The study for accuracy of ultrasonographic diagnosis of placenta previa during second trimester.
Not Applicable
- Conditions
- Placenta previa
- Registration Number
- JPRN-UMIN000010527
- Lead Sponsor
- Showa University School of Medicine, Department of Obstetrics and Gynecology
- Brief Summary
Results: We screened 9,341 patients, and 53 (0.6%) met the inclusion criteria. Nineteen cases with an open isthmus and 34 with a closed isthmus were followed. The accuracy for diagnosing placenta previa or a low-lying placenta at term was 94.7% in the open isthmus group and 26.5% in the closed isthmus group (p < 0.001). Elective or emergency Cesarean section was required in 100% of cases in the open isthmus group and 20.6% in the closed isthmus group (p < 0.001).
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Complete: follow-up complete
- Sex
- Female
- Target Recruitment
- 100
Inclusion Criteria
Not provided
Exclusion Criteria
(1)Multiple pregnancies. (2)Cases received uterine cervical circlage operation in the current pregnancy period. (3)Cases whose uterus has congenital anomaly or myoma in the uterine cervix or isthmus.
Study & Design
- Study Type
- Observational
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Diagnostic accuracy for placenta previa.
- Secondary Outcome Measures
Name Time Method