Nerve block showdown: one vs two levels for Post-Surgery pain
NCT ID NCT06811493
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether using a nerve block at one or two spots on the back (erector spinae plane block) provides better pain relief after laparoscopic weight-loss surgery. Sixty obese adults were randomly assigned to receive either a one-level or two-level block along with general anesthesia. The main goal was to measure pain scores in the first 24 hours after surgery.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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60 people
The number who actually took part.
- Started
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Jun 2024
- Finished
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Feb 2026
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 60 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * • Patient age ranges 18 to 60 years old * Obese patients ; Body mass index(BMI) ≥ 35 - 50 kg/m2 * American Society of Anesthesiologists (ASA) physical status classes II to III * Patients scheduled for laparoscopic bariatric surgery i.e. sleeve gastrectomy and/or Roux-en-Y gastric bypass (RYGB) surgeries Exclusion Criteria: * • Refusal of regional block * Patients with neurological, psychological disorders or those lacking cooperation * Patients scheduled for concomitant laparoscopic cholecystectomy or paraumbilical hernia repair or those with history of previous bariatric surgery or obstructive sleep apnea * Patients with anatomic abnormalities at site of injection, skin lesions or wounds at site of proposed needle insertion. * Patients with bleeding disorders defined as (INR \>1.4) and/ or (platelet count \<100,000/µL) * Patients with hepatic disease e.g. liver cell failure or hepatic malignancy or hepatic enlargement. * Patients who are allergic to amide local anesthetics.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Cairo University
Cairo, Egypt
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Other studies related to the condition(s) this trial covers.
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