• Title/Summary/Keyword: 장기이식

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Nuclear Medicine Methods of Rejection Diagnosis in Transplanted Rat Model (심장 이식된 백서에서의 거부반응 진단의 핵의학적 방법)

  • Chung, Won-Sang;Kim, Sang-Heon;Kim, Hyuck;Kim, Young-Hak;Kang, Jung-Ho;Choi, Yun-Young;Lee, Chul-Beom
    • Journal of Chest Surgery
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    • v.36 no.6
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    • pp.379-383
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    • 2003
  • Background: An accurate diagnosis of the severity of the rejection after a heart transplantation relies on endomyo-cardial biopsy, but because of its invasiveness and the need for repeated examination makes it is an inappropriate monitoring method. Therefore, we have tried to find a monitoring method that is continuous and less invasive. Material and Method: Heterotopic heart transplantation using Ono-Lindsey Method was done in 20 rats, and then $^{99m}$ Tc-Pyrophosphate (PYP) scan was done after a month, Uptake ratio of transplanted heart to vertebrae (H/V) was obtained to be compared with the biopsy result. Result: Rejection was defined when the H/V uptake ratio was higher than 0.09, and we compared the uptake ratio with the results of biopsy. The result was true positives was 3, true negatives 12, false negatives 2, andfalse positives 3. Therefore sensitivity was 60% and specificity was 80%, diagnostic value was 75%. Conclusion: $^{99m}$Tc-Pyrophosphate (PYP) scan was a useful method for the evaluation of the heart transplantation rejection and it will be helpful for monitoring rejection as an non-invasive and simple method.hod.

Knowledge and Attitude about Organ Donation and Organ Transplantation among the Organ Donation Candidates (장기기증희망자의 장기기증과 장기이식에 대한 지식과 태도)

  • Seo, Young Sim;Lee, Young Hee
    • Journal of Korean Clinical Nursing Research
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    • v.15 no.3
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    • pp.95-105
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    • 2009
  • Purpose: This study was conducted to investigate the knowledge and attitude about organ donation and organ transplantation among the organ donation candidates. Methods: The subjects were 91 candidates who are enrolled in organ transplantation center in general hospitals for organ donation or transplantation. The knowledge and attitude instruments about organ donation and transplantation by Matten, et al. (1991) were utilized. The collected data were analyzed by SPSS/WIN 14.0: descriptive statistics, t-test, ANOVA, $Scheff{\acute{e}}$ test and Pearson correlation coefficient. Results: The mean score of knowledge was relatively low ($9.61{\pm}3.47$, out of 21.0). The mean score of attitude was relatively high ($4.24{\pm}0.97$, of max score 5). There was significant difference (p<.05) in knowledge according to academic career, registered period as a candidate, the intention to participate in an organ donation education. There was significant difference (p<.05) in attitude according to occupation, family's consent, and recommendation to family. The relationship between knowledge and attitude was not stylistically significant (r=.043, p=.683). Conclusion: These findings suggest that nurses should develop educational programs to increase knowledge and positive attitude toward the organ donation and transplantation.

Anterior Cruciate Ligament Reconstruction Using Bone-Patellar Tendon-Bone Autograft - The comparison of mid term & long term follow-up results - (골-슬개 건-골을 이용한 전방 십자 인대 재건술 - 중기 및 장기 추시 결과의 비교 -)

  • Song Eun Kyoo;Yoon Taek Rim;Lee Young Keun;Kim Jong Seok
    • Journal of the Korean Arthroscopy Society
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    • v.4 no.2
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    • pp.117-122
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    • 2000
  • Purpose : To compare the mid term with long term follow up results of the anterior cruciate ligament(ACL)> reconstruction using patellar tendon. Materials and Methods : Seventy-six cases, which could be followed up more than 2 years were included in this study. They were classified into two groups, mid-term group(41 cases) with mean follow-up periods of 2 years and 10 months and long-term group(35 cases) off years and 6 months. Clinical and radiological results and peripatellar complications were evaluated & compared. Results . There was no statistically significant difference in radiological finding and anterior instability between two groups. However, the incidence of anterior knee pain, paresthesia at incision site, kneeling pain, crepitus and quadriceps weakness was lower in long-term group than in mid-term group. Conclusion : ACL reconstruction using patellar tendon graft could successfully restone the stability of knee joint, but there are some complications in donor site and patellofemoral joint. However this complications were gradually decreased with long term follow-up.

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Current Perspectives on Emerging CAR-Treg Cell Therapy: Based on Treg Cell Therapy in Clinical Trials and the Recent Approval of CAR-T Cell Therapy (장기이식 거부반응과 자가면역질환 치료제로서의 CAR Treg 세포치료제의 가능성: Treg 세포치료제 임상시험 현황과 CAR T 세포치료제 허가 정보를 바탕으로)

