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황현철 ( Hyun Chul Hwang ),홍훈표 ( Hoon Pyo Hong ),김동필 ( Dong Pil Kim ),김명천 ( Myung Chun Kim ),고영관 ( Young Gwan Ko ) 대한외상학회 2003 大韓外傷學會誌 Vol.16 No.2
Purpose: This study was performed to review our experience with geriatric pelvic fracture patients in our emergency center. Methods: Pelvic bone fracture patients who visited the emergency center of Kyung Hee University Hospital and Dongsuwon General Hospital from March 2001 to July 2003 were analyzed using a retrospective medical records review. Variables included in the data analysis were demographics, injury pattern, transfusion needs, and outcome of pelvic fractures in older versus younger patients. Results: We cared for 93 patients with pelvic fractures during the study period. The mean age was 38 years, 56% were men, and the mean Injury Severity Score (ISS) was 19. Overall mortality was 13%. Seventy-five percent were younger than 55 years, and 25% were older than 55 years. Severe pelvic fractures were more common in older patients. The initial systolic blood pressure was lower and the heart rate higher in older patients, although the ISS was not different between the two age groups. Older patients were 2.2 times as likely to undergo transfusion and those undergoing transfusion, required more blood. Lateral compression (LC) fractures occurred 2.7 times more frequently in older patients than anteroposterior (AP) compression fractures. Conclusion: In older patients, pelvic fractures are more likely to produce severe complications and sequelae. Fracture patterns differ in older patients, with LC fractures occurring more frequently and commonly causing significant blood loss. The outcome for older patients with pelvic fractures is significantly worse than it is for younger patients, particularly for higher injury severity. Recognition of these differences should help clinicians to identify patients at high risk for bleeding and death early and to refine diagnostic and resuscitation strategies.
과산화수소 증기 시스템을 이용한 미생물 제독에 관한 연구
김윤기,김민철,윤성녀,황현철,류삼곤,Kim, Yun Ki,Kim, Min Cheol,Yoon, Sung Nyo,Hwang, Hyun Chul,Ryu, Sam Gon 한국환경보건학회 2013 한국환경보건학회지 Vol.39 No.3
Objectives: Effectiveness and conditions of vapor-phase hydrogen peroxide (VPHP) system on decontamination of Geobacillus stearothermophilus(GS) spores, Escherichia coli (E.coli) and Enterobacteria phage felix01 (felix01) were determined. Methods: The VPHP system was designed to vaporize 35% (w/w) solution of hydrogen peroxide, continuously to inject and withdraw VPHP. The system and VHP 1000ED (Steris) were operated such that dehumidification and conditioning were initiated without samples in the chamber. Then the samples were loaded into and removed. Coupons (glass, anodizing, silicon, viton) with GS spores ($1{\times}10^6$ colony forming unit/mL [CFU/mL]), E.coli ($1{\times}10^7$ CFU/mL) and felix01 ($1{\times}10^7$ plaque forming unit/mL[PFU/mL]), and Biological Indicator (BI) with GS spores ($1{\times}10^6$ CFU/mL) on stainless steel coupons were used. The tested samples were sonicated and vortexed, and then were plated for enumeration, followed by incubation at $55^{\circ}C$, 24 hr for GS spores, and at $37^{\circ}C$, 24 hr for E.coli and felix01. BI analysis in broth culture was only qualitative. Results: The efficacy of the VPHP system on decontamination was almost equivalent to that of VHP 1000ED. The conditions for complete decontamination with the VPHP system was as follows: concentration; 700~450 ppm, relative humidity; approximately 55%, and temperature; $34{\sim}32^{\circ}C$. When comparing the decontamination efficiency among different kinds of coupons, glass was the most effective, however, all kinds of coupons were decontaminated completely after 60 min exposure in both systems. Conclusion: The VPHP system can be recommended as an alternative system for traditional system using ethylene oxide, formaldehyde or chlorine dioxide.
한국군에서의 한타박스<sup>®</sup> (HFRS국내백신)의 효용성에 대한 연구
손민정 ( Min-jeong Son ),황현철 ( Hyun-chul Whang ),양병윤 ( Byeon-yun Yang ),최강원 ( Kang-won Choe ),박영준 ( Young-joon Park ),황세민 ( Se-min Hwang ),채동완 ( Dong-wan Chae ) 국군의무사령부 2011 대한군진의학학술지 Vol.42 No.1
Introduction: Hemorrhagic fever with renal syndrome (HFRS), although its incidence is decreasing, reveals severe renal clinical course and high mortality. Military croups have many outdoor activities, so soldiers cannot avoid to exposure of Hantan virus in epidemic area in Korea. Therefore, soldiers in epidemic area were scheculed to vaccinate HantavaxⓇ which is intoxicated vaccine. this study aims that HantavaxⓇ can influence with the clinical course of HFRS. Methods: Twenty nine male patients ,who were diagnosed HFRS in the Armed Forces Capital Hospital, were retrospectively enrolled from March 2009 to July 2010. Patients have positive results in Hantan virus antibody using with rapid chromatography test and they have no history of vaccination within three month recently. Nephrology specialist diagnosed the HFRS in patient and enrolled them in study group. All patients were confirmed the vaccination history which is based on public record of his croup, not his memory's. Researchers could check patient's precise vaccination history, the day and the times. We classified patients by non-vaccination patients (group 1) and vaccination patient (group 2) and investigated clinical course of both groups. Results: Eleven patients (37.9%) had been vaccinated previously and eighteen patient had not had vaccination. None of study patients was died. six patients of group 1 must have been dialysis treatment during acute status and none of group 2 were not dialysis treatment. Eleven patients of group 1 experienced oliguria, but only one patient of group 2 have oliguric phase. These clinical course shows stastically different from group 1 and group 2(p=0.032, p=0.011). These results are announced that vaccination might have protective effect against the HFRS. Admission day, titer of antibody, hematologic and chemical test were not different among two groups. Conclusion: Vaccination group of HantavaxⓇ in patients had better clinical course than non-vaccination group. Additional study should be needed for evaluating of renal protective effect of HantavaxⓇ.
과산화수소 증기를 이용한 다양한 쿠폰 표면의 Geobacillus Stearothermophilus 아포 제독조건
김상훈,정경화,김세계,채영규,김윤기,황현철,김민철,박명규,류삼곤,Kim, Sang Hoon,Jung, Kyoung Hwa,Kim, Se Kye,Chai, Young Gyu,Kim, Yun Ki,Hwang, Hyun Chul,Kim, Min Cheol,Park, Myung Kyu,Ryu, Sam Gon 한국군사과학기술학회 2013 한국군사과학기술학회지 Vol.16 No.4
Biological decontamination means the removal of microorganisms from the inanimate object such as building or equipment. In this study, hydrogen peroxide vapor efficacy test using VHP 1000ED system(Steris LifeSciences) were conducted for G. stearothermophilus spore with agent materials(aluminum, stainless steel, poly-carbonate, viton, silicone, kapton and glass). Total recovered spores exposed to hydrogen peroxide vapor(1.0 g/min) during 7, 15, 30, 60 min were calculated. As a result, all agent materials were totally decontaminated within 60 min at 1.0 g/min concentration with 35% hydrogen peroxide vapor. Finally, we could confirmed that hydrogen peroxide vapor possess sporicidal capacity of G. stearothermophilus and found the optimum decontamination conditions with VHP1000ED system.