A randomized trial of catheter change and short course of antibiotics for asymptomatic bacteriuria in catheterized ICU patients

Abstract

Objective

To determine the effect on the occurrence of urosepsis of a treatment with a short course of antibiotics and indwelling urethral catheter replacement in clinically asymptomatic intensive care unit (ICU) patients with a positive urine culture occurring at least 48 h after catheterization.

Methods

A prospective randomized clinical trial was conducted in the medico-surgical ICU of a tertiary care centre. Sixty patients hospitalized in the ICU with an indwelling urethral catheter for longer than 48 h developing an asymptomatic positive urine culture were randomized to receive either a 3-day course of antibiotics associated with the replacement of the indwelling urethral catheter 4 h after first antibiotic administration or no antibiotics, no catheter replacement (standard of care).

Results

Three patients in each group developed urosepsis (P = 0.1). There were no significant differences in duration of mechanical ventilation between the study group and the standard of care group (9 [4–20] days vs 5 [2–15] days, P = 0.2), in duration of urinary catheterization (22 [11–40] days vs 18 [14–33] days, P = 0.8), or in length of ICU stay (28 [13–46] vs 19 [15–34], P = 0.6). The recurrence of positive urine culture at days 7 and 15 was not affected by the randomization (P = 0.1). The profile of bacterial resistance was similar in the two groups.

Conclusions

Treating a positive urine culture in an asymptomatic patient with an indwelling urethral catheter does not reduce the occurrence of urosepsis in the medico-surgical ICU.

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Correspondence to Marc Leone.

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Leone, M., Perrin, AS., Granier, I. et al. A randomized trial of catheter change and short course of antibiotics for asymptomatic bacteriuria in catheterized ICU patients. Intensive Care Med 33, 726–729 (2007). https://doi.org/10.1007/s00134-007-0534-1

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Keywords

  • Bacteriuria
  • Intensive care unit
  • Urinary catheter
  • Antibiotics