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증례 식도 상부의 이소성 위점막에서 발생한 원발성 선암
이중민 ( Jung Min Lee ),박승우 ( Seung Woo Park ),배상운 ( Sang Woon Bae ),김재학 ( Jae Hak Kim ),감창우 ( Chang Woo Gham ),이세준 ( Se Joon Lee ),송시영 ( Si Young Song ),정재복 ( Jae Bock Chung ),강진경 ( Jin Kyung Kang ) 대한소화기학회 2003 대한소화기학회지 Vol.41 No.3
The incidence of esophageal adenocarcinoma is steadily increasing. Most of them, however, are attributable to adenocarcinoma arising from the lower esophagus, which is quite contrary to rare incidence of upper esophageal adenocarcinoma. The origins of esophageal adenocarcinoma are postulated to be Barrett`s esophagus, ectopic gastric mucosa, and esophageal gland. Barrett`s esophagus is widely accepted as being associated with lower esophageal adenocarcinoma. On the other hand, ectopic gastric mucosa, which is believed to remain due to congenital defect during the developmental stage and which is found as many as 10% of routine esophagogastroscopy, has been rarely proven to be the origin of upper esophageal adenocarcinoma. In Korea, to our knowledge, no case has been reported yet, and we herein report a case of upper esophageal adenocarcinoma originated from ectopic gastric mucosa with a brief review of previous reports. (Korean J Gastroenterol 2003;41:224-228)
이차성 비기능항진증에서 부분적 비장동맥색전술의 장기 치료 효과
이중민 ( Jung Min Lee ),전재윤 ( Chae Yoon Chon ),한재용 ( Jae Yong Han ),윤기태 ( Ki Tae Yoon ),문창모 ( Chang Mo Moon ),안상훈 ( Sang Hoon Ahn ),한광협 ( Kwang Hyub Han ),이종태 ( Jong Tae Lee ),문영명 ( Young Myoung Moon ) 대한내과학회 2007 대한내과학회지 Vol.72 No.5
Background: Liver cirrhosis causes secondary hypersplenism and thrombocytopenia is clinically troublesome. Splenectomy (SPL) was thought to be the curative management for correcting thrombocytopenia. However, decompensated liver function prevents any surgical approach due to high morbidity and mortality. Hence, partial splenic embolization (PSE) has been introduced, which is a less invasive procedure. The purpose of this study was to assess the long-term therapeutic effects of PSE and to compare them with those of SPL. Methods: This study was performed retrospectively in patients who underwent PSE or SPL from Jan. 1999 to Dec. 2003. The patients either had symptoms of bleeding or they needed to correct their thrombocytopenia for further treatment of associated diseases. The therapeutic effects were evaluated, and the complications were assessed. Results: Forty and 35 patients were enrolled in the PSE and SPL groups, respectively. WBC, platelet and hemoglobin counts were all significantly increased at the 2 year follow-up in both groups. Child-Pugh score significantly decreased in the PSE group from 6.5 before treatment to 5.5 after treatment (p=0.004). Minor complications were easily controlled with supportive care, and major complications very rarely occurred in both groups. Conclusions: PSE and SPL both proved to be effective measures with few serious complications for treating pancytopenia in patients with liver cirrhosis. Considering the improved liver function (the prothrombin time) and the Child-Pugh score after PSE, it may be more reasonable to initially recommend PSE for the patients with liver cirrhosis and secondary hypersplenism. (Korean J Med 72:470-479, 2007)
이중민 ( Jung Min Lee ),김도영 ( Do Young Kim ) 대한간암학회 2009 대한간암학회지 Vol.9 No.-
In Korea, hepatocellular carcinoma (HCC) is a fourth leading malignancy with poor prognosis of 5 year survival reaching just 18.9%. The peak incidence is 6th decade and the incidence drops with decreasing age. However, young patients with HCC are not uncommonly encountered in clinical practice, and notably, even though managements with all available modalities are undertaken in these patients, the prognosis does not seem to be better. As such, many physicians feel that the behavior of HCC in young patients takes a more aggressive course than that in old patients. From this perspective, we performed a systemic review of previous literatures focusing on the question whether or not HCC in young patients is more aggressive; it was found that young patients with HCC had presentation of more advanced stage, more preserved liver function, but poor or equivocal survival rate. In the multivariate analysis, however, the poor outcome resulted not from young age, but from advanced stage, which was supported by similar or better outcome when the prognosis was compared with the same stage between young and old patients. Consequently, it could be inferred that an earlier detection of the tumor through earlier starting point of surveillance might improve the prognosis of young patients with HCC. However, a matter of cost-effectiveness should also be considered, which necessitates a further analysis on this issue.
