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Anaesthesia. 2001 Nov;56(11):1069-72.

Presence of protein deposits on 'cleaned' re-usable anaesthetic equipment.

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  • 1Guy's, King's College and St. Thomas' Hospitals' Medical and Dental School, London, UK. donald.miller@kcl.ac.uk

Abstract

Twenty previously used and supposedly clean, sterilised laryngeal mask airways, five bougies and five Magill forceps from the operating theatre, and 61 laryngoscope blades from different sites within a single hospital were randomly collected and stained with erythrosin B dye, which stains proteins if present on surfaces. All 20 laryngeal mask airways had been used before and were stained: four (20%) showed heavy staining, five (25%) moderate staining and 11 (55%) mild staining. Two unused laryngeal mask airways used as controls were without staining. Thirty-four of 44 (77%) laryngoscope blades taken from the operating theatres, six of seven (86%) from the overnight intensive recovery room and all 10 (100%) from the wards were stained. None of the other items was totally clean. These findings suggest that current cleaning methods do not remove all proteinaceous material.

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PMID:
11703239
[PubMed - indexed for MEDLINE]
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