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소세포폐암 환자에서 1차 항암 치료제로서 Irinotecan과 Cisplatin 병합요법에 관한 2상 연구
정혜철 ( Hye Cheol Jeong ),이상엽 ( Sang Yeub Lee ),김정하 ( Jung Ha Kim ),하은실 ( Eun Sil Ha ),정진용 ( Jin Yong Jung ),이경주 ( Kyung Ju Lee ),이승현 ( Seung Hyeun Lee ),김세중 ( Se Joong Kim ),이은주 ( Eun Joo Lee ),허규영 ( G 대한결핵 및 호흡기학회 2006 Tuberculosis and Respiratory Diseases Vol.60 No.1
중등증 이상의 COPD 환자에서 흡입용 스테로이드와 지속성 β2-항진제 복합제제 사용시 용량의 차이가 급성악화에 미치는 영향
정혜철 ( Hye Cheol Jeong ),하은실 ( Eun Sil Ha ),정진용 ( Jin Yong Jung ),이경주 ( Kyung Ju Lee ),이승현 ( Seung Hyeun Lee ),김세중 ( Se Joong Kim ),이은주 ( Eun Joo Lee ),허규영 ( Gyu Young Hur ),이승룡 ( Sung Yong Lee ),김제형 ( 대한결핵 및 호흡기학회 2005 Tuberculosis and Respiratory Diseases Vol.59 No.2
흉수의 감별 진단 시 Soluble Triggering Receptor Expressed on Myeloid Cells-1 (sTREM-1)의 유용성
김정현 ( Jung Hyun Kim ),박은영 ( Eun Young Park ),김원희 ( Won Hee Kim ),박웅 ( Woong Park ),정혜철 ( Hye Cheol Jeong ),이지현 ( Ji Hyun Lee ),김은경 ( Eun Kyung Kim ) 대한결핵 및 호흡기학회 2007 Tuberculosis and Respiratory Diseases Vol.62 No.4
연구배경: 흉수는 다양한 원인에 의하여 생성되며 임상적으로 여출액과 삼출액으로 구분하게 되며 삼출액일 경우에는 그 원인 질환들을 감별해야 하나 적용할 만한 표지자가 많지 않다. Soluble Triggering Receptor Expressed on Myeloid cells(sTREM-1)는 면역글로블린의 일종으로 세균이나 진균 감염에서 증가된다고 보고되어 있으며 활성화된 탐식세포에서 떨어져 나와 체액에서도 수용성 상태로 발견될 수 있다. 저자들은 흉수에서 sTREM-1의 측정이 흉수의 감별 진단에 유용한지와 감염성 질환에 의한 흉수에 대한 표지자로서 유용한지에 대한 가능성을 알아보고자 하였다. 대상 및 방법: 2004년 3월부터 2005년 12월까지 흉수를 주소로 내원한 환자들에서 흉수의 세포 수 및 백혈구 분획, 생화학적 검사(pH, protein, LDH, glucose), 세포진 검사, ADA, 미생물학적 검사 결과 이외에 sTREM-1을 측정하였다. 대상환자는 48명으로 남:여 각각 27:21명이었고, 평균 연령은 59세였다. 최종 진단은 암성 흉수는 13명, 결핵성 흉수는 14명, 부폐렴성 흉수는 17명, 여출성 흉수는 4명이었다. 결과: 흉수의 sTREM-1은 부폐렴성 흉수에서 344.0±488.7 pg/mL로 결핵성 흉수(81.7±56.6 pg/mL)와 악성 흉수(39.3±19.6 pg/mL)보다 높게 측정되었다. 부폐렴성 흉수에 대한 sTREM-1의 ROC 곡선 결과 55.4 pg/mL에서 민감도와 특이도가 각각 70.6%와 74.1%로 측정되었다. 또한 흉수 sTREM-1은 흉수의 호중구수, 흉수 LDH, 흉수/혈청 LDH, 흉수 ADA와 유의한 상관관계를 보였다. 결론: 흉수의 sTREM-1은 부폐렴성 흉수에서 다른 원인의 흉수에서보다 유의하게 상승되어 부폐렴성 흉수의 표지자로서 유용하였으며 기존의 진단 표지자에 더하여 흉수의 감별진단에 유용할 것으로 생각된다. Background: The currently available diagnostic markers for pleural effusion have a limited role. The soluble triggering receptor expressed on myeloid cells-1 (sTREM-1) is a molecule recently reported to play an important role in the myeloid cell mediated inflammatory response, and is up regulated in the body fluid by bacterial or fungal products. This study examined the expression of sTREM-1 in pleural effusion. Methods: Between April 2004 and December 2005, 48 patients with pleural effusions were enrolled in this study. The pleural fluids were taken and analyzed for the total protein, glucose, lactate dehydrogenase (LDH), adenosine deaminase (ADA), and sTREM-1. Bacterial cultures and cytology tests were also performed. Results: The clinical diagnoses were 17 parapneumonic, 14 tuberculous, and 13 malignant effusions. Four patients presented with transudates. The mean ages of the parapneumonic, tuberculous and malignant effusion groups were 57.1±19.7, 49.5±18.6, 66.9±15.5, and 76.0±18.1. respectively. The level of sTREM-1 expression was significantly higher in the parapneumonic effusions (344.0±488.7) than in the tuberculous effusions (81.7±56.6) and malignant effusions (39.3±19.6). With a cut-off value of 55.4pg/ml, the sensitivity and specificity for a parapneumonic effusion was 70.6% and 74.1%. Conclusion: sTREM-1 expression is significantly higher in parapneumonic effusions, suggesting its potential role as an additional diagnostic marker for pleural effusions. (Tuberc Respir Dis 2007; 62: 290-298)
호홉기 호산구성 염증을 동반한 기관지 협착이 폐암으로 오인된 증례
홍원정 ( Won Jung Hong ),박치영 ( Chi Young Park ),고은정 ( Eun Jung Ko ),조상호 ( Sang Ho Cho ),정소영 ( So Young Chong ),정혜철 ( Hye Cheol Jeong ) 대한내과학회 2014 대한내과학회지 Vol.87 No.6
We report a very unusual case of endobronchial involvement of eosinophilic inflammation. A 58-year-old woman visited our clinic complaining of cough. A chest computed tomography scan showed a poorly enhancing mass compressing both main bronchi in the subcarinal area. Bronchoscopy also showed stenosis of the two main bronchi with irregular mucosal thickening. A bronchoscopic endobronchial mucosal biopsy revealed eosinophilic inflammation without evidence of malignancy. The subcarinal mass disappeared after systemic steroid treatment. This is the first report of mass-forming eosinophilic infiltration involving the central airway mimicking primary lung cancer. (Korean J Med 2014,87:733-737)
