Abstract
AbstractThe clinical characteristics ofAlistipesbacteremia remain insufficiently described. Therefore, here, we retrospectively analyzed 13 cases ofAlistipesbacteremia at a tertiary care center to evaluate their clinical and microbiological characteristics. Ten patients were aged ≥ 65 years, and seven were female. Nine patients had comorbidities, including seven with solid tumors or hematological malignancies. Eleven patients presented with gastrointestinal symptoms. The isolates included fourAlistipes finegoldii, fourAlistipes onderdonkii, threeAlistipes putredinis, twoAlistipes indistinctus, and oneAlistipes ihumiiisolates. Ten available strains exhibited low minimum inhibitory concentrations against β-lactam/β-lactamase inhibitors and metronidazole, whereas they exhibited high minimum inhibitory concentrations for penicillin, ceftriaxone, and minocycline. Several strains harbored antimicrobial resistance genes, includingadeF,tet(Q),cfxA3,cfxA4, anderm(G). Twelve patients received β-lactam/β-lactamase inhibitors, and two elderly patients with solid tumors developed septic shock and died.Alistipesspecies can translocate from the gastrointestinal tract into the bloodstream, leading to severe infections.
Publisher
Cold Spring Harbor Laboratory