EUROPEAN JOURNAL OF ANAESTHESIOLOGY, cilt.20, sa.5, ss.416-421, 2003 (SCI-Expanded)
Background and objective: This double-blind randomized study tested whether the addition of magnesium or ketamine to morphine for intravenous patient-controlled analgesia resulted in improved analgesic efficacy and lower pain scores compared with morphine patient-controlled analgesia alone after major abdominal surgery.