{"title":"颈带的存在并不妨碍产程的正常进行","authors":"K. Imai","doi":"10.14740/JCGO.V8I2.549","DOIUrl":null,"url":null,"abstract":"Background: Nuchal cord is a common occurrence at birth, and its relation to some perinatal outcomes has been reported. The objective of this study was to investigate whether the presence of nuchal cord affects the normal progression of labor. Methods: We retrospectively examined women who delivered their babies at our clinic. The inclusion criteria were ≥ 37 weeks of gestation, cephalic presentation and a singleton pregnancy. The rates of induction/augmentation of labor, cesarean section/vacuum extraction and prolonged labor and the durations of the first and second stages of labor were compared between women with and without a nuchal cord, separately among nulliparous and multiparous women. Results: We enrolled 2,277 nulliparous and 2,548 multiparous women. A single nuchal cord was found in 559 (24.5%) nulliparous and 616 (24.2%) multiparous women. Multiple nuchal cords were found in 99 (4.3%) nulliparous and 104 (4.1%) multiparous women. Among nulliparous women, the use of vacuum extraction was higher in women with multiple nuchal cords; no such difference was observed among multiparous women. The rate of induction/augmentation of labor was similar between women with and without a nuchal cord in both nulliparous and multiparous women. Among nulliparous women, the median duration of the first stage of labor was 558, 635 and 550 min (P = 0.211), and that of the second stage of labor was 55, 59 and 60 min (P = 0.183), with no nuchal cord, a single nuchal cord and multiple nuchal cords, respectively. Among multiparous women, the corresponding values were 260, 270 and 256 min (P = 0.313) for the first and 13, 13 and 12 min (P = 0.616) for the second stage. The rate of prolonged labor was similar between nulliparous and multiparous women, regardless of the nuchal cord state. Conclusion: A nuchal cord is not associated with labor induction, nor does it hinder the normal progression of labor. J Clin Gynecol Obstet. 2019;8(2):48-53 doi: https://doi.org/10.14740/jcgo549","PeriodicalId":87296,"journal":{"name":"Journal of clinical gynecology and obstetrics","volume":"8 1","pages":"48-53"},"PeriodicalIF":0.0000,"publicationDate":"2019-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"The Presence of Nuchal Cord Does Not Hinder the Normal Progression of Labor\",\"authors\":\"K. Imai\",\"doi\":\"10.14740/JCGO.V8I2.549\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Background: Nuchal cord is a common occurrence at birth, and its relation to some perinatal outcomes has been reported. The objective of this study was to investigate whether the presence of nuchal cord affects the normal progression of labor. Methods: We retrospectively examined women who delivered their babies at our clinic. The inclusion criteria were ≥ 37 weeks of gestation, cephalic presentation and a singleton pregnancy. The rates of induction/augmentation of labor, cesarean section/vacuum extraction and prolonged labor and the durations of the first and second stages of labor were compared between women with and without a nuchal cord, separately among nulliparous and multiparous women. Results: We enrolled 2,277 nulliparous and 2,548 multiparous women. A single nuchal cord was found in 559 (24.5%) nulliparous and 616 (24.2%) multiparous women. Multiple nuchal cords were found in 99 (4.3%) nulliparous and 104 (4.1%) multiparous women. Among nulliparous women, the use of vacuum extraction was higher in women with multiple nuchal cords; no such difference was observed among multiparous women. The rate of induction/augmentation of labor was similar between women with and without a nuchal cord in both nulliparous and multiparous women. Among nulliparous women, the median duration of the first stage of labor was 558, 635 and 550 min (P = 0.211), and that of the second stage of labor was 55, 59 and 60 min (P = 0.183), with no nuchal cord, a single nuchal cord and multiple nuchal cords, respectively. Among multiparous women, the corresponding values were 260, 270 and 256 min (P = 0.313) for the first and 13, 13 and 12 min (P = 0.616) for the second stage. The rate of prolonged labor was similar between nulliparous and multiparous women, regardless of the nuchal cord state. Conclusion: A nuchal cord is not associated with labor induction, nor does it hinder the normal progression of labor. 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引用次数: 1
摘要
背景:新生儿颈索是一种常见的疾病,其与一些围产期结局的关系已被报道。本研究的目的是探讨颈带的存在是否会影响产程的正常进行。方法:我们回顾性调查了在我们诊所分娩的妇女。纳入标准为妊娠≥37周、头位妊娠和单胎妊娠。分别比较无颈带和无颈带产妇的引产/助产率、剖宫产/真空抽吸率、延长产程和第一、第二产程的持续时间。结果:我们招募了2277名未产妇女和2548名多产妇女。无产妇女559例(24.5%),多产妇女616例(24.2%)存在单颈索。无产妇女99例(4.3%)和多产妇女104例(4.1%)存在多颈索。在无产妇女中,有多条颈带的妇女使用真空抽吸的比例较高;在多胎妇女中没有观察到这种差异。无产和多产妇女中有和没有颈带的引产/助产率相似。无产妇女第一产程中位时间分别为558,635和550 min (P = 0.211),第二产程中位时间分别为55,59和60 min (P = 0.183),无颈带、单颈带和多颈带。在多产妇女中,第一阶段对应的值为260、270和256 min (P = 0.313),第二阶段对应的值为13、13和12 min (P = 0.616)。不论脐带状态如何,无产和多产妇女的产程延长率相似。结论:颈带与引产无关,也不妨碍正常的产程。临床妇产科杂志,2019;8(2):48-53 doi: https://doi.org/10.14740/jcgo549
The Presence of Nuchal Cord Does Not Hinder the Normal Progression of Labor
Background: Nuchal cord is a common occurrence at birth, and its relation to some perinatal outcomes has been reported. The objective of this study was to investigate whether the presence of nuchal cord affects the normal progression of labor. Methods: We retrospectively examined women who delivered their babies at our clinic. The inclusion criteria were ≥ 37 weeks of gestation, cephalic presentation and a singleton pregnancy. The rates of induction/augmentation of labor, cesarean section/vacuum extraction and prolonged labor and the durations of the first and second stages of labor were compared between women with and without a nuchal cord, separately among nulliparous and multiparous women. Results: We enrolled 2,277 nulliparous and 2,548 multiparous women. A single nuchal cord was found in 559 (24.5%) nulliparous and 616 (24.2%) multiparous women. Multiple nuchal cords were found in 99 (4.3%) nulliparous and 104 (4.1%) multiparous women. Among nulliparous women, the use of vacuum extraction was higher in women with multiple nuchal cords; no such difference was observed among multiparous women. The rate of induction/augmentation of labor was similar between women with and without a nuchal cord in both nulliparous and multiparous women. Among nulliparous women, the median duration of the first stage of labor was 558, 635 and 550 min (P = 0.211), and that of the second stage of labor was 55, 59 and 60 min (P = 0.183), with no nuchal cord, a single nuchal cord and multiple nuchal cords, respectively. Among multiparous women, the corresponding values were 260, 270 and 256 min (P = 0.313) for the first and 13, 13 and 12 min (P = 0.616) for the second stage. The rate of prolonged labor was similar between nulliparous and multiparous women, regardless of the nuchal cord state. Conclusion: A nuchal cord is not associated with labor induction, nor does it hinder the normal progression of labor. J Clin Gynecol Obstet. 2019;8(2):48-53 doi: https://doi.org/10.14740/jcgo549