[Sedation in spinal anesthesia. Comparison of remifentanil and propofol].

Objectives: To assess the efficacy and safety of remifentanil for analgesia and sedation during subarachnoidea anesthesia, and to compare remifentanil with propofol.

Method: Ninety ASA I-III patients undergoing orthopedic or traumatologic surgery under subarachnoid anesthesia were enrolled for prospective study and randomly assigned to two treatment groups. The propofol group (n = 45) received a single dose of 0.