心导纳微分图测定室缺心缩间期及其临床意义

• 作 者: 周启昌 谢振武 毛定安 李茗香 林萍
• 机 构: 湖南医科大学附属第二医院,湖南医科大学附属第二医院,湖南医科大学附属第二医院,湖南医科大学附属第二医院,湖南医科大学附属第二医院
• 出 处: 湖南医学
• 发表日期: 1992年06期
• 关键词: 心间隔缺损 导纳 间期 心动描记术 阻抗 微分 心脏导管插入术 肺动脉高压 导管插入术 肺动脉收缩压

实验根据肺动脉收缩压水平分组,用心导纳微分图测定80例小儿室间隔缺损心缩间期。肺动脉压正常组与对照组比较各参数差异无显著性(p>0.05)、肺高压各组PEPI延长,LVETI缩短,PEP/LVET I增大(p<0.001)。如果用PEP/LVET I>0.24,>0.28,>0.31分别估测轻、中、重度以上肺动脉高压,其敏感性分别为91％,87％,82％,特异性分别为93％,96％,92％,表明PEP/LVET I能半定量估测室缺肺动脉高压。

According to the level of pulmonary systolic pressure in the experiment, the cardiac admittance differential diagram was used to measure the systolic phase in 80 cases of ventricular septal defect. There was no significant difference between the normal pulmonary artery pressure group and the control group (P> 0.05). The PEPI, LVETI and PEP / LVET I of the pulmonary hypertension group were prolonged (p <0.001). If PEP / LVET I> 0.24,> 0.28,> 0.31, respectively, the sensitivity of mild, moderate and severe pulmonary hypertension were 91%, 87%, 82%, respectively, the specificity was 93%, 96% 92%, indicating that PEP / LVET I can be semi-quantitative assessment of ventricular pulmonary hypertension.