Abstract:
Introduction:Duodenoscopes have been widely used for both diagnostic and therapeutic endoscopic retrograde cholangiopancreatography procedures. Numerous outbreaks of duodenoscope-associated infections involving multidrug-resistant bacteria have recently been reported. Plasma activated water (PAW) has been widely considered an effective agent for surface decontamination and is increasingly used for disinfection of medical equipment. The aim of this study was to evaluate whether the duodenoscopes currently on market are suited for the repeated use of PAW and to test the efficacy of PAW for their disinfection. Materials and methods:In order to evaluate the disinfection efficacy and the required time of contact, the duodenoscope samples were contaminated by immersing them in fasted-state simulated intestinal fluid containing Escherichia coli, Klebsiella pneumoniae, Acinetobacter baumannii, and Pseudomonas aeruginosa, prior to PAW exposure. In order to test the duodenoscope polymer compatibility with PAW, a challenge test was conducted by immersing the samples in PAW for 30 minutes daily for 45 consecutive days. Results:Significant reductions in bacterial populations were achieved after 30 minutes of PAW treatment, indicating a high-level disinfection. Atomic force microscopy and scanning electron microscopy were used to demonstrate that repeated PAW treatment of duodenoscope coating polymer samples did not result in significant differences in morphological surface between the treated and untreated samples. Energy-dispersive X-ray spectroscopy analysis also showed no significant differences between the elemental composition of the duodenoscope coating polymer samples before and after repeated PAW treatment. Conclusion:Considering these preliminary results, PAW could be considered as a new alternative for duodenoscope reprocessing.
journal_name
Infect Drug Resistjournal_title
Infection and drug resistanceauthors
Bălan GG,Roşca I,Ursu EL,Doroftei F,Bostănaru AC,Hnatiuc E,Năstasă V,Şandru V,Ştefănescu G,Trifan A,Mareş Mdoi
10.2147/IDR.S159243subject
Has Abstractpub_date
2018-05-17 00:00:00pages
727-733issn
1178-6973pii
idr-11-727journal_volume
11pub_type
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