Transvaginal Ultrasonographic Assessment of Lower Uterine Segment Thickness and Prediction of Uterine Rupture In Cases of Vaginal Birth After Caesarean Delivery

Background: The rise in elective CSs, which make about one-third of all is primarily to blame for the Cesarean birth rate. Objective: To assess strength association between transvaginal ultrasonographic measurement lower uterine segment women with prior one CS undergoing a trial vaginal and scar defect at delivery. Patients Methods: A retrospective observational study was conducted Al Ahrar Zagazig Teaching Hospital during period from June 2018 through 2020. thickness measured ultrasonography 60 gravid as (36 week – 40 week) previous VBAC, evaluated Results: Uterine dehiscence found 4 cases (6.7%). There were no rupture. significant correlation grade sonographic LUS using trans-vaginal ultrasound (p value= 0.001).The third trimester (36-40 had relation mode 2.4 mm considered critical cutoff value above safe delivery can be achieved. This derived ROC curve sensitivity, specificity, PPV, NPV 75.0%, 85.7%, 27.3%, 98.0%, respectively. Conclusion: Measurement by TVS seems good screening test its obviously high sensitivity negative predictive value.