Objective To investigate the effects of low tidal volume ventilation on pulmonary and cardiac function before and after mitral valve replacement.
目的以心输出量和肺换气功能为指标研究低潮气量通气对瓣膜置换病人心肺功能的影响。
Conclusions LAF can indicate the echocardiographic changes of the left ventricular abnormal diastolic function in the earlier stage than mitral valve flow indices does.
结论左房灌注分数(LAF)可以比二尖瓣血流频谱更早的体现左室舒张功能的异常改变。
The authors emphasize early operation, firm repair of the VSD and ASD primum and restoration of the function of the mitral valve.
强调本病须尽早手术治疗、术中牢固修补VSD和原发孔ASD及恢复二尖瓣功能的重要性。
Mitral valve flow spectrum commonly reflect the state of left ventricular diastolic function, but several cases with pseudonormalization spectrum can't be clearly assessed.
二尖瓣口血流频谱测值一般反映了左室舒张功能状态，但对几例出现的“伪正常”频谱表现难以明确评价。
Conclusion PVF spectrum and mitral valve flow spectrum can be used to evaluate left ventricular diastolic function of RH children.
结论P VF频谱与二尖瓣血流频谱对评价RH左室舒张功能有参照意义。
Objective To study pre and postoperative left ventricular diastolic function in patients with mitral valve replacement.
目的对二尖瓣替换术前后左心室舒张功能的研究。
Methods 2-de, M-mode and pulsed Doppler were used to measure left ventricular geometric models, left atrial function and mitral valve flow indices.
方法采用M -型和二维超声技术测量高血压患者左室几何构型，测量各组左房功能及二尖瓣血流频谱指标。
Methods 2-de, M-mode and pulsed Doppler were used to measure left ventricular geometric models, left atrial function and mitral valve flow indices.
方法采用M -型和二维超声技术测量高血压患者左室几何构型，测量各组左房功能及二尖瓣血流频谱指标。
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