[Distribution of ABO groups in patients undergoing heart surgery].

The authors examined retrospectively the AB0 blood groups of 3982 patients who underwent cardiac surgery. There were 3392 cases of acquired heart disease, 590 congenital heart disease. They found significant difference in the total patients blood groups distribution in contrast to the control group. Further significant differences were found in the following cases: 1. total male patients, 2. acquired heart disease (both males and females), 3. isolated aortic valve disease (both males and females), 4. ischaemic heart disease (only males). In regard to the total patients group, their findings suggest significant difference between the males and females blood group distribution. This observation was peculiar to the acquired heart diseases only. They conclude that there is a positive correlation between AB0 blood groups and certain cardiac diseases, most notably, ischaemic heart disease in male patients.