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《Academic Journal of Second Military Medical University》 2008-01
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Comparison of head-chest lead and routine lead electrocardiograms in human right ventricular pacing

GONG Hong-wu1,MENG Su-rong2,XU Deng-cheng1,HOU Fan1,ZHANG Xiao-yu1,LI Xiao-bo1,QI Zhan-zhong1 1.Cardiovascular Research Centre,No.452 Hospital of PLA,Chengdu 610021,China 2.Department of Cardiology,Nanfang Hospital,Southern Medical University,Guangzhou 510516  
Objective:To study the changes and rules of the reference point potentials of electrocardiograms(ECGs)before and after pacing.Methods:The head-chest lead and routine lead ECGs of the patients with permanent pacemaker implantation were recorded with and without right ventricular pacing;the Q,R and S wave amplitudes were compared between the 2 ECGs.Results:Without right ventricular pacing,the amplitudes of Q and S wave of routine lead were higher than those of the head-chest lead;the amplitude of R wave was lower than that of the head-chest lead.With right ventricle pacing,the amplitudes of Q,R,and S waves of routine lead were lower than those of head-chest lead(all P0.01).Conclusion:The transduction direction of the cardiac excitement has great influence on the potentials of the reference point.
【CateGory Index】: R540.4
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