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Changes in blood volume expansion during and after intravenous infusion of 500 ml of Hextend over 20 min after hemorrhage of 400 ml in wakeful (○) and desflurane-anesthetized (□) volunteers. Data are means and standard deviations. BVt: blood volume at any time during fluid infusion; BV0: Baseline blood volume before fluid infusion. *P < 0.05 compared with the wakeful group.
