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Ju MK, Yoo SH, Choi KH, Yoon DS, Lim JH. Selective hanging maneuver and rubber band retraction technique for pure laparoscopic donor right hepatectomy. Asian J Surg 2024; 47:354-359. [PMID: 37806879 DOI: 10.1016/j.asjsur.2023.08.227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 08/06/2023] [Accepted: 08/30/2023] [Indexed: 10/10/2023] Open
Abstract
BACKGROUND Pure laparoscopic donor hepatectomy (PLDH) is an increasingly performed procedure despite its technical difficulties. This study introduced a selective liver parenchymal hanging maneuver and rubber band retraction technique for PLDH. METHODS We retrospectively reviewed perioperative data from 58 patients who underwent donor right hepatectomy (including right extended) between March 2009 and February 2021. Eighteen patients underwent open donor right hepatectomy (ODRH) and 38 patients underwent pure laparoscopic donor right hepatectomy (PLDRH). RESULTS All PLDRH donors underwent the procedure without the need for open conversion. The median PLDRH operative time was 396.84 ± 72.459 min, the median PLDRH intraoperative bleeding amount was 496.05 ± 272.591 ml, and the warm ischemic time was 8.77 ± 3.062 min. Compared to ODRH, laparoscopic surgery showed further advantages in terms of postoperative hospital stay (10.94 ± 4.036 days vs. 8.03 ± 2.646 days, respectively, P = 0.01) and estimated blood loss (676.67 ± 321.046 ml vs. 496.05 ± 272.591 ml, respectively, P = 0.033). CONCLUSIONS The selective liver parenchymal hanging maneuver and rubber band retraction technique is a simple and effective pure laparoscopic procedure for donor hepatectomy. Our results demonstrate the safety and feasibility of this technique.
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Affiliation(s)
- Man Ki Ju
- Department of Surgery, Yonsei University College of Medicine, Seoul, South Korea; Liver Clinic, Gangnam Severance Hospital, Seoul, South Korea
| | - Sung Hwan Yoo
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea; Liver Clinic, Gangnam Severance Hospital, Seoul, South Korea
| | - Ki Hong Choi
- Department of Surgery, Yonsei University College of Medicine, Seoul, South Korea
| | - Dong Sub Yoon
- Department of Surgery, Yonsei University College of Medicine, Seoul, South Korea
| | - Jin Hong Lim
- Department of Surgery, Yonsei University College of Medicine, Seoul, South Korea; Liver Clinic, Gangnam Severance Hospital, Seoul, South Korea.
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Park S, Choi YR, Joo DJ, You YK, Kim BW, Nah YW, Cho JY, Kim TS, Hong G, Ju MK, Suh SW, Yang JD, Park PJ, Jeong J, Moon JI, Kim DS, Rhu J. The effect of donor against recipient one-way HLA mismatch on liver transplantation outcomes from a multicenter registry analysis. Sci Rep 2023; 13:22296. [PMID: 38102167 PMCID: PMC10724161 DOI: 10.1038/s41598-023-49178-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 12/05/2023] [Indexed: 12/17/2023] Open
Abstract
Donor against recipient one-way Human leukocyte antigen (HLA) mismatch (D → R one-way HLA MM) seemed strongly associated with graft-versus-host disease (GVHD). The aim of this study is to investigate the relevance of D → R one-way HLA MM in outcome of liver transplantation (LT). We retrospectively analyzed 2670 patients in Korean Organ Transplantation Registry database between April 2014 and December 2020. The patients were categorized into two groups whether D → R one-way HLA MM or not and evaluated the outcomes of LT between the two groups. 18 patients were found to be D → R one-way HLA MM. The incidence of GVHD (0.3% vs. 22.2%, p < 0.001) and mortality rate (11.6% vs. 38.9%, p = 0.003) was much higher in D → R one-way HLA MM group. D → R one-way HLA MM at 3 loci was seemed to be strongly associated with the incidence of GVHD (OR 163.3, p < 0.001), and found to be the strongest risk factor for patient death (HR 12.75, p < 0.001). Patients with D → R one-way HLA MM at 3 loci showed significantly lower overall survival (p < 0.001) but there were no significant differences in rejection-free survival and death-censored graft survival. D → R one-way HLA MM at 3 loci not only affects the overall survival of LT patients but also the incidence of GVHD.
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Affiliation(s)
- Sunghae Park
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University, School of Medicine, 50 Irwon-Dong, Gangnam-gu, Seoul, 135-710, Korea
| | - Young Rok Choi
- Department of Surgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
| | - Dong Jin Joo
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Young Kyoung You
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Bong-Wan Kim
- Department of Liver Transplantation and Hepatobiliary Surgery, Ajou University School of Medicine, Suwon, Korea
| | - Yang Won Nah
- Department of Surgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - Jai Young Cho
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Tae-Seok Kim
- Department of Surgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
| | - Geun Hong
- Department of Surgery, Ewha Womans University Medical College, Seoul, Korea
| | - Man Ki Ju
- Department of Surgery, Yonsei University Gangnam Severance Hospital, Seoul, Korea
| | - Suk-Won Suh
- Department of Surgery, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Jae Do Yang
- Department of Surgery, Jeonbuk National University Hospital, Jeonju, Korea
| | - Pyoung Jae Park
- Department of Surgery, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Jaehong Jeong
- Department of Surgery, School of Medicine, Soonchunhyang University, Bucheon, Korea
| | - Ju Ik Moon
- Department of Surgery, Konyang University Hospital, Daejeon, Korea
| | - Dong-Sik Kim
- Department of Surgery, Korea University College of Medicine, Seoul, Korea.
| | - Jinsoo Rhu
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University, School of Medicine, 50 Irwon-Dong, Gangnam-gu, Seoul, 135-710, Korea.
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Kim DG, Hwang S, Kim JM, Choi Y, You YK, Choi D, Ryu JH, Kim BW, Kim DS, Cho JY, Ju MK, Kim TS, Nah YW, Lee JG, Kim MS, Joo DJ. Outcomes and Risk Factors for Liver Transplantation Using graft-to-Recipient Weight Ratio Less than 0.8 Graft from Living Donors: Multicentric Cohort Study. Ann Surg 2023:00000658-990000000-00653. [PMID: 37753651 DOI: 10.1097/sla.0000000000006104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
OBJECTIVE To compare graft survival after LDLT in patients receiving GRWR<0.8 versus GRWR≥0.8 grafts and identify risk factors for graft loss using GRWR<0.8 grafts. SUMMARY BACKGROUND DATA Favorable outcomes after living donor liver transplantation (LDLT) using graft-to-recipient weight ratio (GRWR)<0.8 grafts were recently reported; however, these results have not been validated using multicenter data. METHODS This multicentric cohort study included 3450 LDLT patients. Graft survival was compared between 1:3 propensity score-matched groups and evaluated using various Cox models in the entire population. Risk factors for graft loss with GRWR<0.8 versus GRWR≥0.8 grafts were explored within various subgroups using interaction analyses, and outcomes were stratified according to the number of risk factors. RESULTS In total, 368 patients (10.7%) received GRWR<0.8 grafts (GRWR<0.8 group), whereas 3082 (89.3%) received GRWR≥0.8 grafts (GRWR≥0.8 group). The 5-y graft survival rate was significantly lower with GRWR<0.8 grafts than with GRWR≥0.8 grafts (85.2% vs. 90.1%, P=0.013). Adjusted hazard ratio (HR) for graft loss using GRWR<0.8 grafts in the entire population was 1.66 (95% confidence interval [CI] 1.17-2.35, P=0.004). Risk factors exhibiting significant interactions with GRWR<0.8 for graft survival were age ≥60 y, MELD score ≥15, and male donor. When ≥2 risk factors were present, GRWR<0.8 grafts showed higher risk of graft loss compared to GRWR≥0.8 graft in LDLT (HR 2.98, 95% CI 1.79-4.88, P<0.001). CONCLUSIONS GRWR<0.8 graft showed inferior graft survival than controls (85.2% vs. 90.1%), especially when ≥2 risk factors for graft loss (among age ≥60 y, MELD score ≥15, or male donor) were present.
