The cardiac output (CO, L/min) was measured at the same time by a Swan Ganz thermodilution catheter which was inserted into pulmonary artery via the left jugular vein.

• 经颈静脉放置Swan Ganz导管测量心排血量 (CO ,L min)评价血流动力学变化 ,分别于正常状态、治疗前和治疗后 6周检测。