Lorenz散点图对鉴别室性早搏及室性并行心律的应用研究  

Application of Lorenz Scatter Plots in Differentiating Premature Ventricular Beat and Ventricular Parasystole

作　　者：何碧柳 蔡玮贤 HE Biliu;CAI Weixian(Shunde Hospital Affiliated to Guangzhou Medical University,Foshan 528315,China;不详)

机构地区：[1]广州医科大学附属顺德医院,广东佛山528315

出　　处：《中外医学研究》2022年第4期74-77,共4页CHINESE AND FOREIGN MEDICAL RESEARCH

基　　金：佛山市卫生健康局医学科研课题项目(20210330)。

摘　　要：目的:探讨Lorenz散点图对鉴别室性早搏及室性并行心律的应用效果。方法:选择2020年5月-2021年4月广州医科大学附属顺德医院收治的动态心电图结果为心律失常的患者60例作为研究对象。以数据处理结合临床症状的人工校正结果作为诊断的金标准,之后采用Lorenz散点图进行分析。对比分析其诊断结果,比较室性早搏、室性并行心律的检出率。结果:室性早搏Lorenz散点图特征为四分布,斜率接近于0;室性并行心律Lorenz散点图特征为垂直于45°角线呈倒Y形,为四分布图形,于45°线垂直线两侧左右有室性早搏点集中分布,其中前、后早搏点分别垂直于X和Y轴。传统动态心电图疾病检出率为83.33%(50/60),室性早搏检出率为100%(17/17),室性并行心律检出率为69.70%(22/30);Lorenz散点图疾病检出率为96.67%(58/60),室性早搏检出率为100%(17/17),室性并行心律检出率为93.94%(29/30);Lorenz散点图检出率高于传统动态心电图,室性并行心律检出率前者高于后者,差异有统计学意义(P<0.05)。结论:室性早搏和室性并行心律在Lorenz散点图中具有不同的表现特征,Lorenz散点图可快速有效鉴别室性早搏与室性并行心律。Objective:To explore the effect of Lorenz scatter plots of the identification of premature ventricular beat and ventricular parasystole.Method:Sixty patients admitted to Shunde Hospital Affiliated to Guangzhou Medical University from May 2020 to April 2021 with dynamic electrocardiogram results of arrhythmia were selected as the research subjects.Data processing combined with manual correction of clinical symptoms was used as the gold standard for diagnosis,followed by analysis using Lorenz scatter plots.The diagnostic results were compared and the detection rate of premature ventricular beat and ventricular parasystole was compared.Result:Ventricular premature beat Lorenz scatter plots were characterized by 4 distribution with a slope close to 0.The Lorenz scatterplot of ventricular parallel rhythm was characterised as an inverted Y-shape perpendicular to the angular line of 45°,4 distribution graph,with a central distribution of ventricular premature beat on the right and left sides of the vertical line of 45°,where the anterior and posterior premature beat were perpendicular to the X and Y axes,respectively.The disease detection rate by traditional dynamic electrocardiogram was 83.33% (50/60),ventricular premature beat alone was 100% (17/17),and ventricular parasystole was 69.70% (22/30).The disease detection rate by Lorenz scatter plot was 96.67% (58/60),ventricular premature beat alone was 100% (17/17),and ventricular parasystole was 93.94% (29/30).The detection rate of Lorenz scatter plots was higher than that of traditional dynamic electrocardiogram,and the detection rate of ventricular parasystole in the former group was higher than in the latter group,the differences were statistically significant (P<0.05) Conclusion:Ventricular premature beat and ventricular parasystole have different performance characteristics in Lorenz scatter plots,which can rapidly and effectively discriminate ventricular premature beat from ventricular parasystole.

关 键 词：LORENZ散点图 动态心电图 室性早搏 室性并行心律 鉴别 

分 类 号：R541.7[医药卫生—心血管疾病]