| Ultrasound assessment of cervical length in pregnancy. | |
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MedLine Citation:
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PMID: 18935991 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Cervical length in high-risk women for preterm birth has to be identified before early second trimester. Sequential evaluations lead to high predictive significance. The mean cervical length at 24 weeks is about 35 mm when measured by transvaginal ultrasound. A short cervix is defined as a cervix that is less than 25 mm and funneling, i.e. ballooning of the membranes into a dilated internal os, but with a closed external os. Factors such as short cervical length, uterine anomaly, previous cervical surgery, multiple gestation and positive fetal fibronectin results are associated with preterm delivery. Serial transvaginal ultrasound examinations during the early second trimester would provide longitudinal changes in the cervical length. The use of 17alpha-hydroxyprogesterone caproate and cerclage has shown to be beneficial in preventing preterm delivery. When combined with other predictors such as occiput position, parity, maternal age and body mass index, cervical length is a useful parameter for predicting the feasibility of labor induction and successful delivery. |
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Authors:
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An-Shine Chao; Angel Chao; Peter Ching-Chang Hsieh |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Review |
Journal Detail:
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Title: Taiwanese journal of obstetrics & gynecology Volume: 47 ISSN: 1875-6263 ISO Abbreviation: - Publication Date: 2008 Sep |
Date Detail:
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Created Date: 2008-10-21 Completed Date: 2009-01-07 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101213819 Medline TA: Taiwan J Obstet Gynecol Country: China |
Other Details:
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Languages: eng Pagination: 291-5 Citation Subset: IM |
Affiliation:
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Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital, Chang Gung University, Tao-Yuan, Taiwan. aschao1295@cgmh.org.tw |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Cerclage, Cervical / methods Cervical Ripening / physiology Cervix Uteri / physiopathology*, surgery, ultrasonography* Female Humans Predictive Value of Tests Pregnancy Pregnancy Outcome Pregnancy Trimester, Second Pregnancy, High-Risk* Premature Birth / prevention & control Risk Factors Sensitivity and Specificity Ultrasonography, Doppler Ultrasonography, Prenatal* Young Adult |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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