Is transvaginal ultrasonography at mid-trimester useful for predicting early spontaneous preterm birth?
نویسندگان
چکیده
Numerous reports have examined the relationship between sonographically determined cervical length and spontaneous preterm birth. Moreover, large screening studies have consistently demonstrated that the shorter the cervical length, the higher the rate of spontaneous preterm delivery. However, the sensitivity and positive predictive value of the cervical length for detecting preterm birth were low. Subsequently, we developed a new sonographic parameter termed "cervical gland area (CGA)". The purpose of this study was to determine whether sonographic cervical findings (shortened cervical length or absence of CGA) at 16 - 19 weeks' gestation could predict spontaneous preterm birth. The absence of CGA as compared to the shortened cervical length showed a higher sensitivity (75.0% vs. 50.0%) and a significantly elevated positive predictive value (54.5% vs. 8.3%) for preterm birth before 32 weeks' gestation. It was concluded that the absence of CGA was a novel and useful sonographic parameter for predicting early spontaneous preterm birth.
منابع مشابه
Transvaginal sonographic measurement of cervical length and the risk of spontaneous preterm birth
Transvaginal sonographic measurement of cervical length, at 20 weeks of gestation, is very useful to predict spontaneous preterm birth. A large number of studies have been performed in the attempt to detect the spontaneous preterm birth on the basis of biological, biochemical and ultrasound parameters. Transvaginal Sonography is a good tool to evaluate the cervix. This study aims to evaluate th...
متن کاملTransvaginal sonographic measurement of cervical length to predict preterm birth in asymptomatic women at increased risk: a systematic review.
OBJECTIVES To estimate the ability of cervical length measured by transvaginal ultrasonography in asymptomatic high-risk women to predict spontaneous preterm birth. METHODS MEDLINE, PubMed, EMBASE and the Cochrane Library were searched for articles published in any language between January 1980 and July 2006, using the keywords 'transvaginal ultrasonography' or ('cervix' and ('ultrasound' or ...
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OBJECTIVE To examine the natural history of cervical length shortening in women who had experienced at least one prior spontaneous preterm birth at between 17+0 and 33+6 weeks' gestation. METHODS This was an analysis of prerandomization data from the multicenter Vaginal Ultrasound Cerclage Trial. Serial cervical length was measured by transvaginal sonography in 1014 high-risk women at 16+0 to...
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OBJECTIVE To compare pregnancy outcome after elective vs. ultrasound-indicated cervical cerclage in women at high risk of spontaneous mid-trimester loss or early preterm birth. METHODS This was a retrospective study comparing two management strategies in women with singleton pregnancies who had at least one previous spontaneous delivery at 16-33 weeks of gestation. One group was managed by th...
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Background Preeclampsia is a specific pregnancy syndrome. Early diagnosis and proper administration of preeclampsia can lead to improved maternal and neonatal outcome. We aimed to investigate the uterine artery Doppler ultrasound in predicting the preeclampsia in women with a high-risk pregnancy. Materials and Methods This analytic study was conducted on 160 primigravida women with gestational...
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ورودعنوان ژورنال:
- Journal of Nippon Medical School = Nippon Ika Daigaku zasshi
دوره 70 2 شماره
صفحات -
تاریخ انتشار 2003