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의도성 여부를 중심으로 한 일산화탄소 중독환자의 임상적 특성
조민기 ( Min Ki Cho ),김양원 ( Yang Weon Kim ),이경룡 ( Kyeong Ryong Lee ),이경우 ( Kyung Woo Lee ),이장영 ( Jang Young Lee ),조규종 ( Gyu Chong Cho ),조준호 ( Junho Cho ),김현종 ( Hyun Jong Kim ),김승환 ( Seong Hwan Kim ),정성필 대한임상독성학회 2012 대한임상독성학회지 Vol.10 No.2
Purpose: The purpose of this study was to identify the changes in the characteristics of patients with carbon monoxide (CO) poisoning, as well as the distinctive differences in intentionally exposed patients. Methods: The medical records of CO poisoning patients, who visited nine emergency departments between January 2010 and December 2011, were reviewed retrospectively. The clinical information including age, gender, hospitalization, type of discharge, cause and location of exposure, site of onset, concentration of initial blood carboxyhemoglobin (COHb), methods of treatment and presence of neurological complications was examined. The subjects were divided into an intentional and non-intentional group and the differences between them was compared. Results: A total 209 subjects were recruited. The median age was 38 years (29~49.5 years). They frequently complained of nausea and vomiting, and the most common exposures occurred in winter, normally in the home. The cause of exposure was usually fire, followed by incomplete combustion of fuels. The median initial blood COHb was 13.15%. The proportion of intentionally exposed patients was 21%. They were significantly younger, more frequently discharged against medical advice, and showed a higher initial blood COHb level (22.85%) than the non-intentional group. Conclusion: This study suggests that those with intentional CO poisoning are normally discharged against medical advice even when they have a higher initial COHb level. An adequate explanation of the delayed neurologic sequelae and short term follow-up observation is recommended for those patients with intentional exposure.
장은식(Eun-sik Jang),조규종(Kyu-jong Cho),이명규(Myung-gyu Lee),Chen-si 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
Refrigerator Door is the non-symmetric structure consist of Stainless steel plate, Urethane Foam, ABS and Plastic injection product. When the manufacturing process of refrigerator door, partial constriction caused deformation of Stainless steel plate in the process of polymerization and cooling after injection of Urethane between Stainless steel plate and ABS. This is the displacement of cooling & contraction process from end of Urethane polymerization (12 ℃) to ambient temperature (20℃), and it can be recognizable displacement about 0.2 - 0.3㎜. So, We studied that grasp the main factor of Refrigerator Door displacement and show the scheme of thermal strain minimization.
갑상선 종양을 제외한 경부중앙 종물에 대한 임상적 고찰
김광문(Kwang Moon Kim),박한규(Han Q Park),조규종(Gyu Jong Cho),박기현(Kee Hyun Park) 대한두경부종양학회 1990 대한두경부 종양학회지 Vol.6 No.2
Midline neck masses have numerous origin and it is important to diagnose correctly for management. A clinical analysis of 29 cases of midline neck masses confirmed by histopathological examination was done retrospectively during the last 5 years. The results were followings; 1) Of 29 cases, thyroglossal duct cyst was most frequent(17 cases, 58.6%) and non-specific lymphadenopathy was the next(4 cases, 13.8%). 2) Midline neck masses were most frequent on the suprahyoid area(12 cases, 41.4%) and hyoid area was the next(7 cases, 24.1%). 3) Two thyroglossal duct carcinoma was included in 17 thyroglossal duct cyst. 4) Seventy percent of thyroglossal duct cyst was present on hyoid and infrahyoid area.