Comparison of Postoperative Analgesic Effect of Tramadol With Lidocaine When Used as Subcutaneous Local Anesthetic

摘要

We conducted a double blind, controlled trial comparing postoperative analgesic effect of tramadol with lidocaine when used as subcutaneous local anesthetic. Seventy ASA physical status 1 or 2 patients aged 20-50 years, who were scheduled for elective sur