{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,22]],"date-time":"2026-04-22T01:25:02Z","timestamp":1776821102838,"version":"3.51.2"},"reference-count":25,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2023,3,20]],"date-time":"2023-03-20T00:00:00Z","timestamp":1679270400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100006606","name":"Natural Science Foundation of Tianjin City","doi-asserted-by":"publisher","award":["21JCQNJC01640"],"award-info":[{"award-number":["21JCQNJC01640"]}],"id":[{"id":"10.13039\/501100006606","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Intl J Gynecology &amp; Obste"],"published-print":{"date-parts":[[2023,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>To quantify morphological changes of pelvic floor in primiparas with postpartum pelvic organ prolapse (POP) during the early postpartum period.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A total of 309 primiparas underwent pelvic floor magnetic resonance imaging (MRI) at 6\u2009weeks postpartum. Those primiparas diagnosed with postpartum POP by MRI criterion were followed up at 3 and 6\u00a0months postpartum. Normal primiparas were enrolled in the control group. The puborectal hiatus line, muscular pelvic floor relaxation line, levator hiatus area, iliococcygeus angle, levator plate angle, uterus\u2010pubococcygeal line, and bladder\u2010pubococcygeal line were assessed on MRI. Longitudinal changes in pelvic floor measurements between the two groups were compared by repeated\u2010measures analysis of variance.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Compared with the control group, enlarged puborectal hiatus line, levator hiatus area, and RICA and decreased uterus\u2010pubococcygeal line were observed at rest in the POP group (all <jats:italic>P<\/jats:italic>\u00a0&lt;\u20090.05). All of the pelvic floor measurements were significantly different in the POP group compared with the control group at the maximum Valsalva maneuver (all <jats:italic>P<\/jats:italic>\u00a0&lt;\u20090.05). All of the pelvic floor measurements showed no significant change over time in both the POP and control groups (all <jats:italic>P<\/jats:italic>\u00a0&gt;\u20090.05).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Postpartum POP accompanied by poor pelvic floor support will persist in the early postpartum period.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ijgo.14718","type":"journal-article","created":{"date-parts":[[2023,2,22]],"date-time":"2023-02-22T12:35:05Z","timestamp":1677069305000},"page":"514-524","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Longitudinal changes in pelvic organ support among primiparas with postpartum pelvic organ prolapse: A follow\u2010up magnetic resonance imaging study"],"prefix":"10.1002","volume":"162","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5873-3659","authenticated-orcid":false,"given":"Yujiao","family":"Zhao","sequence":"first","affiliation":[{"name":"Department of Radiology, The First Central Clinical College Tianjin Medical University  Tianjin China"},{"name":"Department of Radiology, Tianjin First Central Hospital, School of Medicine Nankai University  Tianjin China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cheng","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Radiology, The First Central Clinical College Tianjin Medical University  Tianjin China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Can","family":"Cui","sequence":"additional","affiliation":[{"name":"Department of Radiology, Affiliated Jinhua Hospital Zhejiang University School of Medicine, Jinhua  Zhejiang China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaodong","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Radiology, Tianjin First Central Hospital, School of Medicine Nankai University  Tianjin China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qian","family":"Zhao","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynaecology Tianjin First Central Hospital  Tianjin China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2695-7890","authenticated-orcid":false,"given":"Wen","family":"Shen","sequence":"additional","affiliation":[{"name":"Department of Radiology, Tianjin First Central Hospital, School of Medicine Nankai University  Tianjin 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