There are differences between Men and Women biologically, such differences may extend to their blood also, most especially for pregnant women.
As shared in JAMA, Researchers studied over 30, 000 people who received transfused blood at six hospitals in a ten year period from 2005 through 2015. They monitored if their subjects had gotten blood from male or female donors and if female, they checked if they were pregnant or not. Then death rates were observed for these years.
The observed difference on the basis of donor type was that men who had received blood from women that were pregnant were more likely to die after a period of three years, contrary to men who were transfused with blood from men or women who were not pregnant. No risk or change was observed for women regardless of the received blood from men or from women, whether these women were pregnant or not. The obtained results were proven even after the severity of the disease that required the blood were taken into account.
Blood Transfusion Policies to Remain the Same
Past research had indicated that a change in the blood of women, mostly women who had been pregnant, may cause blood transfusions to be risky. This risk is known as TRALI an acronym for Transfusion Related Acute Lung Injury. TRALI is effected by the antibodies responsible for pregnancy in women. It is normal for TRALI to occur a brief period after transfusion, but the deaths reported in the study were observed for as much as three years after transfusion.
There is a chance that there are other currently unknown changes in the immune that are associated with pregnancy that is capable of altering the blood of mothers, the researchers opined. There also could be possible changes in Iron that could be used in the explanation of the outcomes of transfusion for pregnant women.
Experts suggest that the data gotten is insufficient to facilitate a change in the current policies of transfusion of blood, however, that the results call for more research in the area, so as to determine the role of gender and pregnancy in the outcomes of post-transfusion.