This study tested two methods to block nerves in the upper arm during surgery: the usual blind injection versus an ultrasound-guided approach. The goal was to see which better prevents pain from the tourniquet used during the procedure. 140 adults having upper arm surgery took pa…
Phase: NA • Sponsor: Olfa kaabachi, MD • Aim: Symptom relief
Last updated May 22, 2026 13:50 UTC