{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T03:25:33Z","timestamp":1792121133552,"version":"4.4.0"},"reference-count":25,"publisher":"Elsevier BV","issue":"7","license":[{"start":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T00:00:00Z","timestamp":1782864000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T00:00:00Z","timestamp":1782864000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T00:00:00Z","timestamp":1782864000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-017"},{"start":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T00:00:00Z","timestamp":1782864000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T00:00:00Z","timestamp":1782864000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-012"},{"start":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T00:00:00Z","timestamp":1782864000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T00:00:00Z","timestamp":1782864000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-004"}],"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":[[2026,7]]},"DOI":"10.1016\/j.ajogmf.2026.101973","type":"journal-article","created":{"date-parts":[[2026,4,24]],"date-time":"2026-04-24T15:56:32Z","timestamp":1777046192000},"page":"101973","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":1,"title":["Risk of postpartum hemorrhage according to the ultrasound measurement of the lower uterine segment before delivery of women with a prior cesarean delivery: secondary exploratory research of the Lower Uterine Segment Trial"],"prefix":"10.1016","volume":"8","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8809-1733","authenticated-orcid":false,"given":"Boujenah","family":"Jeremy","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8566-015X","authenticated-orcid":false,"given":"Patrick","family":"Rozenberg","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"issue":"9","key":"10.1016\/j.ajogmf.2026.101973_bib0001","doi-asserted-by":"crossref","first-page":"55","DOI":"10.1186\/1471-2393-9-55","article-title":"Trends in postpartum hemorrhage in high resource countries: a review and recommendations from the International Postpartum Hemorrhage Collaborative Group","volume":"27","author":"Knight","year":"2009","journal-title":"BMC Pregnancy Childbirth"},{"key":"10.1016\/j.ajogmf.2026.101973_bib0002","doi-asserted-by":"crossref","first-page":"1104","DOI":"10.1111\/aogs.12950","article-title":"Increasing incidence of postpartum hemorrhage: the Dutch piece of the puzzle","volume":"95","author":"van Stralen","year":"2016","journal-title":"Acta Obstet Gynecol Scand"},{"key":"10.1016\/j.ajogmf.2026.101973_bib0003","doi-asserted-by":"crossref","first-page":"152","DOI":"10.1097\/AOG.0000000000004972","article-title":"Postpartum hemorrhage trends and outcomes in the United States, 2000-2019","volume":"141","author":"Corbetta-Rastelli","year":"2023","journal-title":"Obstet Gynecol"},{"key":"10.1016\/j.ajogmf.2026.101973_bib0004","doi-asserted-by":"crossref","first-page":"117","DOI":"10.1111\/aogs.13458","article-title":"Perinatal outcome in births after a previous cesarean section at high trial of labor rates","volume":"98","author":"Lehmann","year":"2019","journal-title":"Acta Obstet Gynecol Scand"},{"key":"10.1016\/j.ajogmf.2026.101973_bib0005","doi-asserted-by":"crossref","first-page":"173","DOI":"10.1097\/AOG.0000000000004998","article-title":"Trends in attempted and successful trial of labor after cesarean delivery in the United States from 2010 to 2020","volume":"141","author":"Bruno","year":"2023","journal-title":"Obstet Gynecol"},{"issue":"3","key":"10.1016\/j.ajogmf.2026.101973_bib0006","article-title":"Recent trends in term trial of labor after cesarean by number of prior cesarean deliveries","volume":"28","author":"Pineles","year":"2023","journal-title":"AJOG Glob Rep"},{"key":"10.1016\/j.ajogmf.2026.101973_bib0007","doi-asserted-by":"crossref","first-page":"1577","DOI":"10.1111\/1471-0528.15927","article-title":"Massive