A prospective, multicenter case control study of risk factors for acquisition and mortality in Enterobacter species bacteremia

Spanish Network for Research in Infectious Diseases/Enterobacter spp. Bacteriemia Project group.[Background] Enterobacter is among the main etiologies of hospital-acquired infections. This study aims to identify the risk factors of acquisition and attributable mortality of Enterobacter bacteremia.[Results] The study included 285 cases and 570 controls. E. cloacae was isolated in 198(68.8%) cases and E. aerogenes in 89(31.2%). Invasive procedures (hemodialysis, nasogastric tube, mechanical ventilation, surgical drainage tube) and previous antibiotics or corticosteroids were independently associated with Enterobacter bacteremia. Its attributable mortality was 7.8%(CI95%2.7–13.4%), being dissimilar according to a McCabe index: non-fatal=3.2%, ultimately fatal=12.9% and rapidly fatal=0.12%. Enterobacter bacteremia remained an independent risk factor for mortality among cases with severe sepsis or septic shock (OR 5.75 [CI95%2.57–12.87], p<0.001), with an attributable mortality of 40.3%(CI95%25.7–53.3). Empiric therapy or antibiotic resistances were not related to the outcome among patients with bacteremia.[Conclusions] Invasive procedures, previous antibiotics and corticosteroids predispose to acquire Enterobacter bacteremia. This entity increases mortality among fragile patients and those with severe infections. Antibiotic resistances did not affect the outcome.This study was supported by the Instituto Carlos III, grant PS09/00916, Ministerio de Ciencia e Innovación, and the Plan Nacional I+D+i 2013-2016 and Instituto Carlos III, Subdirección General de Redes y Centros de Investigación Cooperativa, Ministerio de Ciencia, Innovación y Universidades, Spanish Network for Research in Infectious Diseases (REIPI, RD 16/0016/0001; RD 16/0016/0005; RD 16/0016/0007; RD 16/0016/0008; RD 16/0016/0009) – co – financed by European Development Regional Fund “A way to achieve Europe”, Operative program Intelligent Growth 2014-2020

CEV 2022 - 1st Spanish Congress on Videogames 2022

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