Abdelkhirane C, Roudaut R, Coste P, Cailleaux C, Bonnet J, Besse P
Laboratoire d'hémodynamique, clinique Kadi, Casablanca, Maroc.
Arch Mal Coeur Vaiss. 1995 Jun;88(6):861-7.
The aim of this study was to analyse the possible relationship between inversion of the end diastolic wave of pulmonary venous flow (Avp) recorded by transoesophageal echocardiography in the left superior pulmonary vein and left ventricular end-diastolic pressures (LVEDP) at cardiac catheterisation. In this series of patients, there was a poor correlation between the E/A ratio of transmitral blood flow and LVEDP. On the other hand, there was a better correlation between LVEDP and the difference of duration of the end diastolic Avp wave and the A wave of mitral flow. An even better correlation was found between LVEDP with respect to the contribution of atrial systole and the difference of duration Avp-A. When the pressure due to atrial contraction exceeds 15 mmHg, the difference between the durations of pulmonary and mitral A waves increases. Therefore, when the duration of the end diastolic Avp is greater than that of the mitral A wave, a LVEDP of over 15 mmHg may be predicted with a sensitivity of 88% and a specificity of 74%.
本研究的目的是分析经食管超声心动图记录的左上肺静脉肺静脉血流舒张末期波（Avp）倒置与心导管检查时左心室舒张末期压力（LVEDP）之间的可能关系。在这组患者中，二尖瓣血流E/A比值与LVEDP之间的相关性较差。另一方面，LVEDP与舒张末期Avp波持续时间与二尖瓣血流A波持续时间之差之间的相关性较好。关于心房收缩的贡献，LVEDP与Avp - A持续时间之差之间的相关性甚至更好。当心房收缩产生的压力超过15 mmHg时，肺静脉和二尖瓣A波持续时间之差会增大。因此，当舒张末期Avp的持续时间大于二尖瓣A波的持续时间时，可能预测LVEDP超过15 mmHg，其敏感性为88%，特异性为74%。
