Optimizing the Hospital Blood Bank Stock in Korea: A Comparative Analysis of the Uniform 5-Day Stock Index and a Novel Blood Stock Index

Park Seo-Jin,Lim Young Ae,Kim Kyung-Hee 대한진단검사의학회 2024 Annals of Laboratory Medicine Vol.44 No.3

Background: Maintaining optimal blood inventory levels in hospitals is important to prevent blood shortage and wastage. We aimed to provide an efficient blood inventory management strategy for hospital blood banks nation-wide by comparing the current use of 5-day issuable stock (IS) with Lim’s IS as a novel target IS. Methods: The average and CV of daily usage (DU) were calculated from information entered into Korea’s Blood Management System by 194 participating hospitals in 2019 and 2020. Using these data, Lim’s IS was calculated by determining the simulated annual average blood shortage day nearest to 1 for each blood group in each hospital. The 5-day IS (5IS) was estimated by multiplying the average DU in 2018 by five to count the shortage days in 2019. Results: The average DU (0.3–231.3 units) and corresponding CV (0.33–7.14) in the participating hospitals were inversely proportional (r=–0.699 to –0.695). The hypothetical averages of 5IS and Lim’s IS were 27.0±41.2 and 24.7±20.8, respectively (P=0.006). The shortage days for 5IS and Lim’s IS were 8.9±22.7 and 1.0±1.9, respectively (P<0.001). Conclusions: While 5IS was unacceptable for universal application, Lim’s IS remained near one shortage day and is considered more efficient than 5IS. Hospitals should implement indicators that consider DU and its variations. This is the first study to introduce Lim’s IS as an indicator of optimal blood inventory, and the data are expected to provide guidance for effective blood inventory management nationwide, particularly during blood shortages.

성인의 급성 설사에 대한 로페라미드 옥사이드의 효과: 위약과의 무작위 이중 맹검 비교 다시설 시험

박영태,정희진,박중원,이계희,김나영,임선희,윤병철,한동수,이오영 大韓消化器病學會 1998 大韓消化器病學會誌 Vol.31 No.5

All-carbon-based cathode for a true high-energy-density Li-O₂ battery

Lim, Hee-Dae,Yun, Young Soo,Cho, Se Youn,Park, Kyu-Young,Song, Min Yeong,Jin, Hyoung-Joon,Kang, Kisuk Elsevier 2017 Carbon Vol.114 No.-

<P>Li-O-2 batteries have a high theoretical energy density; however, their current cathode system based on a heavy metal framework strikingly diminishes their real energy density. Herein, we report the fabrication of all-carbon-based cathodes composed of conventional active carbon and a carbon mesh (CM) framework produced from waste silk fabric by simple pyrolysis. CM frameworks show a high electrical conductivity of similar to 150 S cm(-1), good tensile strength of 34.1 +/- 5.2 MPa, and a Young's modulus of 4.03 +/- 0.7 GPa, as well as a well-ventilated ordered macroporous structure. These all-carbon-based cathodes exhibit stable cycling and high energy densities of similar to 2600 Wh kg(-1) based on total electrode weight, which are 4-15 times higher than those of conventional air cathodes. (C) 2016 Elsevier Ltd. All rights reserved.</P>

정신분열병에 대한 리스페리돈의 효과 및 안정성

이민수,김용구,김영훈,연병길,오병훈,윤도준,윤진상,이철,정희연,강병조,김광수,김동언,김명정,김상훈,김희철,나철,노승호,민경준,박기창,박두병,백기청,백인호,손봉기,손진욱,양병환,양창국,우행원,이정호,이종범,이홍식,임기영,전태연,정영조,정영철,정인과,정인원,지익성,채정호,한상익,한선호,한진희,서광윤 大韓神經精神醫學會 1998 신경정신의학 Vol.37 No.1

