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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 Obstructed labour ： ウィキペディア英語版 Obstructed labour Obstructed labour, also known as labour dystocia, is when, even though the uterus is contracting normally, the baby does not exit the pelvis during childbirth due to being physically blocked.〔 Complications for the baby include not getting enough oxygen which may result in death. It increases the risk of the mother getting an infection, having uterine rupture, or having post-partum bleeding. Long term complications for the mother include obstetrical fistula. Obstructed labour is said to result in prolonged labour, when the active phase of labour is longer than twelve hours.〔 The main causes of obstructed labour include: a large or abnormally positioned baby, a small pelvis, and problems with the birth canal. Abnormal positioning includes shoulder dystocia were the anterior shoulder does not pass easily below the pubic bone.〔 Risk factors for a small pelvis include malnutrition and a lack of exposure to sunlight causing vitamin D deficiency. It is also more common in adolescence as the pelvis may not have finished growing.〔 Problems with the birth canal include a narrow vagina and perineum which may be due to female genital mutilation or tumors.〔 A partograph is often used to track labour progression and diagnose problems.〔 This combined with physical examination may identify obstructed labour. The treatment of obstructed labour may require cesarean section or vacuum extraction with possible surgical opening of the symphysis pubis. Other measures include: keeping the women hydrated and antibiotics if the membranes have been ruptured for more than 18 hours. In Africa and Asia obstructed labor effects between two and five percent of deliveries. In 2013 it resulted in 19,000 deaths down from 29,000 deaths in 1990 (about 8% of all deaths related to pregnancy). Most deaths due to this condition occur in the developing world.〔 ==Cause== The main causes of obstructed labour include: a large or abnormally positioned baby, a small pelvis, and problems with the birth canal.〔 Abnormal positioning includes shoulder dystocia where the anterior shoulder does not pass easily below the pubic bone.〔 Risk factors for a small pelvis include malnutrition and a lack of exposure to sunlight causing vitamin D deficiency.〔 while problems with the birth canal include a narrow vagina and perineum which may be due to female genital mutilation or tumors.〔 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「Obstructed labour」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.