Trial Outcomes & Findings for DPE Technique in Labor Epidural for Morbidly Obese Women (NCT NCT03074695)

NCT ID: NCT03074695

Last Updated: 2022-06-01

Results Overview

Composite outcome: asymmetric block, top-up interventions required, catheter adjustments, replacement of epidural catheter, or failure or block requiring emergency general anesthesia or rescue neuraxial prior to cesarean delivery Values shared are indicative of the number of participants who have the one or more of the composite elements for the composite outcome.

Recruitment status

COMPLETED

Study phase

PHASE4

Target enrollment

141 participants

Primary outcome timeframe

From time of randomization to time of delivery, assessed at standardized times (ever 2 hour) until delivery (estimated 72 hours).

Results posted on

2022-06-01

Participant Flow

Participant milestones

Participant milestones
Measure
Dural Puncture Epidural (DPE)
Women who have analgesia initiated with a DPE technique Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm cerebral spinal fluid (CSF) position. No intrathecal dosing Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm CSF position. No intrathecal dosing. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Standard Epidural (EPL)
Women who have analgesia initiated with an epidural technique Standard Epidural (EPL): Standard epidural placement Standard Epidural (EPL): Standard epidural placement. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Overall Study
STARTED
70
71
Overall Study
COMPLETED
66
66
Overall Study
NOT COMPLETED
4
5

Reasons for withdrawal

Reasons for withdrawal
Measure
Dural Puncture Epidural (DPE)
Women who have analgesia initiated with a DPE technique Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm cerebral spinal fluid (CSF) position. No intrathecal dosing Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm CSF position. No intrathecal dosing. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Standard Epidural (EPL)
Women who have analgesia initiated with an epidural technique Standard Epidural (EPL): Standard epidural placement Standard Epidural (EPL): Standard epidural placement. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Overall Study
Delivered with caesarean before request for analgesia
1
1
Overall Study
Research staff not available
1
2
Overall Study
Did not receive neuraxial block
2
2

Baseline Characteristics

DPE Technique in Labor Epidural for Morbidly Obese Women

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Dural Puncture Epidural (DPE)
n=66 Participants
Women who have analgesia initiated with a DPE technique Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm cerebral spinal fluid (CSF) position. No intrathecal dosing Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm CSF position. No intrathecal dosing. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Standard Epidural (EPL)
n=66 Participants
Women who have analgesia initiated with an epidural technique Standard Epidural (EPL): Standard epidural placement Standard Epidural (EPL): Standard epidural placement. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Total
n=132 Participants
Total of all reporting groups
Age, Continuous
29.0 years
n=5 Participants
30.0 years
n=7 Participants
30.0 years
n=5 Participants
Sex: Female, Male
Female
66 Participants
n=5 Participants
66 Participants
n=7 Participants
132 Participants
n=5 Participants
Sex: Female, Male
Male
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
10 Participants
n=5 Participants
1 Participants
n=7 Participants
11 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
50 Participants
n=5 Participants
61 Participants
n=7 Participants
111 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
6 Participants
n=5 Participants
4 Participants
n=7 Participants
10 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
2 Participants
n=5 Participants
0 Participants
n=7 Participants
2 Participants
n=5 Participants
Race (NIH/OMB)
Asian
3 Participants
n=5 Participants
2 Participants
n=7 Participants
5 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
22 Participants
n=5 Participants
31 Participants
n=7 Participants
53 Participants
n=5 Participants
Race (NIH/OMB)
White
26 Participants
n=5 Participants
26 Participants
n=7 Participants
52 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
3 Participants
n=5 Participants
2 Participants
n=7 Participants
5 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
10 Participants
n=5 Participants
5 Participants
n=7 Participants
15 Participants
n=5 Participants

PRIMARY outcome

Timeframe: From time of randomization to time of delivery, assessed at standardized times (ever 2 hour) until delivery (estimated 72 hours).

Composite outcome: asymmetric block, top-up interventions required, catheter adjustments, replacement of epidural catheter, or failure or block requiring emergency general anesthesia or rescue neuraxial prior to cesarean delivery Values shared are indicative of the number of participants who have the one or more of the composite elements for the composite outcome.

Outcome measures

Outcome measures
Measure
Dural Puncture Epidural (DPE)
n=66 Participants
Women who have analgesia initiated with a DPE technique Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm cerebral spinal fluid (CSF) position. No intrathecal dosing Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm CSF position. No intrathecal dosing. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Standard Epidural (EPL)
n=66 Participants
Women who have analgesia initiated with an epidural technique Standard Epidural (EPL): Standard epidural placement Standard Epidural (EPL): Standard epidural placement. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Number of Participants Who Required Asymmetric Block, Top-up Interventions, Catheter Adjustments, Replacement of Epidural Catheter, or Failure of Block Requiring Emergency General Anesthesia or Rescue Neuraxial Prior to Cesarean Delivery
34 Participants
32 Participants

SECONDARY outcome

Timeframe: Data will be collected for the first 30 minutes of epidural placement to achieve target pain ≤ 1/10

Time in minutes to numeric pain relief scale \<= 1. Less time is better, as the pain relief scale is from 0 - 10, where 10 is the worst imaginable and 0 is no pain.

