%0 Journal Article
%T Microbiological safety and cost-effectiveness of weekly breathing circuit changes in combination with heat moisture exchange filters: a prospective longitudinal clinical survey
%A H¨¹bner
%A Nils-Olaf
%A Daeschlein
%A Georg
%A Lehmann
%A Christian
%A Musatkin
%A Sergei
%J GMS Krankenhaushygiene Interdisziplin£¿r
%D 2011
%I 
%X Aim: To assess the safety and cost effectiveness of a usage for seven days of breathing circuit systems (BCSs) in combination with heat moisture exchanger filters (HMEF) in operation room anesthesia. Method: In a prospective longitudinal clinical study, the contamination on high-risk surfaces (HMEF together with inner and outer surface of BCS) was monitored over 1, 2, 5, and 7 days. Results of endogenous respiratory patient flora and contamination flora of BCS, HMEF and bag were compared. Costs of prolonged use of BCS together with HMEF up to 7 days were calculated. Results: Neither physiological respiratory flora nor colonizing pathogens of the oropharynx of the ventilated patients were transmitted through the filters at any time. None of the included patients developed a postoperative pneumonia. Using the BCS for 24 hours provides a cost savings of up to 40% versus single use. Extending the change interval from 24 hours to 48 hours saved over 50% compared to change after each patient, and an additional 19% compared to change after 24 hours. In combination with a HMEF BCS can be used up to 7 days without clinical risk on multiple patients in operation room settings. Conclusion: Expanding the usage of berating in combination with usage of moist exchange filters is feasible, microbiologically safe and cost effective, as 41% of material costs per ventilation may be saved. Further research is needed to confirm these results.
%K ventilator-associated-pneumonia (VAP)
%K anesthesia breathing circuit system
%K heat and moisture exchange filter (HMEF)
%K cost effectiveness
%U http://www.egms.de/en/journals/dgkh/2011-6/dgkh000172.shtml