Enfermedades infecciosas y microbiología clínica
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Enferm. Infecc. Microbiol. Clin. · Nov 1990
[Nosocomial bacteremia caused by Serratia marcescens: analysis of 44 cases].
We have evaluated 44 cases of Serratia marcescens bacteremia (SB). Most took place in surgical services (57%) and the ICU (34%). In one occasion, the cases developed as an epidemic outbreak. ⋯ The most common serogroup was 0:5 (41%). 98% of strains were resistant to cephalothin, 78% to ampicillin and 29% to tobramycin. The mortality rate was 39% and the most common cause of death was septic shock. The factors which adversely influenced prognosis were as follows, in order of decreasing importance: leukocytosis, thrombopenia, associated gram-positive infection, age older than 65 years, "non-typable" serogroup, unknown portal of entry, epidemic case and septic shock.