Lets Talk About a New Urogenital Pathogen: Actinomyces Neuii

Abstract

Gemma Jiménez Guerra

In traditional bacterial cultures of clinical samples, the presence of coryneform has often been considered as local flora, but it is well known that in patients with predisposing factors, these micro-organisms may have a pathogenic implication that would be underestimated. Among other causes, this is due to the difficulty in making an adequate identification to species level. The advent of mass spectrometry in clinical laboratories has greatly facilitated this task. We describe a clinical case of Actinomyces naoi urinary tract infection in an elderly multipath logical patient with urinary catheterization.

For this purpose, a descriptive clinical-microbiological study of A. naoi as a pathogen was performed. It was identified by Maldi-TOF mass spectrometry. The clinical course was satisfactory after antibiotic treatment with amoxicillin/clavulanic acid.

In urine cultures, if there is a significant monomicrobial count of choryneform micro-organisms, we should rule out micro- organisms potentially involved in infection before reporting the result as local microbiota.

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