Aim: Aortic dissection is still an important cause of both mortality and morbidity. Many factors affect surgical outcomes in patients operated for type A aortic dissection. Sufficient identification of these factors will affect the success of the treatment. Methods: Preoperative, intraoperative, and postoperative data of 140 patients who were diagnosed with type A aortic dissection between January 2006 and December 2016 were retrospectively reviewed from patient records and hospital information management system records. Quantative parameters between groups were compared with Student t or Mann-Whitney U tests, and qualitative data were compared with Chi-square test. Results: The mean age of the patients who comprised 31 (22.2%) female and 109 (77.8%) male was 57.1 ± 12.3 (min: 27 to max: 84). The majority of patients underwent isolated ascending aorta replacement or hemiarchus replacement with ascending aorta (%70). Antegrade cerebral perfusion (ACP) and rarely retrograde cerebral perfusion (RCP) were used as the brain preservation method. Total mortality in all patients was 37 (26.4%). The systolic pressure that was below 90 mmHg at the time of admission, the presence of major neurological deficits and past cardiac surgical history had a significant impact on mortality (p<0.05). In patients with mortality, perfusion time inotropic needs and intensive care hospitalization time were statistically significantly higher (p<0.05). The duration of intensive care unit and mortality were significantly higher in the RCP group compared to the patients receiving ACP (p=0.02, p=0.04, respectively). Conclusion: Determining of factors affecting mortality in type A aortic dissections in larger patient populations and taking precautions for these factors may be effective in reducing mortality and morbidity