Trial Outcomes & Findings for IINB vs. QLB for Elective Open Inguinal Herniorrhaphy (NCT NCT03007966)

NCT ID: NCT03007966

Last Updated: 2019-11-18

Results Overview

Assessed on an 11-point (0-10) numeric analog scale with a higher score denoting a worse outcome.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

60 participants

Primary outcome timeframe

8 hrs Post Nerve Block

Results posted on

2019-11-18

Participant Flow

Participant milestones

Participant milestones
Measure
Ilioinguinal / Iliohypogastric Block
Patient's randomized to receive an Ilioinguinal / Iliohypogastric nerve block (IINB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a supine position in a manner consistent with the technique described by Willschke, but modified to utilize an in-plane technique rather than an out-of-plane technique for needle to ultrasound probe orientation. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Ilioinguinal / Iliohypogastric Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided ilioinguinal / iliohypogastric block technique.
Quadratus Lumborum Block
Patient's randomized to receive a Quadratus Lumborum block (QLB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a lateral position in a manner consistent with the technique described by Børglum. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Quadratus Lumborum Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided quadratus lumborum block technique. Bupivacaine 0.25%: Administered as part of the local anesthetic mixture Epinephrine 1:200k: Administered as part of the local anesthetic mixture Clonidine 1.66mcg/c
Overall Study
STARTED
30
30
Overall Study
COMPLETED
29
30
Overall Study
NOT COMPLETED
1
0

Reasons for withdrawal

Reasons for withdrawal
Measure
Ilioinguinal / Iliohypogastric Block
Patient's randomized to receive an Ilioinguinal / Iliohypogastric nerve block (IINB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a supine position in a manner consistent with the technique described by Willschke, but modified to utilize an in-plane technique rather than an out-of-plane technique for needle to ultrasound probe orientation. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Ilioinguinal / Iliohypogastric Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided ilioinguinal / iliohypogastric block technique.
Quadratus Lumborum Block
Patient's randomized to receive a Quadratus Lumborum block (QLB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a lateral position in a manner consistent with the technique described by Børglum. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Quadratus Lumborum Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided quadratus lumborum block technique. Bupivacaine 0.25%: Administered as part of the local anesthetic mixture Epinephrine 1:200k: Administered as part of the local anesthetic mixture Clonidine 1.66mcg/c
Overall Study
Did not meeting inclusion/exclusion
1
0

Baseline Characteristics

IINB vs. QLB for Elective Open Inguinal Herniorrhaphy

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Ilioinguinal / Iliohypogastric Block
n=29 Participants
Patient's randomized to receive an Ilioinguinal / Iliohypogastric nerve block (IINB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a supine position in a manner consistent with the technique described by Willschke, but modified to utilize an in-plane technique rather than an out-of-plane technique for needle to ultrasound probe orientation. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Ilioinguinal / Iliohypogastric Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided ilioinguinal / iliohypogastric block technique.
Quadratus Lumborum Block
n=30 Participants
Patient's randomized to receive a Quadratus Lumborum block (QLB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a lateral position in a manner consistent with the technique described by Børglum. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Quadratus Lumborum Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided quadratus lumborum block technique. Bupivacaine 0.25%: Administered as part of the local anesthetic mixture Epinephrine 1:200k: Administered as part of the local anesthetic mixture Clonidine 1.66mcg/c
Total
n=59 Participants
Total of all reporting groups
Age, Continuous
53.4 Years
STANDARD_DEVIATION 18.6 • n=5 Participants
58.9 Years
STANDARD_DEVIATION 11.2 • n=7 Participants
56.2 Years
STANDARD_DEVIATION 14.84 • n=5 Participants
Sex: Female, Male
Female
3 Participants
n=5 Participants
3 Participants
n=7 Participants
6 Participants
n=5 Participants
Sex: Female, Male
Male
26 Participants
n=5 Participants
27 Participants
n=7 Participants
53 Participants
n=5 Participants
Race/Ethnicity, Customized
Caucasian
17 Participants
n=5 Participants
25 Participants
n=7 Participants
42 Participants
n=5 Participants
Race/Ethnicity, Customized
African American
10 Participants
n=5 Participants
4 Participants
n=7 Participants
14 Participants
n=5 Participants
Race/Ethnicity, Customized
Hispanic
2 Participants
n=5 Participants
1 Participants
n=7 Participants
3 Participants
n=5 Participants
Region of Enrollment
United States
29 participants
n=5 Participants
30 participants
n=7 Participants
59 participants
n=5 Participants
BMI
25.2 kg/m^2
STANDARD_DEVIATION 4.3 • n=5 Participants
26.4 kg/m^2
STANDARD_DEVIATION 6.2 • n=7 Participants
25.8 kg/m^2
STANDARD_DEVIATION 5.2 • n=5 Participants

PRIMARY outcome

Timeframe: 8 hrs Post Nerve Block

Assessed on an 11-point (0-10) numeric analog scale with a higher score denoting a worse outcome.

