Study of the value of combination between bishop score and cervical length measured by untrasound in predicting preterm labor at the National Hospital of Obstetrics and Gynecology from 01/03/2013 to 01/09/2013

Abstract

Prospective study of 167 cases of threatened preterm labor were treated in pathological obstetric department of the national hospital of obtestrics and gynocology from 01/03/2013 to 01/09/2013 . Object: assess the value of combination between Bishop score and cervical length measured by ultrasound in predicting preterm labour. Subjects and Methods: the patients were diagnosed and treated of threatened preterm birth in pathological obstetric department, are full of essential information. The prospective study and data analysis by SPSS 16.0 program. Calculate the average value, the percentage, comparing the two average values, sensitivity, specificity and ROC construction. Results and discussion: Premature predictive value when combined Bishop score ≥ 6 points and cervical length measured by untrasound ≤ 26 mm with a sensitivity of 63,8%, a specificity of 100%. The value of combination between Bishop score and cervical length measured by ultrasonography to predict preterm birth is higher than when using either method alone. Full-term birth predictive value when combined both Bishop score <6 points and cervical length > 26 mm with a sensitivity of 88,0% and a specificity of 95,5%. Conclusion: The value of combination between Bishop score and cervical length measured by ultrasonography to predict preterm birth is higher than when using either method alone. Bishop score < 6 combined with cervical length> 26 mm can predict full-term birth.