Outcome measures

Outcome measures
Measure
Dural Puncture Epidural (DPE)
n=66 Participants
Women who have analgesia initiated with a DPE technique Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm cerebral spinal fluid (CSF) position. No intrathecal dosing Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm CSF position. No intrathecal dosing. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Standard Epidural (EPL)
n=66 Participants
Women who have analgesia initiated with an epidural technique Standard Epidural (EPL): Standard epidural placement Standard Epidural (EPL): Standard epidural placement. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Time to Pain Relief
12 minutes
Interval 9.0 to 18.0
15 minutes
Interval 9.0 to 21.0

SECONDARY outcome

Timeframe: From time of randomization to time of baby delivery (estimated 72 hours)

The Bromage Score is used to measure degree of motor block, with a range of 1 to 5. A lower score indicates more motor block, so a higher value means a better outcome.

Outcome measures

Outcome measures
Measure
Dural Puncture Epidural (DPE)
n=66 Participants
Women who have analgesia initiated with a DPE technique Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm cerebral spinal fluid (CSF) position. No intrathecal dosing Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm CSF position. No intrathecal dosing. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Standard Epidural (EPL)
n=66 Participants
Women who have analgesia initiated with an epidural technique Standard Epidural (EPL): Standard epidural placement Standard Epidural (EPL): Standard epidural placement. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Degree of Motor Block as Measured by the Lowest Bromage Score
5 score on a scale
Interval 5.0 to 5.0
5 score on a scale
Interval 5.0 to 5.0

SECONDARY outcome

Timeframe: From time of randomization to time of 24 hours after baby delivery (estimated 72 hours)

Hypotension, fetal bradycardia, post-dural puncture headache

Outcome measures

Outcome measures
Measure
Dural Puncture Epidural (DPE)
n=66 Participants
Women who have analgesia initiated with a DPE technique Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm cerebral spinal fluid (CSF) position. No intrathecal dosing Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm CSF position. No intrathecal dosing. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Standard Epidural (EPL)
n=66 Participants
Women who have analgesia initiated with an epidural technique Standard Epidural (EPL): Standard epidural placement Standard Epidural (EPL): Standard epidural placement. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Number of Participants With Maternal Adverse Events
Hypotension
2 Participants
6 Participants
Number of Participants With Maternal Adverse Events
Fetal Bradycardia
7 Participants
7 Participants
Number of Participants With Maternal Adverse Events
Post-dural Puncture Headache
0 Participants
0 Participants

SECONDARY outcome

Timeframe: From time of randomization to time of baby delivery (estimated 72 hours)

The second stage of labor begins when the cervix is completely dilated and ends with the delivery of the baby.

Outcome measures

Outcome measures
Measure
Dural Puncture Epidural (DPE)
n=66 Participants
Women who have analgesia initiated with a DPE technique Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm cerebral spinal fluid (CSF) position. No intrathecal dosing Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm CSF position. No intrathecal dosing. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Standard Epidural (EPL)
n=66 Participants
Women who have analgesia initiated with an epidural technique Standard Epidural (EPL): Standard epidural placement Standard Epidural (EPL): Standard epidural placement. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Duration of Second Stage of Labor
0.6 hours
Interval 0.16 to 1.16
0.32 hours
Interval 0.2 to 1.48

SECONDARY outcome

Timeframe: Total anesthetic time from time of epidural placement until discontinuation (estimated 72 hours)

Total labor epidural time

Outcome measures

Outcome measures
Measure
Dural Puncture Epidural (DPE)
n=66 Participants
Women who have analgesia initiated with a DPE technique Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm cerebral spinal fluid (CSF) position. No intrathecal dosing Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm CSF position. No intrathecal dosing. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Standard Epidural (EPL)
n=66 Participants
Women who have analgesia initiated with an epidural technique Standard Epidural (EPL): Standard epidural placement Standard Epidural (EPL): Standard epidural placement. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Total Labor Epidural Time
10.76 hours
Interval 4.6 to 18.61
10.11 hours
Interval 6.01 to 15.19

SECONDARY outcome

Timeframe: From time of randomization to time of baby delivery (estimated 72 hours)

Consumption of epidural medications in ml including physician boluses, programmed boluses and patient controlled boluses.

