Failed Induction of Labor
Conditions
Keywords
Bishop score, Cervical length, Cervical ripening, Labor induction
Brief summary
To compare the ultrasonographic cervical length with the Bishop score in determining the administration of prostaglandin for preinduction cervical ripening in nulliparas at term.
Interventions
Assessment of cervical status based on Bishop score versus sonographically measured cervical length
Sponsors
Seoul National University Hospital
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
DOUBLE (Subject, Caregiver)
Eligibility
Sex/Gender
FEMALE
Healthy volunteers
No
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Successful labor induction | 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
| Measure | Time frame | Description |
|---|---|---|
| the need for oxytocin induction | 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 |
Countries
South Korea
Outcome results
None listed