• 대한한방소아과학회지
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• 제14권1호
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• pp.153-168
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• 2000

The cough is one of the most common respiratory symptom in children. Boeumjunggi-tang(BEJG) is herbal medicine mainly treat cough due to yin deficiency(陰虛咳嗽) in Oriental Medicine. During 3 momths from February, 1, 2000 to April, 30, 2000, BEGJ is administered to the pediatric out-patients with the cough due to yin deficiency have visited Pundang Dongguk Oriental medicine Hospital and among these patients, this study is performed for 50 patients of which the result of treatment could be gained. The conclusion is following. 1. In the distribution of patients, male(60%) is more than female(40%) and group of age in between 1 and 6 years(76%) are the first. 2. In the type of cough, group of chronic(more than 3 weeks), and group that the symptom make worse in night are the most. 3. In the distribution of remedial effect, group of symptom-relieved is the first(58%), symptom-disappearing is second(22%), symptom-unchanging is third(14%), symptom-aggravated is fifth(6%). 4. The chracteristic of cough have little influence on the remedial effect of BEGJ.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제8권2호
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• pp.143-149
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• 2005

목 적: 병적 위식도 역류 환자에서 후두인두부 산도를 검사하여 후두인두부 역류와 호흡기 증상과의 상관관계를 연구하고자 하였다. 방 법: 2003년 2월부터 2004년 9월까지 잦은 구토 등 위식도 역류가 의심되는 증상이 있거나 만성 재발성 호흡기 증상이 있어 24시간 후두인두부와 식도에서 산도 검사를 실시한 39명 중 병적 위식도 역류를 보인 29명을 대상으로 하였다. 병적 위식도 역류의 기준은 95백분위수 이상 역류 지표를 병적 역 류로 정의하였고, 후두부 인두 산 역류의 기준은 식도에서 pH 4 이하로 떨어짐과 동시에 후두부 인두에서 pH가 4 이하로 떨어지는 것으로 정의하였다. 결 과: 1. 산도 검사를 실시한 39명에서 호흡기 증상이 있는 7명 중 6명(86.%), 호흡기 증상이 없는 32명 중 23명(72%)에서 병적 위식도 역류를 보였다. 2. 호흡기 증상으로는 반복되는 폐렴 2명, 크룹 1명, 후두연화증 1명, 천식 2명 등이었다. 3. 호흡기 증상을 동반한 병적 역류군에서 후두인두부와 식도의 역류 지표를 비교하면 5분 이상 지속된 역류의 횟수 제외한 역류 지수, 총 역류 횟수, 최 장 역류 시간 등에서 통계학적으로 의의있는 차이를 보였다. 4. 호흡기 증상을 동반하지 않은 병적 역류군에서 후두인두부와 식도의 모든 역류 지표들이 유의한 차이를 보였다. 5. 식도에서 호흡기 증상을 동반한 병적 역류군과 호흡기 증상을 동반하지 않은 병적 역류군의 역류지표를 비교하면 총 역류 횟수를 제외한 역류 지수, 최장 역류 시간, 5분 이상 지속된 역류의 횟수에서 통계학적 의의가 없었다. 6. 후두부 인두에서 호흡기 증상을 동반한 병적 역류군과 호흡기 증상을 동반하지 않은 병적 역류군의 역류 지표를 비교하면 모든 항목에서 통계학적 의의가 없었다. 결 론: 병적 위식도 역류 환자에서 호흡기 증상 유무와 관계없이 후두인두부의 산도 검사 결과는 통계학적 의의가 없으므로 만성 호흡기 질환에서 후두인두부 역류와의 상관관계의 규명에 후두인두부 산도 검사의 유용성에 대한 재고가 필요하다.

• Safety and Health at Work
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• 제10권4호
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• pp.428-436
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• 2019

