Laupland KB, Paterson DL, Stewart AG, Edwards F, Harris PNA. Sphingomonas paucimobilis bloodstream infection is a predominantly community-onset disease with significant lethality.
Int J Infect Dis 2022;
119:172-177. [PMID:
35398302 DOI:
10.1016/j.ijid.2022.03.060]
[Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 03/30/2022] [Accepted: 03/31/2022] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND
Small case series and reports suggest that Sphingomonas paucimobilis is predominantly a cause of nosocomial bloodstream infections (BSI) with very low associated mortality. Our objective was to describe the epidemiology and outcome of Sphingomonas species BSI in a large Australian population.
METHODS
All residents of Queensland Australia with BSI due to Sphingomonas species identified within the publicly funded system during 2000-2019 were included.
RESULTS
A total of 282 incident episodes of Sphingomonas species BSI were identified for an age- and sex-adjusted incidence of 3.2 per million population annually. Incidence rates were highest in the tropical regions of the state. Most (94%) of the isolates were confirmed as Sphingomonas paucimobilis. Seventy-seven percent of the infections were of community-onset of which 48% were community-associated and 30% were healthcare-associated. The very young and old and males were at highest risk. Patients with community-associated disease were on average younger, had fewer co-morbidities, and were less likely to have polymicrobial infections. At least one comorbidity was identified in 62% with malignancy, diabetes, and lung disease most prevalent. The overall all cause 30-day case-fatality rate was 6%.
CONCLUSION
Sphingomonas paucimobilis BSI is a predominantly community-onset disease associated with a significant risk for death.
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