Delivery of pregnant women with threatened preterm labour and cervical length > 3 centimeters

Delivery of pregnant women with threatened preterm labour and cervical length > 3 centimeters : A prospective cohort study

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

TCTR

Registry ID

TCTR20180709002

Enrollment

250

Registered

2018-07-09

Start date

2018-08-01

Completion date

Unknown

Last updated

2026-08-03

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

Conditions

preterm delivery threatened preterm labour cervical length 3 cm or greater bed rest

Interventions

Pregnant women with threatened preterm labour (regular uterine contraction every 4 times in 20 minutes or 8 times in 1 hour with cervical length 3 cm or greater and cervical opening < 2 cm) are recru

< 37 weeks. The patients will take only bed rest and be measured the cervical length every 4 hours for 24 hours&#44

then every 6 hours for 24 hours and the last measurement in the next 24 hours. If there was no change of cervical length&#44

the pregnant patient will be discharged. In contrary&#44

if there is any cervical progression&#44

the stand treatment accirdng to the guideline will be intervened.

Prevention

threatened preterm labour&#44

cervical length 3 cm or greater with cervical opening < 2 cm and bed rest

Eligibility

Sex/Gender

Female

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Pregnant women with threatened preterm labour (regular uterine contraction every 4 times in 20 minutes or 8 times in 1 hour with cervical length 3 cm or greater and cervical opening < 2 cm) 2. Gestational age about 20- < 37 weeks. 3. No history of premature rupture of membranes. 4. Pregnant women who signs in consent form.

Exclusion criteria

Exclusion criteria: 1. Pregnant women who need prompt intervention of caring of preterm labour. 2. Pregnant women < 18 years. 3. Pregnant women with abnormal bleeding per vagina. 4. Pregnant women who previously received tocolytic drugs. 5. Pregnant women with abruptio placentae. 6. Pregnant women with cervical cerclage. 7. Pregnant women with trauma, UTI, multifetal pregnancy. 8. Pregnant women with previous history of preterm delivery.

Design outcomes

Primary

Measure	Time frame
preterm delivery within 20 weeks after intervention gestational age of delivery	—

Secondary

Measure	Time frame
duration after bed rest to delivery within 20 weeks after intervention duration from admission to delivery	—

Countries

Thailand

Contacts

Public ContactSaifon Chawanpaiboon

Siriraj Hospital

saifon.cha@mahidol.ac.th0894436106

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026