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目的:总结低血钾症的心电图特征,以探讨心电图对低血钾的诊断价值。方法:回顾性分析2011年1月-2013年10月收治的低血钾症患者118例的临床及心电图资料。结果:随着低血钾症严重程度的增加,心电图呈特征性的ST段压低、T波振幅降低、U波振幅增高、T-U融合、P波和QRS波的振幅和时限增加、P-R间期和Q-T间期延长及心律失常。结论:低血钾症具有特征性的心电图改变,有助于低血钾的快速诊断。
Objective: To summarize the ECG characteristics of hypokalemia to explore the diagnostic value of ECG on hypokalemia. Methods: The clinical and electrocardiographic data of 118 patients with hypokalemia admitted from January 2011 to October 2013 were retrospectively analyzed. Results: With the increase of severity of hypokalemia, ST-segment depression, T-wave amplitude reduction, U-wave amplitude increase, TU fusion, P wave and QRS wave amplitude and time-limit increased, QT prolongation and arrhythmia. Conclusion: Hypokalemia has the characteristic ECG changes, which is helpful for the rapid diagnosis of hypokalemia.