When to measure caeserian scar in post lscs pregnancy?
Answers
Pregnant women with previous one cesarean section underwent transvaginal sonography between 24 and 28 weeks of gestation and then a repeat scan beyond 36 weeks of gestation to measure scar thickness. These scar thickness measurements were then correlated with the mode of delivery. The scar was measured at multiple sites (3–4) of the lower uterine segment and its thinnest portion was considered to be the scar.
Result
Scar thickness was thinner in those patients having cesarean delivery than those having vaginal delivery and this difference was statistically significant at both the gestational ages. Mean scar thickness at 24–28 weeks of gestation in patients who delivered vaginally is 4.8 ± 1.1 mm and in those who had repeat cesarean section is 4.4 ± 1.1 mm (p value = 0.043). Mean scar thickness beyond 36 weeks of gestation in patients who delivered vaginally is 3.3 ± 0.7 mm and in those who had repeat cesarean section is 2.9 ± 0.9 mm (p value = 0.003). The mean decrease in scar thickness was not significantly different between those who delivered vaginally (mean decrease = 1.73 ± 0.95 mm) and those who had a repeat cesarean (mean decrease = 1.91 ± 0.96 mm).