Background: Metalworking fluids (MWFs) are mixtures with inhalation exposures as mists, dusts, and vapors, and dermal exposure in the dispersed and bulk liquid phase. A quantitative risk assessment was performed for exposure to MWF and respiratory disease. Methods: Risks associated with MWF were derived from published studies and NIOSH Health Hazard Evaluations, and lifetime risks were calculated. The outcomes analyzed included adult onset asthma, hypersensitivity pneumonitis, pulmonary function impairment, and reported symptoms. Incidence rates were compiled or estimated, and annual proportional loss of respiratory capacity was derived from cross-sectional assessments. Results: A strong healthy worker survivor effect was present. New-onset asthma and hypersensitivity pneumonitis, at 0.1 mg/㎥ MWF under continuous outbreak conditions, had a lifetime risk of 45%; if the associated microbiological conditions occur with only 5% prevalence, then the lifetime risk would be about 3%. At 0.1 mg/㎥, the estimate of excess lifetime risk of attributable pulmonary impairment was 0.25%, which may have been underestimated by a factor of 5 or more by a strong healthy worker survivor effect. The symptom prevalence associated with respiratory impairment at 0.1 mg/㎥ MWF was estimated to be 5% (published studies) and 21% (Health Hazard Evaluations). Conclusion: Significant risks of impairment and chronic disease occurred at 0.1 mg/㎥ for MWFs in use mostly before 2000. Evolving MWFs contain new ingredients with uncharacterized long-term hazards.

• 대한한의학회지
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• 제44권4호
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• pp.41-58
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• 2023

Objectives: This retrospective observational study aimed to investigate the efficacy and safety of Cheongpebaedok-tang, a traditional Korean herbal medicine, provided via telemedicine to patients with asymptomatic to mild COVID-19 in Korea. Methods: From February to April 2020, a retrospective analysis investigated COVID-19 patients treated via Korean telemedicine. The study involved asymptomatic to mild cases receiving Cheongpebaedok-tang more than three times, along with continuous Korean medicine care in convalescence. Diagnoses and treatment adhered to the telemedicine guidelines of the Association of Korean Medicine, with varied Cheongpebaedok-tang prescriptions based on symptom severity. Symptom evaluation involved a detailed assessment using a 15-item tool at initial and final sessions. Results: The study included 27 patients, with a mean age of 48.7 ± 2.3 years (mean ± standard error). Patients began self-administering oral Cheongpebaedok-tang for an average of 19.4 ± 1.8 days after the date of COVID-19 diagnosis confirmation and continued the medication for 15.8 ± 1.2 days. The reported side effects of the Cheongpebaedok-tang included palpitations (11.1%), insomnia (7.4%), dizziness (3.7%), and diarrhea (3.7%). All side effects disappeared after adjusting the prescription according to standard treatment guidelines. The occurrence of all COVID-19-related adverse symptoms, except fatigue and myalgia, decreased. Fatigue was the most common chronic symptom persisting after 6 months (51.9%), followed by ocular symptoms (37.0%) and sore throat (22.2%). Conclusions: This study implies Cheongpebaedok-tang may offer a potentially safe, symptom-alleviating approach for managing mild COVID-19 cases via telemedicine, although further comprehensive research is warranted.

• Journal of Preventive Medicine and Public Health
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• 제27권2호
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• pp.274-285
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• 1994

The effects of resin on the respiratory health have been investigated in 309 workers from four iron and steel foundries and the results compared with those from 122 workers who were not significantly exposed to resin gas and silica dust at the same industries. Phenol-formaldehyde resin was used in the core making and molding processes and workers were exposed to their decomposition products as well as to silica dust containing particulates. The subjects were grouped according to formaldehyde, dust and other gas exposures, and smoking habits were considered also in thi analysis. Standardized respiratory symptom questionnaire was administered by trained interviewers. Chest radiograph, pulmonary funtion tests, and methacholine challenge tests were done. Environmental measurements at the breathing zone were carried out to determine levels of formaldehyde, respiable dust and total dust. Foundry workers had a higher prevalence of symptoms of chronic bronchitis with chronic phlegm and chronic cough when exposed to dust. Exposure to gas was significantly associated with lowered $FEV_1$ and obstructive pulmonary function changes. Exposure to formaldehyde and phenol gas was associated with wheezing symptom among workers, but $FEV_1$ changes after methacholine challenge were not significantly different among different exposure groups. When asthma was defined as the presence of bronchial hyperreactivity with more than 20% decrease in $FEV_1$ after methacholine challenge, 17 workers out of 222 tested had asthma. Fewer asthmatic welters were found among groups exposed to formaldehyde, gas and dust, which indicates a healthy worker effects ill a cross-sectional study. The concentration of formaldehyde gas ranged from 0.24 to 0.43 ppm among studied foundries. The authors conclude that formaldehyde and phenol gas from combusted resin is probably the cause of asthmatic symptoms and also a selection force of those with higher bronchial reactivity away from exposures.

