Pressure ulcer as a reservoir of multiresistant Gram-negative bacilli: risk factors for colonization and development of bacteremia
Braz. j. infect. dis
;
21(2): 171-175, Mar.-Apr. 2017. tab
Article
in English
| LILACS
| ID: biblio-1039185
ABSTRACT
Abstract The purpose of this study was to identify the risk factors that predispose patients who are hospitalized with pressure ulcers (PUs) colonized by Gram-negative bacilli (GNB) to develop bacteremia. In addition, we also detected main phenotypes of resistance in infected and uninfected PUs. A prospective cohort study was conducted at the Clinical Hospital of the Federal University of Uberlândia including patients with Stage II or greater PUs, colonized or not with GNB, from August 2009 to July 2010. Infected ulcers were defined based on clinical signs and on positive evaluation of smears of wound material translated by a ratio of polymorphonuclear cells to epithelial cells ≥21, after Giemsa staining. A total of 60 patients with Stage II PUs were included. Of these 83.3% had PUs colonized and/or infected. The frequency of polymicrobial colonization was 74%. Enterobacteriaceae and GNB non-fermenting bacteria were the most frequent isolates of PUs with 44.0% of multiresistant isolates. Among patients who had infected PUs, six developed bacteremia by the same microorganism with a 100% mortality rate. In addition, PUs in hospitalized patients were major reservoir of multiresistant GNB, also a high-risk population for the development of bacteremia with high mortality rates.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Gram-Negative Bacterial Infections
/
Bacteremia
/
Pressure Ulcer
/
Gram-Negative Bacteria
Type of study:
Etiology study
/
Observational study
/
Prognostic study
/
Risk factors
Limits:
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Male
Language:
English
Journal:
Braz. j. infect. dis
Journal subject:
Communicable Diseases
Year:
2017
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Federal de Uberlândia/BR
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