Obstetrics and Gynecology
Khadije Rezaie keikhaie; Leili Rezaie Kahkha; Zahra Shahraki; Sairo Esbati; Mahdi Afshari; Atefeh Kamali; Mahboobeh Shirazi; Maryam Moshfeghi
Volume 6, Issue 4 , August 2021, , Pages 181-187
Abstract
Background & Objective: Spontaneous preterm birth (SPB) occurs in about 10 to 12 percentage of pregnancies and causes many complications and mortality during pregnancy periods (1). The aim of this study was to determine the evaluation of uterocervical angle compared to cervical length as a sonographic ...
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Background & Objective: Spontaneous preterm birth (SPB) occurs in about 10 to 12 percentage of pregnancies and causes many complications and mortality during pregnancy periods (1). The aim of this study was to determine the evaluation of uterocervical angle compared to cervical length as a sonographic method in predicting preterm delivery for patients who were undergoing the transvaginal cerclage.Materials & Methods: The present study was performed on 91 pregnant women who were candidates for cerclage in 2019-2020. In this study, about 16.48 percentage of births were preterm and 27.47 percentage were post-term. During the study, routine cervical evaluation was performed by post-cerclage ultrasound and transvaginal ultrasound was performed in all patients one week after cerclage. Additional evaluation with transvaginal ultrasound was performed at intervals determined by the treating physicians with final ultrasound evaluation of the cervix up to 28 weeks of gestation. Finally, the obtained data were entered into SPSS 22 and statistically analyzed using t-test, Chi-square and Fisher's exact test.Results: The results of the present study showed that considering the existing thresholds (95 and 105) for the anterior uterosacral angle and the threshold 25 for the cervical length index, all these indices were included 100% sensitive.Conclusion: This sensitivity in the case of UCA higher than 95°C was about 80%, but the disadvantage of these indicators was their low specificity, so that these indicators were different ranging from 30% in the case of (UCA 105) to 7.15% in the case of (UCA 95).
Soghra Khazardoost; Fahimeh Ghotbizadeh; Sahar Latifi; Maryam Tahani; Mohammad Ali Ali Rezaei; Masoomeh Shafaat
Volume 1, Issue 2 , September and October 2016
Abstract
Objectives: Determining the necessity of cesarean section (C/S) due to failure of induction of labor (IOL) is essential to avoid fetus distress. In this study, the performance of the Bishop score and trans-vaginal ultrasound measurements were compared to predict successful IOL, and the most useful cut-off ...
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Objectives: Determining the necessity of cesarean section (C/S) due to failure of induction of labor (IOL) is essential to avoid fetus distress. In this study, the performance of the Bishop score and trans-vaginal ultrasound measurements were compared to predict successful IOL, and the most useful cut-off points were estimated.
Methods: Nulliparous women with gestation age of > 37 weeks with a live fetus in cephalic presentation were invited to participate in this study. Bishop score was assessed by digital examination, and trans-vaginal ultrasound was used to measure cervical length. Trans-abdominal ultrasound was utilized to determine the fetal head position.
Results: One hundred women entered the study. Multiple regression analysis revealed that the Bishop score and cervical length had a reliable predictive value in determining successful IOL. The cut-off points for predicting successful induction were 16 mm for cervical length and 5 for the Bishop score, using receiver operating characteristic curves (ROC). Both cervical length and Bishop score were good predictors for vaginal delivery (sensitivity and specificity of 85% and 67%, respectively for cervical length; and 84% and 70%, respectively for Bishop score).
Conclusions: Cervical length is a good predictor of successful IOL. Considering the painful process of digital exam, implementing trans-vaginal ultrasound is preferred.
