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目的：：探讨慢性肺源性心脏病合并心律失常的类型和病因。方法：将慢性肺源性心脏病患者分为并发心律失常组42例，无并发组40例，观察并发心律失常组病例的心律失常类型分布情况，两组病例在治疗过程中并发症发生情况。结果：慢性肺源性心脏病患者在住院接受治疗以后发现心率失常的类型较多，本次检查中发现窦性心动过速20例，窦性心动过速和房性早搏的概率较高，其中窦性心动过速占比47.6%，房性早搏占比28.6%。慢性肺源性心脏病并发心率失常病例中，心房颤动4例，占比9.5%；室性早搏2例，占比4.8%；心房扑动2例，占比4.8%；左束支传导阻滞1例，占比2.4%；房室传导阻滞1例，占比2.4%；其中窦性心动过速和房性早搏的发生率较高。年龄＞60岁的老年人高发心率失常。电解质异常、低血氧症、心力衰竭、肺部感染是常见的并发症。并发心律失常组并发肺部感染42例，占比100%；无并发组并发电解质异常15例，占比37.5%；无并发组并发低血氧症11例，占比27.5%；无并发组发电解质异常心力衰竭15例，占比37.5%；无并发组发肺部感染35例，占比87.5%；并发心律失常组并发症的发病几率要高于无并发组。结论：针对引发心律失常的原因进行治疗，当慢性肺心病与心力衰竭同时出现时，患者体内的血管的阻力不断增加，容易引发低血钾发生，继而导致心律失常甚至死亡。在慢性肺源性心脏病合并心律失常的治疗过程中使用抗心律失常的药物都能够使心律失常的症状减轻，能够帮助患者尽早康复。“,”Objective To explore the types and causes of chronic cor pulmonale with arrhythmia. Method Chronic cor pulmonale patients divided into concurrent group of 42 cases of arrhythmia, without a concurrent group of 40 cases, observation group complicated with cardiac arrhythmia cases of arrhythmia types distribution of cases in the treatment of complications occurred in the process of the two groups. Results In hospitalized patients with chronic cor pulmonale found arrhythmia type is more, after the inspection found in 20 patients with sinus tachycardia, sinus tachycardia and room premature beat is higher, the probability of sinus tachycardia accounted for 47.6%, room sex premature beat accounted for 28.6%. Chronic cor pulmonale complicated arrhythmia cases, 4 cases of atrial fibrillation, accounted for 9.5%;Ventricular premature beat in 2 cases, accounted for 4.8%;Atrial flutter in 2 cases, accounted for 4.8%;Left bundle branch block in 1 case, accounting for more than 2.4%;Atrioventricular block in 1 case, accounting for more than 2.4%;Including the incidence of sinus tachycardia and room premature beat is higher. High incidence of arrhythmia in the elderly age>60 years old. Electrolyte abnormalities, hypoxaemia, heart failure, lung infection is a common complication. Concurrent arrhythmia group of 42 cases complicated with lung infection, accounted for 100%;Without a concurrent group of concurrent electrolyte abnormalities, 15 cases accounted for 37.5%;Without a concurrent group of concurrent hypoxaemia in 11 cases, accounted for 27.5%;No concurrent group hair electrolyte abnormalities, 15 cases of heart failure accounted for 37.5%;Without a concurrent group of 35 cases pulmonary infection, accounted for 87.5%;Concurrent arrhythmia risk of complications than no concurrent group. Conclusion Arrhythmia treatment, causes, chronic cor pulmonale with heart failure occurs at the same time, when a patient increased vascular resistance, prone to hypokalemia, which in turn lead to cardiac arrhythmia and even death. In the treatment of chronic cor pulmonale with arrhythmia during the use of antiarrhythmic drugs can relieve the symptom of arrhythmia, can help patients recover as soon as possible.