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CompletedNCT03942237Updated Jan 2, 2020

Transmuscular Quadratus Lumborum Block for Postoperative Pain After Laparoscopic Adrenalectomy

An interventional study of single-injection QLB(quadratus lumborum block) and Placebo Control in Pain Management, Nerve Block and Laparoscopic Adrenalectomy, sponsored by Peking Union Medical College Hospital. Completed at 1 site in China. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2020-01-02.

Sponsored by Peking Union Medical College Hospital · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
72
Allocation
Randomized
Ages
18 Years to 70 Years
Sex
All
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Study summary

This prospective, randomized control study aims to compare the analgesic effect, satisfaction with anesthesia and analgesia between single-injection QLB (quadratus lumborum block)+general anesthesia (GA) and general anesthesia (GA) alone in patients undergoing laparoscopic adrenalectomy.

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Conditions studied

  • Pain Management
  • Nerve Block
  • Laparoscopic Adrenalectomy

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Keywords

  • transmuscular quadratus lumborum block
  • adrenalectomy
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In context

Pain, Postoperative

5,095 studies on the registry are indexed under Pain, Postoperative; 1,140 are open to participants now.

This study's enrollment of 72 is close to the median of 75 across 4,346 interventional studies indexed under Pain, Postoperative.

Browse Pain, Postoperative studies →

Lead sponsor

Peking Union Medical College Hospital is the lead sponsor of 1,115 studies on the registry; 463 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Age 18-70 yrs
  • American Society of Anesthesiologists physical statusⅠ-Ⅲ
  • Undergo laparoscopic adrenalectomy
  • Informed consent

Exclusion criteria

Exclusion Criteria:

  • a known allergy to the medications being used for anesthesia
  • coagulopathy or on anticoagulants
  • chronic opioid therapy or history of substance abuse
  • participating in another RCT
  • inability to properly describe postoperative pain to investigators (e.g., language barrier, neuropsychiatric disorder).
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Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
72 participants (actual)

Study arms

  • Experimental
    single-injection QLB (quadratus lumborum block)

    Single-injection of QLB with local anesthetic is given preoperatively

    Procedure: single-injection QLB(quadratus lumborum block)

  • Placebo comparator
    Placebo control

    Single-injection of QLB with NS is given preoperatively

    Procedure: Placebo Control

Interventions

  • Proceduresingle-injection QLB(quadratus lumborum block)

    Inject 0.4ml/kg 0.5% ropivacaine between quadratus lumborum and psoas major muscle Device: The curved (C1-5) probe of Ultrasound Scanner Philips CX50 is used for scan Drug: single dose ropivacaine 0.4ml/kg 0.5% ropivacaine is given immediately after the correct position of needle tip is verified.

  • ProcedurePlacebo Control

    Inject 0.4ml/kg saline between quadratus lumborum and psoas major muscle Device: The curved (C1-5) probe of Ultrasound Scanner Philips CX50 is used for scan Drug: single dose 0.4ml/kg 0.9% NS is given immediately after the correct position of the needle tip is verified

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What researchers measure

Primary outcomes

  1. the NRS pain scores on activity 12-hours after surgery

    The NRS (a number scale from 0 to 10) is a commonly used pain intensity rating tool

    Time frame: 12-hours after surgery

Secondary outcomes

  1. the pain scores at rest determined by the numeric rating scale (NRS, 0-10)

    The NRS (a number scale from 0 to 10) is a commonly used pain intensity rating tool

    Time frame: At 2,4, 8, 12, 24 ,48,72 hours after the surgery

  2. incidence of postoperative nausea and vomiting (PONV)

    Time frame: within 24 postoperative hours

  3. ambulation time

    Time frame: within 5 days after surgery

  4. time of recovery of bowel movement

    defined as the time to first flatus

    Time frame: within 5 days after surgery

  5. postoperative length of hospital stay

    Time frame: up to 2 weeks after surgery

  6. patient's satisfaction of anesthesia and analgesia

    use the Chinese version of Bauer questionnaire to assess the patient satisfaction of anesthesia

    Time frame: 48 hours after surgery

  7. the NRS pain scores on activity after surgery

    The NRS (a number scale from 0 to 10) is a commonly used pain intensity rating tool

    Time frame: At 2,4, 8, 24 ,48,72 hours after the surgery

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Study locations

1 site
  • Peking Union Medical College Hospital
    Beijing, China
08

References and documents

Publications

  • Yuan Q, Lu S, Cui X, Zhang Y, Xie Y, Zhang Y, Yan W, Ji Z, Huang Y. Transmuscular quadratus lumborum block for postoperative pain and recovery after laparoscopic adrenalectomy: a randomized controlled trial. BMC Anesthesiol. 2021 Nov 9;21(1):274. doi: 10.1186/s12871-021-01494-4. PubMed 34753425 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 2, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03942237
Lead sponsor
Peking Union Medical College Hospital
Responsible party
Cui Xulei (Attending physician, Peking Union Medical College Hospital) — Principal investigator
First posted
May 8, 2019
Start date
May 10, 2019
Primary completion
Aug 28, 2019
Completion
Sep 2, 2019
Last update
Jan 2, 2020

Study contacts

Yuguang Huang
study chair · PUMCH

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Dec 2019. You cannot join it, but the record below documents what was studied.

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