About Me

Associate Professor, who studied medicine at Istanbul Faculty of Medicine. Dr. Onur Taşar started his cardiology career at Koşuyolu Heart Training and Research Hospital.

After working as an assistant at this center for 5 years, he qualified as a specialist and continued to work as a specialist cardiologist at the same center for a while. During this period, he performed the first intracoronary “Optical Coherence Tomography (IV-OCT)” applications and related scientific studies in our country.

Later, he worked as a cardiologist in charge of the angiography laboratory at the University of Health Sciences Elazığ Training and Research Hospital, where he was appointed, and then as an associate professor at the Elazığ City Hospital Cardiology Clinic within the same university.

Later, he was simultaneously appointed as a lecturer at the Faculty of Medicine of the University of Health Sciences and as the clinical chief of the Cardiology Clinic of Istanbul Gaziosmanpaşa Training and Research Hospital. He established the interventional cardiology department at the same center and initiated angiography, coronary balloon, stent and transcatheter valve interventions. During this period, he gave cardiology lessons to 5th grade students at the Faculty of Medicine of the University of Health Sciences.

He was successful in the theoretical proficiency exam of the European Association of Interventional Cardiology, which he took in December 2023, and then, as a result of the examination of the interventional operations he performed in the last 2 years, he was entitled to receive the “Full of EAPCI Board Certified” diploma, which is the Competency Accreditation of the European Association of Interventional Cardiology.

As a result of his scientific and educational activities in the international arena, he was elected as a “Full Member” to the Training and Accreditation Committee of the European Association of Interventional Cardiology in October 2024.

– Coronary Artery Disease

– Interventional Treatment of Coronary Artery Disease

– Heart Valve Diseases

– Interventional Treatment of Heart Valve Diseases

– Interventional Treatment of Congenital Heart Diseases in Adult Age

– Pacemakers

– Experience of more than 5000 interventional cases

– 11 years of professional experience

• 2022Hartcentrum OLV AALST/ BELGIUM – Intracoronary Imaging and Complex Coronary Interventions Training
• 2020Health Sciences University Elazığ Fethi Sekin City Hospital, Cardiology Clinic – Associate Professorship
• 2013Istanbul Kartal Koşuyolu Yüksek İhtisas Training and Research Hospital Cardiology
• 2007Istanbul University Istanbul Faculty of Medicine

• 2024 European Society of Cardiology Interventional Cardiology Training and Accreditation Committee – Full Member
• 2024 Acıbadem Health Group
• 2024 Acıbadem Health Group, Acıbadem Bakırköy Hospital Cardiology Clinic – Associate Professor Doctor
• 2022 – 2024 University of Health Sciences, Hamidiye Faculty of Medicine, Department of Cardiology, Associate Professor
• 2021 – 2024 University of Health Sciences, Istanbul Gaziosmanpaşa Training and Research Hospital, Cardiology Clinic – Associate Professor Doctor
• 2020 – 2021 University of Health Sciences, Elazığ City Training and Research Hospital, Cardiology Clinic – Associate Professor
• 2014 – 2020 Health Sciences University, Elazığ Training and Research Hospital, Cardiology Clinic – Cardiology Specialist
• 2013 – 2014 Istanbul Kartal Koşuyolu Yüksek İhtisas Training and Research Hospital, Cardiology Clinic – Cardiology Specialist
• 2008 – 2013 Istanbul Kartal Koşuyolu Yüksek İhtisas Training and Research Hospital, Cardiology Clinic – Assistant Doctor

• European Society of Cardiology (ESC)
• Turkish Cardiology Association (TKD)
• American College of Cardiology (ACC)(American Society of Cardiology)
• Turkish Medical Association
• Cardiovascular Academy Association (KVAD)
• European Association of Percutaneous Cardiovascular Interventions (EAPCI)
• European Association of Cardiovascular Imaging (EACVI)
• Istanbul Faculty of Medicine Alumni and Members Association (ITFMED)

• Insulin-like Growth Factor-1 Levels Predict Myocardial Injury and Infarction After Elective Percutaneous Coronary Intervention: An Optical Coherence Tomography Study.Advances in Interventional Cardiology. 2020 Jun;16(2):162-169. Tasar O, Kocabay G, Karabag Y, Karabay AK, Karabay CY, Kalkan S, Kirma C.
• Optical Coherence Tomography- Verified Longer Balloon Inflation Time May Provide Better Stent Apposition and Optimal Index Parameters.Herz. 2020 Jun;45(4):369-374. Tasar O, Karabay AK, Karabay CY, Kalkan S, Cinier G, Tanboga IH, Izgi Al, Kirma C.
• Predictors and Outcomes of No-reflow Phenomenon in Patients With Acute ST-Segment Elevation Myocardial Infarction Undergoing Primary Percutaneous Coronary Intervention.Coronary Artery Disease. 2019 Jun;30(4):270-276 Tasar O, Karabay A, Oduncu V, Kirma C.
• Assessment of The Relationship Between Reperfusion Success and T-Peak to T-End Interval in Patients With ST Elevation Myocardial Infarction Treated With Percutaneous Coronary Intervention.Anatolian Journal of Cardiology. 2018 Jan;19(l):50-57 Cagdas M, Karakoyun S, Rencuzogullari I, Karabag Y, Yesin M, Velibey Y, Artac I, Ilis D, Efe SC, Tasar O, Tanboga HI.
• Optical Coherence Tomography Guided Successful Fibrinolytic Treatment Without The Need For Percutaneous Coronary Intervention in A Patient With Acute ST-Segment Elevation Myocardial Infarction.Advances in Interventional Cardiology. 2018; 14(2): 199-201.
• Relationship Between R-wave Peak Time and No-reflow in ST Elevation Myocardial Infarction Treated with A Primary Percutaneous Coronary Intervention.Coronary Artery Disease. 2017 Jun;28(4):326-331. Cagdas M, Karakoyun S, Rencuzogullari I, Karabag Y, Yesin M, Uluganyan M, Gursoy MO, Artac I, Ilis D, Efe SC, Tasar O.
• P wave Peak Time; A Novel Electrocardiographic Parameter in The Assessment of Coronary No-reflow.Journal of Electrocardiology. 2017 Sep-Oct;50(5):584-590. Cagdas M, Karakoyun S, Rencuzogullari I, Karabag Y, Yesin M, Gursoy MO, Artac I, Ilis D, Efe SC, Tasar O, Karaca G.
• Predictors of Coronary Artery Aneurysm After Stent Implantation in Patients With ST- Segment Elevation Myocardial Infarction Treated With Primary Percutaneous Coronary Intervention.International Journal of Cardiovascular Imaging. 2014 Dec;308): 1435-44. Karabay CY, Kocabay G, Guler A, Oduncu V, Akgun T, Kalayci A, Kilicgedik A, Tasar O, Kalkan S, Erkol A, Izgi A, Esen AM, Kirma C.
• New and Important Guide in Acute Coronary Syndrome: Optical Coherence Tomography.Anatolian Journal of Cardiology. 2013 Mar; 13(2): 190 Tasar O, Basaran O, Eroglu E, Kirma C.
• Evaluation of Aneurysm After Coronary Stent Implantation by Optical Coherence Tomography.Polish Heart Journal. 2013;71 (6):659. Karabay CY, Kocabay G, Tasar O, Kalayci A, Guler A, Kirma C.