Elizabeth S Langen, Steven J Weiner, Steven L Bloom, Dwight J Rouse, Michael W Varner, Uma M Reddy, Susan M Ramin, Steve N Caritis, Alan M Peaceman, Yoram Sorokin, Anthony Sciscione, Marshall W Carpenter, Brian M Mercer, John M Thorp, Fergal D Malone, Jay D Iams
{"title":"宫颈外翻与无子宫妇女分娩时宫颈变化率的关系","authors":"Elizabeth S Langen, Steven J Weiner, Steven L Bloom, Dwight J Rouse, Michael W Varner, Uma M Reddy, Susan M Ramin, Steve N Caritis, Alan M Peaceman, Yoram Sorokin, Anthony Sciscione, Marshall W Carpenter, Brian M Mercer, John M Thorp, Fergal D Malone, Jay D Iams","doi":"10.1097/AOG.0000000000001299","DOIUrl":null,"url":null,"abstract":"<p><strong>Objective: </strong>To assess the association of cervical effacement with the rate of intrapartum cervical change among nulliparous women.</p><p><strong>Methods: </strong>We conducted a secondary analysis of a prospective trial of intrapartum fetal pulse oximetry. For women who had vaginal deliveries, interval-censored regression was used to estimate the time to dilate at 1-cm intervals. For each given centimeter of progressive cervical dilation, women were divided into those who had achieved 100% cervical effacement and those who had not. The analysis was performed separately for women in spontaneous labor and those who were given oxytocin.</p><p><strong>Results: </strong>A total of 3,902 women were included in this analysis, 1,466 (38%) who underwent labor induction, 1,948 (50%) who underwent labor augmentation (combined for the analysis), and 488 (13%) who labored spontaneously. For women in spontaneous labor, the time to dilate 1 cm was shorter for those who were 100% effaced starting at 4 cm of cervical dilation (P=.01 to <.001). For women who received oxytocin, the time to dilate 1 cm was shorter for those who were 100% effaced throughout labor (P<.001).</p><p><strong>Conclusion: </strong>The rate of cervical dilation among nulliparous women is associated with not only the degree of cervical dilation, but also with cervical effacement.</p><p><strong>Clinical trial registration: </strong>ClinicalTrials.gov, www.clinicaltrials.gov, NCT00098709.</p>","PeriodicalId":33173,"journal":{"name":"Sociological Jurisprudence Journal","volume":"1 1","pages":"489-495"},"PeriodicalIF":0.0000,"publicationDate":"2016-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5102500/pdf/","citationCount":"0","resultStr":"{\"title\":\"Association of Cervical Effacement With the Rate of Cervical Change in Labor Among Nulliparous Women.\",\"authors\":\"Elizabeth S Langen, Steven J Weiner, Steven L Bloom, Dwight J Rouse, Michael W Varner, Uma M Reddy, Susan M Ramin, Steve N Caritis, Alan M Peaceman, Yoram Sorokin, Anthony Sciscione, Marshall W Carpenter, Brian M Mercer, John M Thorp, Fergal D Malone, Jay D Iams\",\"doi\":\"10.1097/AOG.0000000000001299\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Objective: </strong>To assess the association of cervical effacement with the rate of intrapartum cervical change among nulliparous women.</p><p><strong>Methods: </strong>We conducted a secondary analysis of a prospective trial of intrapartum fetal pulse oximetry. For women who had vaginal deliveries, interval-censored regression was used to estimate the time to dilate at 1-cm intervals. For each given centimeter of progressive cervical dilation, women were divided into those who had achieved 100% cervical effacement and those who had not. The analysis was performed separately for women in spontaneous labor and those who were given oxytocin.</p><p><strong>Results: </strong>A total of 3,902 women were included in this analysis, 1,466 (38%) who underwent labor induction, 1,948 (50%) who underwent labor augmentation (combined for the analysis), and 488 (13%) who labored spontaneously. For women in spontaneous labor, the time to dilate 1 cm was shorter for those who were 100% effaced starting at 4 cm of cervical dilation (P=.01 to <.001). For women who received oxytocin, the time to dilate 1 cm was shorter for those who were 100% effaced throughout labor (P<.001).</p><p><strong>Conclusion: </strong>The rate of cervical dilation among nulliparous women is associated with not only the degree of cervical dilation, but also with cervical effacement.</p><p><strong>Clinical trial registration: </strong>ClinicalTrials.gov, www.clinicaltrials.gov, NCT00098709.</p>\",\"PeriodicalId\":33173,\"journal\":{\"name\":\"Sociological Jurisprudence Journal\",\"volume\":\"1 1\",\"pages\":\"489-495\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-03-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5102500/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Sociological Jurisprudence Journal\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1097/AOG.0000000000001299\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sociological Jurisprudence Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1097/AOG.0000000000001299","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Association of Cervical Effacement With the Rate of Cervical Change in Labor Among Nulliparous Women.
Objective: To assess the association of cervical effacement with the rate of intrapartum cervical change among nulliparous women.
Methods: We conducted a secondary analysis of a prospective trial of intrapartum fetal pulse oximetry. For women who had vaginal deliveries, interval-censored regression was used to estimate the time to dilate at 1-cm intervals. For each given centimeter of progressive cervical dilation, women were divided into those who had achieved 100% cervical effacement and those who had not. The analysis was performed separately for women in spontaneous labor and those who were given oxytocin.
Results: A total of 3,902 women were included in this analysis, 1,466 (38%) who underwent labor induction, 1,948 (50%) who underwent labor augmentation (combined for the analysis), and 488 (13%) who labored spontaneously. For women in spontaneous labor, the time to dilate 1 cm was shorter for those who were 100% effaced starting at 4 cm of cervical dilation (P=.01 to <.001). For women who received oxytocin, the time to dilate 1 cm was shorter for those who were 100% effaced throughout labor (P<.001).
Conclusion: The rate of cervical dilation among nulliparous women is associated with not only the degree of cervical dilation, but also with cervical effacement.
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