Objective. This study aims to compare the electrocardiogram (ECG) abnormalities and QT interval prolongation in 2,886 patients with viral hepatitis cirrhosis and 643 patients with alcoholic cirrhosis in order to understand the characteristics of ECG in patients with cirrhosis and provide information and evidence for clinical diagnosis and treatment. Methods. The ECG data of patients with viral hepatitis cirrhosis and alcoholic liver cirrhosis in the outpatients and inpatients of our hospital from August 2012 to July 2018 were reviewed. The ECG data were recorded, and the ECG report was issued by ECG experts to analyze the abnormal ECG and QT interval of patients in these two groups. Results. In the present study, 1,132 (39.22%) of the 2,886 patients with viral liver cirrhosis and 322 (50.08%) of the 643 patients with alcoholic liver cirrhosis had an abnormal ECG (P < 0.001). Among patients with QT prolongation, 388 patients had viral liver cirrhosis (13.44%) and 170 patients had alcoholic liver cirrhosis (26.44%, P < 0.001). Conclusion. The hemodynamics and electrophysiology of the myocardium are often changed in patients with cirrhosis, and ECG changes may also occur. QT interval prolongation is one of the most common electrophysiological abnormalities in patients with cirrhosis, and QT prolongation is more common in patients with alcoholic liver cirrhosis. Prolonged QT is associated with severe arrhythmia and sudden death and can warn of malignant arrhythmia and sudden death. Therefore, the routine detection of abnormal ECG and QT interval in patients with liver cirrhosis is of significant importance for preventing malignant events.

中文翻译：

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病毒性肝炎肝硬化与酒精性肝硬化心电图及QT间期比较

客观。本研究旨在比较2886例病毒性肝炎肝硬化患者和643例酒精性肝硬化患者的心电图（ECG）异常和QT间期延长，以了解肝硬化患者的心电图特征，为临床诊治提供信息和证据。 . 方法。回顾2012年8月至2018年7月我院门诊和住院的病毒性肝炎肝硬化和酒精性肝硬化患者的心电图资料。记录心电数据，并由心电专家出具心电报告，分析这两组患者的心电异常及QT间期。结果. 在本研究中，2886 例病毒性肝硬化患者中有 1132 例（39.22%）和 643 例酒精性肝硬化患者中有 322 例（50.08%）心电图异常（P  < 0.001）。QT间期延长患者中，病毒性肝硬化388例（13.44%），酒精性肝硬化170例（26.44%，P  <0.001）。结论. 肝硬化患者心肌的血流动力学和电生理常发生改变，心电图也可能发生改变。QT间期延长是肝硬化患者最常见的电生理异常之一，而QT间期延长多见于酒精性肝硬化患者。延长 QT 与严重心律失常和猝死有关，可以警告恶性心律失常和猝死。因此，肝硬化患者心电图和QT间期异常的常规检测对于预防恶性事件具有重要意义。