Why the study?
Does right ventricular pacing have different effects on left ventricular function compared to classic left bundle branch block?
Population
48 patients evaluated at a tertiary cardiac referral centre, including 24 with a VVI pacemaker implanted and…
Comparison
Right ventricular pacing (VVI pacemaker) vs Classic left bundle branch block
Design
Cohort
Authors
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RV pacing should not proxy for LBBB in dyssynchrony research; challenges model validity and leaves open need for alternatives.
Does right ventricular pacing have different effects on left ventricular function compared to classic left bundle branch block?
Right ventricular pacing activates the left ventricle more rapidly than classic left bundle branch block, suggesting that RV pacing is not an accurate experimental model for LBBB in humans.
Xiao et al. (1993) studied this question.
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