Abnormal labor, also known as dystocia
Conditions
Interventions
Intrapartum Ultrasound Group:None
Sponsors
The international peace maternity and child health hospital
Eligibility
Sex/Gender
Female
Inclusion criteria
Inclusion criteria: 1. Single fetal head position; 2. Exclude contraindications for vaginal trial of labor; 3. First-time mothers; 4. Participants sign the informed consent form; 5. Approval by the hospital ethics committee;
Exclusion criteria
Exclusion criteria: 1. No intrapartum ultrasound examination was conducted; 2. Suffering from internal and surgical complications; 3. Obstetric complications; 4. Have a history of alcohol abuse and drug abuse; 5. Stillbirth or severe birth defects occur; 6. Postpartum women; 7. History of uterine surgery; 8. Malformations of the uterus or birth canal;
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Fetal position;Angle of fetal head descent;Fetal head-perineal distance;Midline angle;Fetal head-symphysis distance;Progression distance;fetal head direction;Angle of pubic arch;Obstetric conjugate;Model performance evaluation indicators Accuracy rate, precision rate, sensitivity, specificity, positive predictive value, negative predictive value, F1 score, Area under the receiver operating characteristic curve AUC, Brier score, calibration curve, integrated discrimination improvement (IDI), net reclassification improvement Evaluation indicators such as NRI.; | — |
Secondary
| Measure | Time frame |
|---|---|
| Labor induction agents;Intrapartum BMI;Umbilical cord blood partial pressure of oxygen at delivery;Umbilical cord blood lactate at delivery;Gestational age at delivery;Electronic fetal monitoring;Umbilical cord blood pH at delivery;Maternal age;Umbilical cord blood base excess at delivery;Cervical dilatation;Status of membrane rupture;Uterine contraction intensity;Pre-pregnancy BMI;Birth weight of newborns;maternal height;mode of delivery;Apgar score;Labor analgesia;Estimated fetal weight; | — |
Countries
China
Contacts
Public ContactGu Wei
The international peace maternity and child health hospital
Outcome results
None listed