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目的：为了及时发现和处理胸部肿瘤手术后出现的各种心律失常及心肌供血情况。方法：对４３０ 例胸部肿瘤病人术后１ ～３ 天进行１２ 导联心电图检查。结果：术前心电图异常３０７ 例，约占７１ ％ 。术后心电图异常３４５ 例，约占８０ ％ 。慢性冠状动脉供血不足、心肌劳累、低血钾三种心电图异常发生率手术前后无明显变化。各种心律失常、急性心梗、急性心肌缺血、 Ｑ Ｒ Ｓ 低电压、完全性右束支传导阻滞的发生率术后明显增加。结论：上述情况发生的原因与术前心脏疾患的治疗和预防措施、术中和术后的不良刺激以及低氧血症有关。
OBJECTIVE: To detect and deal with various arrhythmia and myocardial blood supply after chest tumor surgery in time. METHODS: A 12-lead electrocardiogram was performed on 430 patients with thoracic tumors 1 to 3 days after surgery. RESULTS: There were 307 preoperative electrocardiogram abnormalities, accounting for approximately 71%. There were 345 postoperative electrocardiogram abnormalities, accounting for about 80%. Chronic coronary insufficiency, myocardial fatigue, and hypokalemia had no significant changes in the incidence of abnormal ECG before and after surgery. The incidence of various arrhythmias, acute myocardial infarction, acute myocardial ischemia, Q R S low voltage, and complete right bundle branch block was significantly increased after surgery. Conclusion: The above-mentioned conditions are related to the treatment and prevention measures of preoperative cardiac disease, intraoperative and postoperative adverse stimuli, and hypoxemia.