Abstract：
BACKGROUND:There is a trend in some countries to recommend the use of surgical hand disinfectants at volumes as low as 4 ml per application. AIM:To determine whether the volume applied and hand size influence the efficacy of surgical hand disinfection. METHODS:Thirteen experiments, according to EN 12791, resulting in 269 datasets from 75 subjects were analyzed. Hands were first washed for one minute with soap. The pre-values were obtained by rubbing the finger tips in tryptic soy broth for one minute. Each subject treated his/her hands with n-propanol (60%, v/v), with as many portions as necessary to keep the hands wet for three minutes (6-12 ml). Bacterial post-values were taken from one hand (immediate effect); the other hand was gloved for three hours (sizes 7-9). The second post-value was taken when the glove was removed (3 h effect). RESULTS:The mean immediate log10 reduction of CFU was 2.56 ± 1.12. The glove size had no significant effect on the efficacy of disinfection (p = 0.182; ANOVA). However, a volume of 6 ml was significantly less effective than 9 ml for glove sizes of 7.5-8 (p < 0.05; Tukey post hoc analysis). The mean log10 reduction after 3 h was 2.12 ± 1.24. A volume of 6 ml was again significantly less effective than 12 ml for glove size 7 and than 9 ml for glove sizes 7.5-8 (p < 0.05). CONCLUSIONS:The application of small volumes of surgical hand disinfectant when using the EN 12791 reference procedure is likely to yield poor efficacy results, regardless of hand size.
journal_name
Antimicrob Resist Infect Controljournal_title
Antimicrobial resistance and infection controlauthors
Kampf G,Ostermeyer Cdoi
10.1186/2047-2994-3-15subject
Has Abstractpub_date
2014-04-24 00:00:00pages
15issn
2047-2994pii
2047-2994-3-15journal_volume
3pub_type
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