간문부 담관암 환자에서 경피경관 양측성 금속 배액관의 효과

김금래,김주형,박원규,장재천,조재호,김태년,김준화,장병익 영남대학교 의과대학 2005 Yeungnam University Journal of Medicine Vol.22 No.2

Background: The purpose of this study was to determine the effectiveness of percutaneously place self-expanding metallic stent for the relief of biliary obstruction in patients with hilar cholangiocarcinoma. Materials and Methods: From November 2001 to December 2004, 48 patients with hilar cholangiocarcinoma were prospectively studied. After percutaneous placement of bilateral self-expanding, uncovered metallic stents, follow-up evaluation was carried out until July 2005. Results: There were 4 cased of Bismuth type Ⅱ,21 cases of Bismuth typeⅢa 8 cases of Bismuth type Ⅲb and 15 cases of Bismuth type Ⅳ. Stent placement was technically successful in all patients All patients had satisfactory biliary drainage, resulting in one week drainage rate of 72.8% and final drainage of 91.9% There were 12 cases (21.3%) of abdominal pain requiring analgesics and 1 case (7.1%) of cholangitis; both were successfully managed with conservative treatments. Late complications occurred in four patient (8.3%), including two patients with cholangitis, one patient with liver abscess, and one patient with biloma; all were appropriately managed by percutaneous drainage. The average length and median durations of stent patency and median survival time were 303 days (range, 60~815) and 338 days (range, 60 ~1175), respectively. Conclusion: Placement of a percutaneous metallic stent is an effective and safe method of palliation of patients with hilar cholangiocarcinoma.

Myelodysplastic Syndrome에서 Acute Myelogenous Leukemia로 이행한 1례

오금탁,김원식,박상호,홍순표,조건국 조선의대 1985 The Medical Journal of Chosun University Vol.10 No.1

수유 초기 모유 중 철, 구리, 아연의 함량과 영아의 섭취량 추정

김을상,조금호 동아시아식생활학회 2004 동아시아식생활학회지 Vol.14 No.1

The objectives of the present study were to measure the content of iron, copper and zinc in human milk and to estimate the intake of iron, copper and zinc of breast-fed infants during the early period of lactation. Twenty-five lactating women who delivered in a hospital in Seoul volunteered for the study. Milk samples were collected at day 2, 3, 4, 5, 6, 7, 15 and 30 postpartum. The contents of iron, copper and zinc were determined using the atomic absorption spectrophotometer after wet digestion. The intakes of iron, copper and zinc of infants were estimated by multiplization with the infant milk intake reported in our laboratory. The content of iron was 0.58 ㎍/g in colostrum, 0.48 ㎍/g in transitional milk and 0.39 ㎍/g in mature milk while the estimated iron intake of infants was 271, 255 and 259 ㎍/g day, respectively. The content of copper in the milk was 0.45 ㎍/g in colostrum, 0.43 ㎍/g in transitional milk and 0.33 ㎍/g in mature milk while the estimated copper intake of infants was 210, 229 and 220 ㎍/day, respectively. The content of zinc in the milk was 5.24 ㎍/g in colostrum, 3.70 ㎍/g in transitional milk, 2.93 ㎍/g in mature milk while the estimated zinc intake of infants was 2452, 1968, and 1949 ㎍/day, respectively. These results suggest that copper and zinc intake of infants are met to RDA but iron is not.

교통사고에 의해 발생한 뇌내 좌상 1례

박혜연,전소분,김선아,정금선,조종기,송근호,이영원 충남대학교 수의과대학 동물의과학연구소 2004 動物醫科學硏究誌 Vol.12 No.-

A two years old intact female Minature Schnauzer was referred to the Veterinary Medical Teaching Hospital of Chungnam National University with an intermittent seizure by traffic accident. No specific finding was found by radiography and computer tomography (CT). Hematologic and blood chemical examination revealed that PCV (62.5%), BUN (72.6 mg/dl), CK (1769 U/l), ALT (169 U/l) and ALP (353 U/l) were increased. This dog was recovered by medical treatment.

