Medicina (Buenos Aires)
versión On-line ISSN 1669-9106
BREZZO, Clarisa et al. Community-acquired methicillin-resistant Staphylococcus aureus disseminated disease. Medicina (B. Aires) [online]. 2006, vol.66, n.5, pp. 443-446. ISSN 1669-9106.
A 21 year old man, previously healthy, presented with subcutaneous nodes consistent with gummas. Ultrasonography disclosed multiple subcutaneous abscesses and images suitable with piomiositis, pleural and pericardium effusion. A puncture-aspirate with fine-needle was performed and produced purulent material, with isolate of Staphylococcus aureus. Antimicrobial susceptibility testing by disk diffusion showed resistant to cefalotin, erythromycin and clindamycin, and susceptibility to trimethoprim-sulfamethoxazole, ciprofloxacin and rifampicin. Methicilin-resistance was confirmed by Staphyslide agglutination testing (Biomérieux). The patient was treated with ciprofloxacin and rifampicin during four weeks, with a good clinical response. The frequency of CA-MRSA infections is increasing, and these are reported in patients without identified predisposing risks leading to failure on empiric therapy for community infections presumed to be due to staphylococcal agents.
Palabras clave : MRSA; CA-MRSA.