NCT02813681

Brief Summary

Historically, women who have chronic back pain after pregnancy have attributed the cause to the epidural procedure. While many studies have shown no greater incidence of generalized post-partum back pain in those who received an epidural, no studies have measured localized pressure sensitivity at the epidural insertion site. Short-term pressure sensitivity might limit patient's mobility and activities in the post-partum period. Understanding the factors that increase insertion site pressure sensitivity will allow the investigators to modify epidural placement technique in order to minimize this effect.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
80

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started May 2014

Typical duration for not_applicable

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 1, 2014

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2016

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2016

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

June 16, 2016

Completed
11 days until next milestone

First Posted

Study publicly available on registry

June 27, 2016

Completed
3.3 years until next milestone

Results Posted

Study results publicly available

October 3, 2019

Completed
Last Updated

October 3, 2019

Status Verified

June 1, 2016

Enrollment Period

2 years

First QC Date

June 16, 2016

Results QC Date

September 7, 2018

Last Update Submit

October 2, 2019

Conditions

Keywords

Acute Painultrasonography

Outcome Measures

Primary Outcomes (1)

  • Epidural Pressure Sensitivity at Level of Epidural Insertion

    pressure sensitivity at level of epidural insertion will be measured with an algometer (Newtons)

    Epidural pressure sensitivity was monitored 10 minutes prior to epidural insertion and then for 10 minutes on each day after epidural removal for 3 days.

Secondary Outcomes (5)

  • Induction Medication

    The chart review will determine the use of induction medication immediately prior to the epidural placement

  • Opioid Use During Labor

    A chart review of systemic opioids given to participant when the epidural is removed

  • Short-term Back Pain

    Participants will be asked if they have had back pain for longer than a week immediately prior to epidural placement

  • Number of Needle Repositions

    The number of needle reposition will be counted during epidural placement.

  • Number of Needle Insertions

    The number of needle insertions will be counted during epidural placement.

Study Arms (3)

US-epidural SVD

ACTIVE COMPARATOR

US-epidural SVD group - participants who received US examination prior to epidural placement. The purpose of this group is to determine if US derived landmarks reduce pressure sensitivity

Procedure: US-epidural SVD

(US sham- epidural SVD)

SHAM COMPARATOR

US sham- epidural SVD group- participants who received US examination process but with the monitor turned off.

Procedure: US sham- epidural SVD

SVD without an Epidural

PLACEBO COMPARATOR

Spontaneous vaginal delivery without an Epidural group The purpose of the control group is to serve as a baseline.

Procedure: Spontaneous vaginal delivery without an Epidural

Interventions

participants who received US examination prior to epidural placement. The purpose of this group is to determine if US derived landmarks reduce pressure sensitivity.

US-epidural SVD

participants who received US examination process but with the monitor turned off. The purpose of this group is to determine if the standard of care epidural placement technique will increase pressure sensitivity at the insertion site. The purpose of this group will also be to reduce the placebo effect from the US exam and to maintain blinding of the patient to their group status (US epidural or US sham epidural).

(US sham- epidural SVD)

Spontaneous vaginal delivery without an Epidural The purpose of the control group is to serve as a baseline (or a measure of normal). The control participant's measurement will be compared to those that did receive treatments (either epidural alone or ultrasound and epidural). This information will tell the investigator how many women have back pain after spontaneous vaginal delivery. Participant must meet the inclusion requirements and not meet any of the exclusion requirements

SVD without an Epidural

Eligibility Criteria

Age18 Years - 35 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • pregnant with term (37 - 41 weeks) singleton gestation
  • active labor
  • history of normal pregnancy
  • request an epidural
  • age between 18 - 35 years old
  • able to understand the protocol and provide voluntary, written, informed consent.

You may not qualify if:

  • history of spinal surgery
  • scoliosis
  • epidural or spinal placement within the last 5 days
  • neuropathic pain disorders
  • chronic opioid use
  • Texas Department of Criminal Justice patient
  • placental percreta
  • placental increta
  • placenta accreta
  • preeclampsia
  • eclampsia

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Back PainAcute Pain

Condition Hierarchy (Ancestors)

PainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Results Point of Contact

Title
Denise Wilkes
Organization
University of Texas Medical Branch

Study Officials

  • Denise Wilkes

    UTMB

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 16, 2016

First Posted

June 27, 2016

Study Start

May 1, 2014

Primary Completion

May 1, 2016

Study Completion

May 1, 2016

Last Updated

October 3, 2019

Results First Posted

October 3, 2019

Record last verified: 2016-06

Data Sharing

IPD Sharing
Will not share