首都医科大学学报 ›› 2015, Vol. 36 ›› Issue (3): 399-404.doi: 10.3969/j.issn.1006-7795.2015.03.012

• 心血管疾病的诊断与治疗 • 上一篇    下一篇

室性期前收缩负荷与心电图及心功能参数的相关性分析

罗鸿宇1, 华琦1, 刘建峰2, 朱玮玮1   

  1. 1. 首都医科大学宣武医院心脏科, 北京 100053;
    2. 北京市利康医院内科, 北京 102609
  • 收稿日期:2015-01-15 出版日期:2015-06-21 发布日期:2015-06-15
  • 通讯作者: 华琦 E-mail:huaqi5371@medmail.com.cn
  • 基金资助:

    国家高技术研究发展计划(863计划)(2012AA02A516).

Discussion of the relationships between PVC-burden with electrocardiography and heart function parameters in patients with premature ventricular contractions

Luo Hongyu1, Hua Qi1, Liu Jianfeng2, Zhu Weiwei1   

  1. 1. Department of Cardiology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China;
    2. Department of Internal Medicine, Likang Hospital, Beijing 102609, China
  • Received:2015-01-15 Online:2015-06-21 Published:2015-06-15
  • Supported by:

    This study was supported by Natural High Technology Research and Development Program of China(863 Program) (2012AA02A516)

摘要:

目的 探讨频发室性期前收缩(premature ventricular contractions,PVCs)患者期前收缩负荷、心电图QRS波时限、校正QT间期(correct QT interval by Bazett, QTCB)及心功能参数的关系.方法 回顾性分析频发PVCs患者110例,根据期前收缩负荷分为低负荷组(< 10%,n=25)、中负荷组(10%~20%,n=54)、高负荷组(> 20%,n=31);另选取无PVCs患者34例为对照组,比较4组间基本资料、心电图指标、心功能参数等并分析其相关性.结果 与对照组比较,中负荷组、高负荷组QRS波时限增宽、QTCB延长,高负荷组QT间期延长,中负荷组、高负荷组左心室心肌质量指数(left ventricular myocardial mass index, LVMI)升高,差异有统计学意义(P <0.05);经多元线性回归分析得出回归方程Y=0.047X1+0.088 X2-12.038,F=7.977,P=0.000,标准化回归系数QTCB为0.290,QRS波时限为0.193.结论 随期前收缩负荷增加,QRS波时限增宽、QTCB延长、LVMI增加,且QTCB与期前收缩负荷的相关性大于QRS,应注意监测相关指标,早期予以临床干预.

关键词: 室性期前收缩, 期前收缩负荷, QRS波时限, 校正QT间期, 左心室心肌质量指数

Abstract:

Objective To study the relationships between premature ventricular contractions (PVCs) burden with the QRS duration, correct QT interval by Bazett (QTCB) on the ECG and heart function parameters in patients with frequent PVCs. Methods Retrospective analyzed 110 patients with frequent PVCs. All the patients were divided into 3 groups by the burden of PVCs: the lower burden group(< 10%,n=25), the medium burden group(10%-20%,n=54), the higher burden group(> 20%,n=31); and selected another 34 patients without PVCs as control group. The relationships between PVCs burden with electrocardiography and heart function were analyzed. Results Compared with the control group, the QRS duration, QTCB and left ventricular myocardial mass index (LVMI) were increased (P <0.01). The equation of liner regression is Y=0.047X1+0.088 X2-12.038,F=7.977,P=0.000,the standardized coefficients is QTCB=0.290, QRS duration=0.193.Conclusion The QRS duration, QTCB, and LVMI increased with PVCs burden's increase, and QTCB had a greater impact on PVCs burden.

Key words: premature ventricularcontractions, contraction burden, QRS duration, QTCB, left ventricular myocardial mass index

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