title: Initial experiences of young cardiologists with balloon-expandable transcatheter aortic valve implantation in Turkey: a case series of eleven patients.
abstract: OBJECTIVE
  Surgical aortic valve replacement is the gold standard of treatment for symptomatic severe aortic stenosis in all age groups. Transcatheter aortic valve implantation (TAVI), which is performed by senior interventional cardiologists in experienced centers, is an alternative therapy for patients considered to be at high risk for surgery. The aim of this study is to describe the procedural success and short-term results of TAVI performed by young interventional cardiologists in Trabzon, Turkey.
  
  
  METHODS
  Eleven patients, 10 women and 1 man, who were treated by balloon-expandable TAVI through transfemoral access between January 2012 and April 2012, were included in the study. The clinical and echocardiographic parameters of the patients were compared before and three months after the procedure.
  
  
  RESULTS
  The median calculated logistic EuroSCORE and Society of Thoracic Surgeons (STS) score of patients were 28% (24%-34%) and 14% (12%-18%), respectively. The median age of the patients was 83 years and ranged from 80-85 years. The mean aortic valve pressure gradient and the aortic valve area were significantly improved after TAVI. The mean aortic valve pressure gradient was 48 (46-53) mmHg before treatment and 20 (16-23) mmHg after treatment (p=0.003). The aortic valve area was 0.65 (0.55-0.70) cm(2) before treatment and 1.7 (1.6-1.8) cm(2) after treatment. The functional status of the patients improved from NYHA class 3-4 to NYHA class 1-2. Intraprocedural mortality was not observed, and the overall 3 month mortality was 9%.
  
  
  CONCLUSIONS
  TAVI can be performed successfully by young cardiologists. In centers with high patient loads, we encourage young cardiologists to perform TAVI if they have received the appropriate training and to form specialized, cooperating teams with a focus on TAVI.
authors.affiliation: Department of Cardiology, Ahi Evren Chest and Cardiovascular Surgery Education and Research Hospital, Trabzon, Turkey.
authors.forename: Tayyar
authors.initials: T
authors.lastname: Gokdeniz
authors.affiliation: Department of Cardiology, Ahi Evren Chest and Cardiovascular Surgery Education and Research Hospital, Trabzon, Turkey.
authors.forename: Ahmet Cagri
authors.initials: AC
authors.lastname: Aykan
authors.affiliation: Department of Cardiology, Ahi Evren Chest and Cardiovascular Surgery Education and Research Hospital, Trabzon, Turkey.
authors.forename: Mustafa Tarik
authors.initials: MT
authors.lastname: Agac
authors.affiliation: Department of Cardiology, Ahi Evren Chest and Cardiovascular Surgery Education and Research Hospital, Trabzon, Turkey.
authors.forename: Ali Ihsan
authors.initials: AI
authors.lastname: Parlar
authors.affiliation: Department of Cardiology, Ahi Evren Chest and Cardiovascular Surgery Education and Research Hospital, Trabzon, Turkey.
authors.forename: Orhan Veli
authors.initials: OV
authors.lastname: Dogan
authors.affiliation: Department of Cardiology, Ahi Evren Chest and Cardiovascular Surgery Education and Research Hospital, Trabzon, Turkey.
authors.forename: Sukru
authors.initials: S
authors.lastname: Celik
keywords: Aortic stenosis; first experience; transcatheter aortic valve implantation