Demirtaş M. Emergency approach to total left main coronary artery occlusion. X. National Turkish Cardiac Surgery Congress, Antalya (2008)

• Sargın M, Biçer M, Özay B, Kurç E, Taşdemir M, Yücel O, Gökçen O, Aka SA. Incidence of reactive thrombocytosis after CABG operations. X. National Turkish Cardiac Surgery Congress, Antalya (2008)

• Özay B, Sargın M, Abay G, Ketenci B, Biçer M, Kut S, Enç Y, Orhan G, Teskin Ö, Demirtaş M. Importance of positional mitral regurgitation during off-pump CABG. X. National Turkish Cardiac Surgery Congress, Antalya (2008)

• Özay B, Kurç E, Orhan G, Yücel O, Şenay Ş, Biçer M, Taşdemir M, Görür A, Aka SA. Surgical treatment of carotid body tumors. X. National Turkish Cardiac Surgery Congress, Antalya (2008)

• Çimen S, Günay R, Ketenci B, Özay B, Elibol A, Biçer M, İdiz M, Güney MR, Görür A, Demirtaş M, Yekeler İ. Perioperative graft patency measurement using flowmetry. X. National Turkish Cardiac Surgery Congress, Antalya (2008)

• Çimen S, Günay R, Ketenci B, Özay B, Biçer M, Ketenci ZB, İlhan S, Güney MR, Görür A, Demirtaş M. Effects of aortic and mitral valve operations on postoperative pulmonary function tests. X. National Turkish Cardiac Surgery Congress, Antalya (2008)

• Ketenci B, Çimen S, Günay R, Özay B, Aksu T, Biçer M, Güney MR, Görür A, Kağan M, Demirtaş M. Bilateral carotid artery disease and coronary surgery. X. National Turkish Cardiac Surgery Congress, Antalya (2008)

• Orhan G, Özay B, Sargın M, Biçer M, Kurç E, Taşdemir M, Aka SA. Effect of hormone replacement therapy on early outcomes of aorta-coronary bypass surgery in postmenopausal women. X. National Turkish Cardiac Surgery Congress, Antalya (2008)

• Sanioğlu S, Sokullu O, Aslan İY, Sargın M, Yılmaz M, Özay B, Toköz H, Bilgen F. Comparison of unilateral antegrade cerebral perfusion at 16°C vs 22°C. X. National Turkish Cardiac Surgery Congress, Antalya (2008)

• Osman Eren Karpuzoğlu, Süleyman Tanrıverdi, Zeki Kılıç, Batuhan Özay. Chimney EVAR for type 1 endoleak. XIV. National Turkish Cardiac Surgery Congress, Antalya (2016)

• Osman Eren Karpuzoğlu, Tansel Türkoğlu, Batuhan Özay. Endovascular repair of mycotic aneurysm in immunosuppressed patient: a novel method. XVIII. National Vascular and Endovascular Surgery Congress & IX. National Phlebology Congress, Girne, TRNC, 9–12 Nov 2017 (Poster)

• Osman Eren Karpuzoğlu, Süleyman Tanrıverdi, Batuhan Özay. Successful endovascular intervention in internal iliac aneurysm. XVIII. National Vascular and Endovascular Surgery Congress & IX. National Phlebology Congress, Girne, TRNC, 9–12 Nov 2017 (Poster)

• Osman Eren Karpuzoğlu, Süleyman Tanrıverdi, Batuhan Özay. Soft tissue tumor mimicking recurrent pseudoaneurysm/hematoma after radial angiography. XVIII. National Vascular and Endovascular Surgery Congress & IX. National Phlebology Congress, Girne, TRNC, 9–12 Nov 2017 (Poster)

• Osman Eren Karpuzoğlu, Erol Sağatlı, Zeki Kılıç, Batuhan Özay. Interventional treatment of concomitant SMA and CIA stenosis with drug-coated balloon. XVIII. National Vascular and Endovascular Surgery Congress & IX. National Phlebology Congress, Girne, TRNC, 9–12 Nov 2017 (Poster)

• Osman Eren Karpuzoğlu, Zeki Kılıç, Batuhan Özay. Interventional treatment under Argatroban anticoagulation in diabetic patient with heparin-induced thrombocytopenia. XVIII. National Vascular and Endovascular Surgery Congress & IX. National Phlebology Congress, Girne, TRNC, 9–12 Nov 2017 (Poster)

• Osman Eren Karpuzoğlu, Süleyman Tanrıverdi, Mehmet Babüroğlu, Batuhan Özay. Endovascular coil embolization in traumatic vascular injuries. XVIII. National Vascular and Endovascular Surgery Congress & IX. National Phlebology Congress, Girne, TRNC, 9–12 Nov 2017 (Poster)

• Osman Eren Karpuzoğlu, Mehmet Babüroğlu, Zeki Kılıç, Batuhan Özay. Stepwise endovascular treatment of May-Thurner and pelvic congestion syndrome. XVIII. National Vascular and Endovascular Surgery Congress & IX. National Phlebology Congress, Girne, TRNC, 9–12 Nov 2017 (Poster)

• Osman Eren Karpuzoğlu, Batuhan Özay. Behçet patient presenting with May-Thurner syndrome and recurrent thromboses. XVIII. National Vascular and Endovascular Surgery Congress & IX. National Phlebology Congress, Girne, TRNC, 9–12 Nov 2017 (Poster)