Summary
Introduction
The cases consisted of three men with mutational dysphonia, who were aged 37, 35,
and 38 years. The speaking fundamental frequencies (SFFs) at the time of the initial
diagnosis were 174.6, 170.2, and 180.0 Hz.
Methods
In all three patients, voice therapy proved ineffective; therefore, surgery was considered.
In the anterior-posterior compression test performed preoperatively in the three patients,
the voice became low-pitched.
Results
The SFFs decreased postoperatively to 106.9, 115.4, and 87.5 Hz, respectively, in the three patients.
Conclusions
Type 3 thyroplasty (TP3) is effective for the treatment of patients with mutational
dysphonia in whom voice therapy proved unsuccessful.
Objective
The SFF of men is high in childhood. At the time of the second pubescent sexual orientation,
the frequency usually decreases. However, in some cases, the high-pitched voice of
childhood may persist without successful switch to a low-pitched voice during puberty.
Thus, there are rare cases of adults with a high-pitched boyish voice. Voice therapy
is usually effective for the treatment; however, it may fail in some cases. We performed
TP3 for subjects in whom voice therapy proved ineffective. With TP3, the tension of
the vocal folds decreases, and the voice becomes low-pitched.
Key Words
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Article info
Publication history
Published online: June 24, 2013
Accepted:
May 2,
2013
Identification
Copyright
© 2013 The Voice Foundation. Published by Elsevier Inc. All rights reserved.
