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论文名称:“Recommendations for the Evaluation of Left Ventricular Diastolic Function by Echocardiography: An Update from the American Society of Echocardiography and the European Association of Cardiovascular Imaging”
1 缩写学习
AR:Aortic regurgitation 主动脉返流GLS : Global longitudinal strain 整体纵向应变HCM = Hypertrophic cardiomyopathy 肥厚型心肌病dysfunction 功能障碍LVEDP = Left ventricular end-diastolic pressure 左心房舒张末压LAP = Left Atrial Pressure 左心房压PCWP = Pulmonary capillary wedge pressure 肺毛细血管压力2 doppler parameters
E峰峰值流速(cm/sec):舒张期早期(心电图T波后)频谱波形前缘的峰值速度;A峰峰值流速(cm/sec):舒张期晚期(ECG P波后)频谱波形前缘的峰值速度;二尖瓣A峰持续时间(msec):从A波开始到零基线处A波结束的时间间隔。如果E和A融合(当A波速度开始时E波速度>20厘米/秒),A波持续时间通常会更长,因为心房充盈量增加。E/A:E速度除以A波速度;持续时间(DT):沿左心室充盈斜率的峰值E波到零速度基线的时间间隔;脉冲波TDI e‘ 速度:舒张期早期频谱波形前缘峰速度E/e‘:E速度除以e’速度;
2.2 异常四标准
e’ velocity : septal e’ < 7 cm/sec;lateral e’ < 10 cm/sec; average E/e’ ratio > 14LA maximum volumn index > 34 m l / m 2 ml/m^2 ml/m2peak TR velocity > 2.8 m/sec 最大三尖瓣流速舒张末期出现的多普勒参数与LVEDP的相关性最好,这些包括: peak A velocityA-wave durationA velocity deceleration timepulmonary vein peak velocity(肺静脉峰值流速)In summary, the following four variables should be evaluated when determining whether LV diastolic function is normal (Figure 7) or abnormal. The presence of several abnormal findings as well as cutoff values with high specificity for myocardial disease is recommended to decrease false positive diagnoses of diastolic dysfunction.
超声心动图评价左室舒张功能的建议:来自美国超声心动图学会和欧洲心血管成像协会的更新