Mohamed Mahmoud Hussein <br/><br/>
Transvaginal utrasonographic assessment of lower uterine segment thickness and prediction of uterine rupture in cases of vaginal birth after caesarean delivery /  
 استخدام الموجات فوق الصوتية المهبلية فى تقييم سمك الجزء السفلى من الرحم بحدوث انفجار رحمى فى حالات الولادة المهبلية بعد قيصرية سابقة  
Mohamed Mahmoud Hussein ; Supervised Mohamed Ali Abdelkader , Abdallah Yehia Elkateb , Yahia Mohamed Elfaissal  
 - Cairo :   Mohamed Mahmoud Hussein ,   2015 
 - 84 P. :   charts , facsimiles ;   25cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Medicine - Department of Gynecology and Obstetrics  
<br/><br/> Objective:to assess the strength of the association between  transvaginal ultrasonographic measurement of the lower uterine segment  in women with prior one CS undergoing a trial of vaginal birth and  uterine scar defect at delivery and to ascertain the best cut-off value for  predicting uterine rupture . Results: Uterine dehiscence was found in 3 cases (5%).There were  no cases ofuterine rupture. The thicknessof lower uterine segment among  the gravidas with dehiscence was significantly less than those without  dehiscence. The cut-off value for the thickness of lower uterine segment  was 3.0 mm as calculated by the receiver operating characteristic curve  .The sensitivity was 89.5% , specificity 75.6% , positive predictive value  63% ,negative predictive value 90.3%.  
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<br/><br/><label>Subjects--Index Terms: </label>Lower uterine segment and VBAC Uterine dehiscence   Uterine rupture