{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T13:27:31Z","timestamp":1760189251399},"reference-count":0,"publisher":"Walter de Gruyter GmbH","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2012,6,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>\n                  <jats:bold>Objective:<\/jats:bold> To compare obstetrical and neonatal outcomes of vaginal deliveries complicated by shoulder dystocia, according to the length of second stage of labor.<\/jats:p>\n               <jats:p>\n                  <jats:bold>Methods:<\/jats:bold> We conducted a retrospective cohort study of 177 shoulder dystocia cases that were divided into three categories according to second stage duration (1\u201320, 21\u201359, 60\u2013180 min, respectively). The three categories were compared in terms of obstetric characteristics and neonatal outcomes. Statistical analysis utilized the \u03c7<jats:sup>2<\/jats:sup>-test and analysis of variance where appropriate. The odds ratios of brachial plexus injury and having a 5-min APGAR score &lt;7 across the second stage duration categories were calculated using logistic regression models that adjusted for potential confounders.<\/jats:p>\n               <jats:p>\n                  <jats:bold>Results:<\/jats:bold> The incidence of brachial plexus injury was 5.4% (1<jats:sup>st<\/jats:sup> category), 4.4% (2<jats:sup>nd<\/jats:sup> category) and 26.9% (3<jats:sup>rd<\/jats:sup> category); P&lt;0.01. The higher incidence of brachial plexus injury in the group where second stage lasted &gt;1 h was confirmed by logistic regression, with and without adjusting for confounders.<\/jats:p>\n               <jats:p>\n                  <jats:bold>Conclusions:<\/jats:bold> The incidence of brachial plexus injury increases with the length of second stage, even after controlling for confounders.<\/jats:p>","DOI":"10.1515\/jpm-2011-0253","type":"journal-article","created":{"date-parts":[[2012,6,8]],"date-time":"2012-06-08T15:27:34Z","timestamp":1339169254000},"page":"463-465","source":"Crossref","is-referenced-by-count":3,"title":["The impact of length of second stage of labor on shoulder dystocia outcomes: a retrospective cohort study"],"prefix":"10.1515","volume":"40","author":[{"given":"Vasiliki A.","family":"Moragianni","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michele R.","family":"Hacker","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Frank J.","family":"Craparo","sequence":"additional","affiliation":[{"name":"Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Abington Memorial Hospital, Abington, PA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"374","published-online":{"date-parts":[[2012,3,29]]},"container-title":["Journal of Perinatal Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.degruyter.com\/document\/doi\/10.1515\/jpm-2011-0253\/xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.degruyter.com\/document\/doi\/10.1515\/jpm-2011-0253\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,3,14]],"date-time":"2023-03-14T03:20:53Z","timestamp":1678764053000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.degruyter.com\/document\/doi\/10.1515\/jpm-2011-0253\/html"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2012,3,29]]},"references-count":0,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2012,2,14]]},"published-print":{"date-parts":[[2012,6,1]]}},"alternative-id":["10.1515\/jpm-2011-0253"],"URL":"https:\/\/doi.org\/10.1515\/jpm-2011-0253","relation":{},"ISSN":["1619-3997","0300-5577"],"issn-type":[{"value":"1619-3997","type":"electronic"},{"value":"0300-5577","type":"print"}],"subject":[],"published":{"date-parts":[[2012,3,29]]}}}