새로운 임시적 성대 주입물 : Radiesse Lite에 대한 예비 임상실험

Kwon, Tack-Kyun,Jackie, Gartner-Schmidt,Rosen, Clark A. 대한후두음성언어의학회 2004 대한후두음성언어의학회지 Vol.15 No.2

Background and Objectives : Temporary vocal fold injection is not only performed to restore the laryngeal function in temporary unilateral vocal fold paralysis or paresis, but also performed as a test injection prior to the permanent injection. Gelfoam has been safely used for the past several decades for the temporary vocal fold augmentation. Recently, we found a new material, called Radieses Lite, may be used as a temporary injection material. Material and Methods : We report preliminary results of 11 patients who had Radiesse Lite injection with a variety of pathologies. Results : Based on the results from the 6 patients who completed follow-up, the duration of effectiveness of Radiesse Lite seems to be from 2 to 3 months depending on the injection amount. Radiesse Lite satisfies several requirements of the ideal temporary vocal fold injection material in terms of injectability, convenience, duration of effectiveness and safety. Conclusion : The authors concluded that Radiesse Lite might be a good option for temporary vocal fold injection especially in the office setting.

두경부수술에서 경동맥 희생과 사전검사

권택균(Tack Kyun Kwon),성명훈(Myung Whun Sung),김광현(Kwang Hyun Kim),김정준,이철희(Chul Hee Lee),민양기(Yang Gi Min) 대한두경부종양학회 1998 대한두경부 종양학회지 Vol.14 No.2

Objectives: The authors tried to analyze the results of carotid artery sacrifice with or without preoperative carotid evaluation. Materials and Methods: Thirteen patients undergone carotid sacrifice were evaluated. Carotid balloon occlusion test (BOT) and single-photon emission computed tomography (SPECT) with technetium-99m-labeled hexamethylpropyleneamineoxime (99mTc-HMPAO ) were used for preoperative carotid evaluation. Results: The causes of carotid artery sacrifice consisted of the neck mass involving the carotid artery, spontaneous aneurysmal rupture, and traumatic pseudoaneurysm. Five patient had postoperative neurologic complications and two of them had permanent neurologic deficits. Conclusion: The authors stress that the preoperative evaluation in carotid artery sacrifice is imperable, and the BOT with SPECT can be used in selecting the method of treatment. But since these tests cannot predict the postoperative outcome perfectly, careful perioperative care of the patients should be exercised regardless of the results of the preoperative evaluation.

지연성 성대 마비를 동반한 미주신경에 국한된 Herpes 감염

권택균,Kwon, Tack-Kyun 대한후두음성언어의학회 2005 대한후두음성언어의학회지 Vol.16 No.1

Vagus nerve palsy caused by herpes virus infection is rare. Here, the author presents a 65-year-old woman with acute onset of right side otalgia and sore throat, followed by delayed vocal fold paralysis on the same side. Vesicles were also found on the posterior wall of ear canal but the tympanic membrane was not involved. Laryngoscopy revealed multiple ulcerative lesions on the pharyngeal and laryngeal mucosa exclusively on the right side. One month later, she noticed dyshonia which turned out right vocal fold paralysis. Skull base to upper chest CT did not reveal local lesion. Three months after finishing the acyclovir, her symptoms were almost gone and vocal fold movement has almost completely improved. Vagus nerve involvement of herpes infection should be considered as a differential diagnosis for patients with herpes zoster oticus with sore throat.

Lymphocytic Hypophysitis in a Patient with Testiculal Feminization Syndrome

Cho, Tack-Geun,Kwon, Jeong-Taik,Nam, Teak-Kyun,Suk, Jong-Sik The Korean Neurosurgical Society 2007 Journal of Korean neurosurgical society Vol.41 No.1

Lymphocytic hypophysitis is a rare inflammatory disease of the pituitary gland that is one of the cause of hypopituitarism. The majority of cases occur in women during the peripartum period, and it is rare in men. Testicular feminization syndrome is a genetic disorder presenting a 46XY karyotype, but a normal female phenotype. We report a case of lymphocytic hypophysitis in a 23-year-old woman with testicular feminization syndrome.

노인성 음성의 치료

권택균,Kwon, Tack-Kyun 대한후두음성언어의학회 2014 대한후두음성언어의학회지 Vol.25 No.1

Presbyphonia is defined as voice change caused by aging. Since presbyphonia is one of the natural aging processes, the treatment should be considered for the patients complaining communication difficulties. The treatment should not only target on presbylaryngis, but also on underlying systemic conditions such as lung function, neurological diseases and medications. Therefore, the treatment for the patients with presbyphonia should be multidisciplinary including underlying disease control, voice therapy and surgical treatment. Although various experiments on treatment of presbylaryngis are currently being tried, repeated injection laryngoplasty is still playing an important role because presbyphonia is destined to get worse over time.