Outcome measures

Outcome measures
Measure
Dural Puncture Epidural (DPE)
n=66 Participants
Women who have analgesia initiated with a DPE technique Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm cerebral spinal fluid (CSF) position. No intrathecal dosing Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm CSF position. No intrathecal dosing. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Standard Epidural (EPL)
n=66 Participants
Women who have analgesia initiated with an epidural technique Standard Epidural (EPL): Standard epidural placement Standard Epidural (EPL): Standard epidural placement. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Total Anesthetic (Ropivacaine 0.1% + Fentanyl 2) Dose Required Per Hour
10.48 mL/hour
Interval 8.54 to 14.26
10.88 mL/hour
Interval 8.15 to 16.11

SECONDARY outcome

Timeframe: From time of randomization to time of baby delivery (estimated 72 hours)

Spontaneous, assisted, or cesarean delivery

Outcome measures

Outcome measures
Measure
Dural Puncture Epidural (DPE)
n=66 Participants
Women who have analgesia initiated with a DPE technique Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm cerebral spinal fluid (CSF) position. No intrathecal dosing Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm CSF position. No intrathecal dosing. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Standard Epidural (EPL)
n=66 Participants
Women who have analgesia initiated with an epidural technique Standard Epidural (EPL): Standard epidural placement Standard Epidural (EPL): Standard epidural placement. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Mode of Delivery
Spontaneous
39 Participants
40 Participants
Mode of Delivery
Assisted
4 Participants
3 Participants
Mode of Delivery
Cesarean delivery
23 Participants
23 Participants

SECONDARY outcome

Timeframe: From time of randomization, every 2 hours until time of delivery (estimated 72 hours)

Numeric pain rating scale (0-10), where higher values indicate more pain or larger change.

Outcome measures

Outcome measures
Measure
Dural Puncture Epidural (DPE)
n=66 Participants
Women who have analgesia initiated with a DPE technique Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm cerebral spinal fluid (CSF) position. No intrathecal dosing Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm CSF position. No intrathecal dosing. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Standard Epidural (EPL)
n=66 Participants
Women who have analgesia initiated with an epidural technique Standard Epidural (EPL): Standard epidural placement Standard Epidural (EPL): Standard epidural placement. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Highest Recorded Pain Rating
0 score on a scale
Interval 0.0 to 4.0
1 score on a scale
Interval 0.0 to 5.0

OTHER_PRE_SPECIFIED outcome

Timeframe: Postpartum day 1

Maternal satisfaction with anesthetic care on a Likert scale from 0 - 10, 0 being unsatisfied to 10 being completely satisfied.

Outcome measures

Outcome measures
Measure
Dural Puncture Epidural (DPE)
n=66 Participants
Women who have analgesia initiated with a DPE technique Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm cerebral spinal fluid (CSF) position. No intrathecal dosing Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm CSF position. No intrathecal dosing. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Standard Epidural (EPL)
n=66 Participants
Women who have analgesia initiated with an epidural technique Standard Epidural (EPL): Standard epidural placement Standard Epidural (EPL): Standard epidural placement. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Satisfaction in Anesthetic Care - Likert Scale
10 score on a scale
Interval 8.0 to 10.0
9 score on a scale
Interval 8.0 to 10.0

Adverse Events

Dural Puncture Epidural (DPE)

Serious events: 0 serious events
Other events: 35 other events
Deaths: 0 deaths

Standard Epidural (EPL)

Serious events: 0 serious events
Other events: 32 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Dural Puncture Epidural (DPE)
n=66 participants at risk
Women who have analgesia initiated with a DPE technique Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm cerebral spinal fluid (CSF) position. No intrathecal dosing Dural puncture epidural (DPE): Epidural with spinal needle placed to confirm CSF position. No intrathecal dosing. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Standard Epidural (EPL)
n=66 participants at risk
Women who have analgesia initiated with an epidural technique Standard Epidural (EPL): Standard epidural placement Standard Epidural (EPL): Standard epidural placement. Ropivacaine 0.1% and Fentanyl 2mcg/mL.
Cardiac disorders
Hypotension
3.0%
2/66 • From time of randomization to time of 24 hours after baby delivery (estimated 72 hours)
9.1%
6/66 • From time of randomization to time of 24 hours after baby delivery (estimated 72 hours)
Pregnancy, puerperium and perinatal conditions
Fetal Bradycardia
10.6%
7/66 • From time of randomization to time of 24 hours after baby delivery (estimated 72 hours)
10.6%
7/66 • From time of randomization to time of 24 hours after baby delivery (estimated 72 hours)
Nervous system disorders
Post-dural Puncture Headache
0.00%
0/66 • From time of randomization to time of 24 hours after baby delivery (estimated 72 hours)
0.00%
0/66 • From time of randomization to time of 24 hours after baby delivery (estimated 72 hours)
Skin and subcutaneous tissue disorders
Pruritus
40.9%
27/66 • From time of randomization to time of 24 hours after baby delivery (estimated 72 hours)
37.9%
25/66 • From time of randomization to time of 24 hours after baby delivery (estimated 72 hours)
General disorders
Nausea
16.7%
11/66 • From time of randomization to time of 24 hours after baby delivery (estimated 72 hours)
16.7%
11/66 • From time of randomization to time of 24 hours after baby delivery (estimated 72 hours)

Additional Information

Ashraf Habib, M.D.

Duke University

Phone: 919-681-4544

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place