Biofilm in voice prosthesis: A prospective cohort study and laboratory tests using sonication and SEM analysis

Clinical Otolaryngology : Official Journal of ENT-UK ; Official Journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery
J GalliC Parrilla

Abstract

The objective of the study was to compare the biofilm growing pattern and its morphological extent on silicone and a teflon-like material using a sonication process and a Scanning Electron Microscope (SEM). A prospective cohort study and a laboratory study. Otolaryngology -Head and Neck surgery Department and the Microbiology Institute. The participants included fifteen laryngectomised patients with phonatory prostheses, which were removed because of device failure, and two different kinds of phonatory prostheses from the laboratory (Provox 2 and ActiValve) that were artificially colonised by Candida albicans. Tracheo-oesophageal puncture (TEP) is currently considered the gold standard for post-laryngectomy voice rehabilitation. "Leakage" represents the most common cause of substitution and is generated by biofilm colonisation of the prosthesis by mixed mycotic and bacterial agents. New biomaterials have been developed that are deemed to be more resistant to the colonisation of micro-organisms and material deformation. The devices showed colonisation by mixed bacterial flora (Staphylococci 13%, Streptococci 9%, and Haemophilus influenzae 5%) and by yeasts (Candida albicans 12%). Moreover, we observed a different distribution of...Continue Reading

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Citations

Jan 6, 2021·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·Claudio ParrillaEmanuele Scarano
Oct 27, 2020·Acta otorhinolaryngologica Italica : organo ufficiale della Società italiana di otorinolaringologia e chirurgia cervico-facciale·Claudio ParrillaJacopo Galli
Feb 26, 2021·Journal of Applied Microbiology·N B S SilvaD D B Röder
Aug 28, 2021·Biomedicines·Dan Cristian GheorgheAlexandru Mihai Grumezescu
Oct 27, 2021·Advanced Drug Delivery Reviews·Sajid AsgharThierry F Vandamme

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