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Implementation of a Permeable Membrane Insert-based Infection System to Study the Effects of Secreted Bacterial Toxins on Mammalian Host Cells
Published on: August 19, 2016
[Group A beta-hemolytic streptococcal toxic shock]
Teresa Pontes1, Henedina Antunes
1Serviço de Pediatria, Hospital de São Marcos, Braga.
Abstract:
In the last years has been observed an increased incidence of invasive group A beta-hemolytic streptococcal infections, including the toxic shock syndrome. The most common portal of entry is the skin and mucous membranes. The toxic shock syndrome can occurred as a rare complication of pharyngitis. The association between varicella and the use of nonsteroidal antiinflammatory drugs with necrotizing fasciitis by Streptococcus pyogenes has been discussed without reach at consensus, but some authors disapproved the use of nonsteroidal antiinflammatory drugs in this viral infection. The authors reported the clinical case of a 12 year old adolescent, that 15 days after the diagnosis of mononucleosis infectious confirmed by serology and treated with ibuprofen, was internment by streptococcal toxic shock syndrome with rhabdomyolysis, hepatitis, cellulitis of the leg, arthritis of the knee and pleural effusion. Therapeutics was made with penicillin G and clindamycin. We present this case for the severity of the clinical situation and for the questions that rise.
Insights
Group A Streptococcus infections are rising. A case highlights severe toxic shock syndrome in an adolescent after mononucleosis and ibuprofen use, emphasizing potential risks.
Area of Science:
- Infectious Diseases
- Bacteriology
- Clinical Medicine
Background:
- Invasive group A beta-hemolytic Streptococcus (Streptococcus pyogenes) infections, including toxic shock syndrome (TSS), show increasing incidence.
- Skin and mucous membranes are common entry points for Streptococcus pyogenes.
- Toxic shock syndrome can be a rare complication of pharyngitis.
Observation:
- The association between varicella (chickenpox) and nonsteroidal anti-inflammatory drug (NSAID) use with necrotizing fasciitis caused by Streptococcus pyogenes is debated.
- Some studies suggest NSAID use may be contraindicated in varicella due to potential risks.
- A clinical case involved a 12-year-old adolescent diagnosed with mononucleosis, treated with ibuprofen, who later developed severe streptococcal toxic shock syndrome.
Findings:
- The adolescent patient presented with rhabdomyolysis, hepatitis, cellulitis, arthritis, and pleural effusion secondary to Streptococcus pyogenes infection.
- Treatment involved penicillin G and clindamycin.
- This case underscores the potential severity and complex presentation of invasive Streptococcus pyogenes infections.
Implications:
- The case raises questions about the potential role of prior viral infections and NSAID use in the development of severe invasive Streptococcus pyogenes disease.
- Highlights the importance of considering invasive bacterial infections in patients with severe symptoms following viral illnesses, especially after NSAID exposure.
- Emphasizes the need for continued vigilance and research into risk factors and management of invasive group A Streptococcus infections.
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