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Decontamination of laryngoscope blades: is our practice adequate?

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Telang, R. Patil, V. Ranganathan, P. Kelkar, R.
Spatial Coverage	India
Description	Country affiliation: India Author Affiliation: Telang R ( Department of Anesthesiology, Critical Care and Pain, Tata Memorial Hospital, Mumbai, India.)
Abstract	BACKGROUND: The laryngoscope has been identified as a potential source of cross-infection, because of blood and bacterial contamination. In India, there are no guidelines for cleaning and disinfection of anesthesia-related equipment. Practices for decontamination of laryngoscopes vary widely and in most healthcare institutes, laryngoscope blades are re-used after cleaning with tap-water. MATERIALS AND METHODS: We prospectively compared two techniques for decontamination of laryngoscope blades - a) washing with tap-water and b) washing with tap-water followed by disinfection by immersing in 5% v/v (volume/volume, 1:20 dilution) aldehyde-free biguanide agent for 10 min. We calculated the cost-effectiveness of using 5% v/v aldehyde-free biguanide agent for disinfection of laryngoscopes. We also conducted a survey to assess the decontamination practices in other Indian hospitals. RESULTS: Overall bacterial growth was 58% (29 out of 50 blades) after tap-water cleaning (of which 60% were pathogenic organisms) versus 3.4% (one out of 29 blades) after tap-water cleaning followed by immersion in disinfectant (all of which were commensals). The cost of disinfection with biguanide was Indian Rupees 1.13 (20 US cents) per laryngoscope. Most hospitals in India do not have guidelines regarding laryngoscope decontamination between uses, and cleaning with tap water is a commonly used method. CONCLUSION: Cleaning of laryngoscope blades with tap-water is a commonly used but inadequate method for decontamination. Washing with tap-water followed by disinfection with 5% v/v aldehyde-free biguanide for at least 10 min is an effective and inexpensive alternative. National guidelines for the decontamination of anesthesia equipment are necessary.
File Format	HTM / HTML
ISSN	00223859
e-ISSN	09722823
Journal	Journal of Postgraduate Medicine
Issue Number	4
Volume Number	56
Language	English
Publisher	MedKnow Publication
Publisher Date	2010-10-01
Publisher Place	India
Access Restriction	Open
Subject Keyword	Discipline Medicine Decontamination Equipment Contamination Laryngoscopes Biguanides Cost-benefit Analysis Disinfectants Guidelines As Topic Prospective Studies Comparative Study
Content Type	Text
Resource Type	Article
Subject	Medicine

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Decontamination of laryngoscope blades: Is our practice adequate?

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