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Re: Amniocentesis and alternativesFrom: Roberta (anonymous@obgyn.net)Tue, 18 Mar 1997 02:11:12 -0600 (CST)
At Mon, 17 Mar 1997, Emily wrote: > >I have about an alternative procedure (less invasive?) than >Amnio - called TBS or something like that. > >Could someone tell me more about it, it's pros and cons vs. amnio? Emily, Are you refering to CVC? I found this on the web and these links: Chorionic Villus Sampling (CVS) CVS was developed for prenatal genetic testing about ten years ago. This test can be performed earlier in the pregnancy (10 to 11 weeks) than amniocentesis and takes only a few days to obtain results. However, it poses a slightly higher risk of miscarriage and does not offer as much information as amniocentesis. The test is performed with an ultrasound guided transcervical catheter or transabdominal needle that is passed into the developing placenta. Fragments of the developing placenta are withdrawn through a syringe. Chromosome analysis can be formed on the tissue samples and DNA can be extracted from them for molecular testing. http://www.obgyn.upenn.edu/History/cvs.html http://noah.cuny.edu/pregnancy/march_of_dimes/testing/cvsinfo.html http://www.storksite.com/public/medical/mrchorionic.html http://www.kumc.edu/GEC/wwwgene/cvsabd.html http://www.cpdx.com/cpdx/cvs.htm http://www.givf.com/cvs_amnio1.html http://www.obgyn.upenn.edu/genetics/inforforamnandcvs.html http://babynet.ddwi.com/tlc/pregnancy/cvsinfo.html I hope this helps :-) Roberta
-- Roberta Speyer President and CEO Elecomm Internet Applications Founders of OBGYN.net http://www.obgyn.net
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