The study for accuracy of ultrasonographic diagnosis of placenta previa during second trimester.

The study for accuracy of ultrasonographic diagnosis of placenta previa during second trimester. - The study for accuracy of ultrasonographic diagnosis of placenta previa during second trimester.

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000010527

Enrollment

100

Registered

2013-04-17

Start date

2013-01-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Placenta previa

Interventions

None listed

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: (1) Pregnant women who visit to hospital between 20+0 and 24+6 weeks' gestation. (2) Cases whose placenta is visualized via transvaginal ultrasonography on the uterine cervical os. (3) Written informed consent form after giving detail information can be obtained. (In case patient is under 20 years old, this form must be also obtained from person in parent authority.)

Exclusion criteria

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.

Design outcomes

Primary

Measure	Time frame
Diagnostic accuracy for placenta previa.	—

Countries

Japan

Contacts

Public ContactJunichi Hasegawa

Showa University School of Medicine Department of Obstetrics and Gynecology

hasejun@oak.dti.ne.jp03-3781-8551

Outcome results