%0 Journal Article
%A Álvaro Afonso, Francisco Javier
%A García Álvarez, Yolanda
%A Tardaguila García, Aroa
%A García Madrid, Marta
%A López Moral, Mateo
%A Lázaro Martínez, José Luis
%T Bacterial Diversity and Antibiotic Resistance in Patients with Diabetic Foot Osteomyelitis
%D 2023
%@ 2079-6382
%U https://hdl.handle.net/20.500.14352/73364
%X This study analysed the bacterial diversity, antibiotic susceptibility, and resistance in patients with complications of diabetic foot osteomyelitis (DFO). A retrospective observational study was carried out between September 2019 and September 2022 and involved 215 outpatients witha diagnosis of DFO at a specialized diabetic foot unit. A total of 204 positive bone cultures were isolated, including 62.7% monomicrobial cultures, and 37.3% were formed with at least two microorganisms. We observed that Proteus spp., Coagulase-negative staphylococci (CoNS), Staphylococcusaureus, Pseudomonas aeruginosa, Escherichia coli, and Corynebacterium were the most frequently isolated microorganisms and accounted for more than 10% of the DFO cases. With stratification by Grampositive (GP) and Gram-negative (GN) bacteria, we observed that 91.6% of cultures presented at leastone GP bacteria species, and 50.4% presented at least one GN bacteria species. The most common GP species were CoNS (29%), S. aureus (25.8%), and Corynebacterium spp. (14%). The most frequent GN species consisted of Proteus spp. (32%), P. aeruginosa (23.3%), and E. coli (17.5%). The main antibioticswith resistance to GP-dominated infections were penicillins without �-lactamase inhibitor, and those in GN-dominated infections were sulfonamides and penicillins without �-lactamase. Significant differences were not observed in mean healing time in DFU with acute osteomyelitis (12.76 weeks(4.50;18)) compared to chronic osteomyelitis (15.31 weeks (7;18.25); p = 0.101) and when comparing cases with soft tissue infection (15.95 (6;20)) and those without such an infection (16.59 (7.25;19.75), p = 0.618). This study shows that when treatment of DFO is based on early surgical treatment, thetype of DFO and the presence of soft infection are not associated with different or worse prognoses.
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