Electromyography-Guided Botulinum Toxin Injection Into the Cricothyroid Muscles in Bilateral Vocal Fold Abductor Paralysis

Objectives Bilateral vocal fold abductor paralysis (BVFAP) both deteriorates quality of life and may cause life-threatening respiratory problems. The aim of this study was to reduce respiratory symptoms in BVFAP patients using cricothyroid (CT) botulinum toxin (BTX) injection. Methods Before and 2 w...

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Main Authors: Mustafa Sahin, Ibrahim Aydogdu, Serdar Akyildiz, Munevver Erdinc, Kerem Ozturk, Fatih Ogut
Format: Article
Language:English
Published: Korean Society of Otorhinolaryngology-Head and Neck Surgery 2017-06-01
Series:Clinical and Experimental Otorhinolaryngology
Subjects:
Online Access:http://www.e-ceo.org/upload/pdf/ceo-2016-00241.pdf
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author Mustafa Sahin
Ibrahim Aydogdu
Serdar Akyildiz
Munevver Erdinc
Kerem Ozturk
Fatih Ogut
author_facet Mustafa Sahin
Ibrahim Aydogdu
Serdar Akyildiz
Munevver Erdinc
Kerem Ozturk
Fatih Ogut
author_sort Mustafa Sahin
collection DOAJ
description Objectives Bilateral vocal fold abductor paralysis (BVFAP) both deteriorates quality of life and may cause life-threatening respiratory problems. The aim of this study was to reduce respiratory symptoms in BVFAP patients using cricothyroid (CT) botulinum toxin (BTX) injection. Methods Before and 2 weeks and 4 months after bilateral BTX injection into the CT muscles under electromyography; alterations in respiratory, acoustic, aerodynamic and quality of life parameters were evaluated in BVFAP patients with respiratory distress. For the respiratory evaluation modified Borg scale and spirometry, for the voice and aerodynamic evaluations Voice Handicap Index-30 (VHI-30), GRBAS, acoustic analysis (sound pressure level, F0, jitter%, shimmer%, noise-to-harmonic ratio) and maximum phonation time and for the quality of life assessment Short Form-36 (SF-36) form were used. Results All patients were female with a mean age of 47±8.1 years. There was a mean time of 11.8±5.5 (minimum 2, maximum 23) months between BVFAP development and BTX injection. In all cases, other than one case with unknown aetiology, the cause of vocal fold paralysis was prior thyroid surgery. In total 18.6±3.1 units of BTX were applied to the CTs. In the preinjection period, and the 2nd week and 4th month after injection, the Borg dyspnea scale was 7.3/5.3/5.0, FIV1 (forced inspiratory volume in one second) was 1.7/1.7/1.8 L, peak expiratory flow (PEF) was 1.4/1.7/2.1 L/sec, maximum phonation time was 7.0/6.4/6.2 seconds and VHI-30 was 63.2/52.2/61.7 respectively. There was no significant alteration in acoustic analysis parameters. Many of the patients reported transient dysphagia within the first week. There were insignificant increases in SF-36 sub-scale values. Conclusion After BTX injection, improvements in the mean Borg score, PEF and FIV1 values and SF-36 sub-scale scores showed the restricted success of this approach. This modality may be kept in mind as a transient treatment option for patients refused persistent tracheotomy or ablative airway surgeries.
