congenital malformation of spine, because of the lack of welding in the rear edges of intrauterine life. The severity of this disease is variable, ranging from mild (spina bifida), in which there are almost no signs of abnormality, in extreme cases, the column is completely open and serious neurologic impairment, with herniation of the meninges and part of the spinal cord . In Europe and the United States, spina bifida affects about 5% of the cases not treated surgically and usually die or remain severely disabled, even among children operated recovery is not, however, granted. The intake of folic acid by the mother during the first six weeks of pregnancy reduces the risk of spina bifida in the fetus. A fetus with spina bifida is marked by abnormal concentrations of alfafetoproteina, detected by amniocentesis or a simple examination of the maternal blood during pregnancy.
"Spina bifida," Microsoft ® Encarta ® Online Encyclopedia 2008http: / / it.encarta.msn.com © 1997-2008 Microsoft Corporation. All rights reserved.
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