Epidural Analgesia in Different Cervix Diameter and the Rate of Cesarean Delivery

Summary

Epidural analgesia in the early stage of labor at cervix \< 4.0cm was considered as a risk period for increasing the rate of cesarean delivery. The more recent studies and the investigators' previous data indicated epidural analgesia can be performed as early as the cervical dilation approximately 2.0cm. The investigators hypothesized that different cervix diameter had different rate of cesarean delivery. This trial would investigate the correlation amongst different cervical dilation and the risk of cesarean section in nulliparous women at term.

Conditions

• Labor Pain

Interventions

PROCEDURE

Epidural labor analgesia

Epidural analgesia initiated at the onset of regular uterine contraction

PROCEDURE

Epidural labor analgesia

Epidural analgesia initiated at the cervix diameter 0.5cm

PROCEDURE

Epidural labor analgesia

Epidural analgesia initiated at the cervix diameter 1.0cm

PROCEDURE

Epidural labor analgesia

Epidural analgesia initiated at the cervix diameter 1.5cm

PROCEDURE

Epidural labor analgesia

Epidural analgesia initiated at the cervix diameter 2.0cm

PROCEDURE

Epidural labor analgesia

Epidural analgesia initiated at the cervix diameter 3.0cm

PROCEDURE

Epidural labor analgesia

Epidural analgesia initiated at the cervix diameter 4.0cm

PROCEDURE

Epidural labor analgesia

Epidural analgesia initiated at the cervix diameter 5.0cm

Sponsors & Collaborators

• HRSA/Maternal and Child Health Bureau

  collaborator FED

• Nanjing Medical University

  lead OTHER

Principal Investigators

• XiaoFeng Shen, MD · Nanjing Medical University

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

QUADRUPLE

Model

PARALLEL

Eligibility

Min Age

18 Years

Max Age

45 Years

Sex

FEMALE

Healthy Volunteers

No

Timeline & Regulatory

Start

2008-05-31

Primary Completion

2008-08-31

Completion

2008-08-31

Countries

• China

Study Locations