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Preterm Labor Prediction by Cervical Contour in Ultrasound

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified August 2014 by Meir Medical Center.
Recruitment status was:  Recruiting
ClinicalTrials.gov Identifier:
First Posted: July 31, 2013
Last Update Posted: August 13, 2014
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Meir Medical Center

Cervical length is a already known predictor for preterm labor. In this study the investigators want to examining the hypothesis that cervical curvature is also a predictor for preterm labor and that moderate transducer pressure influence cervical length.

study population: 200 consecutive pregnant women between 14-34w, visiting in the ultrasound unit ether for routine screening or because of preterm labor.

During their examination cervical length and curvature measurements will be taken. Another measurement will be taken after applying moderate cervical pressure.

The investigators will compere cervical contour and pressure influence between groups and according to cervical length Demographic data will be taken at the time of recruitment and pregnancy outcome measures in a later telephone interview.

Preterm Labor

Study Type: Observational
Study Design: Observational Model: Case Control

Further study details as provided by Meir Medical Center:

Primary Outcome Measures:
  • cervical curvature [ Time Frame: 12 months ]

Estimated Enrollment: 200
Study Start Date: August 2013
Estimated Primary Completion Date: August 2014 (Final data collection date for primary outcome measure)
preterm labor
pregnant women with signs of preterm labor: uterine contractions or cervical shortening
pregnant women with no signs or symptoms of preterm labor


Information from the National Library of Medicine

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Ages Eligible for Study:   20 Years to 40 Years   (Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population
pregnant women 14-34w

Inclusion Criteria:

  • pregnancy

Exclusion Criteria:

  • cervical cerclage
  • pre term rupture on membrane in current pregnancy
  • unknown dating of pregnancy
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01912508

Contact: Efrat Hadi, Dr 09-7472871/2
Contact: Ronnie Teper, Professor 09-74728671/2

Meir hospital Recruiting
Kfar Saba, Israel
Sponsors and Collaborators
Meir Medical Center
  More Information

Responsible Party: Meir Medical Center
ClinicalTrials.gov Identifier: NCT01912508     History of Changes
Other Study ID Numbers: MMC-12-0152CTIL
First Submitted: July 29, 2013
First Posted: July 31, 2013
Last Update Posted: August 13, 2014
Last Verified: August 2014

Keywords provided by Meir Medical Center:
cervical length
cervical curvature

Additional relevant MeSH terms:
Premature Birth
Obstetric Labor, Premature
Obstetric Labor Complications
Pregnancy Complications