Echocardiographic Features in Bartonella Endocarditis: A Case Series

Orathai Pachirat, Sompop Prathanee, George Watt

Abstract


Bartonella spp. are emerging pathogens that are reported as the cause of blood culture-negative endocarditis ( BCNE). However, echocardiographic features and assessment of this endocarditis remains unclear. Four patients with B. henselae endocarditis were identified. All patients had underlying cardiac conditions: rheumatic heart disease in three, congenital heart disease in one. Evidence of vegetations was found on the aortic valve in all patients with large, highly mobile vegetations and severely destroyed valves demonstrated by the transthoracic echocardiogram leading to severe aortic regurgitation and heart failure. The vegetations were found on both the aortic and the mitral valve in two patients. All patients had negative blood cultures and underwent urgent valves replacement due to heart failure with good clinical outcome. The diagnosis of B. henselae endocarditis is based mainly on clinical suspicion in BCNE, specific serologic testing and polymerase chain reaction (PCR) detection on excised valve tissue.




Cardiol Res. 2018;9(2):116-119
doi: https://doi.org/10.14740/cr595w


Keywords


Infective endocarditis; Bartonella endocarditis; Echocardiographic features; Blood culture negative endocarditis; PCR; Bartonella henselae

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