{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,14]],"date-time":"2026-07-14T05:07:38Z","timestamp":1784005658450,"version":"3.55.0"},"reference-count":28,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2011,6,14]],"date-time":"2011-06-14T00:00:00Z","timestamp":1308009600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Ultrasound in Obstet &amp; Gyne"],"published-print":{"date-parts":[[2011,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>To determine if asymptomatic women at high risk of preterm delivery who had a short cervical length in their previous pregnancy and delivered at term are at increased risk of having a short cervical length in their next pregnancy, and whether they are at increased risk of preterm birth.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>This retrospective cohort study included high\u2010risk (those with a history of spontaneous preterm birth, uterine anomaly or excisional treatment for cervical dysplasia) asymptomatic women who were pregnant with a singleton gestation delivering between April 2003 and March 2010, who had had a previous pregnancy and who had transvaginal ultrasonographic cervical length measurement performed at 16\u201330 weeks' gestation in both pregnancies. Comparison was among women who had a short cervical length (&lt; 3.0 cm) in their previous pregnancy but delivered at term in that pregnancy (Short Term Group), women with a history of a normal cervical length (\u2265 3.0 cm) in their previous pregnancy delivering at term (Long Term Group), and women who had a short cervical length (&lt; 3.0 cm) in their previous pregnancy delivering preterm (Short Preterm Group). Primary outcomes were spontaneous preterm birth at &lt; 37 weeks' gestation and cervical length. Secondary outcomes were spontaneous preterm birth at &lt; 35 weeks and &lt; 32 weeks, low birth weight, maternal outcomes and neonatal morbidity.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A total of 62 women were included. Women in the Short Term Group were more likely to have a short cervical length in their next pregnancy compared with those in the Long Term Group (10\/23 (43.5%) vs. 4\/26 (15.4%), respectively) but not as likely as women in the Short Preterm Group (9\/13 (69.2%); <jats:italic>P<\/jats:italic> = 0.003). Women in the Short Term Group were not at an increased risk of spontaneous preterm birth at &lt; 37 weeks in the next pregnancy compared with women in the Long Term Group (2\/23 (8.7%) vs. 2\/26 (7.7%), respectively), but women in the Short Preterm Group were at an increased risk (6\/13 (46.2%); <jats:italic>P<\/jats:italic> &lt; 0.0001). Compared with women in the Short Term and Long Term groups, women in the Short Preterm Group were also at an increased risk of threatened preterm labor (6\/23 (26.1%) and 4\/26 (15.4%) vs. 9\/13 (69.2%), respectively; <jats:italic>P<\/jats:italic> = 0.002) and of receiving corticosteroids for fetal lung maturation (6\/23 (26.1%) and 4\/26 (15.4%) vs. 11\/13 (84.6%), respectively; <jats:italic>P<\/jats:italic> &lt; 0.0001).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Although high\u2010risk asymptomatic women with a short cervical length in their previous pregnancy who delivered at term are at increased risk of having a short cervix in their next pregnancy, they are not at increased risk of preterm birth. Copyright \u00a9 2011 ISUOG. Published by John Wiley &amp; Sons, Ltd.<\/jats:p><\/jats:sec>","DOI":"10.1002\/uog.9004","type":"journal-article","created":{"date-parts":[[2011,3,21]],"date-time":"2011-03-21T10:05:43Z","timestamp":1300701943000},"page":"38-43","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Transvaginal ultrasonographic measurement of cervical length in asymptomatic high\u2010risk women with a short cervical length in the previous pregnancy"],"prefix":"10.1002","volume":"38","author":[{"given":"J. M. G.","family":"Crane","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D.","family":"Hutchens","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2011,6,14]]},"reference":[{"key":"e_1_2_5_2_2","unstructured":"Committtee on the impact of pregnancy weight on maternal and child health. 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