Outcome measures

Outcome measures
Measure
Ilioinguinal / Iliohypogastric Block
n=29 Participants
Patient's randomized to receive an Ilioinguinal / Iliohypogastric nerve block (IINB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a supine position in a manner consistent with the technique described by Willschke, but modified to utilize an in-plane technique rather than an out-of-plane technique for needle to ultrasound probe orientation. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Ilioinguinal / Iliohypogastric Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided ilioinguinal / iliohypogastric block technique.
Quadratus Lumborum Block
n=30 Participants
Patient's randomized to receive a Quadratus Lumborum block (QLB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a lateral position in a manner consistent with the technique described by Børglum. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Quadratus Lumborum Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided quadratus lumborum block technique. Bupivacaine 0.25%: Administered as part of the local anesthetic mixture Epinephrine 1:200k: Administered as part of the local anesthetic mixture Clonidine 1.66mcg/c
Post-operative Verbal Pain Score With Movement
5.10 score on a scale
Standard Deviation 3.02
5.03 score on a scale
Standard Deviation 3.01

SECONDARY outcome

Timeframe: 8 hrs Post Nerve Block

Assessed on an 11-point (0-10) numeric analog scale with a higher score denoting a worse outcome

Outcome measures

Outcome measures
Measure
Ilioinguinal / Iliohypogastric Block
n=29 Participants
Patient's randomized to receive an Ilioinguinal / Iliohypogastric nerve block (IINB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a supine position in a manner consistent with the technique described by Willschke, but modified to utilize an in-plane technique rather than an out-of-plane technique for needle to ultrasound probe orientation. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Ilioinguinal / Iliohypogastric Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided ilioinguinal / iliohypogastric block technique.
Quadratus Lumborum Block
n=30 Participants
Patient's randomized to receive a Quadratus Lumborum block (QLB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a lateral position in a manner consistent with the technique described by Børglum. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Quadratus Lumborum Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided quadratus lumborum block technique. Bupivacaine 0.25%: Administered as part of the local anesthetic mixture Epinephrine 1:200k: Administered as part of the local anesthetic mixture Clonidine 1.66mcg/c
Post-operative Verbal Pain Score at Rest
3.6 score on a scale
Standard Deviation 3
3.3 score on a scale
Standard Deviation 2.7

SECONDARY outcome

Timeframe: 24 hrs Post Nerve Block

Population: One patient was lost to follow up in the Ilioinguinal Block arm after the 8 hour post block time point which is why the patient flow number for that arm differs from the 24 hour time frame.

Assessed on an 11 point (0-10) numeric analog scale with a higher score denoting a worse outcome

Outcome measures

Outcome measures
Measure
Ilioinguinal / Iliohypogastric Block
n=28 Participants
Patient's randomized to receive an Ilioinguinal / Iliohypogastric nerve block (IINB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a supine position in a manner consistent with the technique described by Willschke, but modified to utilize an in-plane technique rather than an out-of-plane technique for needle to ultrasound probe orientation. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Ilioinguinal / Iliohypogastric Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided ilioinguinal / iliohypogastric block technique.
Quadratus Lumborum Block
n=30 Participants
Patient's randomized to receive a Quadratus Lumborum block (QLB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a lateral position in a manner consistent with the technique described by Børglum. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Quadratus Lumborum Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided quadratus lumborum block technique. Bupivacaine 0.25%: Administered as part of the local anesthetic mixture Epinephrine 1:200k: Administered as part of the local anesthetic mixture Clonidine 1.66mcg/c
Post-operative Verbal Pain Score at Rest
3 score on a scale
Standard Deviation 2.4
2.7 score on a scale
Standard Deviation 2.2

SECONDARY outcome

Timeframe: 24hrs Post Nerve Block

Assessed on an 11 point (0-10) numeric analog scale with a higher score denoting a worse outcome

