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. 2013 Jan;115(1):56-61.
doi: 10.1016/j.oooo.2012.08.445.

Retrospective study of microorganisms associated with vascular access infections in hemodialysis patients

Sandra D'Amato-Palumbo  1 , Andre A Kaplan, Richard S Feinn, Rajesh V Lalla
Affiliations

Retrospective study of microorganisms associated with vascular access infections in hemodialysis patients

Sandra D'Amato-Palumbo et al. Oral Surg Oral Med Oral Pathol Oral Radiol. 2013 Jan.

Abstract

Objective: The aim of this study was to assess microorganisms associated with vascular access-associated infections (VAIs) in hemodialysis patients, with respect to possible origin from the mouth.

Study design: A retrospective and comparative analysis of the microbes associated with VAI in hemodialysis patients treated during a 10-year period was performed with the Human Oral Microbiome Database (HOMD).

Results: Of 218 patient records identified, 65 patients collectively experienced 115 VAI episodes. The most common microorganisms involved were Staphylococcus aureus (49.6% of infections), Staphylococcus epidermidis (10.4%), Serratia marcescens (10.4%), Pseudomonas aeruginosa (9.6%), and Enterococcus faecalis/fecum (8.7%). None of these was found in ≥1% of HOMD clone libraries, indicating that they very rarely colonize the teeth or plaque.

Conclusions: Most VAIs were associated with microorganisms more likely to originate from other body sites than from the oral cavity. The risk of a VAI being caused by microorganisms originating from the oral cavity is very small.

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