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천식발작 환자에서 말초혈액 내 호산구와 호중구 증가의 임상적 의의
이우진 ( Woo Jin Lee ),최인선 ( Inseon S. Choi ),정종원 ( Jong Won Jeong ),이세련 ( Se Ryeon Lee ) 대한천식알레르기학회 2008 천식 및 알레르기 Vol.28 No.3
Background: Neutrophilic airway inflammation has been reported in severe intractable asthma. Therefore, direct assessment of airway inflammation may be useful. However, but it is not easy especially in patients with acute asthma. Objective: To investigate whether the clinical characteristics of patients with acute asthma differ according to the cellular profiles of their blood samples which are easily obtainable. Method: The medical records of 410 adult patients with acute asthma, who were hospitalized between 2002 and 2007, were reviewed. Blood eosinophilia and neutrophilia were defined as the cell counts of ≥450/μL and ≥7,500/μL, respectively. Result: The patients with eosinophilia were relatively young, and they had high serum levels of total IgE and posttreatment lung function. The patients with neutrophilia showed a significantly lower posttreatment lung function and a higher prevalence of emphysema than those with eosinophilia. The levels of PaCO2 were significantly related to the eosinophil counts, while the levels of PaO2 and C-reactive protein (CRP) were related to the neutrophil counts(all P<0.01). Conclusion: Eosinophilic or neutrophilic response in peripheral blood which occur in acute asthma patients may depend on upon the attack severity and clinical characteristics of subjects such as allergy or irreversible airflow obstruction. (Korean J Asthma Allergy Clin Immunol 2008;28:184-191)
외래에서 철 결핍 빈혈로 진단된 남자 환자의 악성 종양 유병률과 연관인자
이병현 ( Byung Hyun Lee ),이재중 ( Jae Joong Lee ),심재겸 ( Jae Kyeom Sim ),김정선 ( Jung Sun Kim ),김대식 ( Dae Sik Kim ),박세종 ( Seh Jong Park ),이세련 ( Se Ryeon Lee ),박용 ( Yong Park ),최철원 ( Chul Won Choi ),김병수 ( Byun 대한내과학회 2014 대한내과학회지 Vol.87 No.1
Background/Aims: Despite several reports on clinical aspects of anemia and malignancy, little is known of male patients with iron-deficiency anemia (IDA) and malignancy in Korea. We examined the cause of anemia, prevalence of and factors associated with malignancy, and treatment response to iron therapy in male IDA patients. Methods: The results of 202 males with IDA seen from March 2008 to June 2013 were analyzed retrospectively. The patients were divided into two groups based on the causes of anemia: the cancer group included patients with anemia caused by malignancy and the non-cancer group included patients with anemia due to other causes. We compared the clinical characteristics and response to iron therapy between the two groups. Results: The most common cause of IDA was bleeding (42.6%). The prevalence of malignancy was 11.9%, with colorectal cancer (58.3%) being the most common. Among the cancer patients (n = 24), 22 patients (91.7%) were age 50 or older. Independent factors associated with malignancy were old age (OR, 1.05; p = 0.026) and a positive stool occult blood test (OR, 7.48; p = 0.001). The treatment response to iron therapy based on a normalized hemoglobin level was lower in the cancer group (OR, 0.49; p = 0.31), but the difference did not reach statistical significance. The treatment response based on the mean hemoglobin level was significantly lower in the cancer group (12.6 ± 2.2 vs. 13.8 ± 1.6 g/dL, p = 0.016). Conclusions: Old age and a positive stool occult blood test were independent risk factors for malignancy in male IDA patients. We recommend screening for malignancy in patients older than 50 years or with a positive stool occult blood test. (Korean J Med 2014;87:53-60)
비탈면 통합관리시스템: 재난 대응 및 유지관리 체계화 소개
박규순 ( Park Gyu-soon ),김일환 ( Kim Il-hwan ),이종훈 ( Lee Jong-hoon ),홍성수 ( Hong Seong-soo ),이세련 ( Lee Se-ryeon ) 한국구조물진단유지관리공학회 2023 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.27 No.1
국토안전관리원은 국도 비탈면 현황도 보고서 검토와 기초조사 DB관리 업무를 수행한다. 최초 과업 수행 후 현재까지 정의된 국도 비탈면은 약 3만개소로 방대한 양의 비탈면 DB가 구축되어 있고 국도 신설 시 비탈면 현황도 및 기초조사 보고서의 추가로 이 숫자는 더욱 증가할 예정이다. 그러나 실무에서 비탈면 DB를 활용하는 것은 시 · 공간적인 제약이 따랐는데, 비탈면 통합관리시스템을 통해 이를 해소할 수 있었다.
