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Comparison Between Ultrasonographic Cervical Length and Bishop Score in Preinduction Cervical Assessment

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT01317706
First Posted: March 17, 2011
Last Update Posted: March 17, 2011
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:
Seoul National University Hospital
  Purpose
To compare the ultrasonographic cervical length with the Bishop score in determining the administration of prostaglandin for preinduction cervical ripening in nulliparas at term.

Condition Intervention
Failed Induction of Labor Other: Assessment of cervical status

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Care Provider)
Primary Purpose: Diagnostic

Further study details as provided by Seoul National University Hospital:

Primary Outcome Measures:
  • Successful labor induction [ Time Frame: Eleven hours of initiating oxytocin on the fist day of induction ]
    Induction success was defined as an ability to achieve the active phase of labor corresponding to a cervical dilatation of ≥ 4 cm within 11 hours of initiating oxytocin (i.e., within 22 hours of the administration of a dinoprostone vaginal insert) on the first day of induction.


Secondary Outcome Measures:
  • the need for oxytocin induction [ Time Frame: After removing prostaglandin, the following day when an intravenous oxytocin infusion was started ]
    1. the interval from start of oxytocin to the active phase of labor
    2. the interval from start of oxytocin to delivery
    3. vaginal delivery within 24 hours of starting induction
    4. the incidence of cesarean delivery
Enrollment: 154
Study Start Date: November 2008
Study Completion Date: August 2010
Primary Completion Date: August 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Bishop score Other: Assessment of cervical status
Assessment of cervical status based on Bishop score versus sonographically measured cervical length
Active Comparator: transvaginal ultrasound Other: Assessment of cervical status
Assessment of cervical status based on Bishop score versus sonographically measured cervical length

  Eligibility

Information from the National Library of Medicine

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Ages Eligible for Study:   Child, Adult, Senior
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • nulliparous patients
  • singleton pregnancy
  • live fetus with vertex presentation
  • intact amniotic membranes
  • > 37 weeks gestation
  • absence of labor
  • no previous uterine surgical procedures

Exclusion Criteria:

  • major congenital anomaly
  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): NCT01317706


Locations
Korea, Republic of
Department of Obstetrics and Gynecology Seoul National University Bundang Hospital
Seongnam-si, Gyeonggi-do, Korea, Republic of, 463-707
Sponsors and Collaborators
Seoul National University Hospital
Investigators
Principal Investigator: Kyo Hoon Park, MD, PhD Seoul National University Bundang Hospital
  More Information

Responsible Party: Seoul National University Bundang Hospital, Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital
ClinicalTrials.gov Identifier: NCT01317706     History of Changes
Other Study ID Numbers: BS_CL_01
First Submitted: March 16, 2011
First Posted: March 17, 2011
Last Update Posted: March 17, 2011
Last Verified: March 2011

Keywords provided by Seoul National University Hospital:
Bishop score, Cervical length, Cervical ripening, Labor induction


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