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Pacemaker Infection and Parvimonas micra-Induced Prosthetic Aortic Valve Endocarditis With Periannular Abscess: A
Monique Boukobza1, Pierre Aubry2, Jean-Pierre Laissy1
1Radiology, Public Assistance-Paris Hospitals, Bichat-Claude Bernard Hospital, Paris, FRA.
Abstract:
A 59-year-old man was admitted for a prosthetic aortic valve (AV)infectious endocarditis (IE), attributed to the pacemaker and complicated by a circumferential periaortic circulating abscess, a severe aortic periprosthetic leak, and left-sided heart failure. Blood cultures were negative on hospital day 3. He underwent an emergent AV biological valve replacement, and 16S rRNA bacterial gene sequencing performed on AV tissue identified the microorganism as Parvimonas micra. We reviewed the 11 cases of Parvimonas micra IE previously described. Some features seem to be abnormally frequent in this context: history of prosthetic valve or cardiac device, pacemaker infection, periannular abscess, and chronic dental infection.
Insights
Parvimonas micra infectious endocarditis (IE) is rare but associated with prosthetic valves and cardiac devices. This case highlights the importance of considering this pathogen in patients with specific risk factors.
Area of Science:
- Cardiology
- Infectious Diseases
- Microbiology
Background:
- Infectious endocarditis (IE) poses significant risks, especially in patients with prosthetic valves or cardiac devices.
- Parvimonas micra is an uncommon pathogen implicated in IE, with limited case series available.
- Periannular abscess and pacemaker infections are serious complications of IE.
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