Izvorni znanstveni članak
https://doi.org/10.20471/acc.2024.63.03-04.18
Effect of Using Topical Anesthetic during High-Speed Digital Imaging on Phonation Assessed by Digital Kymography Parameters
Mario Bilić
; Department of Otolaryngology, Head and Neck Surgery, Zagreb University Hospital Center, Zagreb, Croatia
Juraj Slipac
; Department of Otolaryngology, Head and Neck Surgery, Zagreb University Hospital Center, Zagreb, Croatia
*
Lana Kovač Bilić
; Department of Otolaryngology, Head and Neck Surgery, Zagreb University Hospital Center, Zagreb, Croatia
* Dopisni autor.
Sažetak
High-speed digital imaging (HSDI) is a contemporary method of the phonation
process assessment. It records laryngeal images at a rate of up to 8000 frames per second. Digital
kymography (DK) extracts high-speed images sampled at a single point along the vocal folds and
enables objective quantification of the vocal fold movements. According to the literature, usage of
topical anesthetic (TA) in oral cavity, oropharynx and laryngopharynx prior to examination, in order
to reduce pain and discomfort level, is optional but the effect of using TA on the phonation process
is not well investigated. The aim of this study was to investigate the effect of using TA during HSDI
on DK parameters. We performed a prospective double-blind randomized controlled study on 58
healthy subjects. All subjects were examined on 2 consecutive days using TA and using saline solution
(placebo) by the same experienced examiner. DK images, made on the middle of the vocal folds, were
obtained from HSDI. Vocal folds were examined across glottal cycles and glottal width and period
irregularities, left-right phase asymmetry, and the open, closed, opening and closing quotient were calculated.
Our data showed that using TA during HSDI did not induce statistically significant changes
of DK parameters in healthy subjects.
Ključne riječi
Topical anesthetic; High-speed digital imaging; Digital kymography
Hrčak ID:
333256
URI
Datum izdavanja:
31.12.2024.
Posjeta: 715 *