Study on the Effect of Capacity Shock Intervention Under Goal-directed Hemodynamic Management on P-V Loop

Patients received 2ml/kg of succinylateol gelatin within 10 min for fluid shock therapy after grouping, taking SVV as the management target. If SVV\< 13% after shock therapy, the shock therapy was stopped and the infusion was maintained with 4ml/kg/h of crystal solution. If SVV ≥ 13% and ΔSV \<10%, the individual would be excluded from the experiment. If SVV ≥ 13% but ΔSV≥10%, 2ml/kg of succinylateol gelatin was given again within 10 min for liquid shock therapy until SVV\<13%, and 4ml/kg/h of crystal solution was maintained after reaching the target. If SVV≥ 13% after two shock treatments, they were excluded from the experiment. We excluded patients whose intraoperative bleeding ≥400ml and operative time ≥5 hours from the group.

4ml/kg/h of crystal solution was maintained. We excluded patients whose intraoperative bleeding ≥400ml and operative time ≥5 hours from the group.