Stenotrophomonas spp. is a genus of motile, Gram-negative, aerobic rod-shaped bacteria, which includes at least several species. They belong to the group of non-fermenting bacteria (non-fermenters).
Stenotrophomonas spp., particularly the dominant species stenotrophomonas maltophilia, cause increased nosocomial infection, particularly in patients who have been prescribed antibiotics for a prolonged period. The following diseases, among others, can be caused by this pathogen:
Infections of the skin and soft tissues
Stenotrophomonas spp. are distributed worldwide, particularly in the soil, sewage, and plants. Some of them are known biofilm formers.
Relevance of pathogen in transmission in endoscopy
Gastroenterology: Not relevant
Ear, nose, and throat: Not relevant
Urology: Not relevant
Relevance for endoscope surveillance
High concern organism
Transmission occurs primarily through contaminated water.
Stenotrophomonas spp. can also be spread and transmitted via water in healthcare facilities. The water used for final rinsing of endoscopes must therefore be microbiologically controlled.
Resistance to antibiotics
Stenotrophomonas spp. (particularly stenotrophomonas maltophilia) are resistant to numerous antibiotics, including beta-lactams, aminoglycosides, and quinolones.
Cosgrove S. et al. Caveat emptor: the role of suboptimal bronchoscope repair practices by a third-party vendor in a pseudo-outbreak of pseudomonas in bronchoalveolar lavage specimens. Infect Control Hosp Epidemiol 2012; 33: 224–229.
Hygienemaßnahmen bei Infektionen oder Besiedlung mit multiresistenten gramnegativen Stäbchen, Empfehlung der Kommission für Krankenhaushygiene und Infektionsprävention (KRINKO) beim Robert Koch-Institut (RKI), Bundesgesundheitsbl 2012 · 55:1311–1354.
Ryan, R et al. The versatility and adaptation of bacteria from the genus Stenotrophomonas, Nat Rev Microbiol 7, 514–525 (2009).
Wang Y. et al. Antimicrobial Resistance in Stenotrophomonas spp. Microbiol Spectr 2018 Jan;6(1).