Interscalene block

Researchers are testing whether a lower concentration of the local anesthetic bupivacaine leads to less rebound pain after shoulder replacement surgery. Rebound pain is the sharp increase in pain that can happen when a nerve block wears off. Adults having anatomic or reverse tota…

This trial compares two ways to numb the shoulder for surgery: the standard interscalene block and a combination of two other nerve blocks. The goal is to see if the combination provides similar pain relief while better preserving diaphragm function, which is important for breath…

This study tests whether giving the anti-inflammatory drug dexketoprofen through a vein can prevent or lessen the severe pain that often occurs when a nerve block wears off after shoulder surgery. About 66 adults having arthroscopic shoulder surgery will be randomly assigned to r…

This study tests two types of nerve blocks to see which one better prevents shoulder pain after lung surgery. 75 adults with lung cancer scheduled for open-lung surgery will receive either an interscalene block, an anterior suprascapular block, or standard epidural pain relief. T…

This study looks at two different numbing methods for shoulder surgery to see how they affect oxygen levels in the brain and the size of a major neck artery. Researchers will compare using one nerve block alone versus combining it with another block. The goal is to understand whi…