Pre-emptive Quadratus Lumborum Block for Laparoscopic Bariatric Surgery

Pre-emptive Quadratus Lumborum Block for Laparoscopic Bariatric Surgery.A Prospective Randomizes Controlled Study.

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT04294329

Enrollment

Registered

2020-03-04

Start date

2017-08-15

Completion date

2020-03-31

Last updated

2020-08-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pain, Postoperative

Keywords

Quadratus lumborum block, laparoscopic bariatric surgery

Brief summary

The purpose of this study was to determine the effectiveness of pre-emptive Quadratus lumborum block on intra, postoperative pain assessment and opioid requirements in laparoscopic bariatric procedures.

Interventions

PROCEDUREUS-guided Quadratus lumborum block.

Performance of quadratus lumborum block using ultrasound machine to relieve pain after bariatric surgery

DRUGBupivacaine

Bupivacaine

DRUGSaline

normal saline

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

PREVENTION

Masking

TRIPLE (Subject, Caregiver, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

18 Years to 50 Years

Healthy volunteers

Yes

Inclusion criteria

Patients included in this study are * Both genders * Age between 18-50 years * Those undergoing laparoscopic bariatric surgery (as laparoscopic sleeve gastrectomy or gastric bypass). * BMI ≥ 35 Kg/m2 with comorbidity or ≥ 40 Kg/m2 without comorbidity.

Exclusion criteria

Patients excluded from this study were * those with obstructive sleep apnoea and/or Pickwickian syndrome. * if the laparoscopy procedure was converted to laparotomy. * patients suffering from known coagulation defects. * known hypersensitivity to bupivacaine, or those with contraindication to the use of NSAIDS. * Presence of sepsis at the site of injection.

Design outcomes

Primary

Measure	Time frame	Description
Postoperative pain severity	24 hours postoperatively	Assessment of analgesia intraoperatively and for the first 24 hours postoperatively using the numerical ratingscale (NRS)score .The scale ranges from 0 to 10 where 0 indicates no pain and 10 indicates the worst pain imaginable.

Secondary

Measure	Time frame	Description
Intraoperative hemodynamics	24 hours postoperatively	Mean arterial pressure (MAP) in mmHg.
Postoperative analgesic needs	24 hours postoperatively.	Time to first analgesic requirement in hours
Total dose of opioids	24 hours postoperatively.	Total dose of opioids received in mg

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026