{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,5]],"date-time":"2026-11-05T04:45:09Z","timestamp":1793853909179,"version":"4.6.1"},"reference-count":16,"publisher":"Elsevier BV","issue":"2","license":[{"start":{"date-parts":[[2020,5,1]],"date-time":"2020-05-01T00:00:00Z","timestamp":1588291200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2020,5,1]],"date-time":"2020-05-01T00:00:00Z","timestamp":1588291200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"content-domain":{"domain":["ajogmfm.org","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["American Journal of Obstetrics & Gynecology MFM"],"published-print":{"date-parts":[[2020,5]]},"DOI":"10.1016\/j.ajogmf.2020.100093","type":"journal-article","created":{"date-parts":[[2020,2,19]],"date-time":"2020-02-19T20:05:09Z","timestamp":1582142709000},"page":"100093","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":11,"title":["Prolonged second stage of labor and risk of subsequent spontaneous preterm birth"],"prefix":"10.1016","volume":"2","author":[{"given":"Nasim C.","family":"Sobhani","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Arianna G.","family":"Cassidy","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marya G.","family":"Zlatnik","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Melissa G.","family":"Rosenstein","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"key":"10.1016\/j.ajogmf.2020.100093_bib1","doi-asserted-by":"crossref","first-page":"68","DOI":"10.1016\/j.siny.2015.12.011","article-title":"The epidemiology, etiology, and costs of preterm birth","volume":"21","author":"Frey","year":"2016","journal-title":"Semin Fetal Neonatal Med"},{"key":"10.1016\/j.ajogmf.2020.100093_bib2","doi-asserted-by":"crossref","first-page":"1566","DOI":"10.1542\/peds.2006-0860","article-title":"The contribution of preterm birth to infant mortality rates in the United States","volume":"118","author":"Callaghan","year":"2006","journal-title":"Pediatrics"},{"key":"10.1016\/j.ajogmf.2020.100093_bib3","doi-asserted-by":"crossref","first-page":"75","DOI":"10.1016\/S0140-6736(08)60074-4","article-title":"Epidemiology and causes of preterm birth","volume":"371","author":"Goldenberg","year":"2008","journal-title":"Lancet"},{"key":"10.1016\/j.ajogmf.2020.100093_bib4","doi-asserted-by":"crossref","first-page":"529","DOI":"10.1056\/NEJMra0904308","article-title":"The enigma of spontaneous preterm birth","volume":"362","author":"Muglia","year":"2010","journal-title":"N\u00a0Engl J Med"},{"key":"10.1016\/j.ajogmf.2020.100093_bib5","doi-asserted-by":"crossref","first-page":"254","DOI":"10.1056\/NEJMcp1103640","article-title":"Prevention of preterm parturition","volume":"370","author":"Iams","year":"2014","journal-title":"N\u00a0Engl J Med"},{"key":"10.1016\/j.ajogmf.2020.100093_bib6","doi-asserted-by":"crossref","first-page":"411","DOI":"10.1111\/j.1447-0756.2009.01152.x","article-title":"Cervical insufficiency following cesarean delivery after prolonged second stage of labor: experiences of two cases","volume":"36","author":"Koyama","year":"2010","journal-title":"J\u00a0Obstet Gynaecol Res"},{"key":"10.1016\/j.ajogmf.2020.100093_bib7","doi-asserted-by":"crossref","first-page":"787","DOI":"10.1016\/j.ajog.2006.06.069","article-title":"Risk factors for cervical insufficiency after term delivery","volume":"195","author":"Vyas","year":"2006","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajogmf.2020.100093_bib8","doi-asserted-by":"crossref","first-page":"535.e1","DOI":"10.1016\/j.ajog.2015.10.919","article-title":"Length of second stage and preterm birth in a subsequent pregnancy","volume":"214","author":"Levine","year":"2016","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajogmf.2020.100093_bib9","doi-asserted-by":"crossref","first-page":"467.e1","DOI":"10.1016\/j.ajog.2018.08.031","article-title":"Length of the second stage of labor and preterm delivery in risk in the subsequent pregnancy","volume":"219","author":"Qui\u00f1ones","year":"2018","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajogmf.2020.100093_bib10","doi-asserted-by":"crossref","first-page":"1181","DOI":"10.1097\/AOG.0b013e3182704880","article-title":"Preventing the first cesarean delivery: summary of a joint Eunice Kennedy Shriver National Institute of Child Health and Human Development, Society for Maternal-Fetal Medicine, and American College of Obstetricians and Gynecologists workshop","volume":"120","author":"Spong","year":"2012","journal-title":"Obstet Gynecol"},{"key":"10.1016\/j.ajogmf.2020.100093_bib11","doi-asserted-by":"crossref","first-page":"324","DOI":"10.1016\/S1701-2163(15)30282-6","article-title":"Prolonged second stage of labour and the risk of subsequent preterm birth","volume":"37","author":"Sciaky-Tamir","year":"2015","journal-title":"J\u00a0Obstet Gynaecol Can"},{"key":"10.1016\/j.ajogmf.2020.100093_bib12","doi-asserted-by":"crossref","first-page":"360.e1","DOI":"10.1016\/j.ajog.2014.09.035","article-title":"Does stage of labor at time of cesarean delivery affect risk of subsequent preterm birth?","volume":"212","author":"Levine","year":"2015","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajogmf.2020.100093_bib13","doi-asserted-by":"crossref","first-page":"63.e1","DOI":"10.1016\/j.ajog.2017.03.006","article-title":"Cesarean delivery in the second stage of labor and the risk of subsequent preterm birth","volume":"217","author":"Wood","year":"2017","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajogmf.2020.100093_bib14","doi-asserted-by":"crossref","first-page":"933","DOI":"10.1016\/j.ajog.2004.05.044","article-title":"How long is too long: does a prolonged second stage of labor in nulliparous women affect maternal and neonatal outcomes?","volume":"191","author":"Cheng","year":"2004","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajogmf.2020.100093_bib15","first-page":"1","article-title":"Pushing the limits: perinatal outcomes beyond prolonged second stage","author":"Gimovsky","year":"2019","journal-title":"J\u00a0Matern Fetal Neonatal Med"},{"issue":"suppl","key":"10.1016\/j.ajogmf.2020.100093_bib16","doi-asserted-by":"crossref","first-page":"S23","DOI":"10.1016\/j.ajog.2018.11.031","article-title":"Duration of second stage of labor induction and maternal\/perinatal outcomes in full-term low-risk nulliparas [SMFM abstract 28]","volume":"220","author":"Tita","year":"2019","journal-title":"Am J Obstet Gynecol"}],"container-title":["American Journal of Obstetrics & Gynecology MFM"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S2589933320300136?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S2589933320300136?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,11,11]],"date-time":"2025-11-11T23:46:16Z","timestamp":1762904776000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S2589933320300136"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,5]]},"references-count":16,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2020,5]]}},"alternative-id":["S2589933320300136"],"URL":"https:\/\/doi.org\/10.1016\/j.ajogmf.2020.100093","relation":{},"ISSN":["2589-9333"],"issn-type":[{"value":"2589-9333","type":"print"}],"subject":[],"published":{"date-parts":[[2020,5]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Prolonged second stage of labor and risk of subsequent spontaneous preterm birth","name":"articletitle","label":"Article Title"},{"value":"American Journal of Obstetrics & Gynecology MFM","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.ajogmf.2020.100093","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2020 Elsevier Inc. All rights reserved.","name":"copyright","label":"Copyright"}],"article-number":"100093"}}