Uterocervical Angle Versus Cervical Length as a Predictor of Labor Induction in Term Singleton Pregnancy

Etlik Zubeyde Hanım Women's Health Care, Training and Research Hospital

Status: Completed

Conditions: Labor (Obstetrics)--Complications

Treatments: Procedure: Uterocervical angle

Study type: Observational

Funder types: Other

Identifiers

NCT06558500

2022/113

Details and patient eligibility

About

Induction of labor is frequently performed in all obstetric clinics. Failed IOL has been defined in many different ways.Bishop scoring, which is a traditional and subjective method, is more frequently evaluated with cervical length, which has taken its place in preterm labor, and various ultrasonographic evaluations such as Uterocervical angle (UCA), Posterior cervical angle (PCA), cervical elastography, transvulvar ultrasonography, which have recently increased in popularity, have gained importance and led us to evaluate these parameters in our clinic. The relationship between the angles between the uterus and cervix and labor has been known for some time.

Full description

Induction of labor is frequently performed in all obstetric clinics for various indications, with a worldwide spectrum ranging from 1.4 to 35%. Failed IOL has been defined in many different ways. It has been defined as a dilatation of less than 4 cm despite administration of oxytocin for 12 hours±3 hours (target 200-225 MVU or 3 contractions/10 min), induction of labor with oxytocin for at least 12-18 hours (after rupture of membranes) and a latent phase lasting 24 hours or longer, primarily considering fetal and maternal well-being. In some sources, it is defined as failure to achieve regular (e.g. every 3 minutes) uterine contractions and cervical changes with artificial rupture of membranes after at least 6-8 hours of oxytocin maintenance dose. For this reason, various subjective & ultrasonographic parameters used to predict induction success are of great importance for the evaluation of the cervix. Bishop scoring, which is a traditional and subjective method, is more frequently evaluated with cervical length, which has taken its place in preterm labor, and various ultrasonographic evaluations such as Uterocervical angle (UCA), Posterior cervical angle (PCA), cervical elastography, transvulvar ultrasonography, which have recently increased in popularity, have gained importance and led us to evaluate these parameters in our clinic.

The relationship between the angles between the uterus and cervix and labor has been known for some time.

Enrollment: 140 patients

Sex: Female

Ages: 18 to 40 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

37 weeks and older Nulliparity Live, singular Verteks presentation Cervical opening<3 cm Bishop score<7 Patients not in active action

Exclusion criteria

• Presence of contraindications to vaginal delivery (pls previa, detached pls...)
• History of previous uterine surgery
• Multiple pregnancies
• Non-vertex presentation
• Uncontrolled HT Uncontrolled DM
• Fetal distress
• Macrosomic fetus Patients in active labor

Trial design

140 participants in 2 patient groups

group 1

Description:

delivered vaginally with successful induction of labor

Treatment:

Procedure: Uterocervical angle

group 2

Description:

failed induction and delivered with C/S

Treatment:

Procedure: Uterocervical angle