Postoperative outcomes
Postoperative outcomes are summarized in Table 3. Operative mortality was 9.4% among males and 13.8% among females, though this was not a statistically significant difference (p=0.098). Males had a significantly higher rate of ≥ moderate residual aortic insufficiency and lower 1-month follow-up ejection fraction than females. Females had a longer duration of postoperative mechanical ventilation than males did. Rates of pneumonia, stroke, new-onset renal failure requiring dialysis, and re-exploration for bleeding were comparable between groups. Postoperative length of stay was also comparable between groups.