RISS Versus ESP Block in Laparoscopic Cholecystectomy

Recruiting now · Not applicable

Conditions studied: Postoperative Pain

In brief

This prospective randomized controlled trial aims to compare the analgesic efficacy and effects on diaphragmatic function of bilateral erector spinae plane (ESP) block and bilateral rhomboid intercostal-subserratus plane (RISS) block in patients undergoing elective laparoscopic cholecystectomy. Postoperative pain scores, opioid consumption, diaphragmatic excursion, pulmonary function, and recovery outcomes will be evaluated.

Key facts

Study ID

NCT07655323

Run by

Ferit Yetik

People needed

80

Starts

2026-06-18

Expected to finish

2026-12-01

Last updated by the study team

2026-06-22

Who can join

Age: 18 and older, up to 75. Sex: any. Healthy volunteers: not accepted.

You may not qualify if…

• Coagulation disorders or anticoagulant therapy
• Known allergy to local anesthetics
• Infection at the block application site
• Pregnancy or lactation
• Chronic opioid use
• Cognitive impairment
• Refusal to participate in the study
• Technical inability to perform the block
• Failed block

Where it is running

• Bursa City Hospital — Bursa, Nilüfer, Turkey (Türkiye) (enrolling)

Full record on ClinicalTrials.gov

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