Safe and effective IV regional anesthesia for use in the emergency department.

The mini-dose Bier block, a technique of intravenous (IV) regional anesthesia that uses low-dose lidocaine and provides safe and effective anesthesia for outpatient closed reductions of upper extremity fractures and dislocations, is presented. This procedure was evaluated in two hospital emergency departments in 105 patients (ages 2 to 86). Ninety-five percent achieved adequate anesthesia (minimal or no pain on closed reduction). No significant complications were noted. Full neurologic function returned in ten minutes in all cases. Both patient and physician satisfaction with the procedure were high. The mini-dose Bier block creates the potential for significant cost savings in cases previously treated in the operating room by providing a safe, effective technique of IV regional anesthesia for outpatient use.