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Affiliation(s)
- Deok-Gie Kim
- Department of Surgery, The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, South Korea
| | - Shin Hwang
- Department of Surgery, College of Medicine University of Ulsan, Asan Medical Center, Seoul, South Korea
| | - Jong Man Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - YoungRok Choi
- Department of Surgery, Seoul National University College of Medicine, Seoul, South Korea
| | - Young Kyoung You
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Donglak Choi
- Department of Surgery, Catholic University of Daegu, Daegu, South Korea
| | - Je Ho Ryu
- Department of Surgery, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Pusan, South Korea
| | - Bong-Wan Kim
- Department of Hepato-Biliary-Pancreatic Surgery, Ajou University School of Medicine, Suwon, South Korea
| | - Dong-Sik Kim
- Division of HBP Surgery & Liver Transplantation, Department of Surgery, Korea. University College of Medicine, Seoul, South Korea
| | - Jai Young Cho
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, South Korea
| | - Man Ki Ju
- Departmentof Surgery, Gangnam Severance Hospital, Yonsei University college of Medicine, Seoul, South Korea
| | - Tae-Seok Kim
- Department of surgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, South Korea
| | - Yang Won Nah
- Department of Surgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, South Korea
| | - Jae Geun Lee
- Department of Surgery, The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, South Korea
| | - Myoung Soo Kim
- Department of Surgery, The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, South Korea
| | - Dong Jin Joo
- Department of Surgery, The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, South Korea
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Kim DG, Hwang S, Lee KW, Choi GS, You YK, Ryu JH, Kim BW, Nah YW, Kim DS, Cho JY, Kang KJ, Hong G, Yu HC, Ju MK, Suh SW, Kim KW, Choi D, Jeong J, Choi SJN, Moon JI, Lee JG, Kim MS, Choi D, Joo DJ. Physical Performance Decline During the Early Posttransplantation Period Affects Survival After Living Donor Liver Transplantation. Transplantation 2023; 107:1545-1553. [PMID: 36740738 DOI: 10.1097/tp.0000000000004517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Patient physical performance has been emphasized in liver transplant recipients; however, evidence for living donor liver transplantation (LDLT) patients is lacking. This study investigated the impact of physical performance decline during the early posttransplantation period on survival and risk factors for this decline in LDLT recipients. METHODS From national registry data, 2703 LDLT patients were divided into 2 groups based on the change in their Karnofsky performance status (KPS) between 1 and 6 mo posttransplantation: declined KPS (n = 188) and control (n = 2515). Multivariable analyses were conducted to control for confounders, including posttransplantation complications. RESULTS Estimated 5-y patient survival rates were 91.6% in the declined KPS group and 96.3% in the control group, favoring the latter ( P = 0.003). The survival hazard of KPS decline was significant in a baseline covariates-adjusted Cox model (hazard ratio [HR], 2.60; 95% confidence interval [CI], 1.37-4.95) and an adjusted model accounting for posttransplantation complications (HR, 3.38; 95% CI, 1.70-6.72). In subgroup analyses, KPS decline independently reduced survival in patients without complications (HR, 3.95; 95% CI, 1.67-9.34), and the trend was similar in patients with complications, although significance was marginal (HR, 3.02; 95% CI, 0.98-9.27). We found that only posttransplantation complications, such as rejection, infection, bile duct complication, and vascular complication, were significant risk factors for KPS decline after LDLT. CONCLUSIONS Physical performance decline during the early posttransplantation period independently reduced survival rates, and posttransplantation complications were the only significant risk factors for physical performance decline in LDLT recipients.
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Affiliation(s)
- Deok-Gie Kim
- Department of Surgery, The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, South Korea
| | - Shin Hwang
- Department of Surgery, College of Medicine University of Ulsan, Asan Medical Center, Seoul, South Korea
| | - Kwang-Woong Lee
- Department of Surgery, Seoul National University College of Medicine, Seoul, South Korea
| | - Gyu-Seong Choi
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Young Kyoung You
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Je Ho Ryu
- Department of Surgery, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Pusan, South Korea
| | - Bong-Wan Kim
- Department of Liver Transplantation and Hepatobiliary Surgery, Ajou University School of Medicine, Suwon, South Korea
| | - Yang Won Nah
- Department of Surgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, South Korea
| | - Dong-Sik Kim
- Department of Surgery, Korea University College of Medicine, Seoul, South Korea
| | - Jai Young Cho
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Koo Jeong Kang
- Department of Surgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, South Korea
| | - Geun Hong
- Department of Surgery, EWHA Womans University College of Medicine, Seoul, South Korea
| | - Hee Chul Yu
- Department of Surgery, Jeonbuk National University Medical School, Jeonju, South Korea
| | - Man Ki Ju
- Department of Surgery, Gangnam Severance Hospital, Yonsei University college of Medicine, Seoul, South Korea
| | - Suk-Won Suh
- Department of Surgery, College of Medicine, Chung-Ang University, Seoul, South Korea
| | - Kwan Woo Kim
- Department of Surgery, Dong-A University Hospital, Pusan, South Korea
| | - Dongho Choi
- Department of Surgery, College of Medicine, Hanyang University, Seoul, South Korea
| | - Jaehong Jeong
- Department of Surgery, School of Medicine, Soonchunhyang University, Pusan, South Korea
| | - Soo Jin Na Choi
- Department of Surgery Chonnam National University Medical School and Hospital, Gwangju, Korea
| | - Ju Ik Moon
- Department of Surgery, Konyang University Hospital, Konyang University College of Medicine, Daejeon, Korea
| | - Jae Geun Lee
- Department of Surgery, The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, South Korea
| | - Myoung Soo Kim
- Department of Surgery, The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, South Korea
| | - Donglak Choi
- Department of Surgery, Catholic University of Daegu, Daegu, South Korea
| | - Dong Jin Joo
- Department of Surgery, The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, South Korea
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Bang JB, Oh CK, Kim YS, Kim SH, Yu HC, Kim CD, Ju MK, So BJ, Lee SH, Han SY, Jung CW, Kim JK, Ahn HJ, Lee SH, Jeon JY. Changes in glucose metabolism among recipients with diabetes 1 year after kidney transplant: a multicenter 1-year prospective study. Front Endocrinol (Lausanne) 2023; 14:1197475. [PMID: 37424863 PMCID: PMC10325682 DOI: 10.3389/fendo.2023.1197475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 05/30/2023] [Indexed: 07/11/2023] Open
Abstract
Background Diabetes mellitus is a common and crucial metabolic complication in kidney transplantation. It is necessary to analyze the course of glucose metabolism in patients who already have diabetes after receiving a transplant. In this study, we investigated the changes in glucose metabolism after transplantation, and a detailed analysis was performed on some patients whose glycemic status improved. Methods The multicenter prospective cohort study was conducted between 1 April 2016 and 31 September 2018. Adult patients (aged 20 to 65 years) who received kidney allografts from living or deceased donors were included. Seventy-four subjects with pre-transplant diabetes were followed up for 1 year after kidney transplantation. Diabetes remission was defined as the results of the oral glucose tolerance test performed one year after transplantation and the presence or absence of diabetes medications. After 1-year post-transplant, 74 recipients were divided into the persistent diabetes group (n = 58) and the remission group (n = 16). Multivariable logistic regression was performed to identify clinical factors associated with diabetes remission. Results Of 74 recipients, 16 (21.6%) showed diabetes remission after 1-year post-transplant. The homeostatic model assessment for insulin resistance numerically increased in both groups throughout the first year after transplantation and significantly increased in the persistent diabetes group. The insulinogenic index (IGI30) value significantly increased only in the remission group, and the IGI30 value remained low in the persistent diabetes group. In univariate analysis, younger age, newly diagnosed diabetes before transplantation, low baseline hemoglobin A1c, and high baseline IGI30 were significantly associated with remission of diabetes. After multivariate analysis, only newly diagnosed diabetes before transplantation and IGI30 at baseline were associated with remission of diabetes (34.00 [1.192-969.84], P = 0.039, and 17.625 [1.412-220.001], P = 0.026, respectively). Conclusion In conclusion, some kidney recipients with pre-transplant diabetes have diabetes remission 1 year after transplantation. Our prospective study revealed that preserved insulin secretory function and newly diagnosed diabetes at the time of kidney transplantation were favorable factors for which glucose metabolism did not worsen or improve 1 year after kidney transplantation.
