• 제목/요약/키워드: Retrospective Study

검색결과 4,624건 처리시간 0.035초

스마트칩 카드을 이용한 광 자극 발광 특성 연구 (A Study on Retrospective of External Radiation Exposure Dose by Optically Stimulated Luminescence of Smart Chip Card)

  • 박상원;유세종
    • 대한방사선기술학회지:방사선기술과학
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    • 제42권5호
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    • pp.379-385
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    • 2019
  • Radiation is used for various purposes such as cancer therapy, research of industrial and drugs. However, in case of radiation accidents such as terrorism, collapsing nuclear plant by natural disasters like Fukushima in 2011, very high radiation does expose to human and could lead to death. For this reason, many people are concerning about radiation exposures. Therefore, assessment and research of retrospective radiation dose to human by various path is an necessary task to be continuously developed. Radiation exposure for workers in radiation fields can be generally measured using a personal exposure dosimeter such as TLD, OSLD. However, general people can't be measured radiation doses when they are exposed to radiation. And even if radiation fields workers, when they do not in possession personal dosimeter, they also can't be measured exposure dose immediately. In this study, we conduct retrospective research on reconstruction of dose after exposure by using smart chip card of personal items through Optically Stimulated Luminescence (OSL). The OSL signal of smart chip card shows linear response from 0.06 Gy to 15 Gy and results of fading rate 45 %, 48% for 24 and 48 hours due to the natural emission of radiation in sample, respectively. The minimum detectable limit (MDD) was 0.38 mGy. This values are expected to use as correction values for reconstruction of exposure dose.

합성의약품으로 호전되지 않은 소화기 증상 환자(KCD K-코드)에 대한 반하사심탕 제제 병용의 효과 : 후향적 차트 분석 (Effectiveness of Additional Administration of a Banha-sasim-tang Formulation to Patients with Gastrointestinal Symptoms (KCD K-code) Not Improved by Western Medicines: A Retrospective Chart Review)

  • 김철현;김광호;이영웅;강선이;강건희
    • 대한한방내과학회지
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    • 제42권6호
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    • pp.1349-1355
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    • 2021
  • Objectives: The aim of this study was to evaluate the effectiveness of additional administration of Banha-sasim-tang formulation to patients with gastrointestinal symptoms that did not improve with Western medicines. Methods: The patients who met the inclusion and exclusion criteria were analyzed retrospectively. A paired t-test was performed on the Nepean Dyspepsia Index-Korean version (NDI-K) scores before and after administering the Banha-sasim-tang formulation. Results: A total of 27 subjects were included. The mean duration of taking the Banha-sasim-tang formulation was 15.6±3.1 days. The most commonly used Western medicine before taking the Banha-sasim-tang formulation was rebamipide. The means of the NDI-K score were 57.4±21.8 before administering Banha-sasim-tang formulation and 34.9±16.5 after administration, and the difference was statistically significant (p<0.0001). No serious side effects were encountered while taking the Banha-sasim-tang formulation. Conclusions: For patients whose gastrointestinal symptoms do not improve with Western medicines, additional administration of Banha-sasim-tang formulation may be an option. However, as this study is a retrospective chart review, prospective, large-scale, double-blind studies are needed in the future.

비만 환자의 한의복합치료 후 비만 개선 효과: 후향적 연구 (Effect of Complex Korean Medicine Treatment on Obese Patient: A Retrospective Study)

  • 김병준;이은정;김용진;구원회;이원구;김기병;오민석
    • 한방비만학회지
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    • 제22권1호
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    • pp.47-53
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    • 2022
  • Objectives: The purpose of this study was to observe the effect of improving obesity after 4 week complex Korean medicine treatment in obese patients by retrospectively analyzing. Methods: A retrospective chart review was conducted on 44 patients who received obesity treatment at 23 Korean medicine clinics in Daejeon city. We analyzed weight, body mass index (BMI), body fat percentage, body fat mass, muscle mass, hip and waist circumference, EuroQol-5D (EQ-5D), Korean version of obesity-related quality of life scale (KOQOL), and satisfaction surveys at 4 and 8 weeks after treatment. Results: The weight, BMI change after 4 weeks and 8 weeks was decreased significantly. In addition, there were significant differences in fat mass, muscle mass, waist circumference, and hip circumference. Life quality scale EQ-5D and KOQOL showed decreased significantly. In the evaluation of overall satisfaction, safety, help level, recommendation intention, and revisit intention, more than 89% answered positively that they were satisfied. There were no serious side effects. Conclusions: It was significant effect on weight loss and obesity improvement after complex Korean medicine. And quality of life evaluation and satisfaction survey also show positive results.

