The Comparison of Thyroarytenoid Muscle Myectomy and Type II Thyroplasty for Spasmodic Dysphonia.

Objective: Surgical treatments for adductor spasmodic dysphonia include bilateral thyroarytenoid muscle myectomy (TAM) and type II thyroplasty (TPII), both of which are commonly performed. The present study aimed to compare the effects of TAM and TPII.

Study Design: Retrospective study.

New approach to diagnose arytenoid dislocation and subluxation using three-dimensional computed tomography.

Understanding the complex three-dimensional (3D) arrangement of the arytenoid cartilage is necessary for diagnosing arytenoid dislocation (AD) and arytenoid subluxation (AS). We examined the 3D arrangements of AD and AS (AD/AS) cases by region and considered their new diagnoses. This retrospective study included 2 patients with AD, 10 with AS, and 23 with unilateral vocal fold paralysis (UVFP) for comparison.

Morphological change of the cupula due to an ototoxic agent: a comparison with semicircular canal pathology.

Conclusion: The cupula shows various degrees of changes after gentamicin (GM) injection into the inner ear, with or without damage of the sensory cells. This cupula change may be a part of the etiology of peripheral vertigo, and is also potentially one of the mechanisms of reduced caloric response.

Objectives: To observe the morphological changes of the cupula after injecting GM in the frog inner ear and to compare the changes of the cupula with those of the ampullary sensory cells.

Characterization of arytenoid vertical displacement in unilateral vocal fold paralysis by three-dimensional computed tomography.

The paralyzed arytenoid is not immobile and is subjected to passive movement during phonation. If anatomical changes during inspiration and phonation are compared by three-dimensional computed tomography (3D CT), it is possible to observe vertical movement of the paralyzed arytenoid. Our aim was to use 3D CT to examine the characteristics of 3D arytenoid movement in unilateral vocal fold paralysis (UVFP).

A "fenestration approach" for arytenoid adduction through the thyroid ala combined with type I thyroplasty.

Objective: To develop and evaluate the voice outcomes of an approach of arytenoid adduction (AA) through a fenestration of the thyroid ala for unilateral vocal cord paralysis.

Study Design: Twelve consecutive patients with severe unilateral vocal cord paralysis, whose maximum phonation times (MPTs) were less than or equal to 5 seconds, underwent laryngoplasty using an approach of AA performed through a fenestration of the thyroid ala combined with type I thyroplasty.

Method: Two surgical windows were made in the lower part of the thyroid ala.

A new procedure of arytenoid adduction combined with type I thyroplasty under general anesthesia using a laryngeal mask.

Laryngeal framework surgery is usually performed under local anesthesia. However, some patients are unable to tolerate extended surgery. A case of an 82-year-old woman who underwent medialization thyroplasty and arytenoid adduction of direct lateral cricoarytenoid (LCA) muscle pulling at the same time under general anesthesia using a laryngeal mask is reported.

[Two cases of laryngoplasty performed under a general anesthesia applied using a laryngeal mask for the treatment of unilateral vocal cord paralysis].

In general, laryngoplasty for unilateral vocal cord paralysis is performed under local anesthesia because the patient's voice must be heard and the movement of the vocal cords visualized during the endoscopic procedure to ensure good results. We encountered two cases who could not endure a long operation under local anesthesia and the insertion of an endoscope because of their age and gag reflex. We thus performed a combined lateral cricoarytenoid muscle pull (LCA-pull) and a type I thyroplasty under general anesthesia applied using a laryngeal mask.

Pleomorphic adenoma of the external auditory canal complicated by hearing loss secondary to chronic otitis media.

Pleomorphic adenoma (PA) rarely occurs in the external auditory canal (EAC). A case of PA complicated with chronic otitis media is reported. The patient was a 36-year-old male who began to experience a hearing loss in the left ear in 1996.

Direct pull of lateral cricoarytenoid muscle for unilateral vocal cord paralysis.

Conclusion: Lateral cricoarytenoid muscle-pull surgery (LCA pull) is a safe and effective method for the treatment of unilateral vocal cord paralysis.

Objective: To evaluate the results of an improved method of LCA pull for unilateral vocal cord paralysis.

Material And Methods: Thirteen patients with unilateral vocal cord paralysis underwent LCA pull between April 2003 and January 2004.