Method: a total of 650 cases were selected.Among them, 600 cases underwent right axillary venipuncture intubation and 50 cases underwent left axillary venipuncture intubation.

• 方法:选取650例手术病人,其中600例行右侧腋静脉穿刺置管,50例行左侧腋静脉穿刺置管,观察置管的成功率及并发症的发生情况。