1.Premature restriction or closure of foramen ovale (FO) in otherwise structurally normal hearts may be associated with right ventricular dilation, tricuspid regurgitation, pericardial effusion, heart failure, even poor perinatal outcomes.
在其他结构正常的心脏中，卵圆孔的过早限制或关闭可能与右心室扩张、三尖瓣反流、心包积液、心力衰竭，甚至不良的围产期结局有关。