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R: US for OB/GynFrom: acord@tin.it ("acord@tin.it")Thu Jun 15 16:35:51 2006
Heart and nuchal lucency they tie together very well as long as they are expression of a defect of the cardiovascular system-the same applies to the yolk sac ,its volume and the thickness of its walls- which are mostly made of tiny vessels-it's just a matter of time. Big vascular defects are unable to reach a certain gestational age and the pregnancy ends earlier-smaller ones allow the embryo to grow and reach the NT age then they somehow show up either with a cardiac defect or an increase in NT or both-but at that gestational age the yolk sac is no more useful.Check it before and you'll find that an abnormal size and thickness always ends with an abortion or an altered NT and in the end all these epiphenomena are the expression of a defective vascularization-genetically determined?It would be intriguing to discover that fetuses that showed an abnormal NT are more easily affected by heart attacks once they've reached a mature age! I'm absolutely convinced of this! Dr.A.Corda ----Messaggio originale---- Da: James.Smeltzer@wellstar.org Data: 14-giu-2006 16.52 A: "Multiple recipients of list ULTRASOUND-HISTORY"<ultrasound-history@dns.obgyn. net> Ogg: US for OB/Gyn Hi! Check out the latest issue of US in OB/Gyn: http://www.ingentaconnect. com/content/jws/uog/2006/00000027/00000006 The thing I find most intriguing is the terrific tying together of the heart and nuchal lucency observations in Down Syndrome: Devore has seen a large right atrium in about 85 percent of Down Syndrome babies (pers comm). Now Falcon & al from nicolaides group finds TR in half the 10 to 13 week fetuses with Down Syndrome and correlates this finding with nuchal lucency in normal fetuses. The last finding diluted the power of the early fetal echo to independently detect Down syndrome, but it goes a long way to putting things together in the findings with this entity. Jim James S. Smeltzer, MD, FACOG, SMFM Consultant, Maternal Fetal Medicine Wellstar Physicians' Group Northwest Women's Care 787 Campbell Hill St Marietta GA 30060 James.Smeltzer@wellstar.org VM 678-290-3035 Off 770-528-0260 Page 404-318-3451
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