Labor Analgesia in the Latent Phrase

Nanjing Medical University15,000 enrolled

Overview

Painless labor is an essential part in woman's health care. Labor analgesia in the active phrase is in popular use currently. However, parturients are still haunted by the labor delivery pain in the latent phrase up to 7-8 hours, especially for the nulliparas. Therefore, we hypothesized that labor analgesia in the latent phrase of the first delivery stage would provide superior health care for laboring women. In addition, such analgesia technique would not prolong the time of uterine dilation and labor delivering.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Enrollment

15,000

Conditions

Labor Pain

Interventions

Active phrase epidural analgesiaPROCEDURE

Continuous epidural analgesia with sufentanil plus ropivacaine

Latent phrase epidural analgesiaPROCEDURE

Continuous epidural analgesia with sufentanil plus ropivacaine

Eligibility

Sex: FEMALEMin age: 18 YearsMax age: 45 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Nulliparas * Required labor analgesia * Chinese. Exclusion Criteria: * Allergic to opioids and/or local anesthetics * Failed to performing epidural catheterization * Organic dysfunction * Contraindications for epidural analgesia.

Locations (1)

Nanjing Maternal and Child Health Care Hospital

Nanjing, Jiangsu, China

Outcomes

Primary Outcomes

Rate of Cesarean delivery

Time frame: The time of the end of the labor

Secondary Outcomes

Time of latent phrase

Time frame: From the beginning of regular contraction of uterus to the diameter of cervix to 4cm

Time of labor

Time frame: From the beginning of regular contraction of uterus to the end of the labor

Overall feeling of satisfaction of analgesia

Time frame: From the beginning of regular contraction of uterus to the end of the labor

Side effects

Time frame: From the beginning of regular contraction of uterus to the end of the labor

VAS pain intensity

Time frame: From the intinition of analgesia to the cervical dilation >4cm

Instrumental delivery

Time frame: The end of the time of the labor

Oxytocin infusion rate

Time frame: During the whole period of laboring

Neonatal Apgar scores

Time frame: 1st min, 5th min, 10th min and 20th min

Umbilical gas measurement

Time frame: After delivering of the fetus

Maternal oral temperature

Time frame: From the initiation of analgesia to the end of the labor

Data from ClinicalTrials.gov

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