blood transfusion in relation to delivery: incidence, trends and risk factors: a population-based cohort study","volume":"126","author":"thurn","year":"2019","journal-title":"BJOG"},{"key":"10.1016\/j.ajogmf.2026.101973_bib0008","doi-asserted-by":"crossref","first-page":"203.e1","DOI":"10.1016\/j.ajog.2025.01.040","article-title":"Risk of postpartum hemorrhage according to the planned mode of delivery among pregnant women with one previous cesarean delivery: a secondary analysis of the lower uterine segment trial","volume":"233","author":"Boucherie","year":"2025","journal-title":"Am J Obstet Gynecol"},{"issue":"4","key":"10.1016\/j.ajogmf.2026.101973_bib0009","doi-asserted-by":"crossref","first-page":"414","DOI":"10.1111\/j.1600-0412.2012.01490.x","article-title":"Risk factors for blood transfusion at delivery in Finland","volume":"92","author":"Jakobsson","year":"2013","journal-title":"Acta Obstet Gynecol Scand"},{"key":"10.1016\/j.ajogmf.2026.101973_bib0010","doi-asserted-by":"crossref","first-page":"382","DOI":"10.1111\/aogs.13504","article-title":"Blood transfusion following intended vaginal birth after cesarean vs elective repeat cesarean section in women with a prior primary cesarean: a population-based record linkage study","volume":"98","author":"Pont","year":"2019","journal-title":"Acta Obstet Gynecol Scand"},{"key":"10.1016\/j.ajogmf.2026.101973_bib0011","doi-asserted-by":"crossref","first-page":"E556","DOI":"10.1503\/cmaj.170371","article-title":"Canadian Perinatal Surveillance System. Mode of delivery after a previous cesarean birth, and associated maternal and neonatal morbidity","volume":"190","author":"Young","year":"2018","journal-title":"CMAJ"},{"key":"10.1016\/j.ajogmf.2026.101973_bib0012","doi-asserted-by":"crossref","DOI":"10.1371\/journal.pmed.1002913","article-title":"Planned mode of delivery after previous cesarean section and short-term maternal and perinatal outcomes: a population-based record linkage cohort study in Scotland","volume":"16","author":"Fitzpatrick","year":"2019","journal-title":"PLoS Med"},{"key":"10.1016\/j.ajogmf.2026.101973_bib0013","doi-asserted-by":"crossref","first-page":"1325","DOI":"10.1111\/1471-0528.17063","article-title":"Risk of obstetric anal sphincter injury among women who birth vaginally after a prior caesarean section: a state-wide cohort study","volume":"129","author":"Uebergang","year":"2022","journal-title":"BJOG"},{"key":"10.1016\/j.ajogmf.2026.101973_bib0014","doi-asserted-by":"crossref","first-page":"224","DOI":"10.1111\/1471-0528.12444","article-title":"Risk of retained placenta in women previously delivered by caesarean section: a population-based cohort study","volume":"121","author":"Belachew","year":"2014","journal-title":"BJOG"},{"key":"10.1016\/j.ajogmf.2026.101973_bib0015","doi-asserted-by":"crossref","first-page":"337","DOI":"10.1111\/birt.12892","article-title":"A history of cesarean birth as a risk factor for postpartum hemorrhage even after successful planned vaginal birth","volume":"52","author":"Boujenah","year":"2025","journal-title":"Birth."},{"key":"10.1016\/j.ajogmf.2026.101973_bib0016","doi-asserted-by":"crossref","first-page":"399.e1","DOI":"10.1016\/j.ajog.2021.08.056","article-title":"Development of the utero-placental circulation in cesarean scar pregnancies: a case-control study","volume":"226","author":"Jauniaux","year":"2022","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajogmf.2026.101973_bib0017","doi-asserted-by":"crossref","first-page":"236","DOI":"10.1016\/j.ejogrb.2024.10.048","article-title":"Caesarean section scar: Histological analysis on hysterectomy specimen. A pilot study","volume":"303","author":"Maudot","year":"2024","journal-title":"Eur J Obstet Gynecol Reprod Biol"},{"key":"10.1016\/j.ajogmf.2026.101973_bib0018","doi-asserted-by":"crossref","first-page":"253.e1","DOI":"10.1016\/j.ajog.2021.08.005","article-title":"Groupe de Recherche en