Abstract：ObjectiveTo compare the effect on cardiac systolic functions between the patients having accepted the operations of right ventricular outflow tract septum (RVOTS) pacing and right ventricular apex(RVA) pacing 12 months before.MethodsOne hundred patients with sick sinus syndrome who had implanted VVI pacemaker for the first time were observed and randomly divided into RVOTS-pacing group and RVA-pacing group. The levels of NT-proBNP were detected before and 12 months after the pacemaker implantation.ResultsIn RVOTS-pacing group, there was no significant difference of serum NT-proBNP level before and 12 months after the operation(P>0.05) while there was a significant increase in RVA-pacing group. The differences of serum NT-proBNP levels between the two groups 12 months postoperatively also showed statistical significance(P<0.05).ConclusionCompared with RVA pacing, RVOTS pacing had less influence on cardiac systolic function and more similar to physiological pacing.
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2013, Vol. 22 
