108例急性砷中毒患者的心电图分析

Analysis Of ECG In 108 Patients With Acute Arsenic Poisoning

１９９２年郑州发生了７００余例急性砷中毒，对我院收治的１０８例患者于中毒初期全部描记了ＥＣＧ并作动态观察。７１例（６５．７％）出现ＳＴ－Ｔ改变，主要是Ｔ波异常，呈倒置、双峰、平顶和低平及Ｑ－Ｔｃ延长，严重者有ＳＴ段压低（０．０５～０．２０ｍｖ）其中２７例（２５％）ＥＣＣ诊断“心肌受损”。ＥＣＧ异常改变程度与同期尿砷含量测量结果呈线性相关（ｒ＝０．６１７．Ｐ＜０．０１）．Ｔ波改变没有区域性特征。ＥＣＧ诊断低血钾１３例。与心肌受损并存者仅４例，与同期血清钾测定结果基本吻合，而与同期尿砷含量测定结果相关性不显著。提示及时全面描记ＥＣＣ和动态观察能为急性砷中毒的抢救治疗提供重要参考依据。

In this report ,all of the 108 patients with acute arsenic poisoning hadbeen examined by ECG the day they were admitted to the hospital and the dynamic ob-servation had been taken during the period in hospital]. Among them ,the abnormal showof ST-T happened in 71 cases (65.7%),including T wave inversion,double-peak , plateaushape,low-tardiness and Q-Tc ptolongation. In some serious patients ,ST segment weredepressed (0.05-0.20mv ). The diagnosis of ECG in 27 paticnts were myocardial damage.The degree of ECG changes in 108 patients were significantg correlated with contents ofurinary arsenic in the corresponding period (r=0.617, P <0.01). The abnomal T wavehave no regional feature. Hypokalemia diagnosed by ECG in 13 cases were not interrelat-ed with the content of urinary arsenic in the same time (r=0.|4| ,P >0.05)and don'tconfuse myocardial damage with hypokalemia.