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A prospective cohort study of the predictive efficacy of preterm birth by transvaginal cervical ultrasound measurements in pregnant woman in the first- and second trimester

A prospective cohort study of the predictive efficacy of preterm birth by transvaginal cervical ultrasound measurements in pregnant woman in the first- and second trimester

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2200066027
Enrollment
Unknown
Registered
2022-11-22
Start date
2022-11-22
Completion date
Unknown
Last updated
2023-05-15

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

Conditions

Preterm birth

Interventions

Observation group:N/A

Sponsors

Nanjing Drum Tower Hospital
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
18 Years to 50 Years

Inclusion criteria

Inclusion criteria: (1) Age 18-45 years old (2) Singleton pregnancy (3) tend to undergo obstetric examinations in Nnajing Drum Tower hosiptal (4) Be able to Understand and sign the informed consent form;

Exclusion criteria

Exclusion criteria: (1) Multiple pregnancies; (2) No fetal heartbeat at 11-13 weeks of pregnancy (miscarriage) (3) Inable to sign consent form.

Design outcomes

Primary

MeasureTime frame
rate of preterm birth;—

Secondary

MeasureTime frame
rate of spontaneous abortion;—

Countries

China

Contacts

Public ContactZheng Mingming

Nanjing Drum Tower Hospital

drmingmingzheng@163.com13813849845

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026