压差10 mmHg、右心室收缩压RVSP40 mmHg相关。二尖瓣跨
瓣压差≤10 mmHg并且在基线和妊娠晚期右室收缩压正常的妇女发生心脏不良事件的风险最低(11%),阴性预测值为89%。因此,对于重度
二尖瓣狭窄的妇女,妊娠还是有风险的;需要慎重考虑,最好能够矫正重度
狭窄以后再怀孕。参考文献:Cardiac Complications in Pregnant Women With Isolated Mitral Stenosis and Their Association With Echocardiographic Changes During Pregnancy. Am J Cardiol
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