• The Journal of the Korean bone and joint tumor society
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• v.11 no.1
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• pp.105-109
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• 2005

This journal reports three cases diagnosed with schwannomatosis in which no clinical symptoms of type 2 neurofibromatosis. The chief complain was pain. In adolescence and adult group, all masses were found. The locations were brachial plexus, popliteal fossa and hand. No hearing impairment, vertigo, tinnitus and visual disturbance was observed in any of the case. Family history was negative. In all cases, there was no evidence of vestibular schwannoma on cranial MRI imaging study. In all cases, Tinel sign was positive. Pathologic diagnosis was positive for schwannoma. Further study and case collection is needed to idenity the clinical manifestation, clinical course and genetic characteristic of schwannomatosis.

• Proceedings of the KOR-BRONCHOESO Conference
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• 1977.06a
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• pp.3.1-3
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• 1977

Now a lot of antibiotics are available for daily clinical use. Streptomycin, above all them, is widely used because of its effects upon tuberculosis. Recently, however, the ototoxic effects of SM was noticed especially on the vestibular sensory organs, so called, SM deafness. The authors have clinically investigated the incidence of SM deafness of 198 cases of admission at Masan National Hospital for treatment of pulmonary tuberculosis. The results obtained were follows; 1. The incidence of SM deafness was 30 cases (15.2%) of total 198 cases. 2. SM deafness had a tendency to increase according to amount of administrated SM dose. 3. The administration of SM 1.0 gm. daily (17.4%) resulted in more frequent incidence than that (2.9%) of 1.0gm. single dose, twice a week. 4. The complication due to SM administration was 59 cases (2.98%). Among them, tinnitus was the most frequent symptom recording 14 cases (46.7%). 5. SM deafness had a tendency to begin with high frequency and than progress gradually to speech range. 6. As concern of type of audiogram, gradual descending type (40.0%) and horizontal type(30.3%) were the most frequent.

• Journal of Preventive Medicine and Public Health
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• v.19 no.2 s.20
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• pp.224-232
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• 1986

This study was conducted to evaluate health consequences of phenol resin workers for 6 weeks from February 21, to March 28, 1986. The subject population was 26 in a factory with phenol resin and control group was 30 non-exposed workers who were working in the other factory. The biological parameters chosen for this study were phenol concentration in working room-air, total phenol level in urine and BUN of phenol resin workers. The phenol concentration in working room-air and total phenol in urine were significantly correlated (r=0.791, p<0.01). The frequency of symptom and sign in phenol resin workers were higher than control group. The frequent symptom and sign were coughing, weight loss, poor appetite, headache, dyspnea, eye irritation and tinnitus, in order. Total phenol in urine was not reversed to normal range in spite of interruption of exposure for 4 days. The BUN value in blood and total phenol in urine were not correlated.

• Journal of Oriental Neuropsychiatry
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• v.32 no.3
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• pp.285-302
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• 2021

Objectives: To examine the effect of long-term Korean medicine treatment on mild cognitive impairment (MCI). Methods: This study was conducted on two patients who were diagnosed with mild cognitive impairment and received long-term Korean medicine treatment. In order to evaluate the degree of cognitive decline, SNSB and K-MMSE were performed 2~3 times at the first visit and during the treatment process. Results: Both cases 1 and 2 were diagnosed with MCI with a high possibility of developing dementia. In case 1, MCI progressed to early dementia at one year after the diagnosis of MCI. However, in case 2, that MCI status was maintained without progressing to dementia for 4 years after the diagnosis of MCI. The cause of such difference in the course of MCI might be attributed to the fact that Case 1 had lower K-IADL level but higher SGDS level than Case 2 at the time of initial diagnosis, with weak family support and irregular herbal medicine intake. Conclusions: Korean medicine treatment could improve and manage symptoms of cognitive decline due to MCI.

• The Journal of the Acoustical Society of Korea
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• v.41 no.1
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• pp.70-75
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• 2022

The critical bandwidth represents response interactions with respect to a signal tone and their neighboring bands. This study was to analyze the critical bandwidths of a clinically important 500 Hz tone in Korean young male and female subjects (male = 10, female = 10) at a conversational level (60 dB HL). Data were measured with notched band noise and two alternative forced choice methods. Results showed that the critical bandwidth was slightly greater (95 Hz) than the previous Western measures. There were no statistically significant differences in gender, nor were there any significant differences in lateralization of the ear (p > 0.05). These results may have implications in optimizing effective tinnitus masking or the related clinical applications.

