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Figure 1 V30, the ex vivo volume providing a ventricular pressure of 30 mm Hg, is an index of ventricular size. Left ventricular (LV) V30 was decreased after left ventricular assist device (LVAD) support, but right ventricular (RV) V30 did not change significantly. Ruled bars = nonfailing hearts; black bars = medical support; open bars = LVAD support. All data are mean ± SD. *p < 0.05 vs. LVAD support and nonfailing hearts.