• 대한후두음성언어의학회지
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• 제30권1호
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• pp.15-20
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• 2019

Background and Objectives : The goal of this study is to present a strategy for improving the self-regulation (SR) ability and facilitating the change of vocal behavior by applying voice therapy using the SR concept to the patients with vocal cord nodule and muscle tension dysphonia. Materials and Method : The subjects were 80 patients and 80 patients who were diagnosed with muscle tension dysphonia and vocal nodules. As a control group, the results were compared among patients with the same dysphonia without using SR strategies. The concept of SR before voice therapy was explained to the patients, and the treatment was divided into three stages according to the goal of voice therapy. The treatment stages consist of 1) skill acquisition, 2) habit formation, and 3) habit changes. voice therapy was performed by applying SR strategies such as goal implementation intentions and a less routine behavior. Patient's dropout rates were measured to compare the adherence of voice therapy. Results : Significant improvement was seen in all groups receiving voice therapy. However, in the group using the SR strategy, the voice analysis results showed a relatively low dropout rate of voice therapy. In the generalization confirmation stage, patients who applied SR concept showed better results. SR strategy did no longer be necessary to maintain newly adopted vocal behavior. Conclusion : The results of this study show that SR is one of the cognitive factors that can have a significant impact on the outcome of voice therapy, and also has a positive impact on the acquisition and generalization of new skills. A better understanding of SR and the development of therapeutic strategies using it will play an important role in solving voice problems in clinical settings.

• 대한후두음성언어의학회지
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• 제27권1호
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• pp.5-10
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• 2016

Variable systemic diseases affect larynx and vocal fold and result in voice change. Asthma and chronic obstructive pulmonary disease make increase of intra-abdomimal pressure followed by reflux of gastric acid, which stimulate vagal-bronchopulomary reflex aggravating cough and respiratory disturbance. Fungal laryngitis in the general population is extremely rare, but can occur in immunocompromised AIDS patients. Although, initially, empirical antifungal therapy for candidiasis is often given without biopsy, diagnostic direct laryngoscopy and biopsy is imperative if a substantial clinical response is not rapidly achieved. In the highly active anti-retroviral therapy era, HIV-positive patients are living longer and are at higher risk for developing non-AIDS-defining malignancies. The incidence of head and neck cancer (HNC) which is related with human papilloma virus infection has increased. The survival is significantly lower among the AIDS-HNC patients with CD4 counts ${\leq}200cells/{\mu}L$. Rheumatoid arthritis (RA) cause voice disturbance by developing cricoarytenoid joints fixation or nodule on vocal fold. Post-menopausal voice disorder (PMVD) is caused by decreased secretion of estrogen-progesterone resulting in decrease of fundamental frequency (F0). Hormonal replacement therapy is helpful to reduce F0 decrease. RA and PMVD result in slight voice change, but it could crucial in professional voice user.

• 음성과학
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• 제7권2호
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• pp.113-126
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• 2000

A comparative phonetic analysis of Yodel singing and Belcanto singing by the electroglottographic(EGG) measurement was done in three singers. One professional tenor singer(SDI) who is also well trained in Yodel singing, another yodler(KWS) who is not so trained in Belcanto singing, and the other training tenor singer(CSK) who is not well trained both yodel and Belcanto singing. Closed quotient(CQ), speed quotient(SQ) and fundamental frequency (F0) at the initial modal part(I) , middle falsetto part(M), and final modal part(F) of the same phrase were measured by EGG machine and program(Kay model 4338). In the middle part, not only CQ but also SQ of the Yodel singing were much smaller than that of Belcanto singing in all three singers. However, accuracy of parameters in Belcanto singing of the yodler(KWS) and both Yodel singing and Belcanto singing of the training singer(CSK) were inferior to that of trained tenor singer(SDI). Possible advantages of utilizing Yodel singing training under the guidance of feedback control by the EGG for hyperfunctional voice disorders such as vocal nodules were discussed.

• 대한후두음성언어의학회지
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• 제9권1호
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• pp.53-58
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• 1998

Objectives : To compare the voice quality and voice problems of untrained professional voice user groups with that of normal control group without voice problem. Materials and Methods : The sustained vowel sounds of 13 male and 36 female teachers, 46 clergies and 15 telephone operators, and 40 normal male and 20 normal female persons were analyzed, using a videostroboscopy and acoustic analyzer. Together with these analyses, a questionnaire associated with risk factors for current and past voice problems was handed over to the patients. Results : The most common symptom in subjective groups was the voice fatigue. In stroboscopic examination, the professional voice user groups shelved functional voice disorder findings regardless of the Intensity of voice use. In the clergy and teacher using loud voice, vocal polyp, vocal nodule and hyperfunction of laryngeal muscle were frequently observed. In the clergy and telephone operator, jitter and shimmer were significantly increased. In the female teacher, the value of jitter, fundamental frequency variation and fundamental frequency were statiscally significant. However, the voice of male teacher showed no significant findings in the acoustic and aerodynamic studies. Conclusion : In the management of voice problems for untrained professional voice user groups, it is important to find the exact causes and patterns of voice problems, and to be individualized the management according to the causes.

