{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,23]],"date-time":"2026-06-23T03:47:40Z","timestamp":1782186460728,"version":"3.54.5"},"reference-count":19,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2026,5,28]],"date-time":"2026-05-28T00:00:00Z","timestamp":1779926400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,5,28]],"date-time":"2026-05-28T00:00:00Z","timestamp":1779926400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Obstet and Gynaecol"],"published-print":{"date-parts":[[2026,6]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Aim<\/jats:title>\n                    <jats:p>To examine the association between third\u2010stage duration and total blood loss in women with retained placenta. Secondary analyses were performed to explore clinical factors associated with postpartum hemorrhage (PPH).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This retrospective cohort study included women with singleton vaginal deliveries at \u2265\u200922 gestational weeks between 2019 and 2024 complicated by retained placenta. The association between third\u2010stage duration and total blood loss was assessed using Spearman's correlation. Multivariable logistic regression analysis was used to explore factors associated with PPH. Blood loss and third\u2010stage duration were descriptively compared between cases with and without manual removal of the placenta (MROP).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Among 4543 vaginal deliveries, 47 (1.0%) cases of retained placenta were identified, of which 27 (57.4%) developed PPH. Total blood loss positively correlated with third\u2010stage duration (Spearman's\n                      <jats:italic>\u03c1<\/jats:italic>\n                      \u2009=\u20090.488,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001). In exploratory multivariable analysis, assisted reproductive technology (ART) pregnancy (adjusted odds ratio [aOR], 18.50; 95% confidence interval [CI], 3.28\u2013104.0) and third\u2010stage duration (per 30\u2009min: aOR, 1.86; 95% CI, 1.10\u20133.16) were associated with PPH, although the estimates were imprecise. MROP was performed in 32 patients (68.1%) at physician discretion. Third\u2010stage duration did not differ between groups, but greater blood loss was observed in cases in which MROP was performed.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Prolonged third\u2010stage duration was associated with greater blood loss in women with retained placenta and may reflect the overall clinical course rather than an isolated causal factor. ART pregnancy was also associated with PPH.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/jog.70337","type":"journal-article","created":{"date-parts":[[2026,5,29]],"date-time":"2026-05-29T01:41:26Z","timestamp":1780018886000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Association Between Third\u2010Stage Duration and Postpartum Hemorrhage in Women With Retained Placenta"],"prefix":"10.1111","volume":"52","author":[{"given":"Fumika","family":"Shimizu","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology Showa Medical University School of Medicine  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5113-0110","authenticated-orcid":false,"given":"Tatsuya","family":"Arakaki","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Showa Medical University School of Medicine  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9982-6176","authenticated-orcid":false,"given":"Hiroko","family":"Takita","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Showa Medical University School of Medicine  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuka","family":"Yamashita","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Showa Medical University School of Medicine  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mayumi","family":"Kaneko","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Showa Medical University School of Medicine  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ryu","family":"Matsuoka","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Showa Medical University School of Medicine  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Akihiko","family":"Sekizawa","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology Showa Medical University School of Medicine  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,5,28]]},"reference":[{"key":"e_1_2_13_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/S2214-109X(24)00560-6"},{"key":"e_1_2_13_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.2008.01859.x"},{"key":"e_1_2_13_4_1","volume-title":"Intrapartum Care. 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