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Individualized Timing of Analgesia and Effectiveness of Labor Analgesia

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ClinicalTrials.gov Identifier: NCT02920489
Recruitment Status : Completed
First Posted : September 30, 2016
Last Update Posted : July 19, 2017
Sponsor:
Information provided by (Responsible Party):
Dong-Xin Wang, Peking University First Hospital

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.

Condition or disease Intervention/treatment Phase
Labor Pain Analgesia, Obstetrical Early Medical Intervention Drug: Individualized epidural analgesia Drug: Routine epidural analgesia Not Applicable

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.

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 200 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Prevention
Official Title: Impact of Individualized Timing of Analgesia on the Effectiveness of Labor Analgesia: a Randomized Controlled Trial
Actual Study Start Date : August 2016
Actual Primary Completion Date : June 2017
Actual Study Completion Date : July 2017

Resource links provided by the National Library of Medicine


Arm Intervention/treatment
Experimental: Individualized epidural analgesia
Epidural catheterization will be performed after the beginning of the first stage of labor. Epidural analgesia will begin when asked by parturients and the numeric rating scale of pain is 5 or higher. A loading dose (10 ml mixture of 0.1% ropivacaine and 0.5 ug/ml sufentanil) will be administered through the epidural catheter. After a 20-minute observation, a patient-controlled analgesia pump (containing a mixture of 0.08% ropivacaine and 0.4 ug/ml sufentanil) will be connected to the epidural catheter and programmed to deliver a 6-ml bolus with a 20-minute lockout interval and a 4 ml/h background infusion. Analgesia will be terminated at the end of the third stage of labor.
Drug: Individualized 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.
Other Name: Individualized analgesia with sufentanil and ropivacaine

Active Comparator: Routine epidural analgesia
Epidural catheterization will be performed after the beginning of the first stage of labor and the cervix is dilated to 1 cm or more. Epidural analgesia will then begin. A loading dose (10 ml mixture of 0.1% ropivacaine and 0.5 ug/ml sufentanil) will be administered through the epidural catheter. After a 20-minute period observation, a patient-controlled analgesia pump (containing a mixture of 0.08% ropivacaine and 0.4 ug/ml sufentanil) will be connected to the epidural catheter and programmed to deliver a 6-ml bolus with a 20-minute lockout interval and a 4 ml/h background infusion. Analgesia will be terminated at the end of the third stage of labor.
Drug: Routine 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.
Other Name: Routine analgesia with sufentanil and ropivacaine




Primary Outcome Measures :
  1. The most severe labor pain score during labor [ Time Frame: Assessed at 24 hours after delivery ]
    Assessed with numeric rating scale, where 0 indicates no pain and 10 the worst pain.


Secondary Outcome Measures :
  1. Incidence of instrumental delivery [ Time Frame: At the time of delivery ]
    Incidence of instrumental delivery

  2. Incidence of Cesarean delivery [ Time Frame: At the time of delivery ]
    Incidence of Cesarean delivery

  3. Neonatal Apgar score [ Time Frame: At 1 and 5 minutes after delivery ]
    Neonatal Apgar score

  4. Maternal satisfaction with labor analgesia [ Time Frame: Assessed at 24 hours after delivery ]
    Assessed with the Likert scale, where 1=extremely dissatisfaction, 2=dissatisfaction, 3=neither dissatisfaction nor satisfaction, 4=satisfaction, 5=extremely satisfaction.

  5. Persistent pain score at 24 hours and 42 days after delivery [ Time Frame: At 24 hours and 42 days after delivery ]
    Assessed with numeric rating scale, where 0 indicates no pain and 10 the worst pain.

  6. Rate of breast-feeding [ Time Frame: At 24 hours and 42 days after delivery ]
    Rate of breast-feeding

  7. Incidence of postpartum depression [ Time Frame: At 42 days after delivery ]
    Postpartum depression will be diagnosed as Edinburgh postnatal depression scale of 10 or higher.



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Ages Eligible for Study:   18 Years to 36 Years   (Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No
Criteria

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.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02920489


Locations
China, Beijing
Peking University First Hospital
Beijing, Beijing, China, 100034
Sponsors and Collaborators
Peking University First Hospital
Investigators
Principal Investigator: Dong-Xin Wang, MD, PhD Peking University First Hospital

Publications:
Responsible Party: Dong-Xin Wang, Professor and Chairman, Department of Anesthesiology and Critical Care Medicine, Peking University First Hospital
ClinicalTrials.gov Identifier: NCT02920489     History of Changes
Other Study ID Numbers: 2016[1094]
ChiCTR-IPR-16007976 ( Registry Identifier: Chinese Clinical Trial Registry )
First Posted: September 30, 2016    Key Record Dates
Last Update Posted: July 19, 2017
Last Verified: July 2017
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

Keywords provided by Dong-Xin Wang, Peking University First Hospital:
severity of labor pain
individualized administration
neuraxial labor analgesia

Additional relevant MeSH terms:
Agnosia
Labor Pain
Perceptual Disorders
Neurobehavioral Manifestations
Neurologic Manifestations
Nervous System Diseases
Signs and Symptoms
Pain
Ropivacaine
Sufentanil
Anesthetics, Local
Anesthetics
Central Nervous System Depressants
Physiological Effects of Drugs
Sensory System Agents
Peripheral Nervous System Agents
Analgesics, Opioid
Narcotics
Analgesics
Adjuvants, Anesthesia
Anesthetics, Intravenous
Anesthetics, General