Obst\u00e9trique et Gyn\u00e9cologie. Evaluation of the usefulness of ultrasound measurement of the lower uterine segment before delivery of women with a prior cesarean delivery: a randomized trial","volume":"226","author":"Rozenberg","year":"2022","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajogmf.2026.101973_bib0019","doi-asserted-by":"crossref","first-page":"615","DOI":"10.1097\/01.ede.0000135174.63482.43","article-title":"A structural approach to selection bias","volume":"15","author":"Hern\u00e1n","year":"2004","journal-title":"Epidemiology"},{"issue":"4","key":"10.1016\/j.ajogmf.2026.101973_bib0020","doi-asserted-by":"crossref","first-page":"407","DOI":"10.1111\/aogs.13319","article-title":"How to investigate and adjust for selection bias in cohort studies","volume":"97","author":"Nohr","year":"2018","journal-title":"Acta Obstet Gynecol Scand"},{"key":"10.1016\/j.ajogmf.2026.101973_bib0021","doi-asserted-by":"crossref","DOI":"10.1016\/j.ypmed.2022.107127","article-title":"To curb research misreporting, replace significance and confidence by compatibility: a Preventive Medicine Golden Jubilee article","volume":"164","author":"Greenland","year":"2022","journal-title":"Prev Med"},{"key":"10.1016\/j.ajogmf.2026.101973_bib0022","doi-asserted-by":"crossref","first-page":"1666","DOI":"10.1111\/aogs.13943","article-title":"Placental location and risk of retained placenta in women with a previous cesarean section: A population-based cohort study","volume":"99","author":"Granfors","year":"2020","journal-title":"Acta Obstet Gynecol Scand"},{"key":"10.1016\/j.ajogmf.2026.101973_bib0023","doi-asserted-by":"crossref","first-page":"12","DOI":"10.1016\/j.ejogrb.2017.06.035","article-title":"Underlying mechanisms of retained placenta: evidence from a population based cohort study","volume":"216","author":"Greenbaum","year":"2017","journal-title":"Eur J Obstet Gynecol Reprod Biol"},{"key":"10.1016\/j.ajogmf.2026.101973_bib0024","doi-asserted-by":"crossref","first-page":"873","DOI":"10.1016\/j.ajog.2005.09.004","article-title":"The effect of dystocia and previous cesarean uterine scar on the tensile properties of the lower uterine segment","volume":"194","author":"Buhimschi","year":"2006","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajogmf.2026.101973_bib0025","doi-asserted-by":"crossref","first-page":"691","DOI":"10.1097\/01.AOG.0000236448.61465.95","article-title":"Biomechanical properties of the lower uterine segment above and below the reflection of the urinary bladder flap","volume":"109","author":"Buhimschi","year":"2007","journal-title":"Obstet Gynecol"}],"container-title":["American Journal of Obstetrics & Gynecology MFM"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S2589933326000741?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S2589933326000741?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T00:28:59Z","timestamp":1782865739000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S2589933326000741"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,7]]},"references-count":25,"journal-issue":{"issue":"7","published-print":{"date-parts":[[2026,7]]}},"alternative-id":["S2589933326000741"],"URL":"https:\/\/doi.org\/10.1016\/j.ajogmf.2026.101973","relation":{},"ISSN":["2589-9333"],"issn-type":[{"value":"2589-9333","type":"print"}],"subject":[],"published":{"date-parts":[[2026,7]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Risk of postpartum hemorrhage according to the ultrasound measurement of the lower uterine segment before delivery of women with a prior cesarean delivery: secondary exploratory research of the Lower Uterine Segment Trial","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.2026.101973","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2026 Elsevier Inc. All rights are reserved, including those for text and data mining, AI training, and similar technologies.","name":"copyright","label":"Copyright"}],"article-number":"101973"}}