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Prof. Dr. Cevat Naci Oner image

Department of pediatric cardiology

Prof. Dr. Cevat Naci Oner
pediatric cardiology

About the department

The department of pediatric cardiology at Memorial Sisli Hospital Istanbul specializes in diagnosing and treating congenital and acquired heart defects and diseases of the cardiovascular system in infants, children and adolescents. The competent team of the department has the most modern high-precision diagnostic methods that help identify pathologies in children at the earliest stages and even in the womb. Diagnosing the heart and blood vessels of the fetus in the womb using a precision ultrasound machine allows doctors to carefully study the heart's structure and identify more than 200 defects. The primary task of the department is the early detection of potentially dangerous changes in the cardiac system. The experience of the department's pediatric cardiologists, minimization of radiation exposure and technical innovations contribute to the maximum safety and effectiveness of the treatment of young children.

The department's medical team deals with the conservative treatment of congenital diseases such as Fallot's tetralogy, pulmonary artery stenosis and ventricular septal defect, and acquired conditions such as cardiac arrhythmias and heart infections. Each medical team member strives to provide quality medical care, create an atmosphere of complete safety, and develop trusting relationships with young patients. In addition to treatment, doctors pay special attention to teaching parents to recognize the early symptoms of cardiac diseases in children and conduct screening diagnostics in time.

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Treatment and diagnostic focus of the department


  • Aortic aneurysm and dissection
  • Aortic stenosis
  • Tetralogy of Fallot 
  • Pulmonary stenosis 
  • Ventricular septal defect
  • Arrhythmias
  • Atrioventricular canal
  • Atrial septal defect
  • Bacterial endocarditis
  • Hypertrophic or dilated cardiomyopathy
  • Rheumatic fever 
  • Kawasaki disease


  • Anamnesis 
  • Physical examination (auscultation) 
  • Echocardiography 
  • Cardiac CT scans 
  • Magnetic resonance imaging (MRI)
  • Electrocardiography (ECG) 
  • Diagnostic cardiac catheterization 
  • Digital angiography 
  • Measures of the blood pressure 
  • Positron emission tomography 
  • Complete blood count 
  • Doppler and duplex sonography 
  • Ventriculography 
  • Electrophysiological examination 
  • Transoesophageal echocardiography


  • Drug therapy
  • Balloon dilatation and stenting
  • Treatment of an open ductus arteriosus
  • Restoration of blood circulation in vascular occlusion
  • Implantation of pacemakers
  • High-frequency ablation
  • Implantation of defibrillators
  • Screening of cardiac diseases 
  • Other treatment services
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Doctor profile


  • 2004 - 2007 Pediatric Cardiology Specialization Training, Istanbul Faculty of Medicine Pediatric Cardiology Department, İstanbul, Turkey
  • 1993 - 1998 Pediatrics Specialization Training, Istanbul Faculty of Medicine Pediatric Cardiology Department, İstanbul, Turkey
  • 1987 - 1993 Medical Training, Istanbul Faculty of Medicine Pediatric Cardiology Department, İstanbul, Turkey


  • 2017 Specialist of Pediatric Cardiology, Memorial Sisli and Atasehir Hospital, İstanbul, Turkey
  • 2014 - 2017 Head of Department Responsible for Pediatric Cardiology Clinic, Instabul Yeni Yuzyil University Gop Hospital Pediatrics Department, İstanbul, Turkey
  • 2008 - 2014 Chief of Pediatric Cardiology Clinic, Kosuyolu Cardiology Hospital Pediatric Cardiology Clinic, İstanbul, Turkey
  • 2004 - 2007 Academic Member, Instanbul Faculty of Medicine Pediatric cardiology Department, İstanbul, Turkey
  • 2000 - 2004 Academic Member, Trakya University Faculty of Medicine Pediatrics Department, Edirne, Turkey
  • 1997 - 2000 Pediatrician, Kadikoy Sifa Hospital, İstanbul, Turkey

Awards, memberships, publications

  • Turkish Medical Association
  • National Pediatrics Association
  • Turkish Pediatrics Association
  • Pediatric Cardiology Association
  • Turkish Association of Pediatric Cardiology and Cardiac Surgery
  • Fenerbahçe Sports Club Member of Congress
  • 1993 İstanbul Faculty of Medicine Olcay Neyzi Best Pediatrics Student Encouragement Award
  • 2004 Cihat Tahsin Gürson Best Poster 2nd Prize
  • 2008 Wyeth XV. Scientific Research Contest Encouragement Award
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