retrograde beat

• 逆行搏动

retrograde beat的用法和样例：

例句

1. Aex beat enlargement and left-downward displacement.
   心尖搏动范围扩大，向左下移位。
2. On examination, he has a resting tachycardia and eidence of left entricular dilatation with a displaced apex beat and possible secondary mitral regurgitation.
   体检发现有静息时心动过速与左心室扩大依据，心尖搏动偏移，可能有二尖瓣返流。