A total of 2.530 procedures have been evaluated in this retrospective observational study. Two groups have been generated (pre-pandemic period and pandemic period), classified into scheduled and emergency surgery. The investigators determined age, type of surgery and specialty, hospital stay, destination at discharge including mortality and severity according to Diagnostic Related to Group (DRG) scale. The investigators have also determined the number of confirmed COVID-19 infections in patients who underwent surgery during these 2 periods and evaluated if the infection was due to a nosocomial infection (confirmation of the COVID-19 during the hospitalization period). Comparisons were made between subgroups: scheduled surgery performed during the 2 periods and emergency surgery performed during the 2 periods.
