Key result
Antibiotics, colchicine, and indomethacin resolve rare nonrheumatic Streptococcus pyogenes myopericarditis.
Why the study?
Nonrheumatic Streptococcus pyogenes myopericarditis can mimic viral myocarditis, creating diagnostic and treatment challenges.
Case Report (n=1)
Nonrheumatic Streptococcus pyogenes myopericarditis can clinically and electrocardiographically mimic viral myocarditis, highlighting the importance of empirical antibiotic therapy while awaiting cultures.
May support empirical antibiotics plus colchicine and indomethacin in nonrheumatic S. pyogenes myopericarditis; hypothesis-generating and requires prospective validation.
A 43-year-old healthy man presented with acute left-sided chest pressure after 2 days of exudative pharyngitis. Electrocardiography results showed diffuse ST-segment elevation and PR depression, and high-sensitivity troponin levels increased from 384 ng/L to 3297 ng/L. The findings of coronary angiography, performed urgently, were unrevealing. A rapid streptococcal antigen test was negative; however, pharyngeal culture grew Streptococcus pyogenes. The administration of amoxicillin, colchicine, and indomethacin led to clinical recovery. This case highlights nonrheumatic S pyogenes myopericarditis as a mimic of viral myocarditis and underscores the importance of initiating empirical antibiotics in this clinical setting while awaiting culture results.
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Gillis et al. (2026) conducted a case report in Acute Nonrheumatic Streptococcus pyogenes Myopericarditis (n=1). amoxicillin, colchicine, and indomethacin was evaluated on clinical recovery. Administration of empirical antibiotics, colchicine, and indomethacin led to clinical recovery in a patient with nonrheumatic Streptococcus pyogenes myopericarditis.
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