Obstetric Placement Study Using Electrical Epidural Stimulation Test (EST)

This study is looking at a way to make sure epidural catheters are placed correctly for pain relief during labor. It uses a test called the Electrical Epidural Stimulation Test (EST), which measures how your body responds to a small electrical current. The goal is to confirm the epidural catheter is in the right spot, especially when using a common technique called combined spinal-epidural (CSE). You may be able to join if you are a woman aged 18 or older, have a full-term pregnancy, and are requesting an epidural early in labor. The study is currently unclear on its recruitment status and plans to enroll 40 participants.

Study design
This is an interventional study, meaning participants will receive a specific intervention. It aims to enroll 40 women.
What's involved
You would undergo an Electrical Epidural Stimulation Test (EST) which takes approximately 1-2 hours.
Compensation
Not stated in the trial record.
Follow-up
Not specified.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT04109365

Obstetric Placement Study Using EST

Recruiting
NAAges 18+InterventionalDiagnostic
Stanford University
~40 participants
Updated 2025-05-01 on ClinicalTrials.gov
What's tested:Electrical Epidural Stimulation Test (EST)

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Electrical Epidural Stimulation Test
Measured over Duration of EST test (approximately 1-2 hours)
Obstetric Pain
Anesthesia, Local
1 sites across 1 states
California1

Opens a ready-to-send draft in your own email app — review before sending.

Do you actually qualify for this trial?

Add a private profile and we'll compare every criterion below against your situation — and tell you which ones are met, uncertain, or excluding.

Check eligibility for this trial ~2 min · HIPAA-protected · delete anytime
Eligibility criteria

Inclusion

Females, 18 years and older
American Society of Anesthesiologists physical status I or II
Full-term pregnancy with request for epidural early in labour (i.e. Regular labor or C-Section)

Exclusion

Contraindication to regional anesthesia
Allergy or hypersensitivity to lidocaine, bupivacaine, or fentanyl
Use of sedatives or opioids
Abnormal vertebrae anatomy
Neurological disorder with lumbar involvement
Implanted electronic devices
  • Electrical Epidural Stimulation TestDuration of EST test (approximately 1-2 hours)

    Investigate the ability of the electrical epidural stimulation test (EST) to determine the position of the epidural catheter anesthesia for labour analgesia after low-dose anesthetic as compared to the gold standard of clinical assessment.