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Affiliation(s)
- Jun Bae Bang
- Department of Surgery, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Chang-Kwon Oh
- Department of Surgery, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Yu Seun Kim
- Department of Transplantation Surgery and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sung Hoon Kim
- Department of Surgery, Yonsei University Wonju College of Medicine, Wonju Severance Christian Hospital, Wonju, Republic of Korea
| | - Hee Chul Yu
- Department of Surgery, Jeonbuk National University College of Medicine, Jeonju, Republic of Korea
| | - Chan-Duck Kim
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Republic of Korea
| | - Man Ki Ju
- Department of Surgery, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Byung Jun So
- Department of Surgery, Wonkwang University Hospital, Iksan, Republic of Korea
| | - Sang Ho Lee
- Department of Internal Medicine, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Sang Youb Han
- Department of Internal Medicine, Inje University Ilsan Paik Hospital, Goyang, Republic of Korea
| | - Cheol Woong Jung
- Department of Surgery, Korea University College of Medicine, Seoul, Republic of Korea
| | - Joong Kyung Kim
- Department of Internal Medicine, Bong Seng Memorial Hospital, Busan, Republic of Korea
| | - Hyung Joon Ahn
- Department of Surgery, Kyung Hee University School of Medicine, Seoul, Republic of Korea
| | - Su Hyung Lee
- Department of Surgery, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Ja Young Jeon
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, Republic of Korea
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Bae SH, Lee JJ, Son SY, Kim HY, Ju MK. A Cross-Sectional Analysis of Health Literacy and Compliance to Treatment in Organ Transplant Recipients. J Clin Med 2023; 12:jcm12030977. [PMID: 36769625 PMCID: PMC9917956 DOI: 10.3390/jcm12030977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/01/2023] [Accepted: 01/24/2023] [Indexed: 02/03/2023] Open
Abstract
This study was conducted to determine the correlations between health literacy, transplant effects, and compliance to treatment in organ transplant recipients and to identify the factors influencing compliance to treatment. The participants (n = 130; males = 66.9%; mean age = 56.4 years) were organ transplant recipients visiting an organ transplantation center in Seoul, South Korea. The regression model explained 32% of the variance in participants' compliance to treatment. Among the health literacy variables, "Scale 3: Actively managing my health" (β = 0.38, p = 0.001) and "Scale 4: Social support for health" (β = 0.25, p = 0.019) had a significant effect on compliance to treatment. In this study, health literacy was identified as a key factor influencing compliance to treatment. Therefore, patients' health literacy should be assessed prior to transplantation to identify potential high-risk patients for treatment nonadherence. In addition, after transplantation surgery, patient-tailored interventions should be developed and provided for self-management that reflects the patient's health literacy level to ultimately enhance patient outcomes.
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Affiliation(s)
- Sun Hyoung Bae
- Research Institute of Nursing Science, College of Nursing, Ajou University, Suwon 100204, Republic of Korea
| | - Jung Jun Lee
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Sun Young Son
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Hee Young Kim
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Man Ki Ju
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
- Correspondence: ; Tel.: +82-2-2019-3893; Fax: +82-2-2019-4827
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Shin S, Ju MK, Lee JJ. Effect of hypothermic oxygenated machine perfusion compared to conventional static cold preservation in liver transplantation: a systematic review and meta-analysis. Korean Journal of Transplantation 2022. [DOI: 10.4285/atw2022.f-1243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Seongwook Shin
- Department of Transplantation Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Man Ki Ju
- Department of Transplantation Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Jun Lee
- Department of Transplantation Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
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Shin SW, Lee JJ, Ju MK. Optimal blood transfusion strategy in ABO-incompatible sold organ transplantation patients: perspective of passenger lymphocyte syndrome. Korean Journal of Transplantation 2022. [DOI: 10.4285/atw2022.f-1643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Seong Wook Shin
- Department of Transplantation Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Jun Lee
- Department of Transplantation Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Man Ki Ju
- Department of Transplantation Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
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Jeon HJ, Koo TY, Ju MK, Chae DW, Choi SJN, Kim MS, Ryu JH, Jeon JC, Ahn C, Yang J. The Korean Organ Transplantation Registry (KOTRY): an overview and summary of the kidney-transplant cohort. Kidney Res Clin Pract 2022; 41:492-507. [PMID: 35919926 PMCID: PMC9346403 DOI: 10.23876/j.krcp.21.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 12/30/2021] [Indexed: 11/23/2022] Open
Abstract
Background As the need for a nationwide organ-transplant registry emerged, a prospective registry, the Korean Organ Transplantation Registry (KOTRY), was initiated in 2014. Here, we present baseline characteristics and outcomes of the kidney-transplant cohort for 2014 through 2019. Methods The KOTRY consists of five organ-transplant cohorts (kidney, liver, lung, heart, and pancreas). Data and samples were prospectively collected from transplant recipients and donors at baseline and follow-up visits; and epidemiological trends, allograft outcomes, and patient outcomes, such as posttransplant complications, comorbidities, and mortality, were analyzed. Results From 2014 to 2019, there were a total of 6,129 registered kidney transplants (64.8% with living donors and 35.2% with deceased donors) with a mean recipient age of 49.4 ± 11.5 years, and 59.7% were male. ABO-incompatible transplants totaled 17.4% of all transplants, and 15.0% of transplants were preemptive. The overall 1- and 5-year patient survival rates were 98.4% and 95.8%, respectively, and the 1- and 5-year graft survival rates were 97.1% and 90.5%, respectively. During a mean follow-up of 3.8 years, biopsy-proven acute rejection episodes occurred in 17.0% of cases. The mean age of donors was 47.3 ± 12.9 years, and 52.6% were male. Among living donors, the largest category of donors was spouses, while, among deceased donors, 31.2% were expanded-criteria donors. The mean serum creatinine concentrations of living donors were 0.78 ± 0.62 mg/dL and 1.09 ± 0.24 mg/dL at baseline and 1 year after kidney transplantation, respectively. Conclusion The KOTRY, a systematic Korean transplant cohort, can serve as a valuable epidemiological database of Korean kidney transplants.
