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장원익 ( Won Ik Jang ) 한국보건경제정책학회 2007 보건경제와 정책연구 Vol.13 No.1
An improved understanding of role of informal caregiver and the costs of diseases are obtained by conducting a case study of the costs associated with end stage renal disease(ESRD). In the costs of ESRD, the costs incurred by both patients and their primary informal caregivers are calculated. One of the results in this study indicates the patient`s and caregiver`s perception of the quantity of caregiving varies. Using patients and their primary caregivers at a regional dialysis center in east-central Texas as a case study, calculated total ESRD costs range from $84,086 to $123,144/year/case. Of the total costs, approximately 4% can be attributed to informal caregiving. Consideration of informal caregiving costs is, therefore, an important component of the costs of disease. These calculations are conservative as the costs associated with lifestyle changes and health effects are noted, but no monetary value is placed on them.
혈액투석치료를 받는 말기신부전 환자에서 체내 수분분포와 임상상
장원익 ( Won Ik Jang ),배홍진 ( Hong Jin Bae ),함영록 ( Young Rok Ham ),장동석 ( Dong Suk Chang ),최대은 ( Dae Eun Choi ),나기량 ( Ki Ryang Na ),이강욱 ( Kang Wook Lee ),신영태 ( Young Tai Shin ) 대한신장학회 2011 Kidney Research and Clinical Practice Vol.30 No.3
Purpose: Maintenance of the normal hydration state is one of the major purposes of hemodialysis therapy in patients with end-stage renal disease. Overhydration is an important and independent predictor of mortality in patients with end-stage renal disease on regular hemodialysis. BCM (body composition monitor, FMC, Germany) reliably enables quantitative assessment of hydration status and body composition. The aims of this study were to investigate the relationship between hydration status and clinical features and the risk factors of overhydration. Methods: We measured hydration status and body composition of total 72 patients with end-stage renal disease on regular hemodialysis by BCM from June, 2009 to September, 2009. We also reviewed the clinical characteristics and laboratory findings and comorbidities retrospectively. Results: The hydration status measured by BCM was correlated well with interdialytic weight gain after 48 hours and 72 hours from last hemodialysis treatment (r=0.42 p<0.001, r=0.38 p<0.01, respectively). There was no statistically significant difference in comorbidities, age, sex, BMI, blood pressure, hypotensive episodes between the patients with overhydrated state (relative hydration status ≥20%) and control patients (relative hydration status <20%). In overhydrated patients, serum iron level was lower than control patients 48 hrs after last hemodialysis (p<0.05). Conclusion: This cross-sectional study showed that hydration status measured by BCM was correlated well with interdialytic weight gain although there was no significant clinical difference between overhydrated and control patients with end-stage renal disease on regular hemodialysis
Sub-micron패턴 형성을 위한 축대칭 이온광학계의 성능해석
이종현,장원익,유형준,Lee, Jong-Hyeon,Jang, Won-Ik,Yu, Hyeong-Jun 한국전자통신연구원 1989 전자통신 Vol.11 No.1
액체금속 이온원에서 추출된 이온빔을 웨이퍼 위에 접속하기 위한 이온광학계에 있어서 축대칭 판형 전극의 전위분포를 계산하는 해석적인 방법을 제시하였다. 이 방법은 이온궤적, 수차 및 이온빔 직경등의 광학 특성을 보다 빠르게 계산할 수 있는 computer code의 개발에 이용되었다. 계산된 광학특성은 Burghard의 결과와 잘 일치하였으며, 기존의 Orloff.lens,Kurihara lens의 aperture 직경을 변화시켜 색수차를 줄이면 이온빔의 직경이 20% 정도 감소되었다. 또한 두개의 렌즈로 이루어진 이온광학계에 대한 전산모사를 통하여 일반적으로 collimated mode가 crossovered mode에 비해 작은 빔직경을 가지며, 5KeV, 50keV의 빔에너지에서 각각 Orloff lens/Orloff-reversed lens, Kurihara lens/Orloff-reversed lens로 조합된 경우가 빔직경의 관점에서 유리함을 알 수 있었다.
신증후성 출혈열 후에 발생한 Henoch-Schonlein 자반증성 신염과 비골신경 마비
김의식 ( Eui Sik Kim ),장원익 ( Won Ik Jang ),정지윤 ( Ji Yoon Jung ),정사라 ( Sa Rah Chung ),최대은 ( Dae Eun Choi ),임범진 ( Bum Jin Im ),나기량 ( Ki Ryang Na ),이강욱 ( Kang Wook Lee ),서광선 ( Kwang Sun Suh ),신영태 ( Young Ta 대한신장학회 2009 Kidney Research and Clinical Practice Vol.28 No.6
In the course of hemorrhagic fever with renal syndrome (HFRS), mild neurological symptoms such as headache, vertigo and nausea are common. Peripheral neuropathy in HFRS is very rare. Henoch-Schonlein purpura (HSP) is an immunologically medicated systemic vasculitis of small blood vessels affecting the skin, gastrointestinal tract, joints and kidneys, predominantly. Neurological complications in HSP include headache, focal cerebral deficit, coma, convulsion, subarachnoid hemorrhage and chorea. Peripheral neuropathy is also very rare. However there was no case report about HSP and peroneal nerve palsy after HFRS. With a brief review of the literature, we report a case of HSP and peroneal nerve palsy following HFRS.
침술 및 근육 내 자극치료 (Intramuscular Stimulation)에 의한 콩팥주위 혈종
김설영 ( Seul Young Kim ),장원익 ( Won Ik Jang ),정사라 ( Sa Rah Chung ),최대은 ( Dae Eun Choi ),나기량 ( Ki Ryang Na ),이강욱 ( Kang Wook Lee ),신영태 ( Young Tai Shin ) 대한신장학회 2009 Kidney Research and Clinical Practice Vol.28 No.2
Acupuncture therapy has been widely performed by staffs of oriental medicine in Korea, and intramuscular stimulation (IMS) therapy has been introduced recently and used for controlling myofascial pain in the field of orthopedics, rehabilitation, and pain clinics. To penetrate human tissues, relatively long needles are used in both procedures and these these may have some risks to puncture blood vessels. However, there were few reports about sequelae or complications after such procedures in Korean literatures. Recently, we experienced two cases of perirenal hematoma in patients without blood coagulation abnormalities (one case induced by acupuncture in oriental medicine clinic, and the other case induced by IMS in orthopedic clinic and was also accompanied by perirenal abscess).