• 대한후두음성언어의학회지
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• 제14권1호
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• pp.5-9
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• 2003

Introduction : Laryngomicrosurgery(LMS) is frequent procedure applying to benign and early malignant larygeal disease such as vocal cord polyp, nodule and early glottic cancer. LMS has been known as safe procedure and short time consuming treatment. So few reports about complications in LMS was done. In this study, complications and problems from LMS were investigated and reported. Method : From 2000, January to 2001, December, 180 patients who were treated with LMS in Asan medical center were studied by retrograde chart review. Results : In these patients, total 9 patients(5%) were suffered from complication. 4 patients (2%) had teeth injury and 4(2%) were suffered from foreign body sensation in tongue and 1(1%) had hypoglossal nerve injury. Main mechanism of complications is thought by pressure injury by laryngoscope blade. No definite correlation between procedure and complication was observed. Conclusion : There are few neural complications with LMS such as lingual and hypoglossal nerve injury. Before operation of LMS, warning and informing of complications by mechanical stress must be done. Gentle procedure and short operation time are necessary to avoid these problems. And patients who have risk factors of oral complications such as dental disease or dental prosthesis must have dental evaluation and treatment before LMS procedure.

• 대한기관식도과학회지
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• 제4권2호
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• pp.159-164
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• 1998

The developmental and subsequent addition of laser technology to existing surgical techniques offered new and exciting Possibilities for improving traditional endoscopic operations and expanding the scope of the specialty of otolaryngology-head and neck surgery. Lasers were found to be Precise, but potentially dangerous, surgical instruments whose use was associated with certain distinct and unprecedented advantages, but also with many unique and potentially serious, and sometimes catastrophic complications. The Purpose of this study was to evaluate the of elation technique of $CO_2$laser, kinds of anesthesia, equipments of operating room, and education of medical staff. Four hundreds 4 cases of $CO_2$laser laryngeal microsurgery were reviewed for the safety of $CO_2$laser in laryngeal microsurgery. Vocal polyp (46,3%) was the most common pathology in our cases. The others were vocal nodule, Reinke`s edema, epiglottic cyst, laryngeal granuloma, laryngeal papilloma, intracordal cysts, laryngeal tuberculosis, laryngeal web, laryngotracheal stenosis, and laryngeal cancer. Following complete equipment controls, treatment area controls, maintenance, service and procedural controls, personel protective equipment, and warning signs, no complications were found in our cases. In conclusion, laryngeal microsurgery with $CO_2$laser could be done safely without complication if complete preoperative preparation and education of medical staff preceded.

• 대한기관식도과학회:학술대회논문집
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• 대한기관식도과학회 1983년도 제17차 학술대회연제순서 및 초록
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• pp.6.4-7
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• 1983

애성은 후두의 발성기능 장애로 생기는 후두질환의 대표적인 주 증상이고 또한 초기에 나타나는 증상이기도 하며 문화가 발달하고 경제수준이 높아짐에 따라 환자자신들이 각종 후두질환에 대한 관심이 커지고 특히 암에 대한 의심 때문에 내원하는 경우가 많아지고 있다. 최근에 각종 후두질환에 대한 연구가 활발해지고 있으며 특히 음성 자체의 질에 대한 관심도가 증가하고 있다. 이런 점에 비추어 저자들은 애성을 주 증상으로 하는 후두질환의 실태를 파악하고 정확한 진단을 내리는데 도움이 되고자 1980년 1 월부터 1982년 12월까지 만 3년간 애성을 주 증상으로 본 교실 이비인후과 외래로 내원한 환자에 대해 다음과 같은 임상통계적 결과를 얻었다. 1) 이비인후과 외래 신환 총 10110명 중 애성을 주소로 내원한 환자는 228명으로 약 2.3 %였다. 2) 애성환자 228 명 중 남자는 115명, 여자는 113명으로 남녀 비는 거의 비슷하였다. 3) 원인질환 별로는 급성후두염이 43예(18.9%)로 가장 많았으며 만성후두염 36예(15.8%), 성대결절 30예(13.2%), 후두폴립 30예(13.2%), 성대마비 26예(11.4%), 후두악성 종양 18예(7.9%) 및 후두결핵 15예(6.6%) 의 순이었다. 기타 후두질환들로는 30 예로 13.2 %를 차지하였다. 4) 연령별 빈도는 40대에서 26.8 %로 가장 많았고 30대 18.9 %, 50대 17.1 %, 20대 15.8% 및 60대 9.6 %의 순이었다. 5) 발병부터 초진까지의 기간은 11일∼1개월(22.8 %)이 가장 많았으며 1개월∼3개월(19.7 %), 3개월∼6개월 (18.9 %), 10일이내 (13.6 %), 6개월 ∼1년(13.2 %), 1년∼3년(7.9 %)및 3년이상(3.9 %) 순이었다. 6) 각질환에 따른 발병부터 초진까지의 최다기간은 급성 후두염이 10일 이내, 만성후두염은 3개월∼6개월, 성대결절은 1개월∼3개월, 후두폴립은 3개월∼1년, 성대마비는 11일∼1개월, 악성암은 3개월∼1년 및 후두결핵은 11일∼1개월 등이었다. 7) 애성과 동반하여 나타나는 증상들로는 인두통이 25 %를 차지하며 가장 많았고 객담 8.8 %, 연하운동장애 7.9 %, 기침 6.6%, 호흡곤란 6.1% 순이었으며 애성 만을 호소했던 경우는 84예로 36.8%를 차지하였다.

