论文部分内容阅读
目的:分析心脏病和非心脏病患者室性期前收缩Lown分级特点。方法:选择经24 h动态心电图检查确诊的室性期前收缩420例,对其动态心电图结果及病因资料进行分析;比较室性期前收缩在心脏病组和非心脏病组、冠心病组和非冠心病组之间的差异。结果:Lown分级1级170例中,心脏病组占22.94%,非常显著低于心脏病组,而Lown分级2级、3级4、级室性期前收缩比例,心脏病组均非常显著高于非心脏病组(P<0.01);冠心病组Lown分级1或2级室性期前收缩占27.1%,非常显著低于非冠心病组,而Lown分级3级4、级、5级均显著或非常显著高于非冠心病组(P<0.05,P<0.01)。结论:Lown分级有助于区分室性期前收缩的性质,冠心病所致期前收缩以Lown分级3级比例最高。
OBJECTIVE: To analyze the Lown classification of ventricular contraction in patients with heart disease and non-heart disease. Methods: Forty-two cases of premature ventricular contractions were confirmed by 24-hour ambulatory electrocardiogram (ECG). The dynamic electrocardiographic results and etiological data were analyzed. The ventricular contraction was compared between patients with heart disease, non-heart disease, coronary heart disease, Differences between non-CHD groups. Results: Lown grade 1 170 cases, cardiomyopathy group accounted for 22.94%, significantly lower than the heart disease group, and Lown grade 2, grade 3, grade ventricular premature contractions, heart disease were significantly higher (P <0.01). The premature rupture of grade 1 or 2 in Lown group was 27.1% in coronary heart disease group, which was significantly lower than that in non-coronary heart disease group, while Lown grade 3, grade 4 and grade 5 Significantly or very significantly higher than non-coronary heart disease group (P <0.05, P <0.01). Conclusion: Lown classification helps to distinguish the nature of premature ventricular contractions, coronary heart disease caused by the contraction before Lown grade 3 highest proportion.