Bartonella and Coxiella infections presenting as systemic vasculitis: case series and review of literature - Sorbonne Université
Journal Articles Rheumatology Year : 2022

Bartonella and Coxiella infections presenting as systemic vasculitis: case series and review of literature

Maxime Beydon
Christophe Rodriguez
Alexandre Cez
  • Function : Author
Olivier Fain
Carole Philipponnet
Xavier Puéchal
Loïc Guillevin
Benjamin Terrier

Abstract

Objectives Coxiella and Bartonella spp. display particular tropism for endothelial or endocardial tissues and an abnormal host response to infections with induced autoimmunity. We aimed, through a case series combined with a comprehensive literature review, to outline characteristics of Coxiella and Bartonella infections presenting as systemic vasculitis. Methods We retrospectively included cases of definite Coxiella and Bartonella infections presenting with vasculitis features and performed a comprehensive literature review. Results Six cases of Bartonella infections were added to 18 cases from literature review. Causative pathogens were mainly B. henselae. Bartonella infection mimicked ANCA-associated vasculitis in 83% with PR3-ANCA and presented as cryoglobulinaemic vasculitis in 8%. GN was present in 92%, and 88% had endocarditis. Complement fractions were low in 82% and rheumatoid factor positive in 85%. Kidney biopsies showed cell proliferation, mostly crescentic, with pauci-immune GN in 29%. Outcome was favourable, with the use of antibiotics alone in one-third. Five cases of Coxiella infections were added to 16 from literature review. Sixteen had small-vessel vasculitides, mainly cryoglobulinaemia vasculitis in 75%. One patient had polyarteritis nodosa-like vasculitis and four large-vessel vasculitis. Outcome was good except for one death. A highly sensitive next generation sequencing analysis on three Coxiella- and two Bartonella-related vasculitides biopsies did not find any bacterial DNA. Conclusion Coxiella and Bartonella are both able to induce vasculitis but display distinct vasculitis features. Bartonella mimics PR3-ANCA-associated vasculitis in the setting of endocarditis, whereas Coxiella may induce vasculitis involving all vessel sizes.
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Dates and versions

hal-03474284 , version 1 (10-12-2021)

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Maxime Beydon, Christophe Rodriguez, Alexandre Karras, Alexandre Cez, Cédric Rafat, et al.. Bartonella and Coxiella infections presenting as systemic vasculitis: case series and review of literature. Rheumatology, 2022, 61 (6), pp.2609-2618. ⟨10.1093/rheumatology/keab691⟩. ⟨hal-03474284⟩
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