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2011, Number 4

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Enf Infec Microbiol 2011; 31 (4)

Catheter-associated urinary tract infection and antimicrobial resistance

Galván VAL, Martínez JLA, López ÁCC, Villasuso PMR, Saldaña FMA, Martínez CAY, Fragoso MLE

Language: Spanish
References: 16
Page: 121-126
PDF size: 121.29 Kb.


ABSTRACT

Background. Catheter-associated urinary tract infection is a public health concern. 35% to 45% of the nosocomial infections are related to the urinary tract, and 80% of them are associated to the use of urinary catheter. There are several risk factors for urinary tract infection. The most common microbial etiology is Escherichia coli resistant to drugs belonging to the group of penicillins and quinolones.
Materials and methods. It is a case-control study, descriptive for sex and age, and analytic for the presence and duration of catheterization and the development of urinary tract infection, etiology and antibiotic resistance.
Results and Conclusions. 30 patients who had been catheterized for 5 or more days were included in this study, as well as 30 patients from which samples were obtained prior to catheterization. Approximately 50% of the patients were ≥ 70 years old. Urinary tract infection was found in 15.55% of the patients prior to catheterization, and in 43.33% of the patients with a urinary catheterization of 5 or more days. The latter had 4.97 time risk of suffering from urinary tract infection. The isolates corresponded mainly to enterobacteria that showed high sensitivity to amikacin and resistance to the rest of antibiotics that were tested. Association was found between the duration of catheterization and development of urinary tract infection, demonstrating the importance of performing urine cultures according to the guidelines in order to anticipate its development and start early and adequate treatment.


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