镁是生物体内最重要的元素之一,是各种酶的激活剂。血镁过低可引起心律失常,临床较为少见,且由于只注意原发病和其他水电平衡失调,往往忽视镁的缺乏,特别在小儿还缺乏专文报道。我们自1983年——1985年先后遇到四例患者应用镁后使心律失常转复,其中3例心力衰竭亦得到改善,兹介绍如下。病例摘要 Magnesium is one of the most important elements in the organism and is an activator of various enzymes. Low blood magnesium can cause arrhythmia, clinical less common, and only pay attention to the primary disease and other hydropower imbalance, often neglect of magnesium deficiency, especially in children is still lack of articles reported. We have encountered since 1983 - 1985, four patients after the application of magnesium to make arrhythmia recovery, of which 3 cases of heart failure have also been improved, are introduced below. Case summary