Bishop Score vs. Cervical Length in Labor Induction

NCT ID: NCT07208552

Last Updated: 2025-10-06

Basic Information

• Recruitment Status: NOT_YET_RECRUITING
• Total Enrollment: 88 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2026-09-01
• Study Completion Date: 2027-11-30

Brief Summary

The study population consists of term primigravida women undergoing induction of labor at a tertiary care referral center in Assiut, Egypt.

Detailed Description

Participants include 88 primigravida women at ≥37 weeks of gestation, each with a singleton pregnancy in cephalic presentation. All participants present with medical or obstetric indications for induction of labor, such as post-dates, oligohydramnios, mild preeclampsia, or premature rupture of membranes. Exclusion criteria include prior uterine surgery, multiple pregnancies, malpresentation, placenta previa, vasa previa, non-reassuring fetal status at admission, or maternal infections such as active genital herpes and HIV. A carefully designed sample size calculation ensures adequate power, with a final cohort of 44 women per study arm.

Conditions

Bishop Score; Primigravida Women; Cervical Length

Study Design

• Observational Model Type: COHORT
• Study Time Perspective: PROSPECTIVE

Study Groups

Transvaginal Ultrasound Group (TVUS):

Participants undergo sonographic measurement of cervical length. A CL \<28 mm is considered favorable for successful induction. This method provides an objective and reproducible cervical assessment.

No interventions assigned to this group

Bishop Score Group (BS):

Participants undergo digital vaginal examination to assign Bishop Scores. A score ≥6 is considered favorable for induction. This is the traditional method of assessing cervical readiness.

No interventions assigned to this group

Eligibility Criteria

Inclusion Criteria

• Singleton pregnancy

Cephalic fetal presentation

Gestational age ≥37 weeks (confirmed by reliable dating)

Indication for induction of labor (postdate pregnancy, oligohydramnios, mild preeclampsia, premature rupture of membranes)

Exclusion Criteria

• Previous uterine surgery (e.g., cesarean section, myomectomy)

Multiple gestation

Malpresentation

Placenta previa or vasa previa

Non-reassuring fetal heart status at admission

Active genital herpes or HIV infection

• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Assiut University

OTHER

Sponsor Role: lead

Responsible Party

Hend ebaid mohammed kaoud

resident at the Obstetrics and Gynecology department

Responsibility Role: PRINCIPAL_INVESTIGATOR

Other Identifiers

Bishop Score vs. Cervical

Identifier Type: -

Identifier Source: org_study_id