Chorionic Villus Sampling May Increase Risk Of Hemangiomas

Performing chorionic villus sampling (CVS) for prenatal diagnosis may lead to an increased rate of blood vessel malformations called hemangiomas in infants, according to a review in the November Journal of Craniofacial Surgery.

Dr. Lewis B. Holmes of Massachusetts General Hospital for Children, Boston, reviews past research on the possible link between CVS and the development of hemangiomas, limb defects, and certain other malformations.

According to Dr. Holmes, the findings suggest but do not prove some possible ways in which CVS might lead to “vascular disruption defects or hemangiomas.”

Chorionic villus sampling is a frequently performed prenatal test in which a small sample of the placenta is obtained early during pregnancy to look for evidence of genetic diseases. The procedure is generally considered safe.

However, in the past decade, several published reports have suggested “occasional fetal effects” in infants undergoing CVS, including an increased rate of hemangiomas.

Hemangiomas are common blood vessel malformations, caused by abnormal growth of the cells lining the blood vessels (endothelial cells). They range from small birthmarks to large malformations causing serious deformity.

Read more at Medical News Today

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