左心室衰竭导致左心房扩张，肺静脉充盈。

Left ventricular failure results in distention of the left atrium, engorgement of the pulmonary veins.

youdao

右心房高度扩大，腔静脉亦显著扩张。

The right atrium and vena cava were remarkably dilated.

youdao

持续性房颤伴有不可控制的心房快速速率反应可能引起扩张性心肌病导致心房内心电重构(心房心肌病)。

Persistent AF with an uncontrolled, rapid ventricular heart rate response can cause a dilated cardiomyopathy and can lead to electrical remodeling in the atria (atrial cardiomyopathy).

youdao