 Forty-four children, 1-7 years old, undergoing nevus surgery on head were enrolled. Anesthesia was induced with thiopental sodium and rocuronium, and maintained with sevoflurane. Patients were randomly assigned two groups: the control group received IV remifentanil 1 μgkg, and the block group received scalp nerve block with 0.25 ropivacaine 2-3 ml. Time to tracheal extubation, recovery time, hemodynamic change, FLACC score, and Watcha behavior scale for emergence agitation were assessed. 