Otitis externa following aural irrigation linked to instruments contaminated with Pseudomonas aeruginosa

Summary Background The incidence of acute otitis externa, an infection of the external auditory canal, in general practitioners’ (GP) practices in The Netherlands is about 14 per 1000 patients per year. In early 2010, one of the authors noted that some of the otitis externa patients in his GP practi...

Full description

Saved in:
Bibliographic Details
Published in:The Journal of hospital infection 2013-07, Vol.84 (3), p.222-226
Main Authors: Bruins, M.J, Wijshake, D, de Vries-van Rossum, S.V, Klein Overmeen, R.G.J, Ruijs, G.J.H.M
Format: Article
Language:English
Subjects:
Aural irrigation
Biological and medical sciences
Cerumen removal
Disinfection - methods
Durable Medical Equipment - microbiology
Ear syringing
Ear, auditive nerve, cochleovestibular tract, facial nerve: diseases, semeiology
Equipment Contamination
General practice
Humans
Infectious Disease
Infectious diseases
Medical sciences
Netherlands
Non tumoral diseases
Otitis externa
Otitis Externa - etiology
Otitis Externa - microbiology
Otorhinolaryngology. Stomatology
Pseudomonas aeruginosa
Pseudomonas aeruginosa - isolation & purification
Pseudomonas Infections - etiology
Pseudomonas Infections - microbiology
Therapeutic Irrigation - adverse effects
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Summary Background The incidence of acute otitis externa, an infection of the external auditory canal, in general practitioners’ (GP) practices in The Netherlands is about 14 per 1000 patients per year. In early 2010, one of the authors noted that some of the otitis externa patients in his GP practice had undergone cerumen removal by ear syringing a few weeks earlier. Bacterial cultures of samples taken from the instruments used showed contamination of an ear syringe by Pseudomonas aeruginosa . From then on, P. aeruginosa isolates from patients' ears were stored in the laboratory. Aim It was assessed whether cross-contamination with P. aeruginosa between patients in the same GP practice could occur through the use of contaminated ear lavage instruments. Methods From 17 GP practices, the otolaryngology Outpatient Department and the Out-of-Hours GP Service, instruments used for examining and cleaning the outer ear were swabbed. Strains of P. aeruginosa cultured from the instruments were genotyped together with isolates of patients registered in the same practice. Findings In four practices where contaminated instruments were found, genotyping showed similarity between P. aeruginosa strains isolated from a patient and the ear syringe, and/or between strains of different patients in the same practice. Conclusions Transmission of P. aeruginosa from ear lavage instruments to patients appears to occur with otitis externa as a result. Together with the Infection Control Unit of our hospital we have formulated recommendations for the appropriate cleaning, disinfection and storage of re-usable ear lavage instruments for the GP practices to implement.
ISSN:0195-6701
1532-2939
DOI:10.1016/j.jhin.2013.04.010