Key result
Intravenous antibiotics and supportive care achieve full cardiac recovery in pneumococcal myopericarditis.
Why the study?
Pneumococcal myocarditis is an uncommon but under-recognized complication of invasive pneumococcal disease with limited clinical awareness and data.
Case Report (n=1)
No
This case highlights that Streptococcus pneumoniae can cause clinically significant myopericarditis even in young, immunocompetent individuals, which responds favorably to targeted antibiotics and standard heart failure therapy.
Pneumococcal myopericarditis may occur in immunocompetent adolescents; this case leaves open its incidence and need for routine cardiac evaluation.
Pneumococcal myocarditis is an uncommon complication of invasive pneumococcal disease, although experimental data suggest that cardiac involvement may be more frequent than clinically recognized. We describe the case of an 18-year-old immunocompetent male who developed community-acquired pneumonia complicated by myopericarditis. Streptococcus pneumoniae was isolated from blood cultures. Transthoracic echocardiography revealed a reduced left ventricular ejection fraction (40-45%) with pericardial effusion, and cardiac MRI confirmed functional impairment without evidence of necrosis or inflammation. The patient was treated with a 14-day course of intravenous antibiotics alongside supportive care, resulting in full clinical and cardiac recovery. This case emphasizes the under-recognized risk of myocarditis in the context of pneumococcal pneumonia, underscores the importance of routine cardiac evaluation, and highlights the need for heightened clinical awareness to ensure timely diagnosis and management.
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Tritar et al. (2025) conducted a case report in Pneumococcal Myocarditis (n=1). Intravenous antibiotics and supportive care was evaluated on Clinical and cardiac recovery. A 14-day course of intravenous antibiotics alongside supportive care resulted in full clinical and cardiac recovery in an 18-year-old male with pneumococcal myopericarditis.
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