Sedation efficacy of different dose of remimazolam with sufentanil for nerve block in young and elderly patients: a randomized, controlled study.

Purpose: Anxiety and pain commonly occur during nerve block, we aimed to investigate the sedation efficacy of different doses of remimazolam with sufentanil in young and elderly patients.

Methods: In this randomized trial, patients aged 18-85 years who underwent nerve block was enrolled. All patients received sufentanil 0.