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Figure 3 This box plot diagram shows reduced global left ventricular (LV) function, expressed as the Doppler flow-derived myocardial performace index (MPI), in the paced patient (pts) group versus the control group. 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. A higher Doppler MPI value correlates with reduced combined (systolic and diastolic) ventricular function. The Doppler MPI was increased in the pacemaker group versus the control group (46 ± 13 vs. 34 ± 8, p = 0.005).
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