연구목적 : 본 시험의 목적은 임상시험 시작전에 연구자들을 대상으로 PANSS Workshop을 통하여 PANSS, ESRS에 대한 국내에서의 표준화 작업을 구축하고 새로운 정신병 치료제인 리스페리돈의 효과와 안정성을 재확인하여 리스페리돈 사용에 대한 적정화를 이루는데 있다. 연구방법 : 1996년 4월부터 1996년 9월까지 국내 39개 대학병원 정신과에 입원중인 혹은 증상이 악화되어 입원하는 정신분열병 환자 377명을 대상으로 다시설 개방 연구를 시행하였다. 1주일간의 약물 배설기간을 가진후, 리스페리돈을 8주간 투여하였고, 기준점, 1주, 2주, 4주, 그리고 8주후에 평가되었다. 용량은 제1일에는 리스페리돈 1mg씩 1일 2회, 제2일에는 2mg씩 1일 2회, 제3∼7일에는 3mg씩 1일 2회 투여하였다. 이후 환자의 임상상태에 따라 임의로 증량할 수 있으며, 최대 일일 16mg을 초과하지 않도록 하였다. 추체외로 증상을 조절하기 위한 투약을 허용하였다. 임상증상 및 부작용의 평가는 PANSS(Positive and Negative Syndrome Scale), CGI(Clinical Global Impression) 그리고 ESRS(Extrapyramidal Symptom Rating Scale)을 사용하였다. 연구결과 : 377명중 343명(91%)이 8주간의 연구를 완결하였다. 치료 종결시점인 8주후 PANSS 총점수가 20% 이상 호전된 경우를 약물 반응군으로 정의할때, 약물반응군은 81.3%였다. 리스페리돈에 반응하는 예측인자로는 발병연령, 이전의 입원 횟수, 유병기간이 관련 있었다. 리스페리돈은 1주후부터 PANSS양성, 음성, 및 일반정신병리 점수상에 유의한 호전을 보여 효과가 빨랐다. CGI의 경우도 기준점에 비해 1주후부터 유의한 감소를 나타내었다. ESRS의 경우, 파킨슨 평가점수는 기준점과 비교해 투여 1주, 2주, 4주후 유의하게 증가되었다가 8주후 기준점과 차이가 없었다. Dystonia 평가점수는 1주후만 유의한 증가를 보였으며, dyskinesia 평가점수는 유의한 차이가 없었다. 혈압, 맥박수의 생명징후 및 일반 혈액학 검사, 생화학적 검사, 심전도 검사에서 유의한 변화는 없었다. 결 론 : 이상의 다시설 개방 임상 연구를 통해 리스페리돈은 정신분열병 환자에서 양성증상뿐만 아니라 음성증상 및 전반적인 증상에도 효과적인 것으로 사료된다. 보다 명확한 평가를 위해서는 다른 항정신병약물과의 이중맹검 연구가 필요할 것으로 생각되며, 또한 장기적 치료에 대한 평가도 함께 이루어져야 하겠다. Objective : The purpose of this study was to investigate the efficacy and safety of risperidone in the treatment of Korean schizophrenic patients. Method : This multicenter open study included 377 schizophrenic patients drawn from 39 university hospitals. After a wash-out period of 1 week, the schizophrenic patients were treated with risperidone for 8 weeks and evaluated at 5 points ; at baseline, and 1, 2, 4 and 8 weeks of treatment. The dose was increased from 2mg/day(1mg twice daily) to 6mg/day(3mg twice daily) during the first week and adjusted to a maximum of 16mg/day over the next 7 weeks according to the patient's clinical response. Medication to control extrapyramidal symptoms was permitted. The psychiatric and neurological status of the patients was assessed by PANSS, CGI, and ESRS scales. Results : 343(91%) of 377 patients completed the 8-week trial period. Clinical improvement, as defined by a 20% or more reduction in total PANSS score at end point, was shown by 81.3% of patients. The predictors of response to risperidone were associated older age, shorter duration of illness, fewer previous hospitalization. Risperidone had rapid onset of action ; a significant decrease of the total PANSS and three PANSS factor(positive, negative, general), and CGI was already noticed at the end of first week. For the ESRS, parkinsonism rating scores were significantly increased until week 4 comparing with baseline. Dystonia rating scores were significantly increased until week 1, and dyskinesia rating scores were not significantly changed during the study. Laboratory parameters including vital sign, EKG, hematological, and biochemical values showed no significant changes during the trial. Conclusions : This study suggests that risperidone is generally safe and effective against both the positive and negative symptoms in our group of patients.

