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2018•The Thoracic and Cardiovascular Surgeon ReportsOpen access

Pulmonary Valve Prosthesis Endocarditis Caused By Coxiella burnetii

Jamila Kremer, Nico T. Mutters, Matthias Karck, Katharina Last

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Abstract

Background Coxiella burnetii is a gram-negative bacterium assigned to the family of Rickettsiaceae. Less than 1% of Q-fever infection leads to infective endocarditis (IE). Cases of reported pulmonary valve (PV) prosthesis endocarditis are scarce. Case Description A patient with a PV prosthesis endocarditis caused by Coxiella burnetii was seeking asylum in Germany. Prosthesis replacement was performed. All obtained blood cultures showed no growth as well as microbiological cultures of the prosthetic valve tissue. A polymerase chain reaction analysis on the explanted prosthesis detected DNA of Coxiella spp. Conclusion Diagnosing IE caused by Coxiella burnetii requires an interdisciplinary effort from both clinicians and microbiologists.

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Background Coxiella burnetii is a gram-negative bacterium assigned to the family of Rickettsiaceae. Less than 1% of Q-fever infection leads to infective endocarditis (IE). Cases of reported pulmonary valve (PV) prosthesis endocarditis are scarce. Case Description A patient with a PV prosthesis endocarditis caused by Coxiella burnetii was seeking asylum in Germany. Prosthesis replacement was performed. All obtained blood cultures showed no growth as well as microbiological cultures of the prosthetic valve tissue. A polymerase chain reaction analysis on the explanted prosthesis detected DNA of Coxiella spp. Conclusion Diagnosing IE caused by Coxiella burnetii requires an interdisciplinary effort from both clinicians and microbiologists.

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Available abstract

Background Coxiella burnetii is a gram-negative bacterium assigned to the family of Rickettsiaceae. Less than 1% of Q-fever infection leads to infective endocarditis (IE). Cases of reported pulmonary valve (PV) prosthesis endocarditis are scarce. Case Description A patient with a PV prosthesis endocarditis caused by Coxiella burnetii was seeking asylum in Germany. Prosthesis replacement was performed. All obtained blood cultures showed no growth as well as microbiological cultures of the prosthetic valve tissue. A polymerase chain reaction analysis on the explanted prosthesis detected DNA of Coxiella spp. Conclusion Diagnosing IE caused by Coxiella burnetii requires an interdisciplinary effort from both clinicians and microbiologists.

Key concepts: Coxiella burnetii, Q fever, Endocarditis, Prosthesis, Rickettsiaceae, Microbiology, Medicine, Infective endocarditis

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