RecruitingNot ApplicableNCT07366138

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

Sponsor

Benha University

Enrollment

70 participants

Start Date

Nov 1, 2025

Study Type

INTERVENTIONAL

Conditions

Ultrasound Perioperative Analgesia Laparoscopic Sleeve Gastrectomy External Oblique Intercostal Plane Block Subcostal Transversus Abdominis Plane Block

Summary

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.

Eligibility

Min Age: 18 YearsMax Age: 65 Years

Inclusion Criteria6

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 Criteria7

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.

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Interventions

OTHERExternal 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.

OTHERSubcostal 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.