الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
The safety of vaginal birth after cesarean delivery VBAC) has been confirmed in various clinical trials (miller et aL,1994). However, the most dangerous complication of VBAC is uterine rupture with its risks of maternal and fetal morbidity and mortality (Cunningham et a!., 2001).Various imaging modalities have been used to determine the integrity of the scarred uterus including ultrasonographic evaluation (Asakura et aL, 2000, Sen et a!., 2004).
The aim of the present study was to evaluate the thickness of the lower uterine segment by transabdominal and transvaginal ultrasonography in patients with pervious cesarean section as an indicator for successful trial of VBAC This prospective study was carried out in the Department of Obstetrics and Gynecology, El-Menoufiya University Hospital, from November 2004 to April 2005. The study included 20 pregnant women from 36-38 weeks. The women were divided into two groups. Group I included 15 pregnant females with prior one lower segment transverse cesarean delivery. Group II included 5 pregnant females with prior two lower segment transverse cesarean sections. After detailed history taking and thorough general, abdominal and pelvic examinations, ultrasound measurement of the lower uterine segment thickness was performed with transabdominal and transvaginal probes.