Study Stopped
The study was stopped early based on the anecdotal evidence from a surgeon who felt one group was experiencing more side effects than the other. Exposing pediatric patients who would be assigned to the inferior arm was difficult to justify ethically.
ITM vs QL for Pediatric Open Lower Abdominal Procedures
Intrathecal Morphine Versus Bilateral Quadratus Lumborum Blocks for Perioperative Analgesia in Pediatric Patients Undergoing Open Lower Abdominal Procedures: A Prospective Randomized Trial
1 other identifier
interventional
14
1 country
1
Brief Summary
Patients between the ages of 12 months and 11 years who are undergoing an open lower abdominal procedure will be randomized to receive intrathecal morphine, or bilateral quadratus lumborum block. The investigators will compare the effect that intrathecal morphine and quadratus lumborum blocks have on the duration of pain control as demonstrated by charted pain scores and morphine equivalents in the first 48 hours. This study will also assess the side effects of each intervention such as nausea and vomiting, and itching.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_4
Started Aug 2022
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 12, 2022
CompletedStudy Start
First participant enrolled
August 17, 2022
CompletedFirst Posted
Study publicly available on registry
August 18, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 9, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
May 10, 2024
CompletedResults Posted
Study results publicly available
April 15, 2025
CompletedApril 15, 2025
April 1, 2025
1.7 years
August 12, 2022
March 5, 2025
April 11, 2025
Conditions
Outcome Measures
Primary Outcomes (2)
Duration of Analgesia - Pain Score 0-10
The primary endpoint will compare the effect that intrathecal morphine and quadratus lumborum blocks have on the duration of analgesia as demonstrated by charted pain scores in the first 24 hours. Pain scores were collected from the medical record on a scale from 0-10; the higher the score, the worse the outcome/pain. Time points in the 24 hours post op for each patient varied based on nursing care as the data was collected from the medical record.
Up to 24 hours post-op
Duration of Analgesia - MME/kg in First 24 Hours
The primary endpoint will compare the effect that intrathecal morphine and quadratus lumborum blocks have on the duration of analgesia as demonstrated by morphine milligram equivalents (MME)/kg in the first 24 hours. The higher the MME/kg, the worse the pain.
Up to 24 hours post-op
Secondary Outcomes (5)
Number of Participants With Side Effects of Each Intervention
up to 48 hours post-operative
Severity of Side Effects With Each Intervention
0-48 hours post-operatively
Patient/Family Satisfaction
up to 48 hours post-operative
Total Length of PACU Stay - Minutes
time to discharge after surgery, (an expected average length of hospital stay is approximately 2-4 days)
Total Length of Hospital Stay - Length of Stay, Days
time to discharge after surgery, (an expected average length of hospital stay is approximately 2-4 days)
Study Arms (2)
Intrathecal Morphine
ACTIVE COMPARATORIntrathecal Morphine: spinal (neuraxial) dose of preservative free morphine (duramorph), usually about 4-5mcg/kg
quadratus lumborum block
ACTIVE COMPARATORQuadratus Lumborum Block: peripheral nerve block utilizing ropivacaine 0.2%, usually about ½ mL per kg per side (total dose approximately 1mL/kg).
Interventions
One group of subjects will receive intrathecal morphine: spinal (neuraxial) dose of preservative free morphine (Duramorph), usually about 4-5mcg/kg. This is injected into the cerebrospinal fluid under sterile technique by a pediatric anesthesiologist while the subject is already under general anesthesia. This procedure is well-described in the pediatric population and used regularly for postoperative pain relief for a variety of procedures including ureteral reimplantation.
The second group of subjects will have bilateral quadratus lumborum blocks: peripheral nerve block utilizing ropivacaine 0.2%, usually about ½ mL per/ kg per side (total dose approximately 1mL/kg). This is injected in the subject's flank in the fascial plane between the quadratus lumborum muscle and the psoas muscle. Ultrasound guidance is used for needle and structure localization and this procedure is done by a pediatric anesthesiologist while the subject is already under general anesthesia. Quadratus lumborum blocks are regularly used in clinical practice for postoperative pain relief for a variety of abdominal procedures.
Eligibility Criteria
You may qualify if:
- Ages 12 months to 11 years old
- Undergoing an open lower abdominal procedure
You may not qualify if:
- Allergy to morphine or amide local anesthetics
- Localized rash at site of planned regional anesthetic block
- Bleeding diathesis
- Spinal dysmorphism
- Previous spinal surgery with instrumentation of the lumbar spine
- Inability or unwillingness of parent or legal guardian to give informed consent.
- Prior enrollment and randomization in this study
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Medical University of South Carolina
Charleston, South Carolina, 29425, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Natalie Barnett
- Organization
- Medical University of South Carolina
Study Officials
- PRINCIPAL INVESTIGATOR
Natalie Barnett, MD
Medical University of South Carolina
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- PARTICIPANT
- Masking Details
- The patient and their parent/guardians will be blinded.
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
August 12, 2022
First Posted
August 18, 2022
Study Start
August 17, 2022
Primary Completion
May 9, 2024
Study Completion
May 10, 2024
Last Updated
April 15, 2025
Results First Posted
April 15, 2025
Record last verified: 2025-04