Abnormal fetal heart rate monitoring
Conditions
Interventions
Left tilt position group:Left tilt position
Sponsors
Hangzhou Women's Hospital
Eligibility
Sex/Gender
Female
Inclusion criteria
Inclusion criteria: 1.Term singleton pregnancy with planned vaginal delivery; 2.Height: 150-180 cm; 3.ASA Grade II; 4.Body mass index (BMI) <35 kg·m^-2; 5.Fetal heart rate monitoring is classified as type I according to the NICHD guidelines; 6.Intraspinal labor analgesia is required
Exclusion criteria
Exclusion criteria: 1.Fetal macrosomia without cephalic presentation; 2.Uterine abnormalities (such as large fibroids, bicornuate uterus); 3.Polyhydramnios; 4.Rupture of membranes and oligohydramnios; 5.Intrauterine growth restriction; 6.Hypertension, diabetes or eclampsia during pregnancy or non-pregnancy; 7.Hypertension disease or any disorder related to autonomic neuropathy; 8.Contraindications for epidural anesthesia; 9.Subjects who refused to sign the informed consent form
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Rate of NICHD guideline Type II or III patterns within 40 minutes after intrathecal labor analgesia; | — |
Secondary
| Measure | Time frame |
|---|---|
| Rate of NICHD guideline Type II patterns during 0–20 minutes and 20–40 minutes after intrathecal labor analgesia;Rate of NICHD guideline Type ? patterns during 0–20 minutes and 20–40 minutes after intrathecal labor analgesia;Fetal heart rate baseline, fetal heart rate accelerations, fetal heart rate decelerations, and fetal heart rate variability within 40 minutes after intrathecal labor analgesia;Neonatal outcomes: Apgar scores at 1 minute and 5 minutes after birth;Maternal analgesic efficacy evaluation: At immediate, 10 minutes, 20 minutes, 30 minutes, and 40 minutes after epidural loading dose administration, record pain score, sensory block level to temperature, motor block score, and number of patient-controlled analgesia bolus presses.;Maternal hemodynamic evaluation: Incidence of maternal hypotension, types and doses of vasopressor agents used.;Uterine contraction evaluation: Use of uterotonic agents and their dosages; uterine contraction patterns during the 40 minutes before and after labor analgesia (number of episodes and number of parturients experiencing uterine tachysystole and uterine hypertonus).;Mode of delivery: Number of vaginal deliveries, instrument-assisted deliveries, and conversions to cesarean section.; | — |
Countries
China
Contacts
Public ContactZhou Zhenfeng
Hangzhou Women's Hospital
Outcome results
None listed