Non-invasive ultrasound based method to determine normal curves of labor progression

Determination of labor progression patterns using non-invasive, ultrasound based, multiple parameters in low risk Chinese population

Status

Active, not recruiting

Phases

Phase 4

Study type

Observational

Source

ChiCTR

Registry ID

ChiCTR-DDT-13004031

Enrollment

Unknown

Registered

2013-12-24

Start date

2014-01-01

Completion date

Unknown

Last updated

2017-04-18

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

Conditions

Labor Progress

Interventions

Gold Standard:

Index test:

Eligibility

Sex/Gender

Male

Age

18 Years to 50 Years

Inclusion criteria

Inclusion criteria: 1. Nulliparous women; 2. At Least 37+0 weeks; 3. Spontaneous onset of labour; 4. Patient with regular uterine contraction >= 2 in 10 minutes; 5. Cervix >=3cm dilated.

Exclusion criteria

Exclusion criteria: 1. Risk factors of cephalopelvic disproportion i. Gestation at 41 weeks or beyond OR ii. Cervix dilating =4.0kg OR AC >=+2SD OR BPD >+2SD OR HC >+2SD). OR v. Maternal short stature (Maternal height<150cm) OR 2. Fetal Malformation; 3. Fetal Growth Restriction i. Any USG evidence of small for gestation fetus in recent 2 weeks; 4. Pelvic Surgery; 5. Still Birth.

Design outcomes

Primary

Measure	Time frame
Station, Position;	—

Secondary

Measure	Time frame
Birth Weight, Mode of Delivery, Cervical dilatation;	—

Countries

China

Contacts

Public ContactChor Chung Ming

cmchor@cuhk.edu.hk+852 2632 3190

Outcome results

None listed

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