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

doi:10.3969/j.issn.1006-7795.2015.03.012

Abstract

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

CLC Number:

R541.7

Luo Hongyu, Hua Qi, Liu Jianfeng, Zhu Weiwei. Discussion of the relationships between PVC-burden with electrocardiography and heart function parameters in patients with premature ventricular contractions[J]. Journal of Capital Medical University, 2015, 36(3): 399-404.

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URL: https://journal03.magtech.org.cn/Jweb_sdykdxxb/EN/10.3969/j.issn.1006-7795.2015.03.012

https://journal03.magtech.org.cn/Jweb_sdykdxxb/EN/Y2015/V36/I3/399

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