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Figure 3 (Upper panel) Pressure-volume diagrams during sinus rhythm (SR), left ventricular (LV) apex pacing, biventricular (BiV) pacing, multi-LV pacing, and multi LV + right ventricular (RV) pacing. (Lower panels) Mean values ± SD of maximal rate of rise of LV pressure (LVdP/dtpos) and stroke work (SW) during LV apex, BiV, multi-LV, and multi-LV + RV pacing relative to SR. Differences in SW and LVdP/dtpos between the four pacing modes were not statistically significant.
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