말초혈액에서 Tg mRNA에 대한 역전사 중합효소 연쇄 반응법의 갑상선 재발암의 분자생물학적 진단

권성일,박기룡,김현영,신채희,임영찬,최영식,박요한,이강대,장희경,이재화,염하용 대한내분비학회 2002 Endocrinology and metabolism Vol.17 No.4

연구배경: 갑상선암은 다른 조직에 발생한 암에 비해 비교적 천천히 자라므로 대부분 예후가 양호하지만, 일부에서는 주위 조직으로 침윤하거나 혹은 원격 전이로 인하여 치명적인 결과를 초래할 수 있다. 갑상선전절제술 및 131^I 제거술 후 경과 관찰시 갑상선암의 재발과 전이의 진단에 있어 131^I 스캔과 혈청 Tg의 측정이 현재 임상에서 가장 많이 이용되고 있으나 이 방법에는 여러 가지의 결점이 있다. 최근 Tg mRNA에 대한 RT-PCR법을 이용한 여러 연구결과는 131^I 스캔과 혈청 Tg 측정의 결점을 보완할 수 있는 좋은 보조적인 진단법으로 이용할 수 있을 가능성을 제시하였다. 이에 말초혈액에서 측정한 Tg mRNA에 대한 RT-PCR법이 갑상선 절제술 및 방사성요드 치료 후 갑상선암의 재발 및 전이 유무의 진단에 유용한가를 알아보고자 이 연구 시행하였다. 방법: 분화된 갑상선암으로 진단된 후 갑상선전절제술을 시행받고 방사성요드 치료를 받은 환자 중 현재까지 한차례에 이상 추적 방사성요드 전신 스캔을 시행하고 추적관찰이 가능했던 유두선암 35예, 여포선암 5예를 대상으로 연구를 시행하였다. 대상군은 131^I 스캔 소견상 음성인 군(Group Ⅰ), 잔여조직이 있는 군(Group Ⅱ), 국소전이가 있는 군(Group Ⅲ), 및 원격전이 군(Group Ⅳ)으로 구분하였다. 정상 대조군은 갑상선질환이 없는 10예의 건강인으로 하였다. 대상환자의 말초혈액을 이용한 Tg mRNA에 대해 특이적인 primer를 이용하여 RT-PCR 및 nested RT-PCR을 시행하였다. 결과: 본 연구 결과는 다음과 같다. 1) 131^I 스캔 소견상 음성인 군 21예 중 1예에서 Tg가 양성소견을 보였다. Anti Tg Ab가 양성인 4예 모두 Tg가 음성을 보였다. 잔여조직이 있거나 국소전이 및 원격전이를 보인 군 19예 중 Tg가 양성인 경우는 4예였으나, Tg mRNA는 전예에서 양성이었다. 2) 131^I 스캔에서 국소 및 원격전이 소견을 보인 8예 중 4예에서 Tg가 음성으로 131^I 스캔과 혈청 Tg 사이에 불일치 소견을 보였다. 3) 말초혈액에서 특이적인 primer를 이용하여 RT-PCR 및 nested RT-PCR을 시행한 결과 대상군 40예 및 정상 대조군 10예 모두에서 Tg mRNA가 양성을 보였다. 결론: 본 연구에서 갑상선 절제술 및 방사성요드 치료 후 갑상선암의 재발 및 전이 유무를 평가함에 있어 역전사 중합효소 연쇄 반응법을 이용한 Tg mRNA 측정의 의의는 재평가되어야 한다고 생각된다. Background: Differentiated thyroid cancer is the most common endocrine malignancy. Despite advances in the treatment of thyroid cancer, disease recurrence and metastasis may occur in as many as 20% of patients, and so continues to pose major problems in its clinical management. Serum thyroglobulin (Tg) measurements, by immunoassay, are used to detect residual or recurrent thyroid cancer following thyriod ablation. However, the usefulness of immunoassay is limited by both the requirement for thyroid hormone withdrawal, to attain optimal test sensitivity, and interference by the antithyroglobulin antibody (Anti-Tg Ab). Recent studies have reported the clinical usefulness of reverse transcription-polymerase chain reaction (RT-PCR) detection of Tg mRNA in the peripheral blood of patients with differentiated thyroid carcinomas. We performed this study to evaluated the usefulness RT-PCR of Tg mRNA in peripheral blood of patients with thyroid carcinoma following a total thyroidectomy and radioiodine ablation therapy. Methods: Forty cases that underwent a total thyroidectomy and radioiodine ablation therapy were included in this study. Of the 40 patients, 35 were papillary carcinomas and 5 were follicular carcinomas. Ten normal control subjects were also studied. Tg mRNA was extracted. Then RT-PCR and nested RT-PCR, were run with specific Tg primers. Concurrently, DNA sequencing of the isolates was carried out to prove the isolates were identical to the nucleotide sequence of the Tg. Results: The Tg was detected in 4 of 19 patients, with either a residual thyroid bed, or metastasis, on a 131^I whole body scan and in 1 of 21 patients with a negative radioiodine scan. Surprisingly, the Tg mRNA was detected in all the patients and normal controls. Conclusion: From our results we can not recommend Tg mRNA, detected by RT-PCR in peripheral blood, as a tumor marker superior to that of the Tg serum level. We consider an intensive re-evaluation of the method is required before considering its clinical applications (J Kor Soc Endocrinol 17:501∼513, 2002).

