镁与缺血性心脏病、动脉硬化以及心律失常等循环系统疾病的关系颇受重视。但是,关于镁对人心脏兴奋传导系统影响的研究,只见有Dicarlo等报告,且尚有许多不清楚之处,为此本文作者作了进一步的研究。作者将基础疾病为缺血性心脏病的14例,瓣膜病的2例,扩张型心肌病的1例,心肌淀粉样变的1例,特发性室性心动过速的1例,病态窦房结综合征(SSS)的1例,共20例,分成二组,其中Ⅰ组9例(男7,女2,平均53.3岁)给予硫酸镁20mg/kg/min;Ⅱ组11例(男10,女1,平均59.9岁)给予硫酸镁40mg/kg/min。分别于硫酸镁用药前后进行电生理检查,并 Magnesium and ischemic heart disease, atherosclerosis and arrhythmia and other circulatory diseases pay more attention to the relationship. However, the study on the effect of magnesium on the excitation and conduction system of human heart has been reported by Dicarlo et al., And there are still many unclear points. Therefore, the author of this article made further research. The authors will be based on 14 cases of ischemic heart disease, valvular disease in 2 cases, 1 case of dilated cardiomyopathy, myocardial amyloidosis in 1 case, idiopathic ventricular tachycardia in 1 case, sick sinus One case of room syndrome (SSS), 20 cases in total, was divided into two groups, including 9 cases in group I (male 7, female 2, average 53.3 years) given magnesium sulfate 20mg / kg / min; 10, female 1, mean 59.9 years) were given magnesium sulfate 40 mg / kg / min. Magnesium sulfate were administered before and after electrophysiological examination, and