Articles: streptococcus-mitis-isolation-purification.
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J Infect Dev Ctries · Jan 2016
Case ReportsNecrotizing fasciitis due to Streptococcus mitis caused by accidental human bite.
Human bite wounds are more prone to infection than animal bites, which may cause necrotizing soft tissue infections such as myositis, fasciitis. Both aerobic and anaerobic microorganisms may be responsible, including Streptococcus spp., Staphylococcus aureus, Peptostreptococcus spp. Necrotizing fasciitis is characterized by serious tissue destruction and systemic toxicity with high morbidity and mortality. ⋯ If the infection signs and symptoms develop, rapid diagnosis, appropriate antibiotic and surgical therapy should be administered immediately. Streptococcus mitis is a viridans streptococcus, usually known as a relatively benign oral streptococcus. To our knowledge, this is the first necrotizing fasciitis case due to Streptococcus mitis after human bite.
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Streptococcus viridans is usually considered to be nonpathogenic in healthy patients. Some strains become penicillin-resistant and cause life-threatening infections in immuno-compromised patients. We report an immunocompetent boy who had community-acquired S. viridans pneumonia that was resistant to penicillin. Clinicians should note local patterns of virulence and antibiotic resistance in S. viridans and adjust treatment strategies accordingly.
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Gluteal artery aneurysms are rare and mostly secondary to blunt or penetrating trauma. As an absolute rarity, we report an exceptional presentation of bilateral mycotic aneurysm of the superior gluteal artery in a 16-year-old boy associated with bacterial endocarditis. The left pseudoaneurysm was ruptured and treated using open surgery; 1 week later, the right location was successfully treated by embolization.