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Affiliation(s)
- Hee Jung Jeon
- Department of Internal Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Tai Yeon Koo
- Department of Internal Medicine, Seongnam Citizens Medical Center, Seongnam, Republic of Korea
| | - Man Ki Ju
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Dong-Wan Chae
- Division of Nephrology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Soo Jin Na Choi
- Department of Surgery, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Myoung Soo Kim
- Department of Transplant Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jung-Hwa Ryu
- Department of Internal Medicine, Ewha Womans University Medical Center, Seoul, Republic of Korea
| | - Jong Cheol Jeon
- Division of Nephrology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Curie Ahn
- Department of Internal Medicine, National Medical Center, Seoul, Republic of Korea
| | - Jaeseok Yang
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
- Correspondence: Jaeseok Yang Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea. E-mail:
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Sim MK, Son SY, Ju MK. Factors influencing the self-management of kidney transplant patients based on self-determination theory: a cross-sectional study. Korean J Transplant 2022; 36:37-44. [PMID: 35769430 PMCID: PMC9235529 DOI: 10.4285/kjt.22.0002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 02/21/2022] [Accepted: 03/03/2022] [Indexed: 11/17/2022] Open
Abstract
Background Self-determination theory is useful for explaining how kidney transplant recipients self-manage their postoperative health, including drug regimens, but few studies have applied this theory to transplant recipients. This study aimed to examine the influence of health professionals’ autonomy support, autonomous motivation and competence on kidney transplant patients’ self-management based on the self-determination theory. Methods This study included 79 kidney transplant patients from one outpatient clinic in a general hospital in Seoul, Korea. Data on the health professionals’ support of patient autonomy and the kidney transplant patients’ autonomous motivation, competence, and self-management were collected from self-report questionnaires. Results The factors that influenced self-management behavior in kidney transplant patients were competence (β=0.377, P=0.001) and autonomous motivation (β=0.293, P=0.006). The explanatory power of these variables was 30.1%. Conclusions This study found that autonomous motivation and competence in kidney transplant patients affected their self-management, indicating that if healthcare professionals enhance patients’ competence and autonomous motivation, their self-management can be improved. The development of intervention programs that assist healthcare professionals in strengthening patients’ autonomous motivation and competence is recommended.
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Affiliation(s)
- Mi Kyung Sim
- Department of Nursing Science, Shinsung University, Dangjin, Korea
| | - Sun Young Son
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Man Ki Ju
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
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11
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Bang JB, Oh C, Kim YS, Kim SH, Yu HC, Kim C, Ju MK, So BJ, Lee SH, Han SY, Jung CW, Kim JK, Ahn HJ, Lee SH, Jeon JY. Safety and metabolic advantages of steroid withdrawal after 6 months posttransplant in de novo kidney transplantation: A 1‐year prospective cohort study. Immun Inflamm Dis 2022; 10:e576. [PMID: 34913271 PMCID: PMC8926512 DOI: 10.1002/iid3.576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 11/09/2021] [Accepted: 11/23/2021] [Indexed: 11/09/2022] Open
Abstract
Introduction This prospective multicenter study aimed at investigating the safety and metabolic advantages of steroid withdrawal (SW) therapy in kidney transplant recipients with tacrolimus–mycophenolate mofetil‐based immunosuppression. Methods We analyzed 179 recipients who received kidney transplantation from March 2016 and September 2018. In 179 recipients, 114 patients maintained an immunosuppressive regimen including steroids (steroid continuation [SC] group). The remaining 65 patients were determined to withdraw steroid therapy after 6 months posttransplant (SW group). Metabolic parameters and graft functions of the two groups were evaluated. Results The estimated glomerular filtration rates at 12 months posttransplant were 67.29 ± 20.29 ml/min/1.73 m2 in SC group and 73.72 ± 17.57 ml/min/1.73 m2 in SW group (p < .001). The acute rejection occurred to four recipients in the SC group (3.5%) and no acute rejection occurred to SW group recipients during the 6–2 months posttransplant period. Oral glucose tolerance tests revealed that recipients in the SW group were more improved in glucose metabolism than the SC group during 6–12 months posttransplant. In addition, cholesterol levels and blood pressure decreased after the withdrawal of steroids in the SW group. Conclusion In conclusion, a 6‐month withdrawal of steroids in recipients with low immunological risk and stable graft function can be safely conducted and result in improvement of metabolic profiles. Stable recipients without biopsy‐proven acute rejection and proteinuria can safely withdraw from steroids out of a maintenance immunosuppressive regimen 6‐months posttransplant. A long‐term follow‐up study is needed to verify our results.
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Affiliation(s)
- Jun B. Bang
- Department of Surgery Ajou University School of Medicine Suwon South Korea
| | - Chang‐Kwon Oh
- Department of Surgery Ajou University School of Medicine Suwon South Korea
| | - Yu S. Kim
- Department of Transplantation Surgery, Research Institute for Transplantation Yonsei University College of Medicine Seoul South Korea
| | - Sung H. Kim
- Department of Surgery, Wonju Severance Christian Hospital Yonsei University Wonju College of Medicine Wonju South Korea
| | - Hee C. Yu
- Department of Surgery Jeonbuk National University College of Medicine Jeonju South Korea
| | - Chan‐Duck Kim
- Department of Internal Medicine, Kyungpook National University Kyungpook National University Hospital Daegu South Korea
| | - Man Ki Ju
- Department of Surgery Yonsei University College of Medicine Seoul South Korea
| | - Byung J. So
- Department of Surgery Wonkwang University Hospital Iksan South Korea
| | - Sang Ho Lee
- Department of Internal Medicine Kyung Hee University Seoul South Korea
| | - Sang Y. Han
- Department of Internal Medicine Inje University Ilsan Paik Hospital Goyang South Korea
| | - Cheol W. Jung
- Department of Surgery Korea University College of Medicine Seoul South Korea
| | - Joong K. Kim
- Department of Internal Medicine Bong Seng Memorial Hospital Busan South Korea
| | - Hyung J. Ahn
- Department of Surgery Kyung Hee University School of Medicine Seoul South Korea
| | - Su H. Lee
- Department of Surgery Ajou University School of Medicine Suwon South Korea
| | - Ja Y. Jeon
- Department of Endocrinology and Metabolism Ajou University School of Medicine Suwon South Korea
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12
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Koh SM, Ju MK, Huh KH, Kim YS, Kim MS. Serum creatinine level at 1-month posttransplant can independently predict long-term graft survival and functional status. Korean Journal of Transplantation 2020; 34:244-248. [PMID: 35770111 PMCID: PMC9187034 DOI: 10.4285/kjt.20.0053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 11/20/2020] [Accepted: 11/20/2020] [Indexed: 12/01/2022] Open
Abstract
Background After the year 2000, kidney transplants with high immunologic risk and deceased donors increased rapidly in Korea. At the same time, the medical community developed special pretransplant and early posttransplantation management protocols. Our team evaluated the effect of early graft stabilization on long-term graft survival and functional status using databases from a high-volume kidney transplantation center. Methods We included 1,895 kidney transplant patients from a total of 1,976 performed between 2005 and 2018. Early graft failure within 1 month (n=9), loss to follow-up (n=2), pediatric recipient or donor (n=37), and combined organ transplantation (n=33) cases were excluded. We grouped the cases at 1-month posttransplantation by serum creatinine quantiles (1.0 mg%, 1.23 mg%, and 1.52 mg%). Results After an average of 95 months of follow-up (maximum 189 months), the high-serum creatinine group (4th quantile) showed significantly poorer graft survival than other groups (1st to 3rd quantile) (P<0.05). In multiple Cox regression analysis, a high serum creatinine level (4th quantile) at 1-month posttransplant is an independent risk factor for graft failure with a hazard ratio of 1.799 (P=0.013). The quantile group by serum creatinine shows a persistent, significant difference of functional graft status (glomerular filtration rate by Modification of Diet in Renal Disease method) among quantile groups beyond ten years posttransplant. Conclusions Serum creatinine level at 1-month posttransplant is a strong independent predictor of graft survival and functional graft status beyond ten years posttransplant.