이중민 ( Jung Min Lee ),박준용 ( Jun Yong Park ),김도영 ( Do Young Kim ),김경식 ( Kyung Sik Kim ),박영년 ( Young Nyun Park ),김명진 ( Myeong Jin Kim ),전재윤 ( Chae Yoon Chon ),한광협 ( Kwang Hyub Han ) 대한간암연구회 2009 대한간암학회지 Vol.9 No.-
Hepatocellular carcinoma (HCC) is one of the cancers with poor prognosis as HCC develops on base of cirrhosis in majority cases, which requires multidisciplinary approach. If feasible, however, surgical resection is the choice of treatment, and many previous studies and guidelines offered appropriate indications for surgical resection; firstly, preservation of liver function should be confirmed with traditional Child-Pugh classification or more recently with Indocyanine Green retention test or absence of portal hypertension. Secondly, several variables about the size, number, and vascular invasion of tumor should be taken into consideration. It is suggested that to lessen the risk of recurrence gross vascular invasion be absent and the number of tumor be single. Regarding the size of tumor, although risk of dissemination increases with size, some tumors may grow as a single mass and thus the size of tumor is not a clear-cut limiting factor. Based on above suggestions, we herein offer our experience of a patient with initial hopeful expectation of good outcome with surgical resection, but who eventually turned out to result in disseminated tumor recurrence. Further study, maybe regarding a combination of adjuvant or neoadjuvant transarterial chemoembolization/chemotherapy or radiotherapy, is necessary on how to manage such patient.
이중민(Jung-Min Lee),임익태(Ik-Tae Im) 대한기계학회 2016 대한기계학회 춘추학술대회 Vol.2016 No.12
In this study, separation efficiency of a hydro cyclone is investigated using numerical simulation. Flow field of water including solid particles was solved using a two-fluid model. Separation efficiency of a hydrocyclone at various solid volume fraction and inlet velocity was found by numerical simulations. Results show that the efficiency decreased with increasing of inlet velocity and sand volume fraction.
차우정 ( Woo-jeong Cha ),이중민 ( Jung-min Lee ) 한국미용예술경영학회 2011 미용예술경영연구 Vol.5 No.3
By recognizing the hair salon employees' satisfaction on working environment according to the working types, this study purposed to suggest some improvements for them to work better workplace environment. For this purpose, the survey was conducted targeting some employees in hair salons located in Seoul and kyonggi province, and the 589 questionnaire copies were analyzed using the SPSS 16.0 statistical program. The analysis results are as follows. First, the demographic intypeation about the respondents showed that most respondents were single women in their 20s, and their income range was from 1 million to 2million won. Second, the working types of respondents showed that most respondents were staff working in franchised hair ships for about 10~12 hours every day with 4 duty-off days per month. Third, the respondents' satisfaction level on the working environment was somewhat lower than the moderate level. Fourth, their satisfaction on working environment according to demographic features showd there were some differences among groups in terms of age, marriage, monthly income, smoke amount, drinking frequency. Fifth, the respondents' satisfaction on the working environment showed there were some differences among groups in terms of hair salon type, the staff number, the salon location, their working period in current workplace, the hairdresser carrier, the position, the working type, the working hours, the average number of monthly holidays, and the wage type. As the research result, this study suggests following improvements for the better working environment. First, each hair salon needs some ways to shorten the working hours and to increase the number of duty-off days. Second, each hair salon should set some chances to promote the friendship among staff. Third, each hair salon should take more efforts to set the reservation culture in order to secure staffs suitable work amount and rest. Fourth, each hair salon should induce to create high additional values through more efficient customer management. Fifth, each hair salon needs to actively utilize the online media. Based on these improvements, this study hopes that the employees of hair salons work in better working environment, produce more satisfactory performance, and that the beauty industry will be more advanced.