Diagnosing early scar pregnancy in the lower uterine segment after cesarean section by intracavitary ultrasound  

作　　者：Xiao-Ling Cheng Xiao-Yan Cao Xiao-Qian Wang Heng-Li Lin Jin-Chuan Fang Lin Wang 

机构地区：[1]Department of Ultrasonography,Women and Children Health Institute Futian Shenzhen,Shenzhen 518026,Guangdong Province,China

出　　处：《World Journal of Clinical Cases》2022年第2期547-553,共7页世界临床病例杂志

摘　　要：BACKGROUND Early scar pregnancy(CSP)in the lower uterine segment after cesarean section is a type of ectopic pregnancy that can cause major complications if left untreated.Transabdominal ultrasound is a common procedure but is influenced by external factors.Thus,intracavitary ultrasound may have better diagnostic efficiency for CSP.AIM To assess the value of intracavitary ultrasound for diagnosing CSP in the lower uterine segment after cesarean section.METHODS Patients diagnosed with CSP in our hospital from October 2019 to April 2021 were recruited.Transabdominal and intracavitary ultrasound examinations were performed to compare the diagnostic differences for CSP and its types.RESULTS Sixty-three patients were diagnosed during the study period.The diagnostic accuracy for CSP was higher in intracavitary ultrasound(96.83%)than in transabdominal ultrasound(84.13%)(P<0.05).The missed diagnosis and misdiagnosis rates did not differ among the ultrasound types(intra:0.00%and 3.17%;trans:4.76%and 11.11%,respectively;P>0.05).For the diagnostic rates for the CSP types,the rates for gestational sac(100.00%vs 90.48%),heterogeneous mass(93.75%vs 75.00%),and part of the uterine cavity(80.00%vs 60.00%)were higher in intracavitary ultrasound than in transabdominal ultrasound,but the difference was not statistically significant(P>0.05).For gestational sac CSP patients,intracavitary ultrasound showed that the gestational sac was located in the lower uterine segment scar with abundant peripheral blood flow;the distance between the gestational sac and the serosal layer was 2.42±0.50 cm.Intracavitary ultrasound for heterogeneous mass CSP patients indicated that the mass mainly occurred in the lower anterior uterine wall,protruding into the bladder,and was surrounded by abundant internal and peripheral blood flow;the distance between the mass and serosal layer was 1.79±0.30 cm.For CSP type partly located in the uterine cavity,the gestational sac was partly located in the lower uterine cavity and partly in the scar with abundant in

关 键 词：ULTRASONOGRAPHY Cesarean section UTERUS PREGNANCY Cesarean section REPEAT ULTRASONOGRAPHY DOPPLER 

分 类 号：R714.22[医药卫生—妇产科学]