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Affiliation(s)
- Sung Min Koh
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Man Ki Ju
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Kyu Ha Huh
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Yu Suen Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Myoung Soo Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
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13
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Bang JB, Oh CK, Kim YS, Kim SH, Yu HC, Kim CD, Ju MK, So BJ, Lee SH, Han SY, Jung CW, Kim JK, Lee SH, Jeon JY. Insulin Secretion and Insulin Resistance Trajectories over 1 Year after Kidney Transplantation: A Multicenter Prospective Cohort Study. Endocrinol Metab (Seoul) 2020; 35:820-829. [PMID: 33202516 PMCID: PMC7803593 DOI: 10.3803/enm.2020.743] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 09/22/2020] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND We investigated the changing patterns of insulin secretion and resistance and risk factors contributing to the development of post-transplant diabetes mellitus (PTDM) in kidney recipients under tacrolimus-based immunosuppression regimen during 1 year after transplantation. METHODS This was a multicenter prospective cohort study. Of the 168 subjects enrolled in this study, we analyzed a total 87 kidney transplant recipients without diabetes which was assessed by oral glucose tolerance test before transplantation. We evaluated the incidence of PTDM and followed up the index of insulin secretion (insulinogenic index [IGI]) and resistance (homeostatic model assessment for insulin resistance [HOMA-IR]) at 3, 6, 9 months, and 1 year after transplantation by oral glucose tolerance test and diabetes treatment. We also assessed the risk factors for incident PTDM. RESULTS PTDM developed in 23 of 87 subjects (26.4%) during 1 year after transplantation. More than half of total PTDM (56.5%) occurred in the first 3 months after transplantation. During 1 year after transplantation, insulin resistance (HOMA-IR) was increased in both PTDM and no PTDM group. In no PTDM group, the increase in insulin secretory function to overcome insulin resistance was also observed. However, PTDM group showed no increase in insulin secretion function (IGI). Old age, status of prediabetes and episode of acute rejection were significantly associated with the development of PTDM. CONCLUSION In tacrolimus-based immunosuppressive drugs regimen, impaired insulin secretory function for reduced insulin sensitivity contributed to the development of PTDM than insulin resistance during 1 year after transplantation.
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Affiliation(s)
- Jun Bae Bang
- Department of Surgery, Ajou University School of Medicine, Suwon, Seoul, Korea
| | - Chang-Kwon Oh
- Department of Surgery, Ajou University School of Medicine, Suwon, Seoul, Korea
| | - Yu Seun Kim
- Department of Transplantation Surgery and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Sung Hoon Kim
- Department of Surgery, Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju, Seoul, Korea
| | - Hee Chul Yu
- Department of Surgery, Jeonbuk National University Medical School, Jeonju, Seoul, Korea
| | - Chan-Duck Kim
- Department of Internal Medicine, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Seoul, Korea
| | - Man Ki Ju
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Byung Jun So
- Department of Surgery, Wonkwang University Hospital, Iksan, Seoul, Korea
| | - Sang Ho Lee
- Department of Internal Medicine, Kyung Hee University School of Medicine, Seoul, Korea
| | - Sang Youb Han
- Department of Internal Medicine, Inje University Ilsan Paik Hospital, Goyang, Seoul, Korea
| | - Cheol Woong Jung
- Department of Surgery, Korea University College of Medicine, Seoul, Korea
| | - Joong Kyung Kim
- Department of Internal Medicine, Bong Seng Memorial Hospital, Busan, Korea
| | - Su Hyung Lee
- Department of Surgery, Ajou University School of Medicine, Suwon, Seoul, Korea
- Su Hyung Lee, Department of Surgery, Ajou University School of Medicine, 164 World cup-ro, Yeongtong-gu, Suwon 16499, Korea, Tel: +82-31-219-5760, Fax: +82-31-219-4438, E-mail:
| | - Ja Young Jeon
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, Korea
- Corresponding authors: Ja Young Jeon, Department of Endocrinology and Metabolism, Ajou University School of Medicine, 164 World cup-ro, Yeongtong-gu, Suwon 16499, Korea, Tel: +82-31-219-7459, Fax: +82-31-219-4497, E-mail:
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14
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Bang JB, Oh CK, Ju MK, Kim SJ, Yu HC, Lee SH. Clinical Study of Standard- vs Reduced-Dose Tacrolimus Combined With Generic Mycophenolate Mofetil in De Novo Kidney Transplantation: A Prospective Randomized Trial. Transplant Proc 2020; 52:133-139. [PMID: 31898939 DOI: 10.1016/j.transproceed.2019.11.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 11/10/2019] [Indexed: 11/25/2022]
Abstract
BACKGROUND The lowering of calcineurin inhibitor exposure is possibly considered as the proper strategy to prevent calcineurin inhibitor-induced nephrotoxicity in kidney transplant. This clinical study was designed to compare the efficacy and tolerability of reduced-dose tacrolimus with standard-dose mycophenolate mofetil (MMF) vs standard-dose tacrolimus with reduced-dose MMF. METHODS A prospective, multicenter, open-label, randomized, and parallel-group clinical trial was conducted at 4 transplant centers in Korea. A total sample size was 108, and eligible patients were randomly assigned in a 1:1 ratio to either reduced-dose tacrolimus with standard-dose MMF (the study group) or standard-dose tacrolimus with reduced-dose MMF (the control group) for 6 months in de novo kidney transplant recipients. Graft function, the incidence of efficacy failure, and adverse events were compared. RESULTS The mean estimated glomerular filtration rate at 6 months post-transplantation was 69.83 ± 16.68 mL/min/1.73 m2 in the study group and 69.92 ± 17.55 mL/min/1.73 m2 in the control group (P > .05). The overall incidence of biopsy-proven acute rejection was 3.64% (n = 2) in the study group, compared to 3.77% (n = 2) in the control group (P > .05). There was no graft loss, death, or loss of follow-up in either group. CONCLUSION In conclusion, the results suggest that tacrolimus minimization with standard-dose MMF provides adequate immunosuppression with proper renal function and similar rate of incidence of acute rejection compared with the regimen including standard-dose tacrolimus with reduced-dose MMF.
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Affiliation(s)
- Jun Bae Bang
- Department of Surgery, Ajou University School of Medicine, Suwon, Korea
| | - Chang-Kwon Oh
- Department of Surgery, Ajou University School of Medicine, Suwon, Korea
| | - Man Ki Ju
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Sung Joo Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hee Chul Yu
- Department of Surgery, Jeonbuk National University College of Medicine, Jeonju, Korea
| | - Su Hyung Lee
- Department of Surgery, Ajou University School of Medicine, Suwon, Korea.
