• Proceedings of the KSLP Conference
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• 1998.11a
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• pp.190-190
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• 1998

배경 : 기능성발성장애는 해부생리학적으로 정상적인 발성기관을 갖고 있으나 잘못된 사용에서 기인하며, 기질적 이상의 결과로서 후두 생물역학의 변화에 따른 잘못된 보상기전에 의해서 일어나게 된다. 흔히 기능성발성장애는 음성치료로서 치료가 가능하나 음성치료에 반응하지 않는 경우 치료에 많은 어려움이 따른다. (중략)

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.25 no.2
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• pp.75-78
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• 2014

Functional dysphonia refers to a voice disturbance that occurs in the absence of structural or neurologic laryngeal pathological characteristics. Poorly regulated activity of the intrinsic and extrinsic laryngeal muscles is cited as the proximal cause of functional dysphonia (FD). Recently, the term functional dysphonia has been replaced in some clinical circles by diagnostic label muscle tension dysphonia (MTD), which serves to highlight excess, dysregulated, or imbalanced activity of the intrinsic and extrinsic laryngeal muscles as proximal cause of the observed dysphonia. And recent research evidence points to specific personality traits as important contributors to its development and maintenance. However, the origin of this dysregulated laryngeal muscle activity has not been fully elucidated. Further research is needed to better understand the pathogenesis of functional dysphonia, and factors contributing to its successful management.

• Proceedings of the KSLP Conference
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• 1994.06b
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• pp.83-83
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• 1994

발성기구의 생리학적 연구나 발성장애의 병태를 검사함에 있어서 폐로부터 송출되는 호기의 에너지가 성문에 있어서 어느 정도로 목소리의 음원으로 변환되는 지를 아는 것은 대단히 중요하다. 이것을 알기 위해서는 발성시의 호기류율과 함께 성문하에 있어서의 호기압을 측정하여 발성된 목소리의 강도와의 관계를 조사할 필요가 있다. 기류 저지법을 이용한 발성시의 공기역학적 검사법은 발성장애에 대한 공기역학적 검사의 한 방법으로, 기류 저지법을 사용한 발성시의 호기압(폐내압)측정을 호기류율, 목소리 강도, 높이의 측정과 조합시키는 방법으로 장치는 기류저지용의 회전 셧터를 발성기능 검사장치의 mouth piece에 접촉시킨 것이다. (중략)

• Proceedings of the KSLP Conference
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• 1999.11a
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• pp.184-184
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• 1999

배경 : 변환실성증(conversion aphonia/dysphonia)은 심리적 요인으로 인해 기질적 문제없이 기능적으로 발성장애를 보이는 경우로, 음성치료의 대상이 되는 것으로 알려져 왔다. 하지만 실제 임상의 예가 적어 상기 질환에 대해 진단적 기준 또는 음성 치료의 효과에 대한 보고가 적은 편이다. 본원에서는 지난 3년간(96/7-99/6) 총 5례만이 상기 진단을 받았고, 이들 중 4례에서 음성치료가 시행된 예가 있었다. 목적 : 변환실성증의 발성 양상과 감별기준, 음성치료의 중재 방법 및 효과를 사례를 통해 보고하고자 하였다. (중략)

• Phonetics and Speech Sciences
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• v.15 no.2
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• pp.31-40
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• 2023

Tube phonation in water has been widely used for voice training among semi-occluded vocal tract (SOVT) exercises in which the patient bubbles with phonation keeping the tube submerged in water. This study aims to investigate the effect of tube diameter and water depth on bubble height and maximum phonation time (MPT) for patients with hyperfunctional voice disorders. Seventeen patients with hyperfunctional voice disorders were asked to bubble with sustained /u/ at the different inner diameters of tube (5, 7, and 10 mm), water depth (4, 7, and 10 cm). A water resistance phonation biofeedback system using a water height sensor was used for recording bubble height and MPT. The bubble height was significantly changed by the tube diameter while MPT was significantly changed with the tube diameter and water depth. Although the wider tube presented significantly lower bubble height for a given depth, relatively consistent bubble height was maintained. Depending on the water depth, the bubble height did not significantly differ for a given tube diameter. In addtion, MPT significantly decreased with water depth and a wider tube led significantly shorter MPT. A water level-driven water resistance biofeedback system provided useful information on bubble characteristics and vocal fold vibration depending on tube diameter and water depth. It can be useful to monitor the breath support during water resistance phonation for patients with hyperfunctional voice disorders.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.17 no.2
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• pp.127-132
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• 2006

