Outcome of Community- versus Hospital-Acquired Intra-Abdominal Infections in Intensive Care Unit: a Retrospective Study
Background: To compare patients hospitalised in the intensive care unit (ICU) after surgery for community-acquired intra-abdominal infection (CA-IAI) and hospital-acquired intra-abdominal infection (HA-IAI) in terms of mortality, severity and complications.Methods: Retrospective study including all patients admitted to 2 ICUs within 48 hours of undergoing surgery for peritonitis.Results: 226 patients were enrolled during the study period. Patients with CA-IAI had an increased 28-day mortality
... 28-day mortality rate compared to those with HA-IAI (30% vs 15%, respectively (p = 0.009)). At 90 days, the mortality rates were 36.7% and 37.5% in the CA-IAI group and HA-IAI group, respectively, with a similar APACHE II score on admission (median: 21 [15 – 25] vs. 21 [15 - 24] respectively, p = 0.63). The patients with HA-IAI had prolonged ICU and hospital stays (median: 17 [7 – 36] vs. 6[3 – 12] days, p < 0.001 and 41 [24 – 66] vs. 17 [7 – 32] days, p = 0.001), and experienced more complications (reoperation and reintubation) than those with CA-IAI. Conclusion: CA-IAI group had higher 28-day mortality rate than HA IAI group. Mortality was similar at 90 days but those with HA-IAI had a prolonged ICU and hospital stay. In addition, they developed more complications.