急性心肌梗塞病人体内镁的动态观察

Dynamic observation of magnesium changes in acute myocardial infarction

本文用原子吸收分光光度法对30例AMI病人的血浆、红细胞和24小时尿中镁进行动态观察,并以30例健康人作为对照。结果表明:AMI组第1、3天血、尿中镁明显低于对照组;伴有室性心律失常时血镁降低更显著,提示:AMI早期一过性血、尿中镁降低是心律失常发生的一个重要因素。

The plasma, red cell and 24 hours urine magnesium in 30 patients with acute myocardial infarction (AMI) were determined with atomic absorption spectrophotometry on the first, third, fifth, seventh and fourteenth days after AMI. The results demonstrat- ed that the mean plasma magnesium level and 24 hours urine magnesium, compared with the controls, were lower in patients with AMI on the first and third days during admis- sion. These was no significant change of red cell magnesium between them. The plasma magnesium of patients w.th ventricular arrhythmias was significantly lower than those witbout ventricular arrhythmias. It is suggested that the low serum magnesium and 24 hours urine magnesium might be important arrhythmogenitic factors in the early time of AMI.