Surgical Detail
Intraoperative differences before propensity matching included males
having a longer time spent on cardiopulmonary bypass and a longer time
with a cross-clamp placed (Table 1). These differences were not present
after propensity matching. There were no significant differences in the
types of valve replacements used with 79.8% of males and 77.2% of
females receiving tissue valves (Table 1).