• Tuberculosis and Respiratory Diseases
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• 제44권1호
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• pp.146-153
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• 1997

연구배경 : 만성기침은 비흡연 성인호흡기환자의 14% - 23%에서 관찰되는 흔한 호흡기 증상이다. 만성기침의 원인으로는 후비루증후군이 가장 흔하며 기침형 천식도 만성기침 환자의 29%에서 보고되고 있지만 우리나라의 정확한 통계는 없다. 이에 저자들은 기관지과민성을 측정하여 만성기침의 원인이 되는 후비루 증후군, 기침형 천식, 단순 기관지염의 빈도를 조사하였고, 각 질환군에서 아토피와 흡연의 영향을 분석하였다. 대상 및 방법 : 3주이상의 만성기침을 주소로 내원하여 흉부청진과 단순 흉부사진에서 정상소견을 보이는 46명의 만성기침 환자와 기관지천식 환자 45명, 알레르기성비염 환자 16명, 정상대조군 25명을 대상으로 병력의 문진, 진찰소견, 폐기능 검사, 비특이적 기관지 유발검사, 즉시형 피부반응검사를 시행하였고 단순 흉부사진 및 부비동 사진을 촬영하였다. 결 과 : 만성기침 환자에서 기침형 천식은 17.4%, 단순기관지염은 21.7%, 후비루 증후군은 35%, 원인을 규명하지 못한 경우가 25.9% 였다. 만성기침환자중 기관지 과민반응의 양성율은 35% 로 정상 대조군과 알레르기성 비염군과 비교하여 의미있게 기관지 과민성이 증가되어 있었고, 후비루 증후군이 있는 환자중 44% 에서 기관지 과민반응에 양성이었다. 만성기침환자에서 기관지 과민성에 영향을 주는 요인으로 동반된 호흡기 증상의 유무와 관련성 있는 경향을 보일뿐, 후비루 증후군, 코증상, 흡연, 폐환기 기능이상, 피부반응검사, 부비동염의 유무와는 무관하였다. 또한 각 질환군에서 아토피나 흡연과의 연관성은 없었다. 결 론 : 만성기침환자는 정상대조군과 알레르기성 비염에 비해 기관지 과민성이 증가되어 있었으나 기관지 과민성에 영향을 주는 요인은 호흡기 증상의 유무만이 관련성 있는 경향을 보였으며 아토피와 흡연과의 연관성은 관찰할 수 없었다.

• The Korean Journal of Physiology and Pharmacology
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• 제28권3호
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• pp.229-237
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• 2024

Cough is a common symptom of several respiratory diseases. However, frequent coughing from acute to chronic often causes great pain to patients. It may turn into cough variant asthma, which seriously affects people's quality of life. For cough treatment, it is dominated by over-the-counter antitussive drugs, such as asmeton, but most currently available antitussive drugs have serious side effects. Thus, there is a great need for the development of new drugs with potent cough suppressant. BALB/c mice were used to construct mice model with cough to investigate the pharmacological effects of pectolinarigenin (PEC). Hematoxylin-eosin and Masson staining were used to assess lung injury and airway remodeling, and ELISA was used to assess the level of inflammatory factor release. In addition, inflammatory cell counts were measured to assess airway inflammation. Airway hyperresponsiveness assay was used to assess respiratory resistance in mice. Finally, we used Western blotting to explore the potential mechanisms of PEC. We found that PEC could alleviate lung tissue injury and reduce the release of inflammatory factors, inhibit of cough frequency and airway wall collagen deposition in mice model with cough. Meanwhile, PEC inhibited the Ras/ERK/c-Fos pathway to exhibit antitussive effect. Therefore, PEC may be a potential drug for cough suppression.

