超声法与热稀释法测定心力衰竭患者心排血量的比较

A comparison of cardiac output measured by ultrasonic method and thermodilution in patients with congestive heart failure

报告对12例CHF患者以超声法和热稀释法分别测定CO及EF,并进行比较。结果表明,M超测定的CO与热稀释法所测结果无显著相关;用PD-UCG于主动脉瓣环和主肺动脉处所测得的CO及M超所测EF与热稀释法的结果相关良好。说明在CHF时,M超测定的CO不可靠,但该方法所测定的EF及PD-UCG所测定的CO均能较好地反映CHF患者的心功能情况。

Cardiac output (CO) and left ventricular ejection fraction(EF) were measured by ultrasonic method (M-mode-COm, EF, pulsed Doppler in the aortic valvular an-nulus and the main pulmonary artery-COa and COp) and thermodilution(COt) in 12 patients with congestive heart failure (CHF). The results showed that there was no significant correlation between COm and COt(r=- 0.0187, P>0.05). COa, COp and EF were correlative significantly with COt (r=0.73, 0.72, 0.70, P<0.01, 0.01, 0.05, respectively). These indicated that COm was not reliable, but COa, COp and EF might reflect cardiac funtion very well in pationts with CHF.