Objectioned: to evaluate the significance of blood gas and electrolyte analysis in monitoring of cases with pert-operation of cardiopulmonary bypass (CPB).
目的：为正确评价血气指标对体外循环(CPB)围术期监测的意义。
2
Objective: to evaluate the application of intraoperative transesophageal echocardiography in monitoring deep aortic cannulation in open heart surgery under cardiopulmonary bypass.
目的：探讨术中经食管超声心动图对心脏病手术中体外循环主动脉深插管的监测价值。
3
Objective: to explore the significance of ultrasonography monitoring after cardiopulmonary bypass.