  • Kang, Koeun;Chung, Junho;Yang, Jaeseok;Kim, Hyori
    • Korean Journal of Transplantation
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    • v.31 no.4
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    • pp.157-169
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    • 2017
  • Regulatory T cells (Treg) naturally rein in immune attacks, and they can inhibit rejection of transplanted organs and even reverse the progression of autoimmune diseases in mice. The initial safety trials of Treg against graft-versus-host disease (GVHD) provided evidence that the adoptive transfer of Treg is safe and capable of limiting disease progression. Supported by such evidence, numerous clinical trials have been actively investigating the efficacy of Treg targeting autoimmune diseases, type I diabetes, and organ transplant rejection, including kidney and liver. The limited quantity of Treg cells harvested from peripheral blood and subsequent in vitro culture have posed a great challenge to large-scale clinical application of Treg; nevertheless, the concept of CAR (chimeric antigen receptor)-Treg has emerged as a potential resolution to the problem. Recently, two CAR-T therapies, tisagenlecleucel and axicabtagene ciloleucel, were approved by the US FDA for the treatment of refractory or recurrent acute lymhoblastic leukemia. This approval could serve as a guideline for the production protocols for other genetically engineered T cells for clinical use as well. The phase I and II clinical trials of these agents has demonstrated that genetically engineered and antigen-targeting T cells are safe and efficacious in humans. In conclusion, both the promising results of Treg cell therapy from the clinical studies and the recent FDA approval of CAR-T therapies are paving the way for CAR-Treg therapy in clinical use.

Psychosocial Pre-Transplant Assessment of Living Kidney Donors (생체 신장 이식 공여자에 대한 정신사회적 평가)

  • Ah Rah Lee;Myungjae Baik;Sang Min Lee;Won Sub Kang;Jin Kyung Park
    • Korean Journal of Psychosomatic Medicine
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    • v.31 no.2
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    • pp.43-49
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    • 2023
  • In Korea, the dependence on living donations is high due to the shortage of organs available for donation compared to the number of people waiting for transplants and the number of living organ donations continues to increase. In particular, the number of living-donor transplantations is high worldwide, highlighting the importance of pre-transplant psychosocial evaluation of living kidney donors. According to previous studies, when evaluating living organ donors before transplantation, it is crucial to determine whether the donor can give informed consent and be aware of the risks after surgery. Pre-transplant evaluation tests such as ELPAT living organ donor Psychological Assessment Tool (EPAT), Live Donor Assessment Tool (LDAT), Living Donation Expectancies Questionnaire (LDEQ), Minnesota Multiphasic Personality Inventory-2 questionnaire (MMPI-2) and Temperament and Character Inventory (TCI) are conducted for donors. After reviewing the literature on these pre-transplant psychosocial assessment tools, we will also look at legal considerations for living kidney donors in Korea and suggest an effective and essential pre-transplant screening evaluation method for living kidney transplant donors.

망막의 거대세포바이러스 감염은 에이즈 환자의 실명 초래

  • 최준용
    • RED RIBBON
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    • s.66
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    • pp.14-15
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    • 2005
  • 거대세포바이러스(cytomegalovirus, CMV)는 헤르페스바이러스에 속하는 바이러스이다. 대부분의 성인이 CMV를 보유하고 있으나, 면역 기능이 정상인 사람에서는 CMV로 인한 질병이 발생하지 않는다. 하지만 에이즈 환자, 장기이식환자, 골수이식환자 등과 같이 면역 기능이 저하된 환자에서는 CMV에 의한 폐렴, 망막염, 장염 등의 질병이 발생할 수 있다.

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Factors Influencing Withdrawal of Life-Sustaining Treatment in Tertiary General Hospital Workers -Knowledge and Attitude of Organ Donation and Transplantation, Awareness of Death, Knowledge and Perception of Hospice Palliative Care- (상급종합병원근무자의 연명치료중단에 미치는 영향요인 -장기기증·이식의 지식 및 태도, 죽음에 대한 인식, 호스피스완화의료에 대한 지식 및 인식-)

  • Je, Nam Joo;Hwa, Jeong Seok
    • Journal of Hospice and Palliative Care
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    • v.21 no.3
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    • pp.92-103
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    • 2018
  • Purpose: This descriptive study was conducted to examine factors that affect hospital workers in their decision to withdraw from life-sustaining treatment, such as knowledge, attitude, and perception of organ donation, transplantation, death and hospice palliative care. Methods: A questionnaire was completed by 228 workers of a tertiary general hospital, and data were analyzed using t-test, ANOVA, and Pearson's correlation by using SPSS 21.0. Results: The subjects' knowledge of biomedical ethics awareness differed by age, education level, occupation, affiliated department, and biomedical ethics education. Their knowledge of brain death, organ donation and transplantation was positively correlated with attitudes toward tissue donation and transplantation, knowledge of hospice palliative care, and perception of hospice palliative care. Their attitudes toward tissue donation and transplantation were significantly correlated with knowledge of hospice palliative care, perception of hospice palliative care, and withdrawal of life-sustaining treatment. Their awareness of death was significantly correlated with knowledge of hospice palliative care, perception of hospice palliative care and withdrawal of life-sustaining treatment. The perception of hospice palliative care was significantly correlated with withdrawal of life-sustaining treatment. Factors associated with their withdrawal of life-sustaining treatment were work at the hospice ward (32.5%), attitudes toward tissue donation and transplantation and perception of hospice palliative care. Conclusion: This study has shown that work at the hospice ward, attitudes toward tissue donation and transplantation and perception of hospice palliative care were related to attitudes toward withdrawal of life-sustaining treatment. More research is needed to further develop various curriculums based on biomedical methods.