英语语法分析

When an arterial switch is impossible, an atrial switch will be attempted using either the Senning or Mustard procedure.

当无法进行动脉切换时，将使用森宁或马斯塔德程序尝试进行心房切换。

Atrial natriuretic peptide(ANP) plays an important role in the regulation of blood pressure through sodium-water homoeostasis.

心钠素通过水盐代谢平衡在调节血压中起重要作用。

He was suffering from atrial fibrillation, the most common form of heart rhythm problem.

他患有最常见的心率问题：房颤症。