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© Therese Couderc, Marc Lecuit
Publication : The Journal of infection

Listeria monocytogenes-associated endovascular infections: A study of 71 consecutive cases

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in The Journal of infection - 31 Jul 2019

Shoai-Tehrani M, Pilmis B, Maury MM, Robineau O, Disson O, Jouvion G, Coulpier G, Thouvenot P, Bracq-Dieye H, Valès G, Leclercq A, Lecuit M, Charlier C,

Link to Pubmed [PMID] – 31376457

J. Infect. 2019 Jul;

BACKGROUND: Listeria monocytogenes-associated endovascular infections are not well characterized.

METHODS: Retrospective study of 71 culture-proven cases reported to the French National Reference Center for Listeria from 1993 to 2018.

RESULTS: Seventy-one cases were identified: 42 with vascular aneurysms/prosthetic infections, 27 with endocarditis, 2 with both. Fifty-eight were men (82%); median age was 75 years [46-92]; 93% reported co-morbidities (66/71), including 50% with immunosuppressive conditions. Vascular infections consisted of infected aneurysms (68%) or prosthetic graft infections (32%); vascular rupture was reported in 25/42 (60%). Tissue samples grew L. monocytogenes in 98% (43/44) and blood cultures in 64% (27/42). Endocarditis cases involved prosthetic or native valves or intracardiac devices in respectively 62% (18/29), 28% (8/29) and 10% (3/29). Infected valves were aortic (62%, 16/26), mitral (31%, 8/26) or both (8%, 2/26); 38% patients required surgery; 45% displayed heart failure; 17% had concomitant neurolisteriosis. In-hospital mortality in vascular infections was 12% (5/42) and 41% (12/29) for Lm-associated endocarditis.

CONCLUSIONS: Endovascular listeriosis is a rare but severe infection. It manifests as vascular infections and endocarditis, mostly in older patients with vascular or cardiac valve prosthetic devices and co-morbidities. Mortality in Lm-associated endocarditis is twice higher than with other pathogens, requiring prompt recognition and treatment.

https://www.ncbi.nlm.nih.gov/pubmed/31376457