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EOIB for Pain After Laparoscopic Cholecystectomy
Sponsor: Shiyou Wei
Summary
This prospective, randomized, controlled, assessor-blinded trial will evaluate whether bilateral ultrasound-guided external oblique intercostal block (EOIB) reduces postoperative opioid consumption and improves pain control after laparoscopic cholecystectomy, compared with no block.
Official title: External Oblique Intercostal Block for Postoperative Pain After Laparoscopic Cholecystectomy: A Randomized Controlled Trial
Key Details
Gender
All
Age Range
18 Years - 85 Years
Study Type
INTERVENTIONAL
Enrollment
56
Start Date
2026-01-15
Completion Date
2026-04-20
Last Updated
2026-01-12
Healthy Volunteers
No
Interventions
External oblique intercostal block (EOIB)
Bilateral ultrasound-guided external oblique intercostal block performed under sterile conditions after induction of general anesthesia and before surgical incision. Using an in-plane technique, the block is performed at the level of the 6th rib in the 6th-7th intercostal space. A local anesthetic mixture is injected with a total volume of 15 mL per side (prepared by mixing 0.75% ropivacaine with normal saline).
Standard care without regional block
Participants do not receive any regional anesthesia/nerve block (including external oblique intercostal block). All participants receive standard general anesthesia and the same standardized postoperative multimodal analgesia regimen as per protocol, including intravenous patient-controlled analgesia (PCA) with butorphanol.
Locations (1)
Tianmen First People's Hospital
Tianmen, Hubei, China