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.
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.
Study 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
Sex
ALL
Min age
18 Years
Max age
65 Years
Healthy volunteers
No
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.
Primary outcome measure(s)
Total morphine consumption — 24 hours postoperatively Patient-controlled analgesia (PCA) using intravenous morphine (1 mg bolus, 10-minute lockout) will be available for rescue analgesia when visual analogue score ( VAS ) \> 3.
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
We use cookies to analyse site traffic and improve your experience. With your consent, we may also use cookies for advertising. You can change your choice at any time.