Isfahan University of Medical Sciences Journal of Isfahan Medical School 1027-7595 37 545 2019 11 22 The Relationship of Blood Groups and in-Hospital Mortality of Patients with Thoracic Aortic Dissection The Relationship of Blood Groups and in-Hospital Mortality of Patients with Thoracic Aortic Dissection 1123 1128 15956 10.22122/jims.v37i545.11882 FA Ahmad Separham Associate Professor, Department of Cardiology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran 0000-0001-7011-9507 Reza Hajizadeh Assistant Professor, Department of Cardiology, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran 0000-0002-3458-3297 Abdolmohammad Ranjbar Assistant Professor, Department of Cardiology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran 0000-0003-2235-2149 Arvin Zabeh Student of Medicine, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran 0000-0001-8530-2638 Masoumeh Jahanafrouz Student of Medicine, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran 0000-0003-1581-1968 Journal Article 2019 06 07 Background: Acute aortic dissection is one of the catastrophic cardiovascular events with high in-hospital mortality. We aimed to assess the distribution of ABO blood groups in patients with acute aortic dissection, and to identify any association between their blood groups and in-hospital mortality.Methods: In cross-sectional study, 147 patients with confirmed acute aortic dissection by computed tomography angiography were included. According to the type of their blood groups, patients were divided into non-O (including A, B, and AB blood groups) and O blood groups. According to the tearing location, patient were divided into proximal (ascending aorta) and distal (descending aorta) dissection groups. The data were statistically analyzed using chi-square, Fisher's exact, and independent t tests.Findings: The mean age of patients was 58.77 ± 16.04 and 59.3 ± 15.32 years in non-O and O blood groups, respectively. From 147 patients with thoracic aortic dissection, 93 patients had non-O and 54 patients had O blood groups. A and O blood groups were seen more frequently among the patients. 54 patients (36.7%) died during their hospital course. Blood groups of AB [odds ratio (OR) = 3.52] and A (OR = 1.67) had stronger correlation with in-hospital mortality. Patients with blood group O had better in-hospital survival (OR = 0.40).Conclusion: It seems that patients with aortic dissection and O blood group have a better in-hospital survival than patients with non-O blood groups. Background: Acute aortic dissection is one of the catastrophic cardiovascular events with high in-hospital mortality. We aimed to assess the distribution of ABO blood groups in patients with acute aortic dissection, and to identify any association between their blood groups and in-hospital mortality.Methods: In cross-sectional study, 147 patients with confirmed acute aortic dissection by computed tomography angiography were included. According to the type of their blood groups, patients were divided into non-O (including A, B, and AB blood groups) and O blood groups. According to the tearing location, patient were divided into proximal (ascending aorta) and distal (descending aorta) dissection groups. The data were statistically analyzed using chi-square, Fisher's exact, and independent t tests.Findings: The mean age of patients was 58.77 ± 16.04 and 59.3 ± 15.32 years in non-O and O blood groups, respectively. From 147 patients with thoracic aortic dissection, 93 patients had non-O and 54 patients had O blood groups. A and O blood groups were seen more frequently among the patients. 54 patients (36.7%) died during their hospital course. Blood groups of AB [odds ratio (OR) = 3.52] and A (OR = 1.67) had stronger correlation with in-hospital mortality. Patients with blood group O had better in-hospital survival (OR = 0.40).Conclusion: It seems that patients with aortic dissection and O blood group have a better in-hospital survival than patients with non-O blood groups. https://jims.mui.ac.ir/article_15956_281bc81fb21d55e267f37af58d79801a.pdf