모바일 아동도서 관리 애플리케이션 “아이북쉐어”의 활용성과 효과
김진주(Kim Jin-Joo),강지수(Kang Ji-Soo),정승연(Jung Seung-Yeon),송세련(Song Se-Ryeon),이유미(Lee Yu-Mi) 한국정보기술학회 2021 Proceedings of KIIT Conference Vol.2021 No.6
자녀 교육에 관심이 많은 부모를 위해 아동도서 정보 및 학습 방법 관리 기능을 제공하고자 모바일 애플리케이션 "아이북쉐어"를 개발하게 되었다. 이 논문에서는 "아이북쉐어"의 주요 기능 및 ISBN을 활용한 도서 인식 과정과 "아이북쉐어"만의 도서 분류 기준에 대하여 자세히 설명한다. 이를 통해 “아이북쉐어”의 이용자들은 편리하게 책장을 공유하고 정보를 얻음으로써 자녀 미래 교육에 전반적인 계획을 세울 수 있고, 자녀의 독서방법을 더욱 올바르게 지도하고 관리할 수 있다. For parents who are interested in their children"s education, the mobile application "iBook Share" was developed to provide information on children"s books and management of learning methods. In this paper, the main functions of "iBook Share", book recognition process using ISBN, and the book classification criteria of "iBook Share" are explained in detail. Through this, users of “iBook Share” can conveniently share bookshelves and obtain information to make overall plans for their children"s future education, and to teach and manage their children"s reading methods more correctly.
심현정 ( Hyun Jeong Shim ),임정환 ( Jung Hwan Lim ),이석 ( Seck Lee ),김대현 ( Dae Hyun Kim ),박강진 ( Kang Jin Park ),이세련 ( Se Ryeon Lee ),정종필 ( Jong Pil Jeong ),손준광 ( Jun Gwang Son ),김수옥 ( Soo Ok Kim ),오인재 ( In J 대한결핵 및 호흡기학회 2006 Tuberculosis and Respiratory Diseases Vol.61 No.5
Leiomyoma of the bronchus is a very rare benign tumor of the lung. Most endobronchial leiomyomas occur as secondary foci of primary uterine leiomyoma. We herein report a case with endobronchial tumor that had a different pathology from a primary resected uterine leiomyoma and was therefor considered a primary endobronchial leiomyoma. A 51-year-old woman with a history of uterine myoma presented with productive cough and fever. Bronchoscopy revealed a lightly yellow colored mass lesion that totally obstructed the orifice of the left lower lobe of the lung. The diagnosis of leiomyoma was made by histological examination of the obtained specimen. We considered the possibility of a benign metastasizing pulmonary leiomyoma. For treatment and differential diagnosis, a left lower lobe lobectomy of the lung and total hysterectomy with bilateral salphingooopherectomy were performed. The differences between lung and uterine lesions were confirmed by morphologic finding and immunohistochemical staining. The pathological diagnosis was primary endobronchial leiomyoma combined with uterine myoma. (Tuberc Respir Dis 2006; 61: 490-495)
비호지킨림프종에서 골수흡인 검사 결과에 따른 전체 생존율의 분석
최정윤 ( Jung Yoon Choi ),강가원 ( Ka-won Kang ),이병현 ( Byung-hyun Lee ),유은상 ( Eun Sang Yu ),김대식 ( Dae Sik Kim ),이세련 ( Se Ryeon Lee ),성화정 ( Hwa Jung Sung ),김석진 ( Seok Jin Kim ),최철원 ( Chul Won Choi ),김병수 ( By 대한내과학회 2019 대한내과학회지 Vol.94 No.2
Background/Aims: The staging work-up for patients with non-Hodgkin’s lymphoma includes bone marrow aspiration and biopsy. Consistent results of both procedures can clarify the diagnosis. However, no clear guidelines have been established regarding positive results for bone marrow aspiration alone. The aim of this study was, therefore, to analyze the overall survival (OS) for the clinical diagnoses of these patients using morphological methods. Methods: We performed a retrospective analysis of patients who were consecutively enrolled in the Korea University Lymphoma Registry from 1991 to 2016. OS was compared according to the bone marrow group: without bone marrow involvement (BMA-/BMBx-), with positive results for aspiration and negative results for biopsy (BMA+/BMBx-), and with bone marrow involvement in biopsy (BMBx+). OS was assessed using the Kaplan-Meier method and multivariate analysis. Results: Of 1,735 patients, 1,326 were analyzed and 409 were excluded. In the Kaplan-Meier survival analysis, OS was significantly worse for patients in the BMBx+ group compared with those in the BMA-/BMBx- group (p < 0.001). However, there was no significant difference in OS between patients in the BMA+/BMBx- group and those in other groups (vs. BMA-/BMBx-, p = 0.163; BMBx+, p = 0.292). In multivariate analysis, by adjusting survival-related variables, the BMA+/BMBx- group showed marginal significance compared to the BMA-/BMBx- group (p = 0.081), and showed significance in the subgroup of indolent non-Hodgkin’s lymphoma patients (p = 0.003). Conclusions: This study suggested that even if there are positive results in bone marrow aspiration alone in patients with non-Hodgkin lymphoma, attention to patient characteristics, involving significance as a poor prognosis for OS, is required. (Korean J Med 2019;94:182-190)