{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,7]],"date-time":"2026-04-07T22:34:02Z","timestamp":1775601242156,"version":"3.50.1"},"reference-count":29,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2023,10,30]],"date-time":"2023-10-30T00:00:00Z","timestamp":1698624000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Obstet and Gynaecol"],"published-print":{"date-parts":[[2024,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objectives<\/jats:title><jats:p>The aim of this study was to evaluate the relationship between the cervix and the threat of preterm labor in singleton pregnancies between gestational weeks less than 37 and greater than 37\u2009weeks in correlation with utero\u2010cervical angle (UCA) and cervical length (CL) measurements.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>We conducted a prospective cohort study with UCA and CL measurements in patients with threatened preterm labor (TPL). Primary outcome was differences in UCA and CL measurements in relationship to maternal characteristics and perinatal outcome between groups. Secondary outcome evaluated measurement results and influencing factors for delivery within 7\u2009days, between 1 and 4\u2009weeks and beyond 4\u2009weeks.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Overall 152 patients were divided into as study\/preterm group (&lt;37\u2009weeks; <jats:italic>n<\/jats:italic>\u2009=\u200956) and the control\/term group (\u226537\u2009weeks; <jats:italic>n<\/jats:italic>\u2009=\u200996). Mean gestational age at admission was similar in both groups (30.98\u2009\u00b1\u20092.83 vs. 30.36\u2009\u00b1\u20092.63\u2009weeks, <jats:italic>p<\/jats:italic>\u2009=\u20090.149) with similar CL (33.9\u2009\u00b1\u20096.34 vs. 32.02\u2009\u00b1\u20098.88\u2009mm, <jats:italic>p<\/jats:italic>\u2009=\u20090.132), but wider UCA in the preterm group (81.65\u2009\u00b1\u200916.81\u00b0 vs. 99.21\u2009\u00b1\u200922.33\u00b0, <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001). Multivariate logistic regression analysis for preterm delivery was significant for nulliparity and UCA measurement. The factor for delivering before 37 gestational weeks within 7\u2009days was the gestational week at admission (<jats:italic>p<\/jats:italic>\u2009=\u20090.046). UCA and CL measurements were statistically significant for distinguishing patients for delivery within 7\u2009days and beyond 4\u2009weeks (<jats:italic>p<\/jats:italic>\u2009=\u20090.001 for CL and <jats:italic>p<\/jats:italic>\u2009=\u20090.0001 for UCA). NPV was found 92.5, 92.2, and 92.3 for UCA &gt;105\u00b0, CL \u226430\u2009mm, and Bishop score &gt;3, respectively.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Combined measurement of TV UCA and CL represents stronger predictors for sPTB ultrasonographically, demonstrating the uterocervical sub\u2010segment maturation before the active onset of labor.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jog.15823","type":"journal-article","created":{"date-parts":[[2023,10,30]],"date-time":"2023-10-30T23:43:12Z","timestamp":1698709392000},"page":"65-74","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Assessment of <scp>utero\u2010cervical<\/scp> angle and cervical length as predictors for threatened preterm delivery in singleton pregnancies"],"prefix":"10.1111","volume":"50","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2166-8344","authenticated-orcid":false,"given":"Nazli","family":"Korkmaz","sequence":"first","affiliation":[{"name":"Department of Gynecology and Obstetrics Demiroglu Bilim University Istanbul  Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7580-9179","authenticated-orcid":false,"given":"Huseyin","family":"Kiyak","sequence":"additional","affiliation":[{"name":"Department of Gynecology and Obstetrics University of Health Sciences, Istanbul Sariyer Hamidiye Etfal Health Practice and Research Center Istanbul  Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gokhan","family":"Bolluk","sequence":"additional","affiliation":[{"name":"Department of Gynecology and Obstetrics University of Health Sciences, Istanbul Basaksehir Cam and Sakura Health Practice and Research Center Istanbul  Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4133-2477","authenticated-orcid":false,"given":"Olgu","family":"Bafali","sequence":"additional","affiliation":[{"name":"Department of Gynecology and Obstetrics University of Health Sciences, Istanbul Sultangazi Haseki Health Practice and Research Center Istanbul  Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Osman","family":"Ince","sequence":"additional","affiliation":[{"name":"Department of Perinatology Akdeniz University Medicine Faculty Antalya  Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4727-0310","authenticated-orcid":false,"given":"Ali","family":"Gedikbasi","sequence":"additional","affiliation":[{"name":"Special Clinic Fulya Terrace Center Istanbul  Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2023,10,30]]},"reference":[{"key":"e_1_2_8_2_1","volume-title":"WHO recommendations on interventions to improve preterm birth outcomes","author":"World Health Organization Review Committee","year":"2015"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1097\/AOG.0b013e3182723b1b"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1097\/OGX.0b013e318270d5b2"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ogc.2015.01.003"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(12)60030-0"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2016.04.038"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/pd.2662"},{"key":"e_1_2_8_9_1","volume-title":"Preterm birth: causes, consequences, and prevention","author":"Institute of Medicine (US) Committee on Understanding Premature Birth and Assuring Healthy Outcomes","year":"2007"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1002\/ca.22183"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jbiomech.2015.02.065"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.7863\/jum.2002.21.3.227"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2016.03.033"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1080\/14767058.2017.1331427"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jogoh.2017.02.012"},{"key":"e_1_2_8_16_1","doi-asserted-by":"publisher","DOI":"10.1159\/000447588"},{"key":"e_1_2_8_17_1","doi-asserted-by":"publisher","DOI":"10.1055\/s-0037-1608877"},{"key":"e_1_2_8_18_1","doi-asserted-by":"publisher","DOI":"10.1055\/s-0037-1603653"},{"key":"e_1_2_8_19_1","unstructured":"Cervical assessment.The Fetal Medicine Foundation [Internet]. 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