{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,8]],"date-time":"2026-03-08T17:07:34Z","timestamp":1772989654121,"version":"3.50.1"},"reference-count":33,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2025,5,3]],"date-time":"2025-05-03T00:00:00Z","timestamp":1746230400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2025,5,3]],"date-time":"2025-05-03T00:00:00Z","timestamp":1746230400000},"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":["Intl J Gynecology &amp;amp; Obste"],"published-print":{"date-parts":[[2025,10]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>The main study objective was to develop a novel shoulder dystocia (SD) prediction score using ultrasound\u2010based head\u2013perineum distance measured before an operative vaginal delivery (OVD).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This retrospective unicentric study (Lille, France) included all cases of OVD of singleton pregnancies from March 2019 to October 2020, with cephalic presentation and &gt; 37\u2009weeks of gestation, for which intrapartum sonography was performed. A multiclass\u2010penalized logistic regression model was used to develop the SD prognostic score, with missing values imputed by multiple imputations.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Among the 1708 patients with OVD, 773 who underwent ultrasound for head\u2013perineum distance were included. SD occurred in 99 cases (12.8%). The SD's predicting factors (and their weights) included the following: maternal age younger than 28\u2009years (3 points); multiparous (4 points); induced labor (4 points); gestational diabetes (3 points); and head\u2013perineum distance without pressure (\u226420\u2009mm [\u22122 points], using 21\u201330\u2009mm as reference, 31\u201340\u2009mm [2 points], 41\u201350\u2009mm [4 points], 51\u201360\u2009mm [6 points], and &gt;60\u2009mm [8 points]). Three patient risk subgroups were categorized as score range (occurrence percentage) as low risk: &lt; 3 (&lt; 10%), high risk: 3\u20138 (10%\u201320%), and very high risk: &gt; 8 (&gt; 20%).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The developed scoring system may help predict SD occurrence during OVD using five delivery room parameters. Replication with other populations and prospective cohorts will be needed for validation.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/ijgo.70184","type":"journal-article","created":{"date-parts":[[2025,5,3]],"date-time":"2025-05-03T14:09:42Z","timestamp":1746281382000},"page":"272-280","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Can shoulder dystocia be predicted before operative vaginal delivery using a score that includes ultrasonographic head\u2013perineum distance measurement?"],"prefix":"10.1002","volume":"171","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1985-3591","authenticated-orcid":false,"given":"Paul","family":"Renon","sequence":"first","affiliation":[{"name":"Department of Obstetrics CHU Lille  Lille France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Elodie","family":"Drumez","sequence":"additional","affiliation":[{"name":"Department of Biostatistics CHU Lille  Lille France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maeva","family":"Sanchez","sequence":"additional","affiliation":[{"name":"Department of Obstetrics CHU Lille  Lille France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Julien","family":"Labreuche","sequence":"additional","affiliation":[{"name":"Department of Biostatistics CHU Lille  Lille France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Charles","family":"Garabedian","sequence":"additional","affiliation":[{"name":"Department of Obstetrics CHU Lille  Lille France"},{"name":"University of Lille, ULR 2694, METRICS  Lille France"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,5,3]]},"reference":[{"key":"e_1_2_11_2_1","unstructured":"RCOG.Shoulder Dystocia (Green\u2010top Guideline No. 42). 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