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. 2014 Jun 10;9(6):e99191. doi: 10.1371/journal.pone.0099191

Figure 3. RV pacing induces marked LV dyssynchrony compared to RA pacing.

Figure 3

Summary of echocardiographic parameters in group A subjected to no pacing, RA pacing, and RV pacing. A: Average time to peak Ecc of all six segments (global). B: Average peak Ecc of all six segments (global). C: LV fractional area shortening. D: Standard deviation of the time to peak Ecc of different segments. E: Standard deviation of the peak Ecc of different segments. F: Analysis of ‘delta TP opposing segments’, i.e., the average time difference between the peak Ecc of opposing segments. * P<0.05, ** P<0.01. Horizontal lines above\below the bar graphs indicate significant differences between pacing modes in the post-hoc analysis. Note that in D the Kruskal-Wallis test was significant. However, the post-hoc analysis could not reveal the source of difference between the groups.