Primary Outcome
Analysis of the LVEF data was performed for the entire dataset as well
as for each implantation location group (Figure 1). The mid septum group
shows the greatest variation, while the high septum placement had the
least variation, although that group also had the lowest population
size. There are a few data points on the higher and lower LVEF’s that
could be considered outliers in this dataset. Therefore, secondary
analysis was run with those points removed to see if results were any
different, but the results were not altered. There was one subject whose
age was 14 and whose ejection fractions before and after were 76 and 77
respectively. Although this patient’s LVEF was dissimilar to the rest of
the study population which consisted of elderly adults, the focus of
this study was to determine the incidence of PICM after LP implantation,
so the patient was included.