화목피 추출물이 Streptozotocin 으로 유발시킨 흰쥐의 당뇨와 Free Radical 에 미치는 효과

임병우,서태원,신흥묵,박동기,김선여,조금호,김호철 대한본초학회 2000 大韓本草學會誌 Vol.15 No.2

Type I diabetes is caused by destruction of the pancreatic beta cells responsible for insulin-secretion. It can be induced by the drugs alloxan or streptozotocin (STZ). Both an increase in reaction oxygen free radical species and a decrease in the antioxidant defense mechanism lead to the increase in oxidative stress in diabetes mellitus. Oxygen radicals scavengers are effective in preventing diagetes in animal models. Experiments were conducted by two system. The Sprague-Dawley rats were treated with STZ intravenous injection after oral administrated Betula's extract and quercetin for a week, and were administrated them for a week. In vitro, Betula's extracts and quercetin showed a tendency towards inhibition of free radical oxidation in all. In vivo, Betula's extracts group exhibited suppression morphologic change in pancreatic islet compare quercetin group on light microscopy. The Betula's extract significantly inhibited formation of MDA compared to the STZ-induced diabetic group in pancreas.They also significantly inhibited formation of Phosphatidylcholine hydroperoxide(PCOOH) compared to the STZ-induced diabetic group in pancreas and plasma, which considered defense against destruction in beta cells. The protection by Betula's extracts may be due to scavenging of deleterious and highly reactive free radical which is generated by STZ. In streptozotocin-induced diabetic rats, the effect of Betula's extract are greater than that of quercetin. Based on this result, we concluded that Betula's extract has the ability to effectively suppress in vitro and in vivo oxidation, thereby providing additional evidence for their potential beneficial type I diabetes.

저염식단의 나트륨과 칼륨 함량의 계산치와 정량치 비교

조금호(Kum-Ho Cho),박미아(Mee-Ah Park),김을상(Eul-Sang Kim) 한국식품영양과학회 1996 한국식품영양과학회지 Vol.25 No.3

“단백질, 나트륨, 칼륨 조절을 위한 식품교환표”에 따라 고혈압 환자를 위한 저염식단을 작성하여 나트륨, 칼륨의 정량치와 계산치를 조사한 결과는 다음과 같다. 1. 3일간의 저염식에서 하루에 섭취하는 음식의 중량은 2,241.2±68.4g이고, 음식을 통하여 섭취하는 수분의 양은 대사수 297.7±91.1g을 포함하여 전체 2,082.7±144.3g이었다. 2. 음식별 조리 전후의 중량의 변화는 뒤김류가 32.3±18.0%로 가장 크게 감소하였으며, 생채류가 2.5±3.3%로 중량의 변화가 가장 적었다. 3. 나트륨의 계산치와 정량치는 각각 1일 평균 656.4±273.2㎎, 675.7±195.3㎎으로 계산치에 대한 정량치의 비율은 97.1%를 나타내었으며, 칼륨의 평균은 각각 1일 평균 2,198.3±37.3㎎과 2,142.3±162.4㎎으로 계산치에 대한 정량치의 비율은 102.6%이었다. 4. 정량치에 대해 계산치가 가장 높게 나타난 음식은 나트륨과 칼륨 모두에서 오징어 튀김이었으며, 정량치에 비해 계산치가 가장 낮은 음식은 나트륨에서는 사과숙, 칼륨에서는 저염물김치였으나 평균 나트륨과 칼륨의 정량치와 계산치 사이에는 유의적인 차이가 없는 것으로 나타났다(p<0.05). 5. 나트륨의 정량치가 높은 음식은 부식과 주식이었으며, 칼륨은 부식과 간식에서 그 정량치가 높은 것으로 나타났다. This study was undertaken to evaluate estimated and analyzed contents of sodium and potassium in the salt-restricted diet using "Food exchange sheet for control of protein, sodium and potassium" for renal disease patients. Average food intake per day in the salt-restricted diet was 2,241.2±68.4g, and water content of meals per day was 2,082.7±144.3g including 297.7±91.1g of metabolic water from protein, fat and carbohydrate. Fried food showed higher weight change than that of the other kinds of food during cooking. Estimated and analyzed content of sodium were 656.4±273.2㎎, 675.7±195.3㎎, respectively ; those of potassium were 2,198.3±37.3㎎, 2,142.3±162.4㎎, respectively. Fried squid showed the lowest content of analyzed sodium and potassium compared with the estimated contents. The highest content of sodium was honeyed juice with apple, whereas the highest content of potassium was Mulkimchi. There was also no significant differences between analyzed and estimated content of sodium, as in case of potassium(p<0.05). Side dish and main dish made great contribution to sodium contents and the side dish and dessert were major source for potassium.

