目的：通过与简单心律失常对比探讨影响原发性高血压患者发生复杂心律失常的危险因素。方法：回顾性分析我院接诊的149例原发性高血压患者的临床资料。按照Lown's标准及Kleiger分级法将患者分为简单心律失常组与复杂心律失常组，采用多因素Logistic回归分析患者年龄、病程、高血压危险分级、性别、吸烟史、饮酒史、体质指数（BMI）、左心室舒张期后壁厚度（LVPWD）及左心房内径（LAD）与发生复杂心律失常的关系。结果：原发性高血压患者年龄≥60岁者复杂心律失常的发生率显著高于60岁以下者（χ²=17.494，P<0.01），病程≥5年者显著高于病程<5年者（χ²=18.073，P<0.01），饮酒者显著高于无饮酒者；复杂心律失常的发生与左室壁厚度及左房直径无关（χ²=5.36，P=0.026）。多因素分析示年龄（OR=0.323，95%CI为0.155～0.674，P=0.003）及病程（OR=0.299，95%CI为0.141～0.635，P=0.002）为高血压患者发生复杂心律失常的独立危险因素。结论：原发性高血压年龄≥60岁、病程≥5年者发生复杂心律失常的风险较高。

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