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Colegio de Medicina Interna de México.

2025, Number 08

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Med Int Mex 2025; 41 (08)

Microorganisms associated with vascular access infections in hemodialysis and their antimicrobial susceptibility

Díaz JJ, Miranda AA, Ramos NJC, Serrano OR, Lugo MJA

Language: Spanish
References: 25
Page: 457-464
PDF size: 198.65 Kb.


ABSTRACT

Objetive: To evaluate the prevalence of infectious agents and antimicrobial susceptibility in patients with vascular access-related infections.
Materials and Methods: This was a clinical, epidemiological, observational, retrospective, and cross-sectional study. We reviewed the clinical records and laboratory data of patients who underwent hemodialysis at the IMSS Hospital de Especialidades 2 in Ciudad Obregón, Sonora, between September 1, 2021, and August 31, 2024. Positive blood cultures and their sensitivity profiles were analyzed using Pearson chi-square test.
Results: Of the 225 positive blood cultures, 52% corresponded to Gram-positive microorganisms, and 48% corresponded to Gram-negative microorganisms. The most frequent microorganisms were Staphylococcus epidermidis (31.1%), Enterobacter cloacae (15.6%), and Staphylococcus aureus (9.3%). Gentamicin (55.1%) and ciprofloxacin (49.3%) were the most effective antibiotics. The non-tunneled venous catheter was the most common access route (71.4%). In the inferential analysis, no association was found between the type of venous access and the type of infectious agent.
Conclusion: There was no significant association between the type of vascular access and the infectious agent. The main microorganisms causing infections were S. epidermidis and E. cloacae, and antimicrobial sensitivity testing showed good results with gentamicin and ciprofloxacin.


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