[Pilot study of a cluster randomized controlled trial to assess the efficacy of ultraviolet light in improving hand hygiene in hospital staff].

UNLABELLED: . Pilot study of a cluster randomized controlled trial to assess the efficacy of ultraviolet light in improving hand hygiene in hospital staff. INTRODUCTION: Hand hygiene is considered the most effective measure for reducing healthcare associated infections and achieving maximum adherence to this practice is essential for patient safety; however, it is difficult to verify its adequacy and quality. AIM: To assess how the visual feedback of an ultraviolet light can improve the percentage of sanitized areas with handwashing in nurses, nurse aides and physiotherapists. METHODS: A pilot study was conducted for a cluster randomized controlled trial involving the detection of the quality of hand hygiene through the use of a fluorescent gel and a UV light, in 3 times, after 18 ± 3 days each. The quality of hygiene was documented with direct observation. The subjects in the UV group received immediate visual feedback on the quality of hygiene; those in the control group only at the end of the study. RESULTS: Out of 117 participants, 103 (50 'feedback' group - 53 'no feedback' group) were included in the analysis. No significant differences were observed between groups at T0 and T1. The probability of having hands sanitized at T2 was higher and statistically significant in subjects with feedback compared to those without (p-value = 0.0395). CONCLUSIONS: The use of visual feedback with ultraviolet light seems to improve the percentage of hand sanitization of healthcare workers, and its quality over time.