후두운동장애

권택균,손희영,Kwon, Tack-Kyun,Son, Hee-Young 대한후두음성언어의학회 2010 대한후두음성언어의학회지 Vol.21 No.1

Neuromuscular Disorders Affecting the Larynx are steadily important topics at laryngology. Physiology of larynx is controlled by the frame structure and neuromuscular dynamics to acting on the specialized soft tissue, Therefore, for a proper understanding of the larynx, it is needed the voice and swallowing, a series of prayers on the regulation of neurologic function and the correlation between systemic neuromuscular disease and laryngeal symptoms and clinical knowledge, We described that clinical findings and treatments of the 3 neurological diseases causing dysphonia well (Parkinson's disease, laryngeal tremor, spasmodic dysphonia) and vocal impairments for stoke patients.

공기 역학 검사

권택균,임윤성,Kwon, Tack-Kyun,Lim, Yun-Sung 대한후두음성언어의학회 2008 대한후두음성언어의학회지 Vol.19 No.2

Several parameters are used for the assessment of phonatory function and voice quality in clinical settings. Glottic airflow, subglottal pressure, mean phonation time, laryngeal resistance and voice efficiency are the most commonly used aerodynamic parameters. Aerodynamic analysis is developed to evaluate phonatory energy source and to estimate laryngeal efficiency. Also these measurements have shown the good correlation with perceptions of breathiness and findings of glottic competence. Aerodynamic study is important to understand relationships between pulmonary and phonatory function.

후뒤세수술에서 미세피판술의 원칙

권택균,손희영,Kwon, Tack-Kyun,Son, Hee-Young 대한후두음성언어의학회 2010 대한후두음성언어의학회지 Vol.21 No.2

The vibratory or phonating surface of the human vocal folds is a complex layered structure. Benign vocal fold lesions arise primarily within the lamina propria of the vocal folds and produce dysphonia by disrupting the normal layered architecture of the phonating surface. Therefore, treatment is aimed at excision of the lesion with restoration of the normal layered architecture. The core principle of the Microflap approach is that conservative removal of submucosal pathology with preservation of overlying normal epithelium and superficial lamina propria. Microflap approach is an essential component of most phnomicrosurgical procedures and is a challenging surgical task that requires patience, appropriate instrumentation, surgical skill, and experience. The authors reviewed surgical principles of Microflap technique, instrumentation and surgical tips that could be useful for the beginners who tried to try Microflap technique for the treatment of benign vocal fold mucosal lesions.

양성 성대 질환의 병태생리에 관한 최신지견

권택균,김민수,Kwon, Tack-Kyun,Kim, Min-Su 대한후두음성언어의학회 2015 대한후두음성언어의학회지 Vol.26 No.2

Substantial confusion exists regarding the nomenclature of benign vocal fold lesions (BVFL), because there were no pathologically diagnostic findings and deep understanding of pathogenesis in the past. There is no consensus on specific labels for BVFL, nor are the most commonly used terms defined. There is a need for a defined nomenclature for the purpose of improving communication among clinicians and with patients. Furthermore, precise definitions of BVFL will facilitate clinical research of voice disorders and may lead to a better understanding of outcomes for BVFL treatment. Laryngoscope, stroboscope, voice evaluation are used to diagnose BVFL. The objective of this review article was to develop a new paradigm of BVFL nomenclature using patient's history, stroboscope, voice therapy results, and operative findings. Furthermore, precise definitions of BVFL will facilitate clinical research of voice disorders and may lead to a better understanding of outcomes for BVFL treatment.

Role of Surgical Salvage for Regional Recurrence in Laryngeal Cancer

Jeong, Woo-Jin,Jung, Young Ho,Kwon, Seong Keun,Hah, J Hun,Kwon, Tack-Kyun,Sung, Myung-Whun,Kim, Kwang Hyun The American Laryngological, Rhinological Otologic 2007 The Laryngoscope Vol.117 No.1

OBJECTIVES:: The aims of this study were to analyze the pattern of regional recurrence in laryngeal cancer, evaluate the role of surgical salvage, and identify factors affecting salvage outcome. METHODS:: Retrospective analysis was conducted on medical records from a 16-year period. Of 463 patients diagnosed with laryngeal cancer, 25 patients with regional recurrence managed with salvage neck dissection were identified and subject to study. Isolated local recurrences and all distant metastases were excluded. RESULTS:: All patients were male with a median age of 61 years. The overall rate of regional recurrence was 5.4%. Median time to regional recurrence was 13 months. Isolated regional recurrence occurred in 76% of cases, whereas locoregional recurrence occurred in 24%. A 5-year survival rate for patients undergoing neck dissection as salvage management was 61.2%. Patients with recurrence in the contralateral neck were definitely associated with poor prognosis. Although standard statistical significance was not met, trends for poorer salvage result were identified in patients with a history of local recurrence before regional recurrence, recurrence in a previously dissected neck, and recurred node size of 3 cm or above. CONCLUSIONS:: Our study shows that salvage neck dissection for regional recurrence in laryngeal cancer is an acceptable approach. Surgical eradication of disease should be warranted whenever possible. Prudent planning of management is mandatory in the presence of history of local recurrence before regional recurrence, previously dissected neck, large size of recurrent node, and contralateral neck recurrence.