The hematocrit(Hct) and hemoglobin(Hb) were measured at the moment(T0),60min(T1),90min(T2) after induction of anesthesia,the microcirculation of auricle and mesentery were also monitored.

• 监测两组麻醉诱导后即刻(T0)、60min(T1)、90min(T2)的红细胞压积(Hct)、血红蛋白含量(Hb)及耳廓微循环血流量和肠系膜微循环微动脉管径、血流速度、血管数、功能血管数的变化。