니콜라스 게스키에르에 대한 발렌시아가 디자인의 미적특성 (The Aesthetic Characteristics of Balenciaga Designed by Nicolas Ghesquiere)

  • 김선영
    • 복식
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    • 제57권5호
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    • pp.45-57
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    • 2007
  • This study is on the aesthetic characteristics of Balenciaga design succeeded to by Nicolas Ghesquiere, and tried to understand his pursuing brand's new design concept and aesthetics. The three key characteristics of Balenciaga designed by Nicolas Ghesquiere are Retrospecitvness, Eclecticism, Deconstruciton. First, Balenciaga looks retrospective sense through reinterpreting tradition. Nicolas created a new sense of expression by mixing his proper instinct with Balenciaga's original properties, historical components of the past western dress, and various design elements of assistants who used to work in Balenciaga. Second, Balenciaga expresses uncertain meaning by compromising between contrast and synthesis among the past and the future, the males and the females, simple and ornament, or different styles. Third, Nicolas's experimental and outsider-oriented view of Deconstruction through reorienting of thought is considered a try for a new formative concept as a designer who is not limited by general rules.

A Retrospective, Quantitative Review of the ETAK Journals

  • Lee, Eunpyo;Shin, Myeong-Hee
    • 영어어문교육
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    • 제18권3호
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    • pp.135-148
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    • 2012
  • This is a retrospective, quantitative review of the English Teachers Association in Korea, namely the ETAK and its journals during the period of 18 years ever since the establishment in August 1994. It examines the history of the association, its domestic and international conferences, and most importantly, its articles. The purpose was to learn how it has emerged into a full-fledged organization, what the preferred language of the article has been, how the volume size has changed, and how many foreign scholars' articles have been contributed. It also looked into the number of authors each article was written by to examine the trend of cooperative work in the field of English education. Classification of the research topic was focused on the 4 skills of the language, grammar and vocabulary, literature, linguistics and all the rest areas were categorized into others. From the results of the study, suggestions for the future ETAK in the Korean English teaching were to be given.

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Retrospective Evaluation of Heptaplatin Nephrotoxicity in Patients with Advanced Gastric Cancer

  • Park, Mi-Sook;Kang, Min-Hee;Choi, Sun-Ok;Chang, Sun-Mee;Kim, Jun-Cheol;Lee, Myung-Koo
    • 대한약학회:학술대회논문집
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    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2-2
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    • pp.250.2-251
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    • 2003
  • There are contradicting reports on the nephrotoxicity of heptaplatin, a new platinum derivative. A retrospective study was performed to compare the toxicities of heptaplatin-containing regimens with the ones not. Seventy-seven patients with advanced gastric cancer who did not receive any chemotherapy within the last 3 months before the treatment were evaluated. Among them 38 patients received heptaplatin-containing regimens (heptaplatin/epirubicin/5-FU: 26, heptaplatin/5-FU: 12) and 39 patients received other regimens (cisplatin/epirubicin/5-FU:11, epirubicin/leucovorin/5-FU: 28). (omitted)

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만성 요통에 대한 매선요법을 병행한 한방치료의 효과에 대한 후향적 연구 (The Effects of Korean Medical Treatment Combined with Embedding Acupuncture on Patients with Chronic Lower Back Pain: a Retrospective Study)

  • 김선욱;신정철
    • Journal of Acupuncture Research
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    • 제33권2호
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    • pp.165-171
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    • 2016
  • Objectives : The purpose of this study was to investigate the clinical effects of Korean medical treatments combined with Embedding acupuncture on patients with chronic lower back pain. Methods : We reviewed the medical records of 40 patients with chronic lowerback pain hospitalized at Dongshin Korean Medicine Hospital from March, 2015 to February, 2016. They were divided into two groups: the embedding acupuncture group(20 patients) and the non-embedding acupuncture group(20 patients). To evaluate the efficacy of the treatments, the 40 patients were asked to complete a Numerical Rating scale (NRS) and the Oswestry Disability Index (ODI) four times during admission. Results : The mean NRS of the embedding acupuncture group decreased more significantly than the non-embedding acupuncture group at days three and ten of admission. The ODI change and ODI rate of change of the embedding acupuncture group were significantly greater than the non-embedding acupuncture at days three and ten of admission. Conclusion : Korean medical treatment combined with embedding acupuncture might be effective in reducing pain and improving the life quality of patients with chronic lower back pain. We hope that further studies will be done to produce more clinical data and ensure effective application of these results.

