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用脉冲多普勒测量新生儿及幼婴肺炎心衰10例、肺炎患儿20例及20例正常儿的肺动脉瓣、二、三尖瓣血流参数,以观察心脏收缩及舒张功能改善。结果:1.心衰时肺动脉瓣射血时间缩短(187.850±43.162ms),AT缩短(43.569±11.920ms),AT/DT降低(0.333±0.115)。2.心衰时二尖瓣EAT/EDT明显增大(1.577±0.453)。PEV,PAV,EMV增高,分别为75.185±19.275,67.472±17.802,56.050±15.858。3.心衰时三尖瓣正AT/EDT明显增大(1.712±0.495),PEV,PAV及EMV明显增高分别为75.148±17.255,86.386±0.834,46.590±9.314。4.正常儿与肺炎患儿间各项指标均无显著性差异。作者认为心衰时心脏的收缩及舒张功能均发生明显改变,而以右室的舒张功能变化更为显著,脉冲多普勒对监测心衰时血液动力学改变是一项无创、敏感、定量化的诊断手段。
Pulse wave Doppler measurement of neonatal and infant infantile heart failure in 10 cases, 20 cases of children with pneumonia and 20 cases of normal pulmonary artery valve, tricuspid valve blood flow parameters to observe the systolic and diastolic function improved. Pulmonary arterial ejection time was decreased (187.850 ± 43.162 ms), AT shortened (43.569 ± 11.920 ms), and AT / DT decreased (0.333 ± 0.115). 2. Heart failure mitral EAT / EDT significantly increased (1.577 ± 0.453). PEV, PAV and EMV increased significantly (75.185 ± 19.275,67.472 ± 17.802,56.050 ± 15.858.3 respectively) .The positive AT / EDT of tricuspid valve increased significantly (1.712 ± 0.495) and PEV, PAV and EMV increased significantly Were 75.148 ± 17.255,86.386 ± 0.834,46.590 ± 9.314.4. There was no significant difference between the indexes of normal children and children with pneumonia. Authors believe that heart failure, heart systolic and diastolic function were significantly changed, while the right ventricular diastolic function changes more pronounced, pulse Doppler monitoring of heart failure hemodynamic changes is a noninvasive, sensitive, quantitative The diagnostic tool.