Abstract: Introduction: The increased number of caesarean births is causing a great deal of professional and public worry. Using transvaginal and abdominal ultrasonography, estimate the critical thickness over which a safe vaginal birth is foreseeable in women who have previously had caesarean delivery.
Method: 50 pregnant women who had previously had a caesarean section served as the case group in a case-control research, whereas 50 pregnant women who had never undergone a caesarean section served as the control group. The gestational age was between 38 and 40 weeks. The thickness of the LUS was measured using TA and TV ultrasonography in both groups; in the study group, a thickness of >2 mm was regarded as good healing and a thickness of 2 mm as poor healing; the mode of delivery for women was either trial VBAC (unless an obstetrical indication for CS existed) or ERCS. There was a correlation between U/S measures and every intraoperative LUS manifestation and delivery result.
Result: The total VBAC success rate was 52%, the incidence of dehiscence was 4%, and there was no uterine rupture. The overall VBAC success rate was 84%. Between TA and TV ultrasonography, there was a 95% correlation. The ROC curve's crucial cut off value for safe LUS thickness was 2.5mm.
Conclusion: In women who have had a prior caesarean section, sonography enables a reliable measurement of the LUS thickness, making it theoretically possible to utilise it to foretell the risk of uterine rupture during a trial vaginal delivery.
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