Bishop Score vs. Cervical Length in Labor Induction

Assiut University

Status: Begins enrollment in 6 months

Conditions: Primigravida Women; Bishop Score; Cervical Length

Study type: Observational

Funder types: Other

Identifiers

NCT07208552

Bishop Score vs. Cervical

Details and patient eligibility

About

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

Full 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.

Enrollment: 88 estimated patients

Sex: All

Volunteers: Accepts Healthy Volunteers

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

Trial design

88 participants in 2 patient groups

Transvaginal Ultrasound Group (TVUS):

Description:

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.

Bishop Score Group (BS):

Description:

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.