Mattioli A V, Masciocco G, Vivoli D
Cattedra di Cardiologia, Università degli Studi, Modena.
Cardiologia. 1993 Dec;38(12):793-6.
Pulmonary venous flow (PVF) can be recorded by transesophageal echocardiography. In normal subjects the PVF is triphasic with 2 peaks in systole and 1 peak in diastole. At atrial contraction it is possible to record a reversal flow (A wave). The evaluation of PVF pattern in patients in atrial fibrillation can better explain the role of atrial contraction. We considered 18 patients with chronic atrial fibrillation with transesophageal Doppler echocardiography. Then we compared the pattern obtained from patients with atrial fibrillation with the normal pattern. During atrial fibrillation we observed a flow reversal during early systolic period. The diastolic wave was increased and prolonged. We also observed that the A wave seems to disappear. The loss of atrial contraction deeply modifies the Doppler PVF.
肺静脉血流（PVF）可通过经食管超声心动图记录。在正常受试者中，PVF呈三相，收缩期有2个峰值，舒张期有1个峰值。在心房收缩时，可以记录到逆向血流（A波）。评估心房颤动患者的PVF模式可以更好地解释心房收缩的作用。我们对18例慢性心房颤动患者进行了经食管多普勒超声心动图检查。然后将心房颤动患者获得的模式与正常模式进行比较。在心房颤动期间，我们观察到收缩早期出现血流逆转。舒张波增大且延长。我们还观察到A波似乎消失了。心房收缩的丧失深刻地改变了多普勒PVF。
