Background: Data on long-term effects of interventions in infection control are scarce. We aimed to evaluate the 8-year sustainability of a successful intervention to reduce urinary tract infections (UTIs) through restriction of urinary catheter (UC) use in an orthopedic surgical population.
Methods: Prospective UTI surveillance from November 2009-January 2010 was conducted to compare the results against the 2-year sustainability assessment performed in 2004. Semistructured staff interviews focused on UC indication, training, insertion techniques, and recall of the former intervention.
Results: A total of 336 consecutive patients were included (median age, 63 years; range, 16-95 years; 55% women). A UC was placed in 17.6% of patients (operating room [OR], 10.1%; postanesthesia care unit [PACU], 3.6%; surgical wards [SW], 3.9%) compared with 20.0% in 2004 (OR, 15.7%; PACU, 1.0%; SW, 3.7%). The incidence rate of UTI was 2.4 per 1,000 patient-days in 2010 versus 2.6 per 1,000 patient-days in 2004; adjusted incidence rate ratio 0.76; 95% confidence interval, 0.21-2.76; P = .67. The qualitative inquiry demonstrated poor recall of the intervention and knowledge of guidelines except in the OR, where we identified a champion leader.
Discussion: The intervention effect was sustained with regard to overall UTI rate and UC placement in the OR, but less in the PACU and SW.
Conclusions: Continuous leadership of a single opinion leader in a pivotal position can contribute critically to sustainability.
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