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15
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Dong H, Fu RF, Ju MK, Sun T, Liu XF, Xue F, Chi Y, Yang RC, Zhang L. [Gene mutation spectrum and clinical characteristics analysis of 178 patients with essential thrombocytosis]. Zhonghua Xue Ye Xue Za Zhi 2019; 40:837-842. [PMID: 31775483 PMCID: PMC7364978 DOI: 10.3760/cma.j.issn.0253-2727.2019.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
目的 分析原发性血小板增多症(ET)患者基因突变谱及临床特征。 方法 对2009年2月1日至2018年11月1日收治的178例初诊ET患者进行回顾性分析。 结果 全部178例患者中,男89例,女89例,中位初诊年龄为49.5(3~86)岁。JAK2V617F基因突变频率为16.45%(1.67%~43.90%),CALR基因突变频率为40.00%(10.00%~49.15%),MPL基因突变频率为25.10%(25.00%~40.00%)。与CALR基因突变的患者相比,JAK2V617F基因突变患者具有较高的发病年龄(P=0.035)、初诊白细胞计数(P=0.040)、初诊血红蛋白浓度(P=0.001)和较低的初诊血小板计数(P=0.002)。47例(27.01%)患者诊断ET前发生血栓事件,3例(1.72%)诊断ET后发生血栓事件。多因素分析结果显示,年龄>60岁(P=0.013,OR=4.595,95%CI1.382~15.282)、心血管危险因素(P<0.001,OR=8.873,95%CI2.921~26.955)为血栓事件的危险因素,CALR基因突变(P=0.032,OR=0.126,95%CI0.019~0.838)为血栓事件的保护性因素。年龄>60岁(P=0.042,OR=4.045,95%CI1.053~15.534)是影响ET患者总生存时间的危险因素。年龄≤60岁、年龄>60岁患者的OS时间分别为(115.231±1.899)、(83.291±4.991)个月(χ2=6.406,P=0.011)。 结论 心血管危险因素、年龄>60岁为ET患者血栓事件的危险因素,CALR基因突变为血栓事件的保护性因素。年龄>60岁是影响ET患者总生存的危险因素。
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Affiliation(s)
- H Dong
- The State Key Laboratory of Experimental Hematology, Institute of Hematology and Hospital of Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College.Tianjin Key Laboratory of Gene Therapy for Blood diseases, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Tianjin 300020, China
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16
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Wang SX, Nie YB, Ju MK, Sun T, Li HY, Zhang DL, Zhang L, Yang RC. [The value of platelet count in predicting the efficacy of rituximab treatment in adult patients with chronic primary immune thrombocytopenia]. Zhonghua Xue Ye Xue Za Zhi 2019; 39:573-578. [PMID: 30122017 PMCID: PMC7342221 DOI: 10.3760/cma.j.issn.0253-2727.2018.07.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
目的 探讨血小板计数水平在成人慢性原发免疫性血小板减少症(ITP)患者利妥昔单抗疗效预测中的价值。 方法 回顾性分析2011年1月1日至2014年12月31日期间接受利妥昔单抗治疗(100 mg每周1次,连用4次)慢性ITP患者的临床资料,计算利妥昔单抗治疗后不同随访时间截点血小板计数预测疗效的敏感性、特异性和阳性预测值、阴性预测值,并通过ROC曲线下面积得出最佳截断点。 结果 103例患者纳入研究,男46例,女57例,中位年龄30(18~67)岁。首剂利妥昔单抗后第1、5、7天,成功组(治疗后PLT≥50×109/L且未接受其他药物治疗)与无效组(治疗后PLT<50×109/L)中位血小板计数差异均无统计学意义(P>0.05);利妥昔单抗治疗后第14天,成功组中位血小板计数高于无效组[41(8~384)×109/L对23(0~106)×109/L,P=0.003];在随后的各随访截点,成功组中位血小板计数进一步回升并维持于正常水平,无效组中位血小板计数均低于正常水平。以ROC曲线获得的预测治疗反应的优化界限值血小板计数50×109/L为基础,首剂妥昔单抗治疗后第14、30、60天血小板计数能够组成一个预后评估体系。 结论 利妥昔单抗治疗后第14、30、60天血小板计数能够组成一个疗效预测评估体系,有助于随访和制定治疗计划。
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Affiliation(s)
- S X Wang
- Institute of Hematology & Blood Disease Hospital, CAMS & PUMC, Tianjin 300020, China
| | | | | | | | | | | | | | - R C Yang
- Institute of Hematology & Blood Disease Hospital, CAMS & PUMC, Tianjin 300020, China
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17
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Kang IC, Kim IK, Son S, Ju MK. Impact of Early Hospital Readmissions After Kidney Transplantation on Graft Function. Transplant Proc 2018; 50:2359-2362. [PMID: 30316358 DOI: 10.1016/j.transproceed.2017.12.062] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Accepted: 12/18/2017] [Indexed: 12/31/2022]
Abstract
Early hospital readmissions are common after kidney transplantation. This single-center retrospective study investigated the relationship between early hospital readmissions and clinical outcomes. All adult patients receiving a kidney transplant at this center between March 2009 and June 2015 were included. The early hospital readmissions within the first 30 days were numbered, and the diagnosis was ascertained. The patients were divided into None and Readmission groups. Clinical outcomes and patient- and death-censored graft survival were compared. Among the 103 patients included in the study, 32 (31.1%) had 1 or more readmissions within 30 days. Surgical complications, electrolyte imbalance, and acute rejection were common causes of readmission. No differences were observed in baseline characteristics between the two groups. Patients with early readmissions exhibited low renal function at 3, 6, and 12 months postoperatively (P = .002, .020, and .013, respectively). No difference in graft function was found 12 months after transplantation between the None and Readmission groups. Five-year graft and patient survival also showed no difference between the two groups (P = .424 and .442, respectively). In conclusion, early readmission after kidney transplantation affected lower graft function until 1 year after kidney transplantation. However, the long-term effect on graft function is limited in this study.
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Affiliation(s)
- I-C Kang
- Division of Transplantation, Critical Care and Trauma Surgery, Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - I-K Kim
- Division of Transplantation, Critical Care and Trauma Surgery, Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - S Son
- Division of Transplantation, Critical Care and Trauma Surgery, Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - M K Ju
- Division of Transplantation, Critical Care and Trauma Surgery, Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
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18
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Kim IK, Na SH, Park JS, Ju MK, Shin CS. Inadequate Sedation Leads to Unexpected Postoperative Wound Evisceration during a Bedside Endoscopy. Acute Crit Care 2018; 33:61-63. [PMID: 31723863 PMCID: PMC6849004 DOI: 10.4266/acc.2017.00297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 07/15/2017] [Accepted: 10/11/2017] [Indexed: 11/30/2022] Open
Affiliation(s)
- Im-Kyung Kim
- Department of Surgery, Ajou University School of Medicine, Suwon, Korea
| | - Se Hee Na
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Joon Seong Park
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Man Ki Ju
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Cheung Soo Shin
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
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19
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Kim DG, Lee JY, Jung YB, Song SH, Lee JG, Han DH, Joo DJ, Ju MK, Choi GH, Choi JS, Kim MS, Kim SI. Clinical significance of lactate clearance for the development of early allograft dysfunction and short-term prognosis in deceased donor liver transplantation. Clin Transplant 2017; 31. [PMID: 29032588 DOI: 10.1111/ctr.13136] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/08/2017] [Indexed: 01/01/2023]
Abstract
This retrospective study evaluated lactate clearance (LC), measured at 6, 12, 18, and 24 hours after reperfusion, as a predictor of early allograft dysfunction (EAD) and short-term outcomes in patients receiving deceased donor liver transplantation. Of 181 transplant recipients, 44 (24.3%) developed EAD and had lower LCs than those who did not develop EAD. A receiver operating characteristic analysis showed that LC determined at 6 hours showed the highest area under curve value of 0.828 (95% confidence interval [CI]: 0.755-0.990) for predicting the development of EAD at a cutoff value of 25.8% with 76.7% sensitivity and 77.9% specificity. LC values that fell below the cutoff values were significantly associated with EAD in a multivariate analysis, with values at 6 hours having the highest adjusted odds ratio (11.891, 95% CI: 4.469-31.639). In-hospital and 6 month mortalities were higher in patients with LC values below the cutoffs compared with those above the cutoff values at each time point. Thus, LC calculated shortly after reperfusion of an allograft is significantly discriminative for the development of EAD and is associated with short-term prognosis after deceased donor liver transplantation.
