Placental Location in Women Experienced Cesarean Section using Ultrasonography: A Case-Control Study on Sudanese Women

Abstract

The objective of this study was to assess the placental location in women with a previous cesarean section (CS) using ultrasonography and the impact of cesarean section (CS) on placenta location. Methods and Results: This case-control study included 205 pregnant women with normal singleton pregnancies (83 women with previous CS [case group] and 122 without previous CS [control group]). The study was conducted at three general hospitals in Khartoum State from August to November 2019. The women were investigated using a Mindary ultrasound machine DP_2200 equipped with 3.5MHz transducers. The anterior placenta location was more prevalent than others: 43.3% and 45.9% for cases and control, respectively. The incidence of placenta previa (PP) and the low-lying placenta (LLP) was 1.2% and 3.6%, respectively, in the case group, and 0.0 and 0.8%, respectively, in the control group. Women with a previous CS were at high risk of the LLP and PP (OR=6.12). Conclusion: Our study concluded that the most common sites of the placenta in women with a previous CS were anterior and posterior locations. The study also concluded that women with a previous history of CS are at high risk for LLP and PP.