Outcome
Group A 2009–2012 (n=375) Group B 2013–2016 (n=322)
p-Value
Mortality (30 days) 2 (0.5%) 1 (0.3%) .7
Renal failure 3 (0.8%) 2 (0.6%) .7
Bleeding 4 (1.1%) 3 (0.9%) .8
Infection 2 (0.5%) 1 (0.3%) .7
Postoperative length of stay, days 4.0/5.0/7.0 3.0/4.5/7.0 .02