Key result
Legionella pneumonia is linked to CMR-confirmed acute myocarditis in a recent case report.
Case Report (n=1)
Highlights the potential for Legionella pneumonia to cause acute myocarditis, which can mimic acute coronary syndrome and present with heart failure.
Answers are grounded in this paper and cite their sources.
May prompt infectious myocarditis evaluation in pneumonia with MINOCA-like presentation; single case leaves causal role and management implications open.
A 55-year-old previously healthy woman, hospitalized in the intensive care unit with Legionella pneumonia (Panel A, black arrow), presented sudden onset dyspnoea and chest pain. Physical exam revealed signs of heart failure, and electrocardiogram showed 2 mm inferoposterior ST-segment elevation with 1.5 mm aVR ST-segment depression (Panel B). An urgent invasive coronary angiography was performed and showed non-obstructive coronary disease. Transthoracic echocardiography showed a moderate left ventricular dysfunction, and serum biomarkers of myocardial injury were markedly elevated. Due to all these findings and raising the suspicion of acute myocarditis, a cardiac magnetic resonance was scheduled demonstrating an area of oedema in the anterior, anterolateral, and inferior medium segments and anterior and inferior apical segments (Panel C, grey arrows), as well as late subepicardial and intramyocardial gadolinium enhancement in the same areas (Panel D, grey arrows), thus confirming the diagnosis of myocarditis. Anti-inflammatory...
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Irigaray et al. (2022) conducted a case report in Legionella pneumonia and acute myocarditis (n=1). Legionella pneumonia was evaluated. A 55-year-old woman with Legionella pneumonia developed acute myocarditis, confirmed by cardiac magnetic resonance imaging showing oedema and late gadolinium enhancement.
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