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Study: Prenatal chromosomal tests limited
Speaking in Barcelona, Spain, at the annual conference of the European Society of Human Genetics, Dr. Francesca Grati of the TOMA Laboratory, Busto Arsizio, Italy, said her research indicated current screening procedures are only able to detect half the total chromosomal abnormalities in women both younger and older than 35.
"Our research confirms, that it is fundamental for doctors to counsel patients about the limitations of current screening methods, so that they can make an informed decision on whether or not to undergo invasive diagnostic testing," Grati said in a statement.
The research included 84,847 amniocenteses -- amniotic fluid tests -- and 30,729 chorionic villus samplings testing of a small piece of placental tissue.
"Since our sample included a large number of women less than age 35 who underwent invasive prenatal diagnosis without any pathological indication to do so, we felt that the results could be useful in helping to inform pre-test counseling of such women," Grati said. "Up until now, the information we had came from smaller studies which only looked at the performance of these tests in detecting a limited number of chromosomal abnormalities."
Copyright 2008 by United Press International
This news arrived on: 06/04/2008
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