Personalizing Preprocedural Sedation for Regional Anesthesia

Prior to the start of the nerve block, patients in Arm 1 will receive titrated pharmacological sedation with IV midazolam with a goal of achieving moderate sedation. If pain is felt despite subcutaneous lidocaine, IV fentanyl may be administered with a goal of achieving moderate sedation with analgesia.

Patients in the nonpharmacologic group will receive intraprocedural education and reassurance without pharmacologic sedation. They will have the option to receive more pharmacologic sedation at any point during the nerve block (cross-over to titrated sedation group).