{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,11,14]],"date-time":"2024-11-14T05:21:00Z","timestamp":1731561660541,"version":"3.28.0"},"reference-count":20,"publisher":"Wiley","issue":"12","license":[{"start":{"date-parts":[[2024,9,4]],"date-time":"2024-09-04T00:00:00Z","timestamp":1725408000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Ultrasound Medicine"],"published-print":{"date-parts":[[2024,12]]},"abstract":"<jats:sec><jats:title>Objectives<\/jats:title><jats:p>This study aims to explore the correlation between the angle of progression (AOP) and spontaneous vaginal delivery (SVD) for term nulliparous women before the onset of labor. Additionally, it evaluates the diagnostic efficacy of AOP in predicting SVD in term nulliparous women.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>In this retrospective observational study, data from nulliparous women without contraindications for vaginal delivery, with a singleton pregnancy \u226537\u2009weeks, and before the onset of labor were included. Transperineal ultrasound was performed to collect AOP. The date and mode of delivery were tracked, to assess the correlation between AOP and SVD in term nulliparous women. Receiver operating characteristic (ROC) curve analysis was used to evaluate the diagnostic efficacy of AOP in predicting SVD for term nulliparous women.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The SVD\u2010failure (SVD\u2010f) group exhibited a significantly lower AOP compared with the SVD group (88.43\u00b0 vs 95.72\u00b0, <jats:italic>P<\/jats:italic>\u2009&lt;\u2009.001). Logistic regression analysis revealed that AOP was associated with SVD in term nulliparous women (OR\u2009=\u20091.051). ROC curve analysis demonstrated that the area under the ROC curve with AOP 84\u00b0 as the threshold was 0.663, with a sensitivity of 85.25% and specificity of 43.18%. Considering a sensitivity and specificity of 90%, the dual cut\u2010off values for term nulliparous women for SVD were 81\u00b0 and 104\u00b0, respectively.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>A positive correlation was identified between AOP and SVD for nulliparous women after 37\u2009weeks and before the onset of labor. Notably, term nulliparous women with AOP exceeding 104\u00b0 exhibited a higher probability of SVD.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jum.16568","type":"journal-article","created":{"date-parts":[[2024,9,4]],"date-time":"2024-09-04T11:58:31Z","timestamp":1725451111000},"page":"2339-2344","update-policy":"http:\/\/dx.doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Predictive Value of Angle of Progression in Term Nulliparous Women"],"prefix":"10.1002","volume":"43","author":[{"given":"Jing","family":"Xu","sequence":"first","affiliation":[{"name":"Department of Ultrasound The Third Affiliated Hospital of Sun Yat\u2010Sen University  Guangzhou China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aohua","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Ultrasound The Third Affiliated Hospital of Sun Yat\u2010Sen University  Guangzhou China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhijuan","family":"Zheng","sequence":"additional","affiliation":[{"name":"Department of Ultrasound The Third Affiliated Hospital of Sun Yat\u2010Sen University  Guangzhou China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xinling","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Ultrasound The Third Affiliated Hospital of Sun Yat\u2010Sen University  Guangzhou China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2024,9,4]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/s0140-6736(09)61870-5"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/s0140-6736(18)31928-7"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/s0140-6736(18)31930-5"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1503\/cmaj.1032002"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2020.12.1212"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00404-022-06413-7"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.15931"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.6329"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.7521"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.7709"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.2010.02775.x"},{"key":"e_1_2_6_13_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.11195"},{"key":"e_1_2_6_14_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.19072"},{"key":"e_1_2_6_15_1","doi-asserted-by":"publisher","DOI":"10.3109\/14767058.2011.587057"},{"key":"e_1_2_6_16_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.6294"},{"key":"e_1_2_6_17_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.12378"},{"key":"e_1_2_6_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2019.09.045"},{"key":"e_1_2_6_19_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.8951"},{"key":"e_1_2_6_20_1","doi-asserted-by":"publisher","DOI":"10.1080\/14767058.2019.1666818"},{"key":"e_1_2_6_21_1","doi-asserted-by":"publisher","DOI":"10.1111\/jog.12798"}],"container-title":["Journal of Ultrasound in Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jum.16568","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,11,13]],"date-time":"2024-11-13T11:36:50Z","timestamp":1731497810000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/jum.16568"}},"subtitle":["A Comprehensive Study on Spontaneous Vaginal Delivery Correlation and Clinical Implications"],"short-title":[],"issued":{"date-parts":[[2024,9,4]]},"references-count":20,"journal-issue":{"issue":"12","published-print":{"date-parts":[[2024,12]]}},"alternative-id":["10.1002\/jum.16568"],"URL":"https:\/\/doi.org\/10.1002\/jum.16568","archive":["Portico"],"relation":{},"ISSN":["0278-4297","1550-9613"],"issn-type":[{"type":"print","value":"0278-4297"},{"type":"electronic","value":"1550-9613"}],"subject":[],"published":{"date-parts":[[2024,9,4]]},"assertion":[{"value":"2024-07-09","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2024-08-20","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2024-09-04","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}