蠶桑産物에 관한 연구경향 : 1980년대 이후 문헌을 중심으로

임영희,김미원 대전대학교 생활과학연구소 1999 생활과학연구 Vol.5 No.-

The studies of silk yarn products have been made since 1960. Still the study on non fibrous functional foods was not included in those studies. Recently, research activities about functional foods are going on progress. Upon examination of the study made after 1980, thirteen topics were related to mulberry leaf and adult diseases, and effect of Cd & Pb containded in drinking water. The studies of mulberry trees have been made in various way and fifty two studies are presented. Mulberry tree is a plant belongs to family of mulberry tree. The special feature is that the leaf has saw-tooth and the branch does not have thorn. There are ten different kinds of mulberry trees including Morus alba Linne distributed in Korea and China. About eighteen topics were related to silkworm and mulberry. In conclusion, the study about functional products use to utilize silk yarn products has not been made sufficiently, even almost no data presented. Various functional foods such as mulberry leaf tea and mulberry leaf noodles should be studied and developed.

조택원의 예술세계에 나타난 민족적 성향에 관한 연구

임희영 이화여자대학교 체육대학 보건체육연구소 2001 이화체육논집 Vol.5 No.-

With Ishihi-baku's Shinmuyong (new dance) performances in 1926 as the starting point, dance, on this land, which had been looked down upon as being vulgar due to feudalistic and confucianistc ideologies, gets established and recognized as one field of art. Differently from prior laying of importance on dance itself, shinmuyong gets settled down as a dance, on stage, of which the creativity and the artisticality of the creator are regarded as important. Cho, Taek-won, together with Choi, Seung-hee, became a pupli of Ishihi-baku(Seok, Jeong-mak), and accelerated the settling down of shinmuyong in Korea. He is one of the figures who made shinmuyong a model of Korean modern dance. This thesis intends to double the value endowment regarding the ethnic group inclination as they appeared in Cho, Tark-won's art view and works of art. It has as its objective the illumination of Cho, Taek-won's existence and the ethnic meaning. Under the conditions of activity in which they could not but be passive and general due to Japan, in the situation of the time in whoch it was the forcible rule by the Japanese Empire, he had been engaged in lively activities in the aspect of the independent standing of dances. As such as the theoretical background, by taking a look at the society, cultural situation, traditions, and the concept of ethnicality of the time, Cho, Taek-won's activities and art view in mordern dance and ethnic inclinations as they appear in the representative works of art are reasoned out. Regardless of the results influenced by shinmuyong, as an art which is essentially creation-centered, in the aspect that the right to freedom regarding the system of values and the judgments of the creating person are possessed, and by illuminating the ethnic inclinations of Cho, Taek-won, dances, as artistic activities, this thesis hoped to be utilized as a basis for presenting the future direction of dances, as artistic activities that achieve harmonious balances of historical participation and cultural creations.

