PMID: 9422284Jan 9, 1998Paper

Acoustic analysis of the speaking voice after thyroidectomy

Journal of Voice : Official Journal of the Voice Foundation
F DebruyneW Wellens

Abstract

Voices of 47 female patients were analyzed before and after thyroidectomy, with preservation of the recurrent and superior laryngeal nerves and normal vocal fold motility during the observation period. A mean decrease of the speaking fundamental frequency (SFF) of 12 Hz was found on day 4; in 8 patients the postoperative vocal pitch was more than 2 semitones lower. The distance between the highest and lowest F0 during speaking was diminished (speech was more monotone) and the vocal jitter was elevated. In the frequency spectrum, there was a diminished prominence of the harmonics. The other spectral parameters (as the slope of the spectrum and the H1/H2 ratio) were unchanged. All changes had disappeared the fifteenth day, except for a lower SFF (> 2 semitones) in 2 cases. It is concluded that after normal dissection of the laryngeal nerves, and in the absence of vocal fold paresis, other reasons for voice changes immediately after thyroidectomy remain: alterations in the neck muscles, in the laryngeal mucosa, and in the patient's general condition. Although the effects seem limited and of short duration, knowledge of them is helpful when informing the patient before thyroid surgery.

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Citations

Feb 10, 2012·Indian Journal of Otolaryngology and Head and Neck Surgery : Official Publication of the Association of Otolaryngologists of India·M Santosh, B Rajashekhar
Jun 5, 2013·Indian Journal of Otolaryngology and Head and Neck Surgery : Official Publication of the Association of Otolaryngologists of India·Sung Won KimKang Dae Lee
May 11, 2010·Thyroid : Official Journal of the American Thyroid Association·Gregory W Randolph
Jul 12, 2012·Thyroid : Official Journal of the American Thyroid Association·Isabel Cristina Medeiros SilvaElisabete Carrara-de Angelis
Dec 14, 2012·Thyroid : Official Journal of the American Thyroid Association·Tatsuyoshi MaedaKen-Ichi Nibu
Jul 9, 2013·Thyroid : Official Journal of the American Thyroid Association·Jun-Ook ParkDong-Il Sun
May 7, 2008·Annals of Surgical Oncology·Leonard R HenryAlexander Stojadinovic
Mar 3, 2012·World Journal of Surgery·Celestino P LombardiMarco Raffaelli
Apr 22, 2014·Journal of the American College of Surgeons·Diego A VicenteAlexander Stojadinovic
May 10, 2013·World Journal of Surgery·Inn-Chul NamDong-Il Sun
Nov 13, 2015·World Journal of Surgery·Antje E GohrbandtThomas J Musholt
Aug 29, 2012·Journal of Voice : Official Journal of the Voice Foundation·Maggie A KuhnDavid Myssiorek
May 3, 2011·Journal of Voice : Official Journal of the Voice Foundation·Cuie LiFei Xia
Oct 16, 2015·World Journal of Surgery·Chang Myeon SongKyung Tae
Dec 5, 2009·Surgery·Celestino Pio LombardiRocco Bellantone
Dec 8, 2007·Surgery·Katja SchlosserKatja Maschuw
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Jun 8, 2015·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Inn-Chul NamDong-Il Sun
Mar 20, 2015·Thyroid : Official Journal of the American Thyroid Association·Gregory W RandolphGayle Woodson
May 30, 2016·Journal of Voice : Official Journal of the Voice Foundation·Doh Young LeeKwang-Yoon Jung
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Aug 2, 2017·The Journal of Laryngology and Otology·I-C NamD-I Sun
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Apr 21, 2016·World Journal of Surgery·Jun-Ook ParkDong-Il Sun

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