• 대한후두음성언어의학회지
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• 제6권1호
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• pp.16-21
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• 1995

Clinical study was performed on 128 cases who complained of hoarsseness in according to causes therapies. which causes were newly known and advanced treatment methods were developed. The following results were obtained : 1) Among 128 cases, male was 45.3%, and female 54.7%, so sex ratio was 1:1.2. 2) The highest incidence of age causing hoarseness in order of frequency were 4th decade 30.5%, 5th decade 26.6% and 6th decade 24.8%. 3)The underlying diseases causing hoarsensess in oder of frequency were functional dysphonia 26.5%, laryngeal nodule 17.7% and chroic laryngitis 16.3%. 4) In view of the occupation. sterss group was 84.1% and non-stress group 15.9%. 5) The highest incidence of associated diseases in order of frequency were gastro intestinal diseases 29.7%, hypertension 9.4% and pulmonary tuberculosis 2.3%. 6) Vocal hygiene and voice therapy are the most needful therapeutic modalities.

• 대한기관식도과학회:학술대회논문집
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• 대한기관식도과학회 1982년도 제16차 학술대회연제순서 및 초록
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• pp.8.2-8
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• 1982

애성이란 음성의 질적 변화를 의미하는 것으로 이는 후두의 가장 대표적인 주 증상이다. 애성의 원인으로는 현재까지 알려져 있는것만 해도 약50 여종이 있다고 하며 그중 virus에 의한 상기도 감염증이 가장 많은 비율을 차지하고 있는 것으로 알려져 있고, 후두결절 및 풀립, 후두마비, 후두암, 후두유두종, 후두결핵등의 순으로 발생하는 것으로 알려져 있다. 최근 저자들은 본원에 입원중인 환자로서 애성 때문에 본 이비인후과로 진찰의뢰된 환자중 비교적 보기드문 질환과 동반된 애성환자 4예를 경험하였기에 문헌고찰과 함께 보고하는 바이다. 증예1. 29세 남자로서 교통사고로 후두부에 외상을 입은후 1 달만에 애성이 발생. 후두경 소견상 좌측성대의 paramedian paralysis 및 arytenoid cartilage의 전위가 인정되었음. 증예2. 53세 남자로서 clonorchis sinensis로 일반외과에서 전신 삽관마취하에 choledochostomy를 시행한 6 일후에 애성이 발생. 후두경 소견상 좌측성대의 median paralysis가 인정되었음. 증예3. 56세 남자로서 Aortic Aneurysm으로 내과에 입원한 환자로 입원전 3개월부터 애성이 발생. 후두경 소견상 좌측성대의 intermediate position paralysis 및 arytenoid cartilage의 전위가 인정되었음. 증예4. 74세 남자로서 Bronchogenic Ca.로 내과에 입원중인 환자로 입원 3년전부터 애성이 발생. 후두경 소견상 우측성대의 paramedian paralysis가 인정되었음

• 대한기관식도과학회지
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• 제2권1호
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• pp.111-119
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• 1996

The medical records of 87 patients with thyroid nodule treated from May 1992 to February 1996 were retrospectively reviewed to assess complication with age, sex, pathologic classification, location of lesions, and surgical procedures. The overall rate of complication were observed 10(11.5%) in thyroid surgery. The most common complication was transient hypoparathyroidism, which occurred in 6(6.9%) of 87 patients. The 2(2.3%) patients experienced Permanent hypoparathyroidism and each 1(1.1%) patient was reported in transient recurrent laryngeal nerve paralysis and hematoma.. Well-performed thyroid surgery usually produces few complications. More extensive resections, involving bilateral thyroidectomy are associated with a higher incidence of postoperative morbidity, in particular vocal cord paralysis and hypoparathyroidism, than procedures that consist essentially of unilateral thyroidectomy. Our experience suggests that the postoperative complication relates primarily to the surgical procedure. The low incidence of permanent complications in thyroid surgery suggests the feasibility of total thyroidectomy as the operation of choice when thyroid nodules were malignant and surgeons are familiar with the technique and indications.