Abstract
After injection of hylan B gel (Hylaform®), the vocal folds of rabbits were studied by light microscopy at various time-points up to 12 months. Hylan B gel is a viscoelastic, cross-linked and insoluble hyaluronan derivative which behaves as a soft gel. It is non-immunogenic, non-toxic and non-inflammatory and has already been used in plastic surgery for intradermal implantations. Macroscopic examination of the injected vocal folds revealed a bulging in six of the animals, but on microscopical examination the hylan B gel was encountered in all of them. Already after 1 month, and increasingly so up to 12 months, there was an ingrowth of new connective tissue, with collagen, fibroblasts and hyaluronan within the gel. No inflammatory reaction or any sign of a foreign body reaction was observed throughout the study. Hylaform® may well become useful as an injection material for augmentation of vocal folds in the treatment of vocal fold insufficiency.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.