Epstein M L, Benditt D G
Am Heart J. 1981 Jul;102(1):80-4. doi: 10.1016/0002-8703(81)90417-8.
Although the long-term prognosis of children with persistent supraventricular tachycardia (SVT) has been generally considered benign, recent reports have suggested that some of these patients may develop cardiac dysfunction secondary to their persistent SVT. The clinical course of six children demonstrating ECG criteria of persistent SVT are presented herein with follow-up data for 5 to 20 years. Persistent SVT was present in each patient from 2 to 19 years. Two patients had transient congestive heart failure early in their course of persistent SVT, and two others demonstrated continued roentgenographic evidence of mild cardiomegaly without associated symptomatology. Conventional antiarrhythmics administered briefly in five patients and chronically in two were without effect on their arrhythmias. Persistent SVT remains in three patients and a fourth continues to exhibit intermittent episodes of SVT; however, all six patients are currently asymptomatic with two in stable normal sinus rhythm. This investigation indicates that the persistent form of SVT (lasting more than 1 year) is uncommon among children with paroxysmal SVT, and long-term observation of the consequences of persistent SVT supports the view that this rhythm disturbance is generally well tolerated in such patients.
尽管一般认为持续性室上性心动过速（SVT）患儿的长期预后良好，但最近的报告表明，其中一些患者可能会因持续性SVT而出现心脏功能障碍。本文介绍了6例符合持续性SVT心电图标准的患儿的临床病程，并提供了5至20年的随访数据。每位患者持续性SVT的病程为2至19年。2例患者在持续性SVT病程早期出现短暂性充血性心力衰竭，另外2例患者胸部X线检查持续显示轻度心脏扩大，但无相关症状。5例患者短期使用、2例患者长期使用传统抗心律失常药物均未能控制心律失常。3例患者仍有持续性SVT，第4例患者仍有间歇性SVT发作；然而，所有6例患者目前均无症状，其中2例维持稳定的正常窦性心律。这项研究表明，持续性SVT（持续超过1年）在阵发性SVT患儿中并不常见，对持续性SVT后果的长期观察支持了这样一种观点，即这种心律失常在这类患者中通常耐受性良好。