각종 전분의 이화학적 특성 및 가공식품의 이용에 관한 고찰 : 국내 학회지를 중심으로

임영희,김미원 대전대학교 생활과학연구소 2000 생활과학연구 Vol.6 No.-

Literatures about starches have been published on the journal of association from 1970th to 2000. Study of acorn starch studied steadly from 1970th and trend of these studies was mainly about physio-chemical nature, physical characteristics, molecular structure and functional characteristics. Studies of corn starch are total 12 articles and was started from 1980th. Cowpea starch and mung bean starch were studied comparatively and studied mostly about physio-chemical characteristics and reology. Studies of chestnut starch started since 1990th and chestnut starch is expected to large amount of consumption due to possibility of being made to chestnut jelly. In addition, there are 8 articles about bean starch from 1980th, and studies about rice starch were studied simultaneously. Reserches for potato and sweet potato starch were also carried out, and potato starch was studied about gelatinization and starch jelly, and studies of sweet potato was mostly about physio-chemical characteristics. And Studies of sweet potato were started at 2000. The other studies of starch were about barley starches, yam starch, buckwheat starch, starch, and arrowroot starch.

대전대학교 학생의 음료섭취 실태 조사

임영희,박명순,정은영 대전대학교 생활과학연구소 1999 생활과학연구 Vol.5 No.-

The purpose of this study was to investigate beverage consumptions of students at Taejon University. This survey was carried out through questionnaires, and subjects were 265 students(110 males and 155 females) between June 9-24, 1999. All statistical data analysis were conducted using the SPSS/PC+. The results of this studies are follows. 1. Mean height of male and female students were 173.4㎝, 161.2㎝ and the mean body weight of those were 64.3㎏, 51.7㎏, respectively. 2. BMIs of male and female students were 21.4, 19.9, respectively. According to BMI underweight subjects were 24.2%, normal and overweight subjects were 67.2%, 8.7%, respectively. Also only 51.3% of the subjects correctly self judged their weight. 3. The preferred beverage were water(3.17), coke(3.06), coffee(2.94), milk (2.75) for male students, and water(3.02), milk(2.75), coke(2.63), coffee(2.63) for female students. 4. The criterion of choosing beverage was taste(58.1%), effects(13.2%), materials(12.1%), prices(10.9%). 5. Coffee was significant positive correlation between frequency of eating out and smoking, coke was frequency of snack and smoking.

염화수소(Hydrogen Chloride)와 관련성이 추정되는 직업성 천식 1례

임현술,유선희,김두희,이영현 동국대학교 경주대학 1996 東國論集 Vol.15 No.-

염화수소(hydrogen chloride)는 분자식은 HCl이며 염산가스라고 불리기도 하며 강한 자극성 냄새가 나는 무색의 기체이다. 물에 녹아서 염산이 되며 공기 중에서 물에 녹기 쉬운 성질 때문에 연무 형태로 존재한다. 본 증례로 34세 남자로 타이어에 사용되는 철사를 제조하는 공장에 다니는 근로자로 간헐적으로 고농도의 염화수소에 폭로된 후 1년 8개월의 잠복기를 거친 후 기관지 천식이 발생한 예로 총 호산구수는 증가되어 있었으나 혈청 IgE는 정상 범위였다. 55가지 알레르기항원을 사용한 피부 단자검사에서 House dust, Hay dust, Mixed grain, Dermatophagoides farinae와 Dermatophagoides pterynyssinus에 양성 반응을 보였고, 유발검사에서는 양성 반응을 보였다. 직업성 여부를 파악하기 위해 작업장 내에서 8시간 동안 근무하면서 30분 내지 한시간 간격으로 폐기능검사를 시행한 결과 1초간 노력성 호기량(FEV1) 이 20%이상 감소하여 2시간 동안 지속되는 양성 반응을 관찰할 수 있었다. 본 증례는 외인성 천식 소질이 있으면서 작업장 내에서 고농도의 염산증기에 폭로되어 기관지 천식 발작이 되었는데, 작업장의 고농도의 염화수소가 기관지 천식의 기여요인 또는 악화요인으로 작용하였다고 생각한다. Occupational asthma is an importent occupation-related disease. We exprienced a case of asthma induced by high concentration of hydrogen chloride vapour. The prevalence rate of this asthma is unknown. The patient of the case complained of cough, sputum and dyspnea after exposure to hydrogen chloride. Serum IgE(IgE-PRIST) was normal range but total eosinophil count was elevated. FEV₁ was 73% of predicted value and expiratory wheezing sound was observed on whole lung field. FEV₂was decreased to 48.9% of baseline on 5 hours 30 minutes, respectively, after exposure of hydrogen chloride at workplace. On follow up examination, the patient complained of an intermittent dyspnea and cough.