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Affiliation(s)
- Deok Gie Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Jee Youn Lee
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Yoon Bin Jung
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Seung Hwan Song
- Department of Surgery, Ewha Woman's University College of Medicine, Seoul, Korea
| | - Jae Geun Lee
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.,The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Dai Hoon Han
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Dong Jin Joo
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.,The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Man Ki Ju
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Gi Hong Choi
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Jin Sub Choi
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Myoung Soo Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.,The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Soon Il Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.,The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
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Jeong HY, Kim IK, Choi SH, Lee C, Ju MK. Whole Body Bone Scan for Detecting Missed Bone Injuries in Multiple Trauma Patients. JACS 2017. [DOI: 10.17479/jacs.2017.7.2.56] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- Hong Yoon Jeong
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Im-kyung Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Seo Hee Choi
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Changro Lee
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Man Ki Ju
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
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Lee H, Kim IK, Ju MK. Which patients with intestinal obstruction need surgery? The delta neutrophil index as an early predictive marker. Ann Surg Treat Res 2017; 93:272-276. [PMID: 29184881 PMCID: PMC5694719 DOI: 10.4174/astr.2017.93.5.272] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 04/24/2017] [Accepted: 04/28/2017] [Indexed: 12/22/2022] Open
Abstract
Purpose Predicting the need for surgical intervention among patients with intestinal obstruction is challenging. The delta neutrophil index (DNI) has been suggested as a useful marker of immature granulocytes, which indicate an infection or sepsis. In this study, we evaluated the impact of the DNI as an early predictor of operation among patients with intestinal obstruction. Methods A total of 171 patients who were diagnosed with postoperative intestinal obstruction were enrolled in this study. Medical records, including data for the initial CRP level, WBC count, and DNI were reviewed. Receiver operating characteristic (ROC) curves were generated to clarify the optimal DNI cutoff values for predicting an operation. Results Among the 171 patients, 38 (22.2%) needed surgical intervention. The areas under the initial CRP, WBC, and DNI ROC curves were 0.460, 0.449, and 0.543, respectively. The optimal cutoff value for predicting further surgical intervention according to the initial DNI level was 4.3%. The accuracy of the cutoff value was 74.9%, the sensitivity was 23.7%, and the specificity was 89.5% (positive predictive value, 23.7%; negative predictive value, 89.5%). In the multivariate analysis, initial DNI levels ≥ 4.3% were significantly associated with surgical intervention (odd ratio, 3.092; 95% confidence interval, 1.072–8.918; P = 0.037). Conclusion The initial DNI level in patients with intestinal obstruction may be a useful predictor for determining the need for surgical intervention.
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Affiliation(s)
- Haemin Lee
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Im-Kyung Kim
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Man Ki Ju
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
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Huh KH, Lee JG, Ha J, Oh CK, Ju MK, Kim CD, Cho HR, Jung CW, Lim BJ, Kim YS. De novo low-dose sirolimus versus mycophenolate mofetil in combination with extended-release tacrolimus in kidney transplant recipients: a multicentre, open-label, randomized, controlled, non-inferiority trial. Nephrol Dial Transplant 2017; 32:1415-1424. [DOI: 10.1093/ndt/gfx093] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 04/07/2017] [Indexed: 12/20/2022] Open
Affiliation(s)
- Kyu Ha Huh
- Department of Transplantation Surgery, Severance Hospital, Yonsei University Health System, Seoul, Republic of Korea
- Department of Surgery, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jae Geun Lee
- Department of Transplantation Surgery, Severance Hospital, Yonsei University Health System, Seoul, Republic of Korea
| | - Jongwon Ha
- Department of Surgery, Seoul National University Hospital, Seoul, Republic of Korea
| | - Chang-Kwon Oh
- Department of Surgery, Ajou University Hospital, Suwon, Republic of Korea
| | - Man Ki Ju
- Department of Surgery, Yonsei University College of Medicine, Seoul, Republic of Korea
- Department of Surgery, Gangnam Severance Hospital, Yonsei University Health System, Seoul, Republic of Korea
| | - Chan-Duck Kim
- Department of Internal Medicine (Nephrology), Kyungpook National University Hospital, Daegu, Republic of Korea
| | - Hong Rae Cho
- Department of Surgery, Ulsan University Hospital, Ulsan, Republic of Korea
| | - Cheol Woong Jung
- Department of Surgery, Korea University Anam Hospital, Seoul, Republic of Korea
| | - Beom Jin Lim
- Department of Pathology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yu Seun Kim
- Department of Transplantation Surgery, Severance Hospital, Yonsei University Health System, Seoul, Republic of Korea
- Department of Surgery, Yonsei University College of Medicine, Seoul, Republic of Korea
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Kim IK, Choi SH, Son S, Ju MK. Early Weight Gain After Transplantation Can Cause Adverse Effect on Transplant Kidney Function. Transplant Proc 2016; 48:893-6. [PMID: 27234761 DOI: 10.1016/j.transproceed.2015.10.064] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 09/17/2015] [Accepted: 10/03/2015] [Indexed: 11/26/2022]
Abstract
BACKGROUND The outcomes of kidney transplant recipients with increased body mass index (BMI) remain controversial. We studied the relationship between changes in BMI and kidney transplant function, especially during the first year after transplantation. METHODS We performed an observational cohort study of all kidney transplant recipients at our center from March 2009 to June 2014 to determine whether changes in BMI were associated with kidney transplant function, as measured by estimated glomerular filtration rate (eGFR). Recipient BMI and eGFR were calculated pre-transplant and at 1, 3, 6, 9, and 12 postoperative months (POM) after transplantation. The correlation between changes in BMI and eGFR was then evaluated. RESULTS Eighty-one patients were studied. There was a strong negative correlation between changes in BMI and eGFR from pre-transplant to POM 1 (correlation coefficient, -0.406; P < .0001) and from POM 1 to POM 3 (r = -0.324, P = .004). CONCLUSIONS We found that increased BMI caused a significant decline in renal function as measured by eGFR, especially in the initial 3 months after kidney transplantation.
