egional anesthesia is generally preferred over general anesthesia in the US. The merits of regional anesthesia are many. Regional anesthesia provides optimal surgical conditions and analgesia extending into the postoperative period. The motor block achieved by spinal anesthesia is unsurpassed by any other technique. The modest reduction in arterial blood pressure contributes to reduced surgical blood loss. Regional analgesia may also result in reduced postoperative nausea and vomiting, less respiratory and cardiac depression, and decreased risks of thrombo-embolisms27-29. Regional anesthesia has the advantage of blunting stress response in surgery and decreasing morbidity and mortality in high risk surgical patients30 -31. Regional analgesia
