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

Sponsor
Nanjing Medical University (Other)
Overall Status
Completed
CT.gov ID
NCT00677274
Collaborator
HRSA/Maternal and Child Health Bureau (U.S. Fed)
780
1
8
3
258.1

Study Details

Study Description

Brief 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.

Condition or Disease Intervention/Treatment Phase
  • Procedure: Epidural labor analgesia
  • Procedure: Epidural labor analgesia
  • Procedure: Epidural labor analgesia
  • Procedure: Epidural labor analgesia
  • Procedure: Epidural labor analgesia
  • Procedure: Epidural labor analgesia
  • Procedure: Epidural labor analgesia
  • Procedure: Epidural labor analgesia
N/A

Study Design

Study Type:
Interventional
Actual Enrollment :
780 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose:
Treatment
Official Title:
Epidural Labor Analgesia in Different Cervical Dilation Diameter and the Risk of Cesarean Delivery
Study Start Date :
May 1, 2008
Actual Primary Completion Date :
Aug 1, 2008
Actual Study Completion Date :
Aug 1, 2008

Arms and Interventions

Arm Intervention/Treatment
Active Comparator: 1

Epidural analgesia initiated at the cervix 0cm

Procedure: Epidural labor analgesia
Epidural analgesia initiated at the onset of regular uterine contraction
Other Names:
  • Peridural analgesia
  • Active Comparator: 2

    Epidural analgesia initiated at the cervix 0.5cm

    Procedure: Epidural labor analgesia
    Epidural analgesia initiated at the cervix diameter 0.5cm
    Other Names:
  • Peridural analgesia
  • Active Comparator: 3

    Epidural analgesia initiated at the cervix 1.0cm

    Procedure: Epidural labor analgesia
    Epidural analgesia initiated at the cervix diameter 1.0cm
    Other Names:
  • Peridural analgesia
  • Active Comparator: 4

    Epidural analgesia initiated at the cervix 1.5cm

    Procedure: Epidural labor analgesia
    Epidural analgesia initiated at the cervix diameter 1.5cm
    Other Names:
  • Peridural analgesia
  • Active Comparator: 5

    Epidural analgesia initiated at the cervix 2.0cm

    Procedure: Epidural labor analgesia
    Epidural analgesia initiated at the cervix diameter 2.0cm
    Other Names:
  • Peridural analgesia
  • Active Comparator: 6

    Epidural analgesia initiated at the cervix 3.0cm

    Procedure: Epidural labor analgesia
    Epidural analgesia initiated at the cervix diameter 3.0cm
    Other Names:
  • Peridural analgesia
  • Active Comparator: 7

    Epidural analgesia initiated at the cervix 4.0cm

    Procedure: Epidural labor analgesia
    Epidural analgesia initiated at the cervix diameter 4.0cm
    Other Names:
  • Peridural analgesia
  • Active Comparator: 8

    Epidural analgesia initiated at the cervix 5.0cm

    Procedure: Epidural labor analgesia
    Epidural analgesia initiated at the cervix diameter 5.0cm
    Other Names:
  • Peridural analgesia
  • Outcome Measures

    Primary Outcome Measures

    1. Rate of cesarean delivery [10 min after successful vaginal delivery]

    Secondary Outcome Measures

    1. Rate of instrument-assisted delivery [10 min after successful vaginal delivery]

    2. Indications of cesarean delivery [10 min after cesarean section]

    3. Maternal Visual Analog Scale (VAS) rating of pain [10 min prior to analgesia, at the cervix <4.0 cm, cervix 4.0-10.0 cm, cervix >10.0cm second stage of labor, 15min after vaginal delivery]

    4. Duration of analgesia [0 min after analgesia to 15min after the disappearance of sensory block]

    5. Maternal satisfaction with analgesia [30 min after the vaginal delivery]

    6. Maternal oral temperature [0, 15, 30, 60, 120, 240, 480min after analgesia]

    7. Use of oxytocin after analgesia [30 min after vaginal delivery]

    8. Maximal oxytocin dose [30 min after vaginal delivery]

    9. Low back pain at 3 months after vaginal delivery [Three months after vaginal delivery]

    10. Breastfeeding success at 6 weeks after vaginal delivery [Six weeks after successful delivery]

    11. Neonatal one-minute Apgar scale [1 min after baby was born]

    12. Neonatal five-minute Apgar scale [Five min after baby was born]

    13. Umbilical-cord gases analysis [0 min after baby was born]

    14. Neonatal sepsis evaluation [30 min after baby was born]

    15. Neonatal antibiotic treatment [1 week after baby was born]

    16. Incidence of maternal side effects [1 week after successful vaginal delivery]

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years to 45 Years
    Sexes Eligible for Study:
    Female
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    1. Nulliparous women

    2. 18 years and < 45 years

    3. Spontaneous labor

    4. Analgesia request

    Exclusion Criteria:
    1. Allergy to opioids, a history of the use of centrally-acting drugs of any sort, chronic pain and psychiatric diseases records

    2. Participants younger than 18 years or older than 45 years

    3. Those who were not willing to or could not finish the whole study at any time

    4. Using or used in the past 14 days of the monoamine oxidase inhibitors

    5. Alcohol addictive or narcotic dependent patients were excluded for their influence on the analgesic efficacy of the epidural analgesics;

    6. Subjects with a nonvertex presentation or scheduled induction of labor

    7. Cervical dilation was 5.0cm or greater before performing epidural puncture and catheterization.

    8. Diagnosed diabetes mellitus and pregnancy-induced hypertension

    9. Twin gestation and breech presentation.

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Nanjing Maternal and Child Health Care Hospital Nanjing Jiangsu China 210004

    Sponsors and Collaborators

    • Nanjing Medical University
    • HRSA/Maternal and Child Health Bureau

    Investigators

    • Study Director: XiaoFeng Shen, MD, Nanjing Medical University

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    None provided.
    Responsible Party:
    , ,
    ClinicalTrials.gov Identifier:
    NCT00677274
    Other Study ID Numbers:
    • NJFY-02028M03
    • NSR02970
    First Posted:
    May 14, 2008
    Last Update Posted:
    Feb 12, 2009
    Last Verified:
    Feb 1, 2009
    Keywords provided by , ,
    Additional relevant MeSH terms:

    Study Results

    No Results Posted as of Feb 12, 2009