Fig. 1From: Pleth variability index and fluid management practices: a multicenter service evaluationRelationship between complication rate, fluid volume administered during surgery. Hypo- (on the left of the U-curve) as well as hypervolemia (on the right) may be associated with postoperative complications. Fluid management associated with optimal cardiac output (green curve) may correlate with the lower rate of perioperative complicationsBack to article page