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Individualized Timing of Analgesia and Effectiveness of Labor Analgesia

Impact of Individualized Timing of Analgesia on the Effectiveness of Labor Analgesia: a Randomized Controlled Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02920489
Enrollment
200
Registered
2016-09-30
Start date
2016-08-31
Completion date
2017-07-31
Last updated
2017-07-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Analgesia, Obstetrical, Early Medical Intervention, Labor Pain

Keywords

severity of labor pain, individualized administration, neuraxial labor analgesia

Brief summary

Neuraxial analgesia is the gold standard to relieve labor pain. A recent Practice guidelines for obstetric anesthesia suggests that neuraxial analgesia should be provided in the early stage of labor (cervical dilation \< 5 cm) or on a individualized basis. The purpose of this randomized controlled trial is to investigate whether neuraxial labor analgesia administered on an individualized basis can improve analgesia quality and maternal satisfaction.

Detailed description

Neuraxial analgesia is the gold standard to relieve labor pain. It also helps to attenuate maternal anxiety and improve maternal satisfaction. A recent Practice guidelines for obstetric anesthesia suggests that neuraxial analgesia should be provided in the early stage of labor (cervical dilation \< 5 cm) or, for some special patients, be provided on a individualized basis. Studies showed that, when compared with late administration, early administration of labor analgesia resulted in equivocal findings for spontaneous, instrumented, and cesarean delivery. The investigators hypothesize that neuraxial labor analgesia provided on an individualized basis will further improve analgesia quality and maternal satisfaction. The purpose of this randomized controlled trial is to investigate whether neuraxial labor analgesia administered on an individualized basis can improve analgesia quality and maternal satisfaction.

Interventions

DRUGIndividualized epidural analgesia

Epidural analgesia will begin when asked by the parturients (during the first stage of labor) and the numeric rating scale is 5 or higher. Analgesia will be terminated at the end of the third stage of labor.

DRUGRoutine epidural analgesia

Epidural analgesia will begin when asked by the parturients (during the first stage of labor) and the cervix is dilated to 1 cm or more. Analgesia will be terminated at the end of the third stage of labor.

Sponsors

Peking University First Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 36 Years
Healthy volunteers
No

Inclusion criteria

1. Nulliparas (aged 18-36 years) with single cephalic term pregnancy; 2. Plan to deliver vaginally, and are considered suitable for a trial of vaginal delivery by obstetricians; 3. Admitted to the delivery room; 4. Agree to receive epidural analgesia during labor.

Exclusion criteria

1. History of psychiatric disease (indicate those that are diagnosed before or during pregnancy by psychiatrists); 2. Presence of contraindications to epidural analgesia, which includes: (1) History of infectious disease of the central nervous system (poliomyelitis, cerebrospinal meningitis, encephalitis, etc.); (2) History of spinal or intra-spinal disease (trauma or surgery of spinal column, intra-spinal canal mass, etc.); (3) Systemic infection (sepsis); (4) Skin or soft tissue infection at the site of epidural puncture; (5) Coagulopathy. 3. Other reasons that are considered unsuitable for study participation.

Design outcomes

Primary

MeasureTime frameDescription
The most severe labor pain score during laborAssessed at 24 hours after deliveryAssessed with numeric rating scale, where 0 indicates no pain and 10 the worst pain.

Secondary

MeasureTime frameDescription
Incidence of Cesarean deliveryAt the time of deliveryIncidence of Cesarean delivery
Neonatal Apgar scoreAt 1 and 5 minutes after deliveryNeonatal Apgar score
Maternal satisfaction with labor analgesiaAssessed at 24 hours after deliveryAssessed with the Likert scale, where 1=extremely dissatisfaction, 2=dissatisfaction, 3=neither dissatisfaction nor satisfaction, 4=satisfaction, 5=extremely satisfaction.
Incidence of instrumental deliveryAt the time of deliveryIncidence of instrumental delivery
Rate of breast-feedingAt 24 hours and 42 days after deliveryRate of breast-feeding
Incidence of postpartum depressionAt 42 days after deliveryPostpartum depression will be diagnosed as Edinburgh postnatal depression scale of 10 or higher.
Persistent pain score at 24 hours and 42 days after deliveryAt 24 hours and 42 days after deliveryAssessed with numeric rating scale, where 0 indicates no pain and 10 the worst pain.

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026