• Tuberculosis and Respiratory Diseases
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• 제72권4호
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• pp.367-373
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• 2012

Background: Chronic obstructive pulmonary disease (COPD) is now regarded as a heterogenous disease, with variable phenotypes. Acute exacerbation of COPD is a major event that alters the natural course of disease. The frequency of COPD exacerbation is variable among patients. We analyzed clinical features, according to the frequency of acute exacerbation in COPD. Methods: Sixty patients, who visited Gyeongsang National University Hospital from March 2010 to October 2010, were enrolled. Patients were divided into two groups, according to their frequency of acute exacerbation. Frequent exacerbator is defined as the patient who has two or more exacerbation per one year. We reviewed patients' medical records and investigated modified Medical Research Council (MMRC) dyspnea scale, smoking history and frequency of acute exacerbation. We also conducted pulmonary function test and 6-minute walking test, calculated body mass index, degree of airway obstruction and dyspnea and exercise capacity (BODE) index and measured CD146 cells in the peripheral blood. Results: The number of frequent exacerbators and infrequent exacerbators was 20 and 40, respectively. The frequent exacerbator group had more severe airway obstruction (forced expiratory volume in one second [$FEV_1$], 45% vs. 65.3%, p=0.001; $FEV_1$/forced vital capacity, 44.3% vs. 50.5%, p=0.046). MMRC dyspnea scale and BODE index were significantly higher in the frequent exacerbator group (1.8 vs. 1.1, p=0.016; 3.9 vs. 2.1, p=0.014, respectively). The fraction of CD146 cells significantly increased in the frequent exacerbator group (2.0 vs. 1.0, p<0.001). Conclusion: Frequent exacerbator had more severe airway obstruction and higher symptom score and BODE index. However, circulating endothelial cells measured by CD146 needed to be confirmed in the future.

• Tuberculosis and Respiratory Diseases
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• 제82권1호
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• pp.35-41
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• 2019

Background: Pulmonary tuberculosis can result in anatomical sequelae, and cause airflow limitation. However, there are no treatment guidelines for patients with a tuberculosis-destroyed lung. Recently, indacaterol effectiveness in chronic obstructive pulmonary disease (COPD) patients with Tuberculosis history (INFINITY) study revealed indacaterol provided bronchodilation and symptom improvement in COPD patients with a tuberculosis-destroyed lung. Methods: We conducted a post-hoc subgroup analysis of the randomized controlled trial, the INFINITY study, to determine factors associated with indacaterol response in a tuberculosis-destroyed lung with airflow limitation. Data from 68 patients treated with inhaled indacaterol, were extracted and analyzed. Factors associated with the response of forced expiratory volume in one second ($FEV_1$) to indacaterol treatment, were determined using linear regression analysis. Results: Of 62 patients included, 68% were male, and 52% had history of cigarette smoking. Patients revealed mean $FEV_1$ of 50.5% of predicted value with mean improvement of 81.3 mL in $FEV_1$ after indacaterol treatment for 8 weeks. Linear regression analysis revealed factors associated with response of $FEV_1$ to indacaterol included a short duration of smoking history, and high short-acting bronchodilator response. When patients with history of smoking were excluded, factors associated with response of $FEV_1$ to indacaterol included high short-acting bronchodilator response, and poor health-related quality of life score as measured by St. George's Respiratory Questionnaire for COPD. Conclusion: In a tuberculosis-destroyed lung with airflow limitation, short-acting bronchodilator response and smoking history can play a critical role in predicting outcomes of indacaterol treatment.

• 대한한방소아과학회지
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• 제12권1호
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• pp.77-94
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• 1998

Chronic cough is one of the most common respiratory symptoms, especially in children. And it can be the sale presenting manifestation of bronchial asthma. Although most coughs are self limiting, chronic cough often proves to be a frustrating problem. It is commonly defined as a persistent or recurrent cough exceeding 3weeks duration. The post nasal syndrome has been determined to be the most common cause of chronic cough, followed by asthma, chronic bronchitis, gastroesophageal reflux and bronchiectasis. This study was performed at both City-Oriental Medicine Hospital and Pundang Cha Oriental Medicine Hospital from January,1,1998 to November 31,1998, and 114 children with chronic cough persisting for longer than 3 weeks were evaluated. We investigated the clinical findings and evaluated the etiology in children with chronic cough syndrome including: type of cough (with or with out sputum and daily onset) and associated signs & symptoms. The results were as follows: The most common cause of chronic cough was asthma with sinusitis (27.2%); The second and third were post nasal drip syndrome(22.8%) and bronchial hypereactivitic cough(14.9%). The other causes included asthma, paranasal sinusitis, bronchitis and rhinitis. Therefore, in the diagnostic and therapeutic approach to this symptom, it should be considered that the cause of this type of cough is either bronchus and pulmonary disease or that associated with another problem, especially sinusitis, gastroesophageal reflux and allergic disease. Also, in infants and toddlers, congenital abnormaly should be considered.