胎儿心律失常通常用多普勒检查可发现。某些心律失常可引起胎儿心衰水肿甚至死亡。极需在胎儿出生前诊断心律失常的类型。因为(1)某些心律失常可通过给母亲服药来纠正;使肺已成熟的胎儿提前出生,在生后得到更好的治疗,(2)某些心律失常伴有严重心脏结构畸形者,早期诊断后,可在22周前中断妊娠;(3)某些心动过缓病例, Fetal arrhythmias are usually found with Doppler imaging. Some arrhythmias can cause edema and even death of fetal heart failure. Need to be diagnosed before the birth of the type of arrhythmia. Because (1) some arrhythmias can be corrected by taking medication to the mother; birth of prematurely born lungs, better treatment after birth, (2) some arrhythmias with severe cardiac structural abnormalities, early After diagnosis, can be interrupted before 22 weeks of pregnancy; (3) some bradycardia cases,