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In methods of abortion, dilation and evacuation (D&E also sometimes called dilation and extraction) is the dilation of the cervix and surgical evacuation of the contents of the uterus. It is a method of abortion as well as a therapeutic procedure used after miscarriage to prevent infection by ensuring that the uterus is fully evacuated. In various health care centers it may be called by different names: * D&E (Dilation and evacuation) * ERPOC (Evacuation of Retained Products of Conception) * TOP or STOP ((Surgical) Termination Of Pregnancy) D&E normally refers to a specific second trimester procedure.〔 However, some sources use the term D&E to refer more generally to any procedure that involves the processes of dilation and evacuation, which includes the first trimester procedures of manual and electric vacuum aspiration.〔 ==Reasons to use D&E== Dilation and evacuation (D&E) is one of the methods available for a second-trimester abortion. A D&E is done to completely remove all of the tissue in the uterus for an abortion in the second trimester of pregnancy. A D&E is recommended for women diagnosed in the second trimester with a fetus that has severe medical problems or abnormalities. A woman who is pregnant as a result of rape or incest may not confirm the pregnancy until the second trimester because of her emotional reaction to the traumatic cause of the pregnancy. A woman who doesn't have access to an affordable abortion specialist in her area or whose access is slowed by legal restrictions may take several weeks to have a planned abortion. When an abortion is delayed, a D&E may be necessary.〔http://www.webmd.com/women/dilation-and-evacuation-de-for-abortion〕 Approximately 11% of induced abortions are performed in the second trimester. In 2002, there were an estimated 142,000 second-trimester abortions in the United States.〔Guttmacher Institute: ("Facts On Induced Abortion in the United States" ), May 2006. Accessed May 2006.〕 The second trimester of pregnancy begins at 13 weeks gestation. For first-trimester and early second-trimester abortions, the pregnancy may be ended by vacuum aspiration alone. Sometimes in the second trimester, however, it becomes necessary to use instruments to remove the fetus. This instrumental procedure is normally what is meant when the term ''dilation and evacuation'' is used. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「dilation and evacuation」の詳細全文を読む スポンサード リンク
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