Time from admission to initiation of surgery and 60-day outcome. All patients were classified into 2-hour groups (from 0 to 12 hours) from admission to initiation of surgery. The number of survivors and non-survivors and the survival rate on day 60 are shown. As the time to initiation of surgery increased, survival rate decreased and the survival rate was 0% in the group that waited more than 6 hours. There were no patients who needed more than 10 hours to initiate surgery.