Wu J M, Young M L, Wu M H, Wang T K, Lue H C
Department of Pediatrics, National Taiwan University Hospital, R.O.C.
J Formos Med Assoc. 1991 May;90(5):517-9.
Junctional ectopic tachycardia (JET) in infancy is one of the serious arrhythmias which can be fatal. Typical features of JET include rapid and irregular heart beats with atrioventricular dissociation. Two cases of JET are reported: Case 1 was a 35-week-gestational age newborn who was found to have hydropsy and fetal tachycardia at the 21st week of gestational age. Antiarrhythmic agents including digoxin, propranolol and verapamil were administered to his mother to treat the fetal arrhythmia without success. JET was recognized at birth which was spontaneously converted into a sinus rhythm at 1 month of age. The maternal history revealed that two previous pregnancies ended in hydrops fetalis, and one of these was documented to have fetal tachycardia. Case 2 was a 6-month-old male infant with JET and congestive heart failure. After failure of various antiarrhythmic agents, amiodarone finally slowed down his heart rate and controlled his congestive heart failure.
婴儿交界性异位性心动过速（JET）是一种严重的心律失常，可能会致命。JET的典型特征包括快速且不规则的心跳以及房室分离。报告了两例JET病例：病例1是一名孕35周的新生儿，在孕21周时被发现有水肿和胎儿心动过速。给他的母亲使用了包括地高辛、普萘洛尔和维拉帕米在内的抗心律失常药物来治疗胎儿心律失常，但未成功。出生时诊断为JET，1月龄时自发转为窦性心律。母亲的病史显示，之前两次怀孕均以胎儿水肿告终，其中一次记录有胎儿心动过速。病例2是一名6个月大的男婴，患有JET和充血性心力衰竭。在各种抗心律失常药物治疗失败后，胺碘酮最终使他的心率减慢并控制了充血性心力衰竭。
