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Figure 2 This box plot diagram depicts the difference in automated border detection-derived left ventricular (LV) parasternal short-axis fractional area of change between the patients (pts) (n = 24) and control subjects (n = 33). Data contained within the box represents the 25th to 75th percentile values, with the thick line depicting the median value. The bars represent the maximal and minimal data points, excluding outliers. The LV area shortening appears diminished in the young patients who had long-term right ventricle apical pacing (mean age 19.5 years, mean follow-up 9.5 years) versus the age- and body surface area-matched control subjects (52 ± 10 vs. 60 ± 6, p = 0.002).