Background and Objectives : Functional dysphonia is a voice disturbance in the absence of structural or neurologic laryngeal pathology characterized by voluntary misuse of laryngeal muscles. The present report reviews clinical characteristics of 25 patients with functional dysphonia. Materials and Method : We analyzed medical records, perceptual and acoustic analysis of voice samples, aerodynamic studies and laryngoscopy. Results : There was no sex or age predilection. Eighty four percent of patients presented sudden onset of symptoms and 76% had specific events at the onset. Most patients showed breathy or strained voice and various degree of vocal fold insufficiency with supraglottic compensatory contractions. Acoustic analysis revealed non-diagnostic, but mean flow rate was lower than normal in all cases. All patients responded to voice therapy except for 4 patients who were tort to follow up. Mean number of voice therapy sessions required to get responses is 1.9 sessions. Conclusion : We concluded that patients with functional dysphonia responded very well to short-term voice therapy and should be included in differential diagnosis in patients with dysphonia cannot be explained by structural or neurologic etiology.

• Proceedings of the KSLP Conference
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• 1994.06b
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• pp.88-88
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• 1994

초기후두암에 대한 방사선요법은 수술적 치료에 비하여 정상 후두기능 즉 발성 기능을 최대 한 보존할 수 있는 장점이 있다. 그러나 방사선 치료법은 병적 혹은 정상 후두조직에 섬유화, 점막부종 혹은 점액선 간소등의 변영을 초래할 수 있기 때문에 어느 정도의 음성장애를 유발하게 된다. 방사선요법이 후두의 발성기능에 미치는 영향을 알아보기 위하여 초기후두암 환자와 두경부암으로 인하여 정상후두에 방사선 조사를 받았던 환자 및 정상대조군 각 20명에 대하여 음향 및 공기역학적 음성검사를 시행하여 음성장애의 특성을 비교, 검토하였다. 초기 후두암 환자들에게 사는 방사선 치료 후 음성지표들이 관찰되었고, 정상후두에는 큰 영향을 미치지 않았다. (중략)

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.30 no.1
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• pp.12-14
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• 2019

Functional dysphonia (FD) is a disease entity which includes various voice disorders in the absence of structural or neurologic laryngeal pathology. Muscle tension dysphonia (MTD), psychogenic dysphonia are representative FD with completely different pathogenesis. Therefore there is no standard treatment modality for FD, the first step of treatment of FD is differentiating patient's voice symptoms from other organic voice disorders and other functional voice problems. MTD is a functional voice disorder caused by hyperfunction of intrinsic and extrinsic laryngeal musculature. Symptoms include increased vocal effort, roughness, fatigue and odynophonia. First line for MTD is indirect or direct voice therapy. Unfortunately, many patients with MTD improve with voice therapy alone. For these patients, various modalities tried; lidocaine application, surgical excision of the false vocal folds, and botulinum toxin injection, etc. Botulinum toxin injections are widely used in the field of otolaryngology, especially for spasmodic dysphonia. However, its use in FD or MTD has only been described in few case reports. The aim of this lecture is to evaluate the feasibility of botulinum toxin injection for FD, especially MTD.

• Proceedings of the KSLP Conference
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• 1998.11a
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• pp.188-188
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• 1998

구강후부암은 흔히 연구개, 설근부 등을 침범하여 연구개의 절제가 동반되고 이에 따른 발성, 연하 등에 장애를 남기게 된다. 이의 재건을 위해 다양한 피판술이 고안되고 있으며 그 중 요전완유리피판은 피판이 얇고 유연하여 입체적 형태의 재건이 용이하며 감각신경을 포함하여 재건할 수 있고 장장근인대를 포함시킬 경우 연구개의 역동적인 기능까지 재건할 수 있는 등의 장점으로 최근 많이 이용되고 있다. (중략)

• The Journal of the Korea Contents Association
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• v.19 no.12
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• pp.270-278
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• 2019

This study was performed to compare the aerodynamic characteristics of young and elderly adult male patients with voice disorders during continuous speech. Aerodynamic measurements were obtained after 12 young male patients and 9 elderly male patients read a paragraph. The elderly group showed longer duration, lower airflow rate and air volume than the younger group, but the differences were not significant except phonation time. So, when interpreting the meaning of aerodynamic measures of elderly voice disorder patients in the aspects of airflow and air volume, it should take into account various conditions(e. g. reading materials, pulmonary functions) as well as age.