Menu
Recruiting NCT07366138

Ultrasound-Guided External Oblique Intercostal Plane Block Versus Subcostal Transversus Abdominis Plane Block For Perioperative Analgesia in Laparoscopic Sleeve Gastrectomy

No phase Interventional Ultrasound External Oblique Intercostal Plane Block Subcostal Transversus Abdominis Plane Block Perioperative Analgesia

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied
The protocol lists: External oblique intercostal plane block, Subcostal transversus abdominis plane block.
Who it may be relevant to
Registry conditions: Ultrasound, External Oblique Intercostal Plane Block, Subcostal Transversus Abdominis Plane Block, Perioperative Analgesia. Basic parameters: 18 years — 65 years · All.
What needs checking
Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place
Egypt
Next step
Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

Unsure about the terms? Read our patient guide →

Overview

This study aims to compare the analgesic efficacy, duration of analgesia, and overall opioid consumption between the external oblique intercostal plane (EOIP) block and subcostal transversus abdominis plane (TAP) block in patients undergoing laparoscopic sleeve gastrectomy.

Detailed description

Postoperative pain management is a critical aspect of enhanced recovery after surgery (ERAS) protocols, particularly in laparoscopic bariatric procedures such as sleeve gastrectomy.

Among the ultrasound-guided abdominal wall blocks, the transversus abdominis plane (TAP) block and its subcostal variant have demonstrated efficacy for upper abdominal surgeries. The subcostal TAP block provides analgesia for the T6-T9 dermatomes, covering incisions in upper abdominal procedures like laparoscopic cholecystectomy and bariatric surgery.

The external oblique intercostal plane (EOIP) block is a relatively new fascial plane block that targets the intercostal nerves lying between the external oblique and intercostal muscles.

Interventions

  • Other External oblique intercostal plane block
    Patients will receive an ultrasound-guided bilateral external oblique intercostal plane (EOIP) block using 20 mL of 0.25% bupivacaine in each side after induction of anesthesia and prior to surgical incision.
  • Other Subcostal transversus abdominis plane block
    Patients will receive a bilateral subcostal transversus abdominis plane (TAP) block using 20 mL of 0.25% bupivacaine in each side, under ultrasound guidance and identical conditions.

Primary outcome measures

  • Total morphine consumption [Time frame: 24 hours postoperatively]
Secondary outcome measures (7)
  • Time to first rescue analgesia [Time frame: 24 hours postoperatively]
  • Degree of pain [Time frame: 24 hours postoperatively]
  • Heart rate [Time frame: Till the end of surgery (Up to two hours)]
  • Mean arterial blood pressure [Time frame: Till the end of surgery (Up to two hours)]
  • Incidence of postoperative nausea and vomiting [Time frame: 24 hours postoperatively]
  • Block-related complications [Time frame: 24 hours postoperatively]
  • Degree of patient satisfaction [Time frame: 24 hours postoperatively]

Eligibility criteria

Inclusion criteria

  • Age from 18 to 65 years.
  • Both genders.
  • American Society of Anesthesiologists (ASA) class I or II
  • Body mass index (BMI) between 30-50 kg/m².
  • Scheduled for elective laparoscopic sleeve gastrectomy under general anesthesia.
  • Written informed consent from patients or surrogate decision makers.

Exclusion criteria

  • Patient refusal.
  • Allergy to local anesthetics.
  • Coagulation disorders or anticoagulant therapy.
  • Local infection or scar at the injection site.
  • Severe hepatic or renal dysfunction.
  • Chronic opioid use or psychiatric illness interfering with pain assessment.
  • Conversion to open surgery or intraoperative complications requiring re-exploration.

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: No

Study design

Allocation
Randomized
Model
Parallel assignment
Masking
Double blind
Primary purpose
Treatment

Study locations

Egypt · 1 center
  • Benha University — Banhā

Identifiers

NCT: NCT07366138 · MS.28.12.2025

Primary sources (government registries)

View this study on ClinicalTrials.gov ↗