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Re: 18 Week "Previa"From: R. Daniel Braun (rBraun@IUNET.IUPUI.EDU)Mon Sep 23 20:42:27 1996
CheriCNM@aol.com writes: My midwifery school mentor, the late James Green, MD, had a slightly different theory about "placental migration." He believed the likelier possibility is that the placenta, as it increases in size as the fetus grows and the pregnancy advances, develops assymetrically, in the direction of the richer endometrium toward the fundus, rather than continuing to grow symmetrically. He further believed that if you looked at the placentas which were identified in the second trimester as having been low-lying and/or partial previas you would find that many or most of them would exhibit a marginal cord insertion, rather than a more centrally located cord insertion. This doesn't really disagree with what I said. It also does not allow for a placenta to be attached across the cervical os and then migrate so that it is only attached on one side this idea of the firmly attached placenta moving around in the uterus is what bothers me. The concept of the eccentric cord placement is interesting. I doubt if you could prove it by a chart review, you would probably have to do a prospective study because who records that on the chart ?? Are there any residents looking for a research project lurking out there ??????
-- @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ R.Daniel Braun, MD FACOG "Money will buy you a fine dog, Clinical Professor but only love can make it wag its Department of OB/GYN tail" Indiana U. School of Medicine Richard "Kinky" Friedman OBGYN.net, International Representative, U.S. @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
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