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目的探讨低血钾症患者的心电图、血生化诊断价值,进行对比分析。方法本文对192例低钾血症患者的心电图、血生化及两者联合筛查的测定结果及三组低钾血症中不同心电图的表现进行对比分析。结果心电图诊断低钾血症符合率为84.9%,优于血清钾测定(75%)。在重症低钾血症中,心电图和血清钾联合筛查与临床诊断符合率是100%。心电图U波改变、QT间期延长、室性心律失常发生率随血清钾浓度的降低而递增。结论心电图对低钾血症患者诊治及预后具有重要的临床意义。
Objective To investigate the diagnostic value of electrocardiogram and blood biochemistry in patients with hypokalemia and to make a comparative analysis. Methods In this paper, 192 cases of hypokalemia in patients with electrocardiogram, blood biochemistry and the two combined screening results and the three groups of hypokalemia in different electrocardiogram performance comparison analysis. Results The coincidence rate of electrocardiogram diagnosis of hypokalemia was 84.9%, better than serum potassium determination (75%). In severe hypokalemia, electrocardiogram and serum potassium screening and clinical diagnosis coincidence rate was 100%. ECG U waves change, QT interval prolongation, the incidence of ventricular arrhythmias increases with the decrease of serum potassium concentration. Conclusions ECG has important clinical significance in diagnosis and prognosis of patients with hypokalemia.