수유기간별 영아의 모유섭취량 및 Na, K의 섭취량

조금호(Cho Kum-Ho),문진(Moon Jean),금혜경(Keum Hae-Kyoung),김을상(Kim Eul-Sang) 韓國營養學會 1995 Journal of Nutrition and Health Vol.28 No.7

비례-공진 모델과 데드비트 제어기를 이용한 능동전력필터의 개선된 고조파 보상 기법

금호중(Ho-Jung Kum),김범준(Bum-Jun Kim),조진호(Jin-Ho Cho),박종민(Jong-Min Park),원충연(Chung-Yuen Won) 한국조명·전기설비학회 2018 조명·전기설비학회논문지 Vol.32 No.10

In grid-connected system, harmonics due to nonlinear loads such as power converters and motors are injected into the grid current, causing distortion, lowering the power factor and directly affecting power quality problems. To solve the power quality problems, many studies about Active Power Filter(APF) has been introduced. So in this paper, an improved harmonic compensation method of Shunt Active Power Filter(SAPF) by using Proportional-Resonance(PR) model and Deadbeat controller is proposed. This paper deals with the theoretical analysis necessary to avoid the phase delay while accurately extracting the fundamental component of the load side current which includes harmonics by using the PR model. And the dynamics and reliability of current control are improved by using the Deadbeat controller which considers the grid side parasitic components causing the mutual interference components in the d-q axis current. So simulations and experiments are carried out to verify the feasibility of the proposed harmonic compensation method.

Treatment-Plan Evaluation Using the Dose Quality Factor (DQF) for Dynamic Conformal Arc (DCA)-based Radiosurgery on Patients Presenting with an Intracranial Tumor

Seung Hoon Yoo,Byung Jun Min,Kum Bae Kim,Sungho Cho,Eun Ho Kim,Jeong Hoon Park,Won-Gyun Jung,Geun Beom Kim,Seung Young Ko,Hyun Soo Shin,Sei Kyung Chang,Ho Jin Jeong,Dong Ho Shin,Kwan Ho Cho 한국물리학회 2016 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.69 No.12

The aim of the present study was to find the optimum dynamic conformal arc (DCA)-based radiosurgery conditions for treatment of patients with intracranial tumors. DCA plans were generated on a commercial treatment-planning system (BrainSCAN v.5.31) for various beam-number and gantry-angle combinations by using computed tomography (CT) scans to delineate the planning target volume (PTV) and the organs at risk (OARs). To evaluate planning quality related to the various planning conditions, we analyzed the dose quality factors (DQFs) for 22 patients as a function of the number and the total angle of arcs related to the target volume, which were determined on the basis of patient-specific features. When the total angle of arcs was less than 250, the DQF values were under 0.98 (worst group). When the total angle of arcs was more than 350 degrees, the DQF values were maximized, and the highest DQF values (best group, DQF > 0.995) occurred in the range between 50 and 120/cm3 for the total angle/target volume condition. In this optimal range of angle/volume, the asymmetric distribution of the arcs resulted in decreased DQF values. For a relatively large target volume (more than 10 cm3), the DQF values were lower than these for a relatively small target volume (less than 10 cm3). Re-planning results showed that the planning quality could be improved using optimized planning conditions. We expect that this study will provide a basis for the evaluation of various DCA conditions prior to actual planning and treatment.

Exergy and Thermoeconomic Analyses of a Carnot Battery System Comprising an Air Heat Pump and Steam Turbine

Kum-Jung Lee,Ho-Young Kwak,Seok-Ho Seo,Junhyun Cho,Si-Doek Oh,Sang-Ok Choi 한국신재생에너지학회 2022 AFORE Vol.2022 No.9