Electrical Epidural Stimulation Test for Detecting Epidural Catheter Reactivation in Obstetric Population

Not Applicable

Not yet recruiting

• Conditions: Obstetric Pain; Anesthesia, Local
• Interventions: Diagnostic Test: Electrical Epidural Stimulation Test (EST)

• Registration Number: NCT04983511
• Lead Sponsor: Stanford University

Brief Summary

Following labor, epidural or combined spinal-epidural (CSE) catheters are kept in place and deactivated. However, many women opt for procedures such as tubal ligation, which may require epidural anesthesia as a method of pain relief. Our study aims to confirm the ability to predict reactivation of epidural catheter in postpartum females through the electrical epidural stimulation test (EST) which was first described by the PI of this study approximately 20 years ago.

Detailed Description

In this study, investigators hope to investigate the ability of the electrical epidural stimulation test (EST) to predict reactivation of epidural catheter in postpartum females. The standard practice for confirming the reactivation of epidural or CSE catheters requires methods such as dosing the local anesthetic. With the EST test this will allow for the anesthesiologist to determine whether or not the epidural can be activated immediately.

Basic Information
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Recruitment & Eligibility
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Study & Design

Study Timeline

• Study First Submitted: 2021-07-20
• Study First Submitted QC: 2021-07-20
• Study First Posted: 2021-07-30
• Status Verified: 2023-09
• Last Update Submitted: 2023-09-20
• Last Update Posted: 2023-09-22
• Study Start: 2024-06
• Primary Completion: 2024-12
• Study Completion: 2024-12

Recruitment & Eligibility

• Status: NOT_YET_RECRUITING
• Sex: Female
• Target Recruitment: 40

Inclusion Criteria

• Females, 18 years and older
• American Society of Anesthesiologists physical status I or II
• Status post natural labor/birth process or C-section
• Has epidural or CSE catheter
• Upcoming procedure requiring epidural/CSE anesthesia for pain management

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Exclusion Criteria

• 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
• Did not receive epidural or CSE anesthesia

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Electrical Epidural Stimulation Test (EST)	Electrical Epidural Stimulation Test (EST)	Postpartum women are given EST to predict epidural catheter reactivation for their subsequent procedures (i.e. tubal ligation).

Primary Outcome Measures

Name	Time	Method
Electrical Epidural Stimulation Test	Duration of EST test (approximately 1-2 hours)	Investigate the ability of the electrical epidural stimulation test (EST) to predict epidural catheter reactivation.