Senol Yavuz1, Mesut Engin2, Burak Duman1, Yusuf Ata1. 1. Department of Cardiovascular Surgery, University of Health Sciences, Bursa Yuksek Ihtisas Training and Research Hospital, Mimar Sinan Town. Emniyet Street. Yıldırım, Bursa, Turkey. 2. Department of Cardiovascular Surgery, University of Health Sciences, Bursa Yuksek Ihtisas Training and Research Hospital, Mimar Sinan Town. Emniyet Street. Yıldırım, Bursa, Turkey. mesut_kvc_cor@hotmail.com.