• 대한후두음성언어의학회지
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• 제20권2호
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• pp.110-117
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• 2009

Vocal fold paralysis continues to be a dominant topic in laryngology. This review article discusses the management principle of patients suffering from unilateral vocal fold paralysis. There are currently some main methods ; voice therapy ; injection laryngoplasty ; laryngeal framework surgery ; reinnervation procedures.

• 대한후두음성언어의학회지
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• 제20권2호
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• pp.126-130
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• 2009

Arytenoid motion has long been recognized as complex. Misunderstandings about the specifics of arytenoid motion remain prevalent. The resultant misunderstandings have led to erroneous or suboptimal clinical approaches to the treatment of vocal fold immobility. A thorough understanding of the anatomy of the arytenoid and cricoid cartilages, the cricoarytenoid joint, and related ligaments, muscles, and other structures is essential in order to fully understand laryngeal motion disorders. Arytenoid motion occurs in three directions. Movements involving a change anteriorly and posteriorly, as well as vertically, are due to the revolving or pitchlike motion of the arytenoid along the minor axis of the cricoid's elliptically shaped facet. The medial and lateral movements are due to the orientation of the arytenoid which in turn is determined by the forward, lateral, and inferior inclination of the cricoid-arytenoid facet. During adduction it is the outward angulation of the vocal process from the body of the arytenoid that allows the entire length of the vocal proceses to approximate one another and to have this meeting occur at the proper vertical height.

• 대한후두음성언어의학회지
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• 제5권1호
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• pp.69-74
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• 1994

Thyroplasty type III provides an effective mean of shortening the vocal fold. It is used primarily fer lowering vocal pitch. The indications for this surgery are the male patients with too high a vocal pitch of long duration which has proven resistant to voice therapy and a type of dysphonia characterized by high pitch and a breathy voice, in which the laryngeal findings include a very narrow glottal chink and a small amplitude of vibration, suggesting a stiff vocal cord. In this study, we have experienced two cases of high pitched voice, one is mutational falsetto and other is high pitched, breathy voice with stiff vocal fold. The results were satisfactorily successful with type III thyroplasty. So we report the cases of type III thyroplasty in patients of dysphonia with high pitched voice.

• 대한음성학회지:말소리
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• 제67호
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• pp.33-60
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• 2008

The aim of this study is to show the differences in acoustic parameters between a pathological voice /a/ caused by vocal polyp and a normal voice /a/ produced after LMS (Laryngeal Microscopic Surgery). It was expected that voices of two kinds could be analyzed effectively in terms of HNR in specific frequency bands than in all frequency bands. For this study, 10 patients' voice were recorded before and after LMS and then were manipulated in terms of four acoustic parameter. It was found out that (a) frequency bands of 500Hz in the range of 1,000Hz to 4,000Hz were very useful to obtain HNR values; (b) frequency bands in the range of 1,248Hz to 5,500Hz on a log scale were very useful to obtain HNR values; (c) F0 dropped after LMS but not significantly; (d) the bandwidth of the second formant (B2) decreased significantly after LMS, while that of the first formant (B1) decreased after LMS but not significantly.

• 대한후두음성언어의학회지
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• 제17권2호
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• pp.143-145
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• 2006

Oncocytic hyperplasia is uncommon in the practice of otolaryngology. Oncocytic hyperplasia usually arises in the major salivary gland, especially parotid gland. We have recently experienced a case of oncocytic hyperplasia arising in the larynx of 58 year old female patient. The mass was removed under the general anesthesia using laryngeal micro-surgery and confirmed as oncocytic hyperplasia of larynx on histopathological examination.

• 대한후두음성언어의학회지
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• 제28권1호
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• pp.5-10
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• 2017

The anatomy of the voice is not limited to the region of the larynx. Practically all body systems affect the voice. The larynx receives the greatest attention because it is the most sensitive and expressive component of the vocal mechanism, but anatomic interactions throughout the singer's body must be considered in making the singing voice. The physiology of voice production is exceedingly complex. The voice requires interactions among the power source, the oscillator, and the resonator. The review of functional anatomy and physiology in vocal technique would provide information on the terminology, components, and workings of the voice to permit an understanding of practical, every clinical problems and their solutions. The otolaryngologist, speech language pathologist, singing or acting teacher, singer, and actor would have benefit greatly from more extensive study of voice science.

• 대한후두음성언어의학회지
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• 제28권1호
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• pp.52-54
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• 2017

Vocal polyps are benign laryngeal lesions which arise from the Reinke's space abd hoarseness is the most common symptom. However, airway compromised is rarely presented in the vocal polyp. A rare case of large subglottic polyp causing dyspnea is reported. Tracheostomy was performed under local anesthesia and then the mass was resected under general anesthesia using a laryngofissure approach. The dyspnea and hoarseness disappeared after surgery immediately. The histopathological findings indicated a diagnosis of vocal cord polyp with chronic inflammatiuon. We consider that tracheostomy is the safest and most useful procedure to guarantee the upper airway in cases of large vocal polyp showing dyspnea. We hereby report a case of huge subglottic polyp in which a tracheostomy and laryngofissure was required for removing the subglottic mass successfully.

• 대한두경부종양학회:학술대회논문집
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• 대한두경부종양학회 1992년도 제9차 학술대회 연제순서 및 초록집
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• pp.139.1-139.1
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• 1992

• 대한후두음성언어의학회지
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• 제25권2호
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• pp.86-89
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• 2014

Functional dysphonia (FD) is a voice disorder in the absence of structural or neurologic laryngeal pathology. FD is not a single disease but a disease entity. Therefore several voice disorders, which have completely different pathogenesis, are included in this category. The first step of treatment of FD is differentiating patient's voice symptoms from other organic voice disorders and other functional voice problems. Several different treatment modalities are included in the managements of FD. Voice therapy is in charge of the main role in treatment of FD. Medical treatment is also necessary when patient has general problems which would affect voice production. Vocal folds mucosal lesions can cause FD even the lesion is minor. In this case proper surgical intervention helps to improve the symptom of FD. Psychiatric consultation should be considered when the patient has psychological problems.

• 대한기관식도과학회지
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• 제9권2호
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• pp.74-77
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• 2003

Pyogenic granuloma is very uncommon disease. It is a benign, elevated, and capillary-rich lesion occupying on the skin and mucous membranes, and is a reactive lesion, an overgrowth of granulation tissue. And this lesion may grow rapidly and can recur frequently. Pyogenic granuloma usually occurs on the lip, tongue, oral mucosa, and nasal mucosa. But, pyogenic granuloma of vocal cords is very rare. Recently, we experienced a case of pyogenic granuloma of a 48-year-old man who had been presented with hoarseness for 3 months. He was diagnosed pyogenic granuloma after laryngeal microscopic surgery. So we report this rare case with review of literatures.