Fig. 1. Change in visual analog scale (VAS) score by afternoon visual analog scale score. X = patients who requested a change in their patient-controlled analgesia pump setting; open circle = patients with no clinical change.
Fig. 1. Change in visual analog scale (VAS) score by afternoon visual analog scale score. X = patients who requested a change in their patient-controlled analgesia pump setting; open circle = patients with no clinical change.