Outcome measures

Outcome measures
Measure
Ilioinguinal / Iliohypogastric Block
n=28 Participants
Patient's randomized to receive an Ilioinguinal / Iliohypogastric nerve block (IINB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a supine position in a manner consistent with the technique described by Willschke, but modified to utilize an in-plane technique rather than an out-of-plane technique for needle to ultrasound probe orientation. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Ilioinguinal / Iliohypogastric Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided ilioinguinal / iliohypogastric block technique.
Quadratus Lumborum Block
n=30 Participants
Patient's randomized to receive a Quadratus Lumborum block (QLB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a lateral position in a manner consistent with the technique described by Børglum. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Quadratus Lumborum Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided quadratus lumborum block technique. Bupivacaine 0.25%: Administered as part of the local anesthetic mixture Epinephrine 1:200k: Administered as part of the local anesthetic mixture Clonidine 1.66mcg/c
Post-operative Verbal Pain Score With Activity
4.9 score on a scale
Standard Deviation 2.5
5.3 score on a scale
Standard Deviation 2.4

SECONDARY outcome

Timeframe: 24hrs Post Nerve Block

Population: One patient was lost to follow up in the Ilioinguinal Block arm after the 8 hour post block time point which is why the patient flow number for that arm differs from the 24 hour time frame.

When does the patient require their first post operative analgesic dose?

Outcome measures

Outcome measures
Measure
Ilioinguinal / Iliohypogastric Block
n=28 Participants
Patient's randomized to receive an Ilioinguinal / Iliohypogastric nerve block (IINB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a supine position in a manner consistent with the technique described by Willschke, but modified to utilize an in-plane technique rather than an out-of-plane technique for needle to ultrasound probe orientation. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Ilioinguinal / Iliohypogastric Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided ilioinguinal / iliohypogastric block technique.
Quadratus Lumborum Block
n=30 Participants
Patient's randomized to receive a Quadratus Lumborum block (QLB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a lateral position in a manner consistent with the technique described by Børglum. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Quadratus Lumborum Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided quadratus lumborum block technique. Bupivacaine 0.25%: Administered as part of the local anesthetic mixture Epinephrine 1:200k: Administered as part of the local anesthetic mixture Clonidine 1.66mcg/c
Time to First Oral Analgesic
141 minutes
Interval 71.0 to 742.0
91 minutes
Interval 58.0 to 390.0

SECONDARY outcome

Timeframe: 24hrs Post Nerve Block

Population: Data not collected

When does the patient first note post operative pain?

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 24 hrs Post Nerve Block

Population: One patient was lost to follow up in the Ilioinguinal Block arm after the 8 hour post block time point which is why the patient flow number for that arm differs from the 24 hour time frame.

Total opioids consumed during the first 24hrs post operatively. Measured as 24hr Oxycodone Equivalent

Outcome measures

Outcome measures
Measure
Ilioinguinal / Iliohypogastric Block
n=28 Participants
Patient's randomized to receive an Ilioinguinal / Iliohypogastric nerve block (IINB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a supine position in a manner consistent with the technique described by Willschke, but modified to utilize an in-plane technique rather than an out-of-plane technique for needle to ultrasound probe orientation. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Ilioinguinal / Iliohypogastric Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided ilioinguinal / iliohypogastric block technique.
Quadratus Lumborum Block
n=30 Participants
Patient's randomized to receive a Quadratus Lumborum block (QLB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a lateral position in a manner consistent with the technique described by Børglum. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Quadratus Lumborum Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided quadratus lumborum block technique. Bupivacaine 0.25%: Administered as part of the local anesthetic mixture Epinephrine 1:200k: Administered as part of the local anesthetic mixture Clonidine 1.66mcg/c
Total Opioid Consumption
19.7 milligrams
Standard Deviation 19
25.2 milligrams
Standard Deviation 22