• Journal of the Korean Orthopaedic Association
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• v.55 no.1
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• pp.85-89
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• 2020

Bow hunter's syndrome is a rare disease that shows the symptoms of vertebrobasilar insufficiency resulting from a dynamic obstruction or stenosis of the vertebral arteries during neck movement. This paper reports a case of a 59-year-old male who visited the emergency room with diplopia, tinnitus, and gait disturbance. Magnetic resonance imaging and angiography revealed a multiple cerebellar infarct, total obstruction of the right vertebral artery, and dynamic obstruction of the left vertebral artery during neck extension. As the infarction worsened, a thrombectomy was done. Posterior decompression and fusion at C5-6 were performed for the left vertebral artery. The left vertebral arterial patency was confirmed by intraoperative and postoperative angiography. No recurrence of the symptoms was observed for six months after surgery. Physicians need to pay attention to the diagnosis of vertebrobasilar insufficiency caused by an obstruction of the vertebral arteries during neck extension in cervical instability patients.

• Journal of Preventive Medicine and Public Health
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• v.29 no.2 s.53
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• pp.239-254
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• 1996

Health services on industrial noisy environment have been provided only for noise-induced hearing loss management until now. But gradually, modem diseases and death have come to be related to stress and mental health deeply, therefore noise-induced mental disorder, like a stress became very important. In this point, the purpose of this study was to analyze the relationship between noise exposure level in worksite and workers' stress symptoms. This study included a survey of 786 manual workers selected from 89 worksites in 21 factories in Puchon. The results were as follows: 1. For demographic characteristics, most of the workers were males(80.8%), the $20\sim29years$ old were 34.5% and those who graduated from high school were 65.3%. The workers whose monthly income ranged from 100,000 to 800,000 won were 37.5% and who have a religion were 47.9%. 2. For occupational characteristics, workers who had worked $1\sim5$ years in the factories were 33.0%. Those who were much for them workload were 43.9% and who worked more than 8 hours a day were 73.9%. Those who were disatisfied with their job and pay were 31.9% and 50.6%. The workers who responsed ventilation condition of their worksites were bad were 51.9% and the dissatisfed with working environment of their worksites were 45.9%. 3. Workers who were suffering from tinnitus were 53.3% and those who perceived hearing loss were 50.1%. Persons who reported they always wore earplugs at work were 35.4%. Those who felt earplugs bigger than their ears were 30.6% and those who experienced eardiseases caused by earplugs were 25.6%. 4. For the noise exposure level in worksite, workers who were exposed to $80\sim90dB$ were 30.3%, $90\sim100dB$ were 26.4% and $50\sim70dB$ were 19.2%. 5. Workers' stress symptoms were significantly related to marital status and their monthly income(p<0.05). Workers who were single and had lower monthly income showed higher PSI (Psychiatric Symptom Index) scores than those who were married and had higher monthly income. Higher PSI scores were also significantly related to $1\sim2$ days hight-work per week, much for them workload, dissatisfaction with their job, and bad relationship with their bosses and coworkers. 6. Higher PSI scores were significantly related to severe tinnitus and perceived hearing losso(p<0.001). Workers who felt the earplugs they use did not fit their ears showed significantly higher PSI scores(p<0.01). Workers who reported that they did not feel they need earplugs showed. significantly higher PSI scores (p<0.05). Increased experience of eardisease caused by earplugs that did not fit were also significantly related to higher PSI scores(p<0.01). 7. The higher noise exposure level in worksite from 80dB was, the more severe stress symptoms including PSI subparts were reported; Anxiety, Anger, Depression, and Cognitive disorder(p<0.001). 5. According to the results of stepwise multiple regression analysis, factors affecting workers' PSI scores were perceived hearing loss$(R^2=0.160)$, noise exposure level in worksite$(R^2=0.110)$, realtionship with coworkers, amount of workload, monthly income and relationship with bosses orderly and the total $R^2$ of this 6 factors was 0.371. 9. The most significant factors that have impact on manual workers' stress symptoms were perceived hearing loss and noise exposure level in worksite, especially noise exposure level in the worksite was the most affective factor on the depression symptom.

