The HR, SBP, DBP, PETCO2, PH, SaO2 of group A and group B2 were analyzed at the different time: 5min before insufflation, 10 min after insufflation, 10 min after operation.

• 首先观察A组和B2组气腹前5min、气腹后10min,以及术毕10min时的各项血气指标,然后观察B1、B2和B3组在气腹前5min、气腹后10min,以及术毕10min时的各项血气指标和各组手术时间。