Key result
Intravenous antibiotics successfully treat isolated right atrial neutrophilic necrotising myocarditis in a case report.
Case Report (n=1)
No
Hypothesis-generating for isolated right atrial necrotising myocarditis in immunocompromised patients with elevated ASO; further cases needed to clarify etiology and management.
A 37-year-old immunocompromised woman was admitted with palpitations, fevers and myalgias. An echocardiogram demonstrated a mass in the right atrial walls and interatrial septum. Endovascular biopsy of the myocardium revealed neutrophilic necrotising myocarditis isolated to the right atrium. Multiple blood, urine and stool cultures were negative but a high anti-streptolysin O antibody titre was detected. The combination of these findings led to the working diagnosis of necrotising myocarditis. Without a positive culture, it was not possible to definitively state the cause of this condition. She was treated with intravenous antibiotics and continued to improve physically and biochemically on discharge.
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Carlson et al. (2021) conducted a case report in Right atrial neutrophilic necrotising myocarditis (n=1). Intravenous antibiotics was evaluated on Clinical and biochemical improvement. Intravenous antibiotics led to physical and biochemical improvement in a 37-year-old immunocompromised woman (n=1) with isolated right atrial neutrophilic necrotising myocarditis.
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