Huang Fei, Li Xiao-Ling, Zheng Li-Min, Wang Ming-Ling, Li Yu-Mei, Liu Xiao-Ling
Department of Anesthesiology, Shenzhen Hospital, Peking University, Shenzhen 518035, China.
Zhongguo Ying Yong Sheng Li Xue Za Zhi. 2008 May;24(2):254-6.
To introduce a new device and catheter to be determining cardiac output through cor sinistrum with thermodilution.
Own control was introduced in eight dogs. A pulmonary thermodilution catheter was used through the cor dextrum of the dogs; The new-design catheter was used through artery, and there were two situs to fix:its ahead in left atrium and the ahead near to aortic root. Determine cardiac output (CO) under four circumstances: controlled respiration, apnoea, in controlled hypotension, after controlled hypotension.
There was no significant difference among the parameters (CO and cardiac index) of all circumstances. The CO determined by the pulmonary thermodilution catheter and those by the new-design catheter in two situs were positive correlation, and the gamma were 0.986, 0.989; likewise, the cardiac index (CI) was positive correlation, and the gamma were 0.983, 0.985. The CO and CI by the new-design catheter between two situs were positive, and the gamma were 0.992, 0.988.
The parameters by the new-design catheter and those by the pulmonary thermodilution catheter were concordant. In comparison with the pulmonary thermodilution catheter, the new-design catheter had simple device and could be easily operated.
介绍一种通过左心热稀释法测定心输出量的新装置和导管。
对8只犬采用自身对照。经犬右心使用肺动脉热稀释导管；经动脉使用新设计的导管，有两个固定位置：其前端位于左心房，前端靠近主动脉根部。在四种情况下测定心输出量（CO）：控制呼吸、呼吸暂停、控制性低血压时、控制性低血压后。
所有情况下的参数（CO和心指数）无显著差异。肺动脉热稀释导管测定的CO与新设计导管在两个位置测定的CO呈正相关，γ分别为0.986、0.989；同样，心指数（CI）呈正相关，γ分别为0.983、0.985。新设计导管在两个位置之间的CO和CI呈正相关，γ分别为0.992、0.988。
新设计导管的参数与肺动脉热稀释导管的参数一致。与肺动脉热稀释导管相比，新设计导管装置简单，易于操作。