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spelling doaj.art-e0620362ca624de2b3f4b71f4f12f5cb2022-12-22T02:09:03ZengKorean Society of Otorhinolaryngology-Head and Neck SurgeryClinical and Experimental Otorhinolaryngology1976-87102005-07202017-06-0110219320210.21053/ceo.2016.00241494Electromyography-Guided Botulinum Toxin Injection Into the Cricothyroid Muscles in Bilateral Vocal Fold Abductor ParalysisMustafa Sahin0Ibrahim Aydogdu1Serdar Akyildiz2Munevver Erdinc3Kerem Ozturk4Fatih Ogut5 Department of Otolaryngology, Adnan Menderes University Medical School, Aydin, Turkey Department of Neurology, Ege University Medical School, Izmir, Turkey Department of Otolaryngology, Ege University Medical School, Izmir, Turkey Department Chest Diseases, Ege University Medical School, Izmir, Turkey Department of Otolaryngology, Ege University Medical School, Izmir, Turkey Department of Otolaryngology, Ege University Medical School, Izmir, TurkeyObjectives Bilateral vocal fold abductor paralysis (BVFAP) both deteriorates quality of life and may cause life-threatening respiratory problems. The aim of this study was to reduce respiratory symptoms in BVFAP patients using cricothyroid (CT) botulinum toxin (BTX) injection. Methods Before and 2 weeks and 4 months after bilateral BTX injection into the CT muscles under electromyography; alterations in respiratory, acoustic, aerodynamic and quality of life parameters were evaluated in BVFAP patients with respiratory distress. For the respiratory evaluation modified Borg scale and spirometry, for the voice and aerodynamic evaluations Voice Handicap Index-30 (VHI-30), GRBAS, acoustic analysis (sound pressure level, F0, jitter%, shimmer%, noise-to-harmonic ratio) and maximum phonation time and for the quality of life assessment Short Form-36 (SF-36) form were used. Results All patients were female with a mean age of 47±8.1 years. There was a mean time of 11.8±5.5 (minimum 2, maximum 23) months between BVFAP development and BTX injection. In all cases, other than one case with unknown aetiology, the cause of vocal fold paralysis was prior thyroid surgery. In total 18.6±3.1 units of BTX were applied to the CTs. In the preinjection period, and the 2nd week and 4th month after injection, the Borg dyspnea scale was 7.3/5.3/5.0, FIV1 (forced inspiratory volume in one second) was 1.7/1.7/1.8 L, peak expiratory flow (PEF) was 1.4/1.7/2.1 L/sec, maximum phonation time was 7.0/6.4/6.2 seconds and VHI-30 was 63.2/52.2/61.7 respectively. There was no significant alteration in acoustic analysis parameters. Many of the patients reported transient dysphagia within the first week. There were insignificant increases in SF-36 sub-scale values. Conclusion After BTX injection, improvements in the mean Borg score, PEF and FIV1 values and SF-36 sub-scale scores showed the restricted success of this approach. This modality may be kept in mind as a transient treatment option for patients refused persistent tracheotomy or ablative airway surgeries.http://www.e-ceo.org/upload/pdf/ceo-2016-00241.pdfBilateral Vocal Fold ParalysisBotulinum ToxinCricothyroid Muscle
spellingShingle Mustafa Sahin
Ibrahim Aydogdu
Serdar Akyildiz
Munevver Erdinc
Kerem Ozturk
Fatih Ogut
Electromyography-Guided Botulinum Toxin Injection Into the Cricothyroid Muscles in Bilateral Vocal Fold Abductor Paralysis
Clinical and Experimental Otorhinolaryngology
Bilateral Vocal Fold Paralysis
Botulinum Toxin
Cricothyroid Muscle
title Electromyography-Guided Botulinum Toxin Injection Into the Cricothyroid Muscles in Bilateral Vocal Fold Abductor Paralysis
title_full Electromyography-Guided Botulinum Toxin Injection Into the Cricothyroid Muscles in Bilateral Vocal Fold Abductor Paralysis
title_fullStr Electromyography-Guided Botulinum Toxin Injection Into the Cricothyroid Muscles in Bilateral Vocal Fold Abductor Paralysis
title_full_unstemmed Electromyography-Guided Botulinum Toxin Injection Into the Cricothyroid Muscles in Bilateral Vocal Fold Abductor Paralysis
title_short Electromyography-Guided Botulinum Toxin Injection Into the Cricothyroid Muscles in Bilateral Vocal Fold Abductor Paralysis
title_sort electromyography guided botulinum toxin injection into the cricothyroid muscles in bilateral vocal fold abductor paralysis
topic Bilateral Vocal Fold Paralysis
Botulinum Toxin
Cricothyroid Muscle
url http://www.e-ceo.org/upload/pdf/ceo-2016-00241.pdf
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