Arrhythmia and structural abnormalities of the fetal heart.
Arrhythmia and structural abnormalities of the fetal heart.
复制标题
胎儿心脏的心律失常和结构异常。
作者：
P. Stewart;H. M. Tonge;J. Wladimiroff
对30例心律失常胎儿进行超声检查。这包括胎儿心脏的横截面和M型超声心动图和脉冲多普勒分析。观察到三种类型的心律失常：异位搏动、快速性心律失常和心动过缓。两例异位搏动与心脏结构异常有关，其中一例导致胎儿死亡。心动过速与结构缺陷无关，但1例患者死于心力衰竭。在我们的经验中，经胎盘治疗快速性心律失常并不成功。心动过缓组4例合并先天性心脏畸形，死亡率50%。当胎儿心律失常已被确定时，仔细的结构和节律分析对于促进预后、计划分娩时间和方式以及监测经胎盘治疗（如有指征）至关重要。
Thirty fetuses with cardiac arrhythmias were referred for ultrasonography. This included cross sectional and M mode echocardiography and pulsed Doppler analysis of the fetal heart. Three types of arrhythmias were observed: ectopic beats, tachyarrhythmias, and bradycardia. Ectopic beats were associated with cardiac structural abnormalities in two cases, resulting in fetal death in one. Tachycardia was not associated with structural defect, but death from cardiac failure occurred in one patient. Transplacental treatment for tachyarrhythmia was not successful in our experience. In the group with bradycardia four cases had congenital cardiac abnormalities and the mortality rate was 50%. When a fetal cardiac arrhythmia has been established careful structural and rhythm analysis is of vital importance in facilitating prognosis, planning of time and mode of delivery, and monitoring of transplacental treatment where indicated.