동일날짜 처방전 2매 이상인 외래 소아환자 의약품처방의 적정성에 대한 후향적 평가 (Retrospective Drug Utilization Review on the Same-Day Multiple Prescriptions for Pediatric Outpatients)

  • 남궁보라;손현순;최경업;신현택
    • 한국임상약학회지
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    • 제22권1호
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    • pp.73-80
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    • 2012
  • This study was to determine the inappropriate drug use in pediatric outpatients who received 2 or more prescriptions on the same day. Retrospective drug utilization reviews (DURs) were implemented to samples obtained from national health insurance claims data during December 2008 to February 2009, using 5 DUR criteria (duplication, drug-drug interaction, drug-disease interaction, drug-age contraindication, incorrect dosage) established in the Drug Information Framework (DIF)-$Korea^{TM}$, DUR program. Among 38,451 claims analyzed in the study, 74.7% had more than one conflicts in the 5 DUR modules. Among 16,472 patients analyzed, 49.6% had conflicts with duplication criteria composing of ingredient duplication (23.3%) and therapeutic class duplication (39.6%). Incorrect dosages were found in 73.6% of patients and under-dosage conflicts accounted for 59.9%, which was higher than over-dosage conflicts (38.3%). In this study, inappropriate drug prescriptions such as under-dose, pediatric contraindication and therapeutic duplication were prevalent in pediatric outpatient settings, suggesting much more awareness to the society, to prevent drug related problems in a vulnerable pediatric group.

비예정과 예정된 재입원 환자들간의 관련 요인 분석 (Association Between Unplanned and Planned Readmissions in an University Hospital)

  • 오현주;유승흠
    • 한국의료질향상학회지
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    • 제4권2호
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    • pp.242-259
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    • 1997
  • This study describes associated factors of readmission of 213 inpatients from an university hospital in Seoul. This retrospective study reviewed medical records of patients who discharged from a hospital stay for general diseases between 1 August 1995 and 31 October 1995, Cases were 68 discharge patients with an unplanned readmission within 30 days of discharge from an index stay. And the other cases are 145 patients who had more than two discharges and didn't have an unplanned readmission within 30 days. Logistic regression model was analyzed and the results were as follows; 1. duration of readmission, rate of unpayed, room, path, and risk of disease were more likely to be readmitted unexpectedly than the expected readmission patients. 2. early readmission, low risk condition group, and inadquateness of discharge plann for patients had unplanned radmissions rather than planned readmissions. Therefore, discharge planning education to health care provider is required and assessement of discharge planning should be evaluated. Readmissions are usually for related problems that arose during the original hopitaliztion and caused cost problems. Especially the unplanned readmissions are frequently preventable. Ultimately, models for readmissions can serve as a valuable clinical tool for target high-risk patients and older patients and with this kind of tools we can reduce hospital readmissions and maintain high-quality of inpatient care.

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Comparison of IVF-ET outcomes in patients with hydrosalpinx pretreated with either sclerotherapy or laparoscopic salpingectomy

  • Na, Eun Duc;Cha, Dong Hyun;Cho, Jung Hyun;Kim, Mi Kyoung
    • Clinical and Experimental Reproductive Medicine
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    • 제39권4호
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    • pp.182-186
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    • 2012
  • Objective: Many studies have demonstrated that hydrosalpinx has a detrimental effect on the outcome of IVF. Treating hydrosalpinges prior to the IVF procedure in women with hydrosalpinges is thought to improve the likelihood of successful IVF outcome. Vaginal ultrasound-guided aspiration of hydrosalpinx fluid (HSF) with injection of the sclerosing agent in situ might be simpler than invasive procedures like salpingectomy. Therefore, we carried out a retrospective study on the effects of ultrasound-guided HSF aspiration and injection of the sclerosing agent of ultrasonically diagnosed hydrosalpinx on IVF outcome. Methods: In our retrospective study, 97 tubal factor infertile female patients that underwent IVF treatment between January 2005 and December 2012 at the Reproductive Medicine Center of CHA Hospital were divided into two study groups. Fifty-six patients underwent interventional ultrasound sclerotherapy (group 1), and the remaining 41 patients received laparoscopic salpingectomy (group 2) before IVF. We compared the IVF outcomes of the two groups. Results: The results showed that ultrasound-guided HSF aspiration and sclerotherapy have IVF outcomes comparable to laparoscopic salpingectomy. Conclusion: Interventional ultrasound guided sclerotherapy before IVF is an effective and less invasive prophylactic intervention alternative to salpingectomy with hydrosalpinx.