SECONDARY outcome

Timeframe: 8 hrs Post Nerve Block

Outcome measures

Outcome measures
Measure
Ilioinguinal / Iliohypogastric Block
n=29 Participants
Patient's randomized to receive an Ilioinguinal / Iliohypogastric nerve block (IINB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a supine position in a manner consistent with the technique described by Willschke, but modified to utilize an in-plane technique rather than an out-of-plane technique for needle to ultrasound probe orientation. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Ilioinguinal / Iliohypogastric Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided ilioinguinal / iliohypogastric block technique.
Quadratus Lumborum Block
n=30 Participants
Patient's randomized to receive a Quadratus Lumborum block (QLB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a lateral position in a manner consistent with the technique described by Børglum. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Quadratus Lumborum Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided quadratus lumborum block technique. Bupivacaine 0.25%: Administered as part of the local anesthetic mixture Epinephrine 1:200k: Administered as part of the local anesthetic mixture Clonidine 1.66mcg/c
Number of Participants With Presence of Opioid Related Side Effects--Nausea
9 Participants
5 Participants

SECONDARY outcome

Timeframe: 24 hrs Post Nerve Block

Population: One patient was lost to follow up in the Ilioinguinal Block arm after the 8 hour post block time point which is why the patient flow number for that arm differs from the 24 hour time frame.

Outcome measures

Outcome measures
Measure
Ilioinguinal / Iliohypogastric Block
n=28 Participants
Patient's randomized to receive an Ilioinguinal / Iliohypogastric nerve block (IINB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a supine position in a manner consistent with the technique described by Willschke, but modified to utilize an in-plane technique rather than an out-of-plane technique for needle to ultrasound probe orientation. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Ilioinguinal / Iliohypogastric Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided ilioinguinal / iliohypogastric block technique.
Quadratus Lumborum Block
n=30 Participants
Patient's randomized to receive a Quadratus Lumborum block (QLB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a lateral position in a manner consistent with the technique described by Børglum. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Quadratus Lumborum Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided quadratus lumborum block technique. Bupivacaine 0.25%: Administered as part of the local anesthetic mixture Epinephrine 1:200k: Administered as part of the local anesthetic mixture Clonidine 1.66mcg/c
Number of Participants With Presence of Opioid Related Side Effects--Itching
2 Participants
3 Participants

SECONDARY outcome

Timeframe: 8 hrs Post Nerve Block

Outcome measures

Outcome measures
Measure
Ilioinguinal / Iliohypogastric Block
n=29 Participants
Patient's randomized to receive an Ilioinguinal / Iliohypogastric nerve block (IINB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a supine position in a manner consistent with the technique described by Willschke, but modified to utilize an in-plane technique rather than an out-of-plane technique for needle to ultrasound probe orientation. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Ilioinguinal / Iliohypogastric Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided ilioinguinal / iliohypogastric block technique.
Quadratus Lumborum Block
n=30 Participants
Patient's randomized to receive a Quadratus Lumborum block (QLB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a lateral position in a manner consistent with the technique described by Børglum. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Quadratus Lumborum Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided quadratus lumborum block technique. Bupivacaine 0.25%: Administered as part of the local anesthetic mixture Epinephrine 1:200k: Administered as part of the local anesthetic mixture Clonidine 1.66mcg/c
Number of Participants With Presence of Opioid Related Side Effects--Itching
0 Participants
4 Participants

SECONDARY outcome

Timeframe: 8 hrs Post Nerve Block

Outcome measures

Outcome measures
Measure
Ilioinguinal / Iliohypogastric Block
n=29 Participants
Patient's randomized to receive an Ilioinguinal / Iliohypogastric nerve block (IINB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a supine position in a manner consistent with the technique described by Willschke, but modified to utilize an in-plane technique rather than an out-of-plane technique for needle to ultrasound probe orientation. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Ilioinguinal / Iliohypogastric Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided ilioinguinal / iliohypogastric block technique.
Quadratus Lumborum Block
n=30 Participants
Patient's randomized to receive a Quadratus Lumborum block (QLB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a lateral position in a manner consistent with the technique described by Børglum. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Quadratus Lumborum Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided quadratus lumborum block technique. Bupivacaine 0.25%: Administered as part of the local anesthetic mixture Epinephrine 1:200k: Administered as part of the local anesthetic mixture Clonidine 1.66mcg/c
Number of Participants With Presence of Opioid Related Side Effects--Vomiting
3 Participants
3 Participants

SECONDARY outcome

Timeframe: 24 hrs Post Nerve Block

Population: One patient was lost to follow up in the Ilioinguinal Block arm after the 8 hour post block time point which is why the patient flow number for that arm differs from the 24 hour time frame.

