| Prediction of preterm delivery in twins by cervical assessment at 23 weeks. | |
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MedLine Citation:
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PMID: 11244660 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To establish the relation between cervical length at 23 weeks of gestation in twin pregnancies and risk of spontaneous delivery before 33 weeks. METHODS: Cervical length was measured by transvaginal sonography at 23 (range 22-24) weeks of gestation in 464 twin pregnancies attending for routine antenatal care. In the patients who were managed expectantly the relation between cervical length and the rate of spontaneous delivery before 33 weeks was determined. RESULTS: The cervical length distribution was skewed to the left and the median value was 36 mm. The rate of spontaneous delivery before 33 weeks was inversely related to cervical length at 23 weeks. It increased gradually from about 2.5% at 60 mm, to 5% at 40 mm and 12% at 25 mm, and exponentially below this length to 17% at 20 mm and 80% at 8 mm. Cervical length of 20 mm or less is found in about 8% of the population and this group contained about 40% of women delivering spontaneously before 33 weeks. CONCLUSIONS: In twin pregnancies measurement of cervical length provides useful prediction of risk for spontaneous early preterm delivery. |
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Authors:
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C Skentou; A P Souka; M S To; A W Liao; K H Nicolaides |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology Volume: 17 ISSN: 0960-7692 ISO Abbreviation: Ultrasound Obstet Gynecol Publication Date: 2001 Jan |
Date Detail:
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Created Date: 2001-03-13 Completed Date: 2001-06-14 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9108340 Medline TA: Ultrasound Obstet Gynecol Country: England |
Other Details:
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Languages: eng Pagination: 7-10 Citation Subset: IM |
Affiliation:
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Harris Birthright Research Centre for Fetal Medicine, King's College Hospital Medical School, London, UK. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Cervix Uteri / ultrasonography* Female Gestational Age Humans Obstetric Labor, Premature / epidemiology, ultrasonography* Predictive Value of Tests Pregnancy Pregnancy Outcome / epidemiology Pregnancy, Multiple* Risk Assessment Sensitivity and Specificity Twins Ultrasonography, Prenatal* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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