Septic arthritis of native hip joint by Staphylococcus lugdunensis: a case report

Abstract Staphylococcus lugdunensis is a rare virulent coagulase-negative staphylococcus (CoNS) that behaves similarly to Staphylococcus aureus in causing deep abscesses, skin and soft tissue infections, and central nervous system infections. Additionally, there can be certain blood stream infections including sepsis, septic shock, toxic shock syndrome, and endocarditis complicated by embolic events. Reports of septic arthritis of a native joint associated with this organism have been infrequent, justifying the presentation and discussion of this case.

A Case of Onychia and Paronychia by Staphylococcus lugdunensis / 대한피부과학회지

Staphylococcus lugdunensis is part of the normal human skin flora and has the ability to establish primary infection in deep skin and vascular infections. A 41-year-old male presented with brittle, thick, crusted right thumb nail with yellow to brown discoloration and erythematous edema around the nail fold. We identified S. lugdunensis by bacterial culture for the pus. The lesion was improved after 2 months treatment of oral cefditoren and clarithromycin. We report a case of onychia and paronychia caused by S. lugdunensis.

Staphylococcus em um hospital de Porto Alegre (RS) / Staphylococcus in a hospital of Porto Alegre (RS)

Este estudo avaliou a prevalência de Staphylococcus isolados durante um ano em diferentes espécimes clínicos de pacientes internados no Hospital Divina Providência, Porto Alegre, RS. Quanto ao Staphylococcus aureus resistente à oxacilina (MRSA), a taxa mais alta foi observada nos pacientes que estavam internados nos andares (HDP), representando mais que o dobro das infecções do Centro de Terapia Intensiva (CTI). Os Staphylococcus coagulase negativo (SCN) são freqüentes contaminantes, mas constatou-se um aumento de sua participação como agente etiológico em bacteremias, tendo sido isolado em 52,6% das amostras de sangue. Umachado importante foi que, entre todos os SCN isolados, 81,4% apresentaram resistência à oxacilina (MRSCN). Faz-se importante a identificação das espécies de SCN uma vez que é possível o isolamento de S. lugdunensis, uma bactéria que deve ser consideradaequivalente ao S. aureus e também realizar a pesquisa de resistência a oxacilina de modo adequado. Assim, o tratamento pode ser conduzido de modo correto, sem subestimar a prevalência deste Staphylococcus coagulase negativo e a resistência a oxacilina.

This study evaluated the prevalence of Staphylococcus isolates during one year in samples of patients of the Divina Providencia Hospital, Porto Alegre, RS. The rate highest of MRSA was observed in the patients who were interned in the floors (HDP), representing more than the double of the infections of the CTI. The SCN are more frequent as contaminants and evidenced an increase of its participation as etiologic agent, mainly, in blood infection being isolated in 52,6% of the samples of blood. An important finding was that, between all the isolates SCN, 81,4% of them had presented resistance to the oxacilin (MRSCN). The identification of the species of SCN becomes important a time that is possible the isolation of S. lugdunensis, a bacterium that must be considered equivalent to the S. aureus. Thus, the treatment can be lead in adjusted way, without to devaluate the prevalence of this Staphylococcus coagulase negative.