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Case Reports
. 2023 Feb 28:31:e01725.
doi: 10.1016/j.idcr.2023.e01725. eCollection 2023.

Endocarditis caused by Neisseria bacilliformis: a case report and review of literature

M Gavalda  1 , H Vilchez  2   3 , M L Martin  2 , E Ruiz  4 , M A Ribas  2 , M Riera  2   3
Affiliations
Case Reports

Endocarditis caused by Neisseria bacilliformis: a case report and review of literature

M Gavalda et al. IDCases. .

Abstract

A 58-years-old male with history of previous aortic prosthetic endocarditis caused by Enterococcus faecalis was admitted due to dyspnoea and fever. The two sets of blood cultures were positive for Neisseria bacilliformis. Transoesophageal echocardiography did not demonstrate endocarditis signs, but PET-CT scan showed active infection signs in the valvular aortic tube and possible infection in the aortic prosthetic valve. A six-week course of ampicillin was prescribed; gentamicin was added during the first two weeks. The patient continued a favourable clinical course. This is the 3rd described case of N. bacilliformis endocarditis and the first one in a prosthetic valve.

Keywords: Aortic endocarditis; Neisseria bacilliformis; Prosthetic valve endocarditis.

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Figures

Fig. 1
Fig. 1
PET-CT showed signs of active infection in the valvular aortic tube (SUVmax 4–4.46 in proximal segment of the tube) and possible infection in the aortic prosthetic valve (SUVmax 5.35 but there was interference due to suboptimal myocardial suppression). There were no signs of infection in the pacemaker or any other organ.
See this image and copyright information in PMC

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