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Alcohol handrubbing and chlorhexidine handwashing protocols for routine hospital practice: a randomized clinical trial of protocol efficacy and time effectiveness


Background The World Health Organization (WHO) and the Centers for Disease Control and Prevention (CDC) recommend the use of alcohol handrubs to prevent healthcare-associated infections. However, the efficacy and time effectiveness of different alcohol handrubbing protocols have yet to be evaluated. Methods We conducted a randomised controlled trial in the general wards of a 1,300-bed, acute, tertiary care hospital to compare the effectiveness of 3 hand hygiene protocols during routine inpatient care: (1) handrubbing with alcohol covering all hand surfaces, (2) handrubbing with alcohol using the standard 7-step technique, and (3) hand washing with chlorhexidine using the standard 7-step technique. Hand samples were obtained from 60 medical and 60 nursing staff, before and after hand hygiene. Quantitative and qualitative bacterial evaluations were carried out by microbiologists blinded to the protocol. Results All 3 protocols were effective in reducing hand bacterial load (P < .01). During routine patient care, alcohol handrubbing covering all hand surfaces required less time (median, 26.0 seconds) than alcohol handrubbing using the 7-step technique (median 38.5 seconds; P ¼ .04) and chlorhexidine handwashing (median, 75.5 seconds; P < .001). Conclusion Alcohol handrubbing protocols are as efficacious as chlorhexidine handwashing. Alcohol handrubbing covering all hand surfaces is the most time-effective protocol for routine patient care activities in busy general wards.

Author: Chow A, Arah OA, Chan SP, Poh BF, Krishnan P, Ng WK, Choudhury S, Chan J, Ang B

Citation: Am J Infect Control. 2012 Nov;40(9):800-5. doi: 10.1016/j.ajic.2011.10.005. Epub 2012 Feb 10.

Published: 10/02/2012

Publication Type: Journal article

Publisher: American Journal of Infection Control