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目的对动态心电图中长RR间期≥2000ms进行分析(房颤除外),并探讨其诊断和鉴别诊断,以提高诊断的正确性。方法回顾性分析5000例动态心电图中161例中长RR间期≥2000ms者,统计导致长间期的各类病因和心电图改变。结果长RR间期的总发生率为3.22%(161/5000),50岁以上患者占85.22%,病因以冠心病、心肌梗死、高血压病多见;导致长间期的心电图改变从高至低主要为房性早搏未下传27.33%(44/161),二度Ⅰ型房室阻滞14.29%(23/161),二度Ⅱ型窦房阻滞13.66%)22/161),窦性心动过缓伴不齐12.42%(20/161),三度房室阻滞6.83%(11/161)。结论动态心电图是长RR间期有效且安全的检测项目,熟悉导致长间期的病因、各类心电图改变之间的诊断和鉴别诊断有利于提高诊断正确率,有助于临床诊断和治疗。
Objective To analyze the long RR interval ≥2000 ms in ambulatory electrocardiogram (except atrial fibrillation), and to explore its diagnosis and differential diagnosis in order to improve the correctness of diagnosis. Methods A retrospective analysis of 161 cases of 5000 patients with long-term RR interval of more than or equal to 2000ms, the statistics lead to all kinds of etiology and ECG changes. Results The overall incidence of long RR interval was 3.22% (161/5000), 85.22% of patients over the age of 50, the cause of coronary heart disease, myocardial infarction, hypertension, more common; resulting in long-term ECG changes from high Low mainly for atrial premature beats did not pass 27.33% (44/161), second-degree type Ⅰ atrioventricular block was 14.29% (23/161), second-degree sino-atrial block 13.66%) 22/161), sinus Sexual bradycardia with missing 12.42% (20/161), third degree atrioventricular block 6.83% (11/161). Conclusions Holter monitoring is an effective and safe test for long RR interval. Being familiar with the etiology of long-term RR, the diagnosis and differential diagnosis between various ECG changes are helpful to improve the accuracy of diagnosis and help clinical diagnosis and treatment.