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Preoperative blood typing may not be needed for some pediatric surgeries
Date:9/23/2013

Certain pediatric surgeries carry such low risk of serious blood loss that clinicians can safely forgo expensive blood typing and blood stocking before such procedures, suggest the results of a small study by researchers at the Johns Hopkins Children's Center.

The finding, published ahead of print in the journal Pediatric Anesthesia, was accompanied by a list of 10 operations with "zero" transfusion risk, according to the investigators who reviewed the records of thousands of pediatric surgeries performed at The Johns Hopkins Hospital over 13 months.

Unnecessary pre-emptive blood-type testing and blood stocking can not only inflate the overall cost of care, but squander vital supplies when any unused blood expires and cannot be restocked for future use, the researchers say.

"We knew anecdotally that just-in-case blood typing and ordering are often unnecessary and wasteful but we wanted to know precisely when we may be able to safely skip them," says study lead investigator Allison Fernndez, M.D., a pediatric anesthesiologist at All Children's Hospital Johns Hopkins Medicine in St. Petersburg, Fla. Fernndez conducted the research as a pediatric anesthesiology fellow at the Johns Hopkins Children's Center in 2012.

The research showed that blood transfusions were not needed in more than 97 percent of the 8,620 pediatric non-cardiac surgeries performed at Johns Hopkins during the study period. Of the 8,380 patients for whom a transfusion was unnecessary, 707 underwent preliminary blood typing and 420 of them underwent additional cross-matching, a procedure in which the recipient's blood is further tested for compatibility with the donor's blood. In 10 cases, the pre-ordered blood units reached a temperature that made them unsafe for future use and were thrown away. The total price tag for the additional tests and unused blood was nearly $60,000, the researchers say.

The Johns Hopkins team mined the data t
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Contact: Ekaterina Pesheva
epeshev1@jhmi.edu
410-502-9433
Johns Hopkins Medicine
Source:Eurekalert

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