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Figure 3 Effect of Upgrading to BiV Pacing on LV Ejection Fraction
Left ventricular (LV) ejection fraction at different time points for 11 patients who were upgraded to biventricular (BiV) pacing after a mean of 4.1 ± 2.0 years of permanent right ventricular (RV) pacing. After permanent RV pacing, LV ejection fraction had significantly decreased. This was partly reversed after upgrade to BiV pacing. *As assessed with repeated measures analysis of variance. Bonferroni post-hoc testing revealed significant differences between baseline and RV pacing (p < 0.001) and between RV pacing and BiV pacing (p < 0.01).
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