• Journal of the Korea Convergence Society
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• v.11 no.7
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• pp.97-104
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• 2020

The Purpose of this paper was to explore the effect of hearing impairment on HRQOL in Korean elders. We carry out a cross-sectional analysis using nationally representative data from the KNHANES, 2018. A total of 528 elders who had hearing impairment were included. Statistical analysis was performed using SPSS 25.0, χ²-test, t-test, correlation, and regression analysis to confirm the quality of life, and the influencing factors. There were significant differences in HRQOL according to gender, age, education, marital status, income, occupation, number of household members, tinnitus, number of comorbidities, smoking status, alcohol drinking status, subjective health status, regular exercise, restriction of activity, depressive mood and perceived stress. The results indicated that age, BMI and number of comorbidities had a significant negative association with HRQOL. In addition, marital status, number of comorbidities, body mass index, subjective health status, regular exercise, restriction of activity and perceived stress were predictors of life quality in elders with Hearing Impairment and the variable in the health-related quality of life was explained by 37.3%. In order to improve the HRQOL of elders with hearing impairment, multidisciplinary efforts and development of educational programs are required.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.34 no.3
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• pp.92-101
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• 2021

Objectives : Otomycosis is superficial fungal infection of external auditory canal accompanied with itching, pain, discharge, hearing loss, tinnitus and ear fullness. And chronic inflammation like chronic suppurative otitis media exacerbates otomycosis. The purpose of this study is to report one case of Korean medical treatment for otomycosis with chronic suppurative otitis media. Methods : This study was conducted with one case of otomycosis with chronic suppurative otitis media patient hospitalized in Ophthalmology, Otolaryngology & Dermatology Clinic of Korean medical Hospital. This patient was treated with Korean medical treatment including herbal medicine, acupuncture, pharmacopuncture and venesection. After the treatment, we took picture of external auditory canal by otoscope and evaluated subjective symptoms. Results : After the treatment, this patient had improved condition of external auditory canal and subjective symptoms. Conclusions : This study suggests that Korean medical treatment may be effective for otomycosis with chronic suppurative otitis media.

• Tuberculosis and Respiratory Diseases
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• v.42 no.3
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• pp.295-301
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• 1995

Background: The serious problems in retreatment of pulmonary tuberculosis are a significant proportion of drug resistance. Preferably retreatment should contain the drugs which has never used before, so drug retreatment is limited in selection. A new antibacterial substance, ofloxacin(OFX) is the activity against mycobacterium tuberculosis and it has been used in the treatment of pulmonary tuberculosis. The present report concerns the result of retreatment of pulmonary tuberculosis patients containing OFX treated at National Kongju Tuberculosis Hospital. Method: A retrospective study was made through the regular follow up of 92 smear positive cases, who were treated by four drugs regimen between Mar 1991 and June 1994 at National Kongju Tuberculosis Hospital. Four drugs were, namely prothionamide, cycloserine, ofloxacin and streptomycin(kanamycin or tuberactinomycin). The duration of follow up was over one year. Results: 1) Out of 92 cases with positive sputum AFB smear, 67(73%) achieved the negative conversion. 2) Considering the negative sputum conversion in all the groups, the vast majority(85%) of sputum conversion occurred within the first 4 months. 3) The roentgenological improvement occurred in 49 percent on the whole and when the extent of disease was minimal, moderately, far advanced pulmonary tuberculosis, sputum AFB smear negative response to retreatment was 100%, 93%, 68%, respectively. 4) When the duration of patient's illness was less than 1 year, 1 to 3 years, 3 to 5 years and more than 5 years, sputum AFB smear negative response to retreatment was 87%, 76%, 65% and 55%, respectively. 5) Adverse reaction to prothionamide, with complaints of gastrointestinal troubles was common and hepatic dysfunction without jaundice was observed in 7 percent, convulsion in 1 percent, that to cycloserine occurred renal dysfunction & psycosis & convulsion, 2%, 1%, 1%, respectively. Tinnitus with KM occurred in 1% and dirrhea with OFX in 4%. Conclusion: The duration of patient's illness was shorter, sputum AFB smear negative response rate was better. Radiologic responses were not remarkable, but extent of disease by national tuberculosis association was smaller, the result of retreatment was better. Adverse reaction of the secondary antituberculosis agent was mainly observed gastrointestinal troubles, as regard to tolerance to the secondary drugs the role of the physician is of very important value and toxic effects can be overcome by the strong confidence.