自１９９１年９月到１９９２年６月，行食管癌、贲门癌切除术４５３例并术后连续心电监护至少７２小时，共发现心律失常者１０８例，发生率为２３．８％。８７．０３％的心律失常发生于手术后２４小时内。术后心律失常的常见原因，为手术创伤和应激反应、心肺功能不全、低血容量及高热反应。护理要求熟悉监护仪性能及操作，掌握心电图基本知识，重视手术前后心律失常的预防护理，及时发现处理术后心律失常和其它术后并发症。 From September 1991 to June 1992, 453 cases of esophageal or cardiac cancer resection were performed for at least 72 hours after continuous ECG monitoring. A total of 108 cases of arrhythmia were found, accounting for 23.8% of the patients. 87.03% of arrhythmias occurred within 24 hours after surgery. The common causes of postoperative arrhythmias are surgical trauma and stress response, cardiopulmonary insufficiency, hypovolemia and hyperthermia. The nursing requirements are familiar with the performance and operation of the monitor, master the basic knowledge of electrocardiogram, attach importance to the prevention and treatment of arrhythmia before and after surgery, and timely detect and treat postoperative arrhythmia and other postoperative complications.