New nerve block could cut opioid use after gallbladder removal
Symptom relief
Recruiting now
This study tests whether a specific nerve block, called an external oblique intercostal block, can reduce pain and the need for opioid painkillers after laparoscopic gallbladder removal. Fifty-six adults scheduled for this surgery will be randomly assigned to receive either the n…
Phase: NA • Sponsor: Shiyou Wei • Aim: Symptom relief
Last updated Jun 27, 2026 13:04 UTC