정기환 ( Ki Hwan Jung ),허규영 ( Gyu Young Hur ),정혜철 ( Hye Cheol Jeong ),이승룡 ( Sung Yong Lee ),이상엽 ( Sang Yeub Lee ),김제형 ( Je Hyeong Kim ),신철 ( Chol Shin ) 대한내과학회 2006 대한내과학회지 Vol.71 No.5
Chemical pneumonitis usually occurs after occupational exposure and inhalation of various noxious gases, fumes and chemical compounds. There have been reports of different clinical cases after inhalation of many organic acids, but chemical pneumonitis after nitric acid inhalation has rarely been reported, especially in Korea. Nitric acid is a strong acid that`s commonly used in the industrial field and its respiratory exposure can cause diverse reactions, including pulmonary edema. We experienced a 34 year-old patient who had an excessive cough and dyspnea after an acute massive exposure to nitric acid fumes at his workplace, where they refined and polished the metals. He was tachypneic and the arterial blood gas analysis showed hypoxemia on hospital admission. The chest radiograph showed patchy consolidation and diffuse interstitial opacities on whole lung fields. Five days later after conservative management that included an oxygen supply in the intensive care unit, his symptoms were improved and the hypoxemia was corrected. At the 8th day, the chest radiograph became normal.(Korean J Med 71:562-566, 2006)
이근상 ( Kun Sang Lee ),정혜철 ( Hye Cheol Jung ) 한국품질경영학회 2004 품질경영학회지 Vol.32 No.2
As environmental issues have been become critical concerns of business, many domestic small and medium enterprises(SME`s) are rapidly accepting environmental management systems(EMS) that confirm ISO 14001 guidelines. The purpose of this paper is to present the results of an empirical study carried out on a sample of certified SME`s with the aim of identifying obstacles encountered in adopting ISO 14001 standards and the impact of environmental systems on corporate performance after implementation of the ISO 14001 registration process. Data from this study show that the vast majority of respondents reported environmental improvements related to the implementation of an ISO 14001 EMS, especially in the area of employees` participation of the environmental management and responsibilities for reducing negative impacts, energy and resource conservation, materials reuse, and raising top management commitment. The greatest obstacles for implementing the ISO 14001 standard are lack of cooperation and a scarcity of resources such as personnel, money, and time. Results of this study serve as a reference point understanding the problems in the implementation of ISO 14001 in other small and medium firms.
결핵성 파괴폐에 의한 폐동맥 고혈압 환자에서 발견된 근위부 폐동맥 혈전증
이지은 ( Ji Eun Lee ),김정현 ( Jung Hyun Kim ),강민경 ( Min Kyoung Kang ),박현정 ( Hyun Jeong Park ),이지현 ( Ji Hyun Lee ),김은경 ( Eun Kyung Kim ),이영경 ( Young Kyung Lee ),정혜철 ( Hye Cheol Jeong ) 대한결핵 및 호흡기학회 2008 Tuberculosis and Respiratory Diseases Vol.64 No.1
Pulmonary arterial thrombosis develops during hypercoagulable states, intra-arterial tumorous conditions, and congenital heart disease accompanied by pulmonary hypertension. Thrombosis in the main pulmonary arterial stump after pneumonectomy can also occur. Herein, we report a very rare case of pulmonary arterial thrombosis in a patient with pulmonary hypertension and a lung destroyed by tuberculosis. He presented with aggravated dyspnea without fever or purulent sputum. His chest computerized tomography scan showed left main pulmonary arterial thrombosis as a convex shape, with the ipsilateral distal arteries and arterioles showing parenchymal destruction. After excluding pulmonary thromboembolism and hypercoagulable disorders, we diagnosed pulmonary arterial thrombosis and treated him with an anticoagulant. (Tuberc Respir Dis 2008;64:28-32)