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Figure 3 Changes in left ventricular end-diastolic volume index (LVEDVI) after aortic valve replacement in study groups of patients with chronic severe aortic regurgitation (solid squares = group A patients; solid triangles = group B patients). Group A and B patients have similar preoperative (Pre-op) values. After valve replacement, LVEDVI decreases significantly both in group A (p < 0.001) and group B (p < 0.001). After surgery (Post-op), significantly higher values of LVEDVI are present in group B (p < 0.001) and are still present at five-year (p < 0.001) and 10-year follow-up study (p < 0.001).