|Andrzej Steczko, Joanna Szaleniec, Paweł Stręk, Piotr Jurczak|
Introduction. Laryngeal polyp, preferably treated by
phonosurgery, is the most common type of benign vocal fold
lesion (BVFL). Phonosurgery involves precise removal of
abnormalities in the vocal folds while preserving their vocal
Aim. The aim of the present work was to analyse objectively,
via voice acoustic examination, the results of phonosurgery in
the treatment of vocal fold polyps.
Material and methods. A prospective clinical examination
involved 26 patients (aged 19 to 70 years) with laryngeal
polyps, treated by means of phonosurgery. The control group
consisted of 25 healthy volunteers (aged 24 to 65 years). The
follow-up acoustic analysis was performed before phonosurgery
and after one- and six-month period. Sustained phonation of
vowels “a”, “e”, “i” and “u”, was used for the acoustic analysis
of voice signals. Euclidean and Hamming metrics were applied
to evaluate the acoustic results of the patients in comparison
to the control group.
Results. The study revealed that voice acoustic parameters of
the patients with laryngeal polyp improved significantly after
phonosugery compared to the values before treatment. The
greatest improvement was observed in the first month after
surgery, followed by a further improvement in the following
five months. The improvement of acoustic parameters was
independent from the location of the polyp in the glottis.
Conclusions. The results indicate that the acoustic analysis
could be used in the objective monitoring of treatment effects
among subjects with benign vocal fold lesions.
słowa kluczowe: vocal fold, polyp, phonosurgery, acoustic analysis polip krtaniowy, fonochirurgia, analizaakustyczna
strony: od 131 do 138
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