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There are no published guidelines for the sterilization of the flexible nasendoscope and various techniques exist. We have conducted a randomized, prospective, blinded trial of the barrier Endosheath system versus immersion in Cidex disinfectant. Using a visual analogue assessment, there were no differences at a 99% confidence interval (CI) between the two techniques from the nursing assistant and patient perspectives. Image quality was assessed blinded and no difference could be detected at a 99% CI. The Endosheath offers the advantage of increasing the productivity of each nasendoscope as the sterilization time is reduced. It also provides barrier protection against cross-contamination, including prion diseases.

Original publication




Journal article


Clin Otolaryngol Allied Sci

Publication Date





81 - 83


Adult, Aged, Aged, 80 and over, Disposable Equipment, Double-Blind Method, Endoscopes, Equipment Contamination, Female, Humans, Male, Middle Aged, Nasopharynx, Prospective Studies, Sterilization