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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Rupture of membranes ： ウィキペディア英語版 Rupture of membranes Rupture of membranes (ROM) or amniorrhexis is a term used during pregnancy to describe a rupture of the amniotic sac. Normally, it occurs spontaneously at full term either during or at the beginning of labor. Rupture of the membranes is known colloquially as "breaking the water" or as one's "water breaking." A premature rupture of membranes (PROM) is a rupture of the amnion that occurs prior to the onset of labor. ==Effects== When the amniotic sac ruptures, production of prostaglandins increases and the cushioning between the fetus and uterus is decreased, both of which processes increase the frequency and intensity of contractions.〔(American Pregnancy Association > Inducing Labor ) Last Updated: 01/2007〕 On occasion, with the rupture of membranes, particularly if the head is not engaged, the umbilical cord may prolapse. A cord prolapse is an obstetrical emergency, as the descending head may block fetal-placental circulation. Once the membranes are ruptured, bacteria may ascend and could lead to amnionitis and fetal infection. 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「Rupture of membranes」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.