Vural, Ünsal http://orcid.org/0000-0002-2338-8541
Ağlar, Ahmet Arif http://orcid.org/0000-0001-6352-7983
Article History
Received: 2 November 2018
Accepted: 11 June 2019
First Online: 17 June 2019
Ethics approval and consent to participate
: This study was performed at Dr. Siyami Ersek Thoracic and Cardiovascular Surgery Center Istanbul, Turkey. The study protocol was approved by the Health Sciences University Siyami Ersek Cardiovascular Surgery Hospital Ethics Committee decision dated 16/06/2015 and numbered (Number No: 28001928–501.07.01) and the patients were informed in writing. Informed consent was waived by Institutional Review Board owing to the study’s retrospective nature. Following the approval of the ethics committee, permission for access to raw data was provided by the data processing center with the permission of Chief Physician of The Dr. Siyami Ersek Thoracic and Cardiovascular Surgery. The methodology of the study was designed based on the tenets of the Helsinki Declaration.
: Not applicable.
: The authors declare that they have no competing interests.