Thyroarytenoid Muscle Ablation for Treatment of Spasmodic Dysphonia

ABSTRACT Adductor spasmodic dysphonia is the most common form of laryngeal dystonia and comprises about 80% of all laryngeal dystonias. It is characterized by strained and strangled voice quality causing significant impairment to the patient. This article focuses on the surgical treatment of adductor spasmodic dysphonia by thyroarytenoid muscle ablation. It provides longlasting control of symptoms and patient satisfaction is very high.

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Surgical Treatment of Adductor Spasmodic Dysphonia in a Patient with Gender Identity Disorder

Nihon Kikan Shokudoka Gakkai Kaiho ◽

10.2468/jbes.60.489 ◽

2009 ◽

Vol 60 (6) ◽

pp. 489-495

Author(s):

Kazuhiro Nakamura ◽

Yusuke Watanabe ◽

Kiyoaki Tsukahara ◽

Ujimoto Konomi ◽

Daigo Komazawa ◽

...

Keyword(s):

Surgical Treatment ◽

Gender Identity ◽

Gender Identity Disorder ◽

Spasmodic Dysphonia ◽

Adductor Spasmodic Dysphonia

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Cross-Innervation of the Thyroarytenoid Muscle by a Branch from the External Division of the Superior Laryngeal Nerve

Annals of Otology Rhinology & Laryngology ◽

10.1177/000348949710600712 ◽

1997 ◽

Vol 106 (7) ◽

pp. 594-598 ◽

Cited By ~ 41

Author(s):

Sina Nasri ◽

Joel A. Sercarz ◽

Pouneh Beizai ◽

Young-Mo Kim ◽

Ming Ye ◽

...

Keyword(s):

Vocal Fold ◽

Superior Laryngeal Nerve ◽

Laryngeal Nerve ◽

Spasmodic Dysphonia ◽

Clinical Implications ◽

Motor Innervation ◽

Vocal Fold Vibration ◽

Adductor Spasmodic Dysphonia ◽

Thyroarytenoid Muscle ◽

Stimulation Of

The neuroanatomy of the larynx was explored in seven dogs to assess whether there is motor innervation to the thyroarytenoid (TA) muscle from the external division of the superior laryngeal nerve (ExSLN). In 3 animals, such innervation was identified. Electrical stimulation of microelectrodes applied to the ExSLN resulted in contraction of the TA muscle, indicating that this nerve is motor in function. This was confirmed by electromyographic recordings from the TA muscle. Videolaryngostroboscopy revealed improvement in vocal fold vibration following stimulation of the ExSLN compared to without it. Previously, the TA muscle was thought to be innervated solely by the recurrent laryngeal nerve. This additional pathway from the ExSLN to the TA muscle may have important clinical implications in the treatment of neurologic laryngeal disorders such as adductor spasmodic dysphonia.

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Evaluation of Voice Quality in Adductor Spasmodic Dysphonia before and after Botulinum Toxin Treatment

Annals of Otology Rhinology & Laryngology ◽

10.1177/000348940111000707 ◽

2001 ◽

Vol 110 (7) ◽

pp. 627-634 ◽

Cited By ~ 35

Author(s):

Ton P. M. Langeveld ◽

Edgar H. Houtman ◽

Jeroen J. Briaire ◽

Maya van Rossum ◽

Aeilko H. Zwinderman ◽

...

Keyword(s):

Botulinum Toxin ◽

Voice Quality ◽

Spasmodic Dysphonia ◽

Adductor Spasmodic Dysphonia ◽

Before And After ◽

Botulinum Toxin Treatment

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Impact in Vocal Quality in Partial Myectomy and Neurectomy Endoscopic of Thyroarytenoid Muscle in Patients with Adductor Spasmodic Dysphonia

Brazilian Journal of Otorhinolaryngology ◽

10.1016/s1808-8694(15)30066-5 ◽

2006 ◽

Vol 72 (2) ◽

pp. 261-266 ◽

Cited By ~ 8

Author(s):

Domingos Hiroshi Tsuji ◽

Fernanda Silveira Chrispim ◽

Rui Imamura ◽

Luiz Ubirajara Sennes ◽

Adriana Hachiya

Keyword(s):

