Caesarean Section Scar and Placental Location at the First Trimester of Pregnancy-A Prospective Longitudinal Study

被引:0
作者
Savukyne, Egle [1 ]
Kliucinskas, Mindaugas [1 ]
Malakauskiene, Laura [1 ]
Berskiene, Kristina [2 ]
机构
[1] Lithuanian Univ Hlth Sci, Med Acad, Dept Obstet & Gynaecol, LT-44307 Kaunas, Lithuania
[2] Lithuanian Univ Hlth Sci, Dept Sports Med, Tilzes St 18, LT-47181 Kaunas, Lithuania
来源
MEDICINA-LITHUANIA | 2024年 / 60卷 / 05期
关键词
caesarean section; placental location; ultrasonography; first trimester; scar niche; IMPLANTATION; MIGRATION; SITE;
D O I
10.3390/medicina60050719
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Background and Objectives: This study aims to report the location of the placenta in the first trimester of pregnancy in groups of women according to the number of previous caesarean deliveries and the visibility of the caesarean scar niche. Materials and Methods: The prospective observational research included adult women aged 18 to 41 years during pregnancy after one or more previous caesarean sections (CSs). Transvaginal (TVS) and transabdominal sonography (TAS) was used to examine the uterine scar and placental location during 11-14 weeks. The CS scar niche ("defect") was bordered in the sagittal plane as a notch at the previous CS scar's site with a depth of 2.0 mm or more. A comparative analysis of the placental location (high or low and anterior or posterior) was performed between groups of women according to the CS number and the CS scar niche. Results: A total of 122 participants were enrolled during the first-trimester screening. The CS scar defect ("niche") was visible in 40.2% of cases. In cases after one previous CS, the placenta was low in the uterine cavity (anterior or posterior) at 77.4%, and after two or more CSs, it was at 67.9%. Comparing the two groups according to the CS scar niche, the placenta was low in 75.5% of cases in the participant group with a CS scar niche and in 75% of cases without a CS scar niche (p = 0.949). Conclusions: The number of previous caesarean deliveries has no effect on the incidence rate of low-lying placentas in the first trimester. Moreover, the presence of the CS scar niche is not associated with anterior low-lying placentas.
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页数:8
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