Outcome measures

Outcome measures
Measure
Ilioinguinal / Iliohypogastric Block
n=28 Participants
Patient's randomized to receive an Ilioinguinal / Iliohypogastric nerve block (IINB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a supine position in a manner consistent with the technique described by Willschke, but modified to utilize an in-plane technique rather than an out-of-plane technique for needle to ultrasound probe orientation. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Ilioinguinal / Iliohypogastric Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided ilioinguinal / iliohypogastric block technique.
Quadratus Lumborum Block
n=30 Participants
Patient's randomized to receive a Quadratus Lumborum block (QLB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a lateral position in a manner consistent with the technique described by Børglum. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Quadratus Lumborum Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided quadratus lumborum block technique. Bupivacaine 0.25%: Administered as part of the local anesthetic mixture Epinephrine 1:200k: Administered as part of the local anesthetic mixture Clonidine 1.66mcg/c
Number of Participants With Presence of Opioid Related Side Effects--Nausea
6 Participants
3 Participants

SECONDARY outcome

Timeframe: 24 hrs Post Nerve Block

Population: One patient was lost to follow up in the Ilioinguinal Block arm after the 8 hour post block time point which is why the patient flow number for that arm differs from the 24 hour time frame.

Outcome measures

Outcome measures
Measure
Ilioinguinal / Iliohypogastric Block
n=28 Participants
Patient's randomized to receive an Ilioinguinal / Iliohypogastric nerve block (IINB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a supine position in a manner consistent with the technique described by Willschke, but modified to utilize an in-plane technique rather than an out-of-plane technique for needle to ultrasound probe orientation. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Ilioinguinal / Iliohypogastric Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided ilioinguinal / iliohypogastric block technique.
Quadratus Lumborum Block
n=30 Participants
Patient's randomized to receive a Quadratus Lumborum block (QLB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a lateral position in a manner consistent with the technique described by Børglum. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Quadratus Lumborum Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided quadratus lumborum block technique. Bupivacaine 0.25%: Administered as part of the local anesthetic mixture Epinephrine 1:200k: Administered as part of the local anesthetic mixture Clonidine 1.66mcg/c
Number of Participants With Presence of Opioid Related Side Effects--Vomiting
3 Participants
2 Participants

Adverse Events

Ilioinguinal / Iliohypogastric Block

Serious events: 0 serious events
Other events: 12 other events
Deaths: 0 deaths

Quadratus Lumborum Block

Serious events: 0 serious events
Other events: 12 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Ilioinguinal / Iliohypogastric Block
n=29 participants at risk
Patient's randomized to receive an Ilioinguinal / Iliohypogastric nerve block (IINB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a supine position in a manner consistent with the technique described by Willschke, but modified to utilize an in-plane technique rather than an out-of-plane technique for needle to ultrasound probe orientation. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Ilioinguinal / Iliohypogastric Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided ilioinguinal / iliohypogastric block technique.
Quadratus Lumborum Block
n=30 participants at risk
Patient's randomized to receive a Quadratus Lumborum block (QLB) for post operative analgesia following inguinal herniorrhaphy will have said block performed in a lateral position in a manner consistent with the technique described by Børglum. Either a Sonosite linear HFL38x/13-6 MHz or Sonosite curvilinear C60x/5-2 MHz probe will be utilized to visualize the pertinent ultrasound anatomy. A Pajunk 21g x 100mm Sono Plex Stim Cannula will be utilized to appropriately deposit a single local anesthetic aliquot consisting of 25cc's of bupivacaine 0.25% with epinephrine 5mcg/cc and clonidine 1.66mcg/cc. Quadratus Lumborum Block: Patients randomized to this arm will receive 25cc's of Bupivacaine 0.25% + Epinephrine 1:200k + Clonidine 1.66mcg/cc administered via an ultrasound guided quadratus lumborum block technique. Bupivacaine 0.25%: Administered as part of the local anesthetic mixture Epinephrine 1:200k: Administered as part of the local anesthetic mixture Clonidine 1.66mcg/c
Gastrointestinal disorders
Nausea
41.4%
12/29 • 8 - 24 hours
26.7%
8/30 • 8 - 24 hours
Gastrointestinal disorders
Vomiting
20.7%
6/29 • 8 - 24 hours
16.7%
5/30 • 8 - 24 hours
Skin and subcutaneous tissue disorders
Itching
6.9%
2/29 • 8 - 24 hours
23.3%
7/30 • 8 - 24 hours

Additional Information

Christopher Edwards

Wake Forest University Health Sciences

Phone: 336-716-4498

Results disclosure agreements

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