Spasmodic Dysphonia ◽

Adductor Spasmodic Dysphonia ◽

Vocal Quality ◽

Thyroarytenoid Muscle

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Endoscopic Laser Thyroarytenoid Myoneurectomy in Patients with Adductor Spasmodic Dysphonia: A Pilot Study on Long-Term Outcome on Voice Quality

Journal of Voice ◽

10.1016/j.jvoice.2011.07.009 ◽

2012 ◽

Vol 26 (5) ◽

pp. 666.e7-666.e12 ◽

Cited By ~ 13

Author(s):

Domingos Hiroshi Tsuji ◽

Marystella Tomoe Takahashi ◽

Rui Imamura ◽

Adriana Hachiya ◽

Luiz Ubirajara Sennes

Keyword(s):

Pilot Study ◽

Voice Quality ◽

Spasmodic Dysphonia ◽

Term Outcome ◽

Long Term Outcome ◽

Adductor Spasmodic Dysphonia ◽

Endoscopic Laser

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Surgical treatment for adductor spasmodic dysphonia – efficacy of bilateral thyroarytenoid myectomy under microlaryngoscopy

Acta Oto-Laryngologica ◽

10.1080/00016480801965019 ◽

2008 ◽

Vol 128 (12) ◽

pp. 1348-1353 ◽

Cited By ~ 29

Author(s):

Kazuhiro Nakamura ◽

Hiroshi Muta ◽

Yusuke Watanabe ◽

Ryuichi Mochizuki ◽

Tomoyuki Yoshida ◽

...

Keyword(s):

Surgical Treatment ◽

Spasmodic Dysphonia ◽

Adductor Spasmodic Dysphonia

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Surgical Treatment for Male-to-Female Transsexuals and Cases of Adductor Spasmodic Dysphonia

Koutou (THE LARYNX JAPAN) ◽

10.5426/larynx1989.19.2_54 ◽

2007 ◽

Vol 19 (2) ◽

pp. 54-58 ◽

Cited By ~ 1

Author(s):

Tetsuji Sanuki ◽

Nobuhiko Isshiki ◽

Kazuhiro Nakamura ◽

Eiji Yumoto

Keyword(s):

Surgical Treatment ◽

Spasmodic Dysphonia ◽

Adductor Spasmodic Dysphonia ◽

Male To Female

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Surgical Treatment for the Patient of Adductor Spasmodic Dysphonia

Koutou (THE LARYNX JAPAN) ◽

10.5426/larynx.23.92 ◽

2011 ◽

Vol 23 (2) ◽

pp. 92-96

Author(s):

Kazuhiro Nakamura ◽

Kiyoaki Tsukahara ◽

Tomoyuki Yoshida ◽

Mamoru Suzuki

Keyword(s):

Surgical Treatment ◽

Spasmodic Dysphonia ◽

Adductor Spasmodic Dysphonia

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Unilateral versus Bilateral Botulinum Toxin Injections in Adductor Spasmodic Dysphonia

Annals of Otology Rhinology & Laryngology ◽

10.1177/000348949810700403 ◽

1998 ◽

Vol 107 (4) ◽

pp. 280-284 ◽

Cited By ~ 19

Author(s):

Ton P. M. Langeveld ◽

Harm A. Drost ◽

Robert J. B Aatenburg de Jong

Keyword(s):

Botulinum Toxin ◽

Side Effects ◽

Rating Scales ◽

Voice Quality ◽

Convincing Evidence ◽

Spasmodic Dysphonia ◽

Duration Of Effect ◽

Adductor Spasmodic Dysphonia ◽

Swallowing Problems ◽

A Prospective Study

Thyroarytenoid injection of botulinum toxin is the therapy of choice in spasmodic dysphonia. However, there is no convincing evidence as to whether unilateral or bilateral injections are to be preferred. For this reason, a prospective study was designed in which voice quality, duration of effect, and side effects were assessed. Twenty-seven patients with adductor spasmodic dysphonia were treated with percutaneous injections of botulinum toxin. The first treatment consisted of injection of 5 units in the left thyroarytenoid muscle. The second treatment, 2.5 units in both sides, took place when the effect of the first procedure had completely ceased. All patients underwent both procedures. By means of self-rating scales, effects and side effects were assessed over at least 3 months. There was no difference between the procedures in duration of voice improvement, nor in the occurrence of breathy dysphonia. After a bilateral injection, statistically more patients reported swallowing problems. However, most patients preferred the bilateral injection, in spite of more and longer-lasting side effects.

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