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| | eMedicine - Threatened Abortion : Article by Avi J Sklar, MD, FACOG, FACS, FRCSC (Site not responding. Last check: 2007-10-17) |
 | | Background: Threatened abortion is a clinically descriptive term that applies to women who are at less than 20 weeks' gestation, have vaginal spotting or bleeding, a closed cervical os, and, possibly, mild uterine cramping. |
 | | Threatened abortion is defined by the absence of passing/passed tissue and the presence of a closed cervical os. |
 | | In the majority of instances of threatened abortions that ultimately result in complete abortion, the embryo is already dead; thus, the administration of progesterone drugs is ineffective and only prolongs the natural course of abortion. |
| www.emedicine.com /med/topic3308.htm (3434 words) |
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