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posted by martyb on Thursday October 19 2017, @03:35AM   Printer-friendly
from the what-would-a-vampire-prefer? dept.

A study has found an increased chance of mortality of men who received blood donated from previously pregnant women:

Each time health care workers grab a pint of blood for an emergency transfusion, they make sure the donor and recipient have compatible blood types. But they do not pay attention to the donor's sex. A new study raises questions as to whether that should change.

In the first large study to look at how blood transfusions from previously pregnant women affect recipients' health, researchers discovered men under 50 were 1.5 times more likely to die in the three years following a transfusion if they received a red blood cell transfusion from a woman donor who had ever been pregnant. This amounts to a 2 percent increase in overall mortality each year. Female recipients, however, did not appear to face an elevated risk. The study [DOI: 10.1001/jama.2017.14825] [DX] of more than 42,000 transfusion patients in the Netherlands was published Tuesday in JAMA The Journal of the American Medical Association.

The American Red Cross and the researchers themselves were quick to say the study is not definitive enough to change the current practice of matching red blood cell donors to recipients. But if this explosive finding is confirmed with future studies, it could transform the way blood is matched—and it would suggest millions of transfusion patients worldwide have died prematurely. "If this turns out to be the truth, it's both biologically interesting and extremely clinically relevant," says Gustaf Edgren, an expert who was not involved in the study but co-wrote an editorial about it. "We certainly need to find out what's going on." Edgren, an associate professor of epidemiology at the Karolinska Institute and a hematologist at Karolinska University Hospital in Stockholm, says his own research [DOI: 10.1001/jamainternmed.2017.0890] [DX] suggests the donor's sex makes no difference to the transfused patient. "Our data is really not compatible with this finding," he says.

Also at Reuters, Medscape, and Stat News.


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  • (Score: 2) by rylyeh on Thursday October 19 2017, @08:59PM (2 children)

    by rylyeh (6726) <{kadath} {at} {gmail.com}> on Thursday October 19 2017, @08:59PM (#584877)

    The same amount of time it takes for a comment like this to be acceptable!

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  • (Score: 2) by frojack on Thursday October 19 2017, @09:22PM

    by frojack (1554) on Thursday October 19 2017, @09:22PM (#584897) Journal

    Hey, his user name is Woosh. You weren't expecting serious discourse were you?

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  • (Score: 1) by Woosh on Friday October 20 2017, @06:47PM

    by Woosh (6715) on Friday October 20 2017, @06:47PM (#585364)

    It doesn't have to be acceptable, only tolerable.
    #MeToo