“…In this series, despite a higher prevalence of preexisting comorbidities in the redo group (Table 1), we were able to achieve excellent results with in-hospital mortality, stroke, and dialysis rates of 5% or less that were not statistically different from the de novo group (Table 4). Previously published series of redo root replacement show a perioperative mortality in the range of 0% to 12% [4,5,11,[15][16][17]19]; however, most of these studies were small and mixed with patients who were not "true" redo root replacements.…”