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Affiliation(s)
- I K Kim
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - S H Choi
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - S Son
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - M K Ju
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
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Kim IK, Park JS, Ju MK. Impact of Pre-Transplant Bacterial Infections on Post-Operative Outcomes in Patients after Liver Transplantation. Surg Infect (Larchmt) 2016; 18:170-175. [PMID: 27929923 DOI: 10.1089/sur.2016.109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND In contrast to studies evaluating the negative effect of bacterial infections on clinical outcomes after liver transplantation, there is little evidence with regard to pre-transplant bacterial infections. We aimed to investigate the impact of pre-transplant bacterial infections on post-transplant outcomes in patients after liver transplantation. PATIENTS AND METHODS We retrospectively analyzed clinical data from 33 consecutive patients who underwent primary liver transplantations. Patients were divided into two groups based on the occurrence of a bacterial infection within the 30 days before transplantation. RESULTS Of the 33 patients, 23 patients did not have pre-transplant bacterial infections, while 10 patients did have pre-transplant bacterial infections. Pre-transplant bacterial infections were urinary tract infections (n = 4), spontaneous bacterial peritonitis (n = 3), and one each of pneumonia, bacteremia, and cellulitis. There were no differences in clinical characteristics between the two groups. Post-operative clinical outcomes, including post-operative bacterial infection, intensive-care unit re-admission, 30-day re-hospitalization, and 90-day mortality rate were not significantly different between the two groups. The two-year overall survival rate was 76.7% in patients with pre-transplant infections and 80.0% in those without pre-transplant infections. CONCLUSIONS Patients with pre-transplant bacterial infections did not have inferior clinical outcomes, compared with those without pre-transplant bacterial infections.
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Affiliation(s)
- Im-Kyung Kim
- Department of Surgery, Gangnam Severance Hospital , Yonsei University College of Medicine, Seoul, Korea
| | - Joon Seong Park
- Department of Surgery, Gangnam Severance Hospital , Yonsei University College of Medicine, Seoul, Korea
| | - Man Ki Ju
- Department of Surgery, Gangnam Severance Hospital , Yonsei University College of Medicine, Seoul, Korea
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Abstract
BACKGROUND The purpose of this study was to understand the adjustment process after kidney transplantation. METHODS The research method followed grounded theory methodology of Strauss and Corbin. Twelve recipients after kidney transplantation were selected. The data were collected through in-depth, face-to-face interviews or e-mailing or phone-interviews and analyzed by means of a constant comparative method. RESULTS Through the category analysis, "struggling for independence" was verified as the central phenomenon of recipients, and the causal conditions that influence this phenomenon were "unpredictable physical status," "the difficulty of self-care," "apathy of families and friends," and "emotional instability." The contextual conditions were "social prejudice" and "difficulty in returning to society," and the intervening conditions were "significant others support" and "religious support." The action/interaction strategies were "inner reviewing strategies," "interactive strategies," and "active self-maintaining strategies." From this observation, "establishing guidelines for living" was derived as the result. CONCLUSIONS The results of this study provided deep understanding on the adjustment process after kidney transplantation, and this would help to provide a frame for individualized medical and nursing intervention strategies in assisting the psychosocial adaptation of the kidney transplantation recipient.
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Affiliation(s)
- M K Ju
- Department of Surgery, Gangnam Severance Hospital, Yonsei University, Seoul, Korea
| | - S Son
- Department of Surgery, Gangnam Severance Hospital, Yonsei University, Seoul, Korea
| | - S Kim
- Mo-Im Kim Nursing Research Institute, College of Nursing, Yonsei University, Seoul, Korea.
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Lee JG, Lee J, Lee JJ, Song SH, Ju MK, Choi GH, Kim MS, Choi JS, Kim SI, Joo DJ. Efficacy of rabbit anti-thymocyte globulin for steroid-resistant acute rejection after liver transplantation. Medicine (Baltimore) 2016; 95:e3711. [PMID: 27281070 PMCID: PMC4907648 DOI: 10.1097/md.0000000000003711] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Acute cellular rejection after liver transplantation (LT) can be treated with steroid pulse therapy, but there is no ideal treatment for steroid-resistant acute rejection (SRAR). We aimed to determine the feasibility and potential complications of rabbit anti-thymocyte globulin (rATG) application to treat SRAR in liver transplant recipients. We retrospectively reviewed medical records of 429 recipients who underwent LT at Severance Hospital between January 2010 and March 2015. We compared clinical features and graft survival between patients with steroid-sensitive acute rejection (SSAR; n = 23) and SRAR (n = 11). We also analyzed complications and changes in laboratory findings after 2.5 mg/kg rATG treatment in patients with SRAR for 6 to 10 days. There were no significant differences in gender, age, model for end-stage liver disease score, Child-Turcotte-Pugh score, or original liver diseases between patients with SSAR and SRAR, although deceased donors were more frequently associated with the SRAR group (P = 0.004). All SRAR patients responded positively to rATG treatment; after treatment, the patients' median AST levels decreased from 138 to 63 IU/L, and their median ALT levels dropped from 327 to 70 IU/L 1 day after rATG treatment (P = 0.022 and 0.017, respectively). Median aspartate aminotransferase (AST), alanine aminotransferase (ALT), and total bilirubin levels significantly decreased 1 month post-treatment (P = 0.038, 0.004, and 0.041, respectively). Median survival after LT was 23 months, and median survival after rATG was 22 months in patients with SRAR. Adverse effects included hepatitis C virus (HCV) reactivation, fungemia, and cytomegalovirus (CMV) infection. Nine SRAR patients survived with healthy liver function, 1 died from a traffic accident during follow-up, and 1 died from graft-versus-host disease and fungemia. Administration of rATG is an effective therapeutic option for SRAR with acceptable complications in liver transplant recipients. However, the occurrence of HCV reactivation and CMV infection in LT patients should be monitored after rATG treatment in these patients.
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Affiliation(s)
- Jae Geun Lee
- Department of Surgery
- The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul
| | | | - Jung Jun Lee
- Department of Surgery, CHA Bundang Medical Center, CHA University, Bundang, Korea
| | | | | | | | - Myoung Soo Kim
- Department of Surgery
- The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul
| | | | - Soon Il Kim
- Department of Surgery
- The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul
| | - Dong Jin Joo
- Department of Surgery
- The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul
- ∗Correspondence: Dong Jin Joo, Department of Surgery, Yonsei University College of Medicine, Yonsei-ro, Seodaemun-gu, Seoul, Korea (e-mail: )
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Abstract
To reduce hepatitis B virus reinfection after liver transplantation (LT), patients often receive antihepatitis B immunoglobulin (HBIG) alone or combined with antiviral nucleoside/nucleotide analogs (NUCs); however, proximal renal tubular dysfunction (RTD) that was induced by NUCs in liver recipients was rarely reported. Here, we analyzed RTD and renal impairment (RI) following adefovir (ADV) and lamivudine (LAM) treatment in liver recipients. We retrospectively reviewed medical records of patients treated with HBIG alone (group 1, n = 42) or combined with ADV or LAM (group 2, n = 21) after LT. We compared RTD and RI incidence during the 12 months after LT. An RTD diagnosis required manifestation of at least 3 of the following features: hypophosphatemia, RI, hypouricemia, proteinuria, or glucosuria. No significant differences were observed regarding sex, age, donor type, model of end-stage liver score, and estimated glomerular filtration rate at pre-LT between the 2 groups. Hepatitis B virus recurrence within 12 months was 4.8% in both groups (P = 1.000); however, the RTD incidence was 0% in group 1 and 19.0% in group 2 (P = 0.010). RI occurrence did not differ between the groups. The only risk factor for RI was HBIG administration combined with both LAM and ADV (odds ratio 11.27, 95% confidence interval 1.13-112.07, P = 0.039, vs HBIG alone). RTD occurred more frequently in patients treated with HBIG combined with LAM or ADV compared with HBIG alone. Thus, LAM or ADV therapy can induce RTD after LT, and when administered, liver recipients should be monitored.
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Affiliation(s)
- Jae Geun Lee
- From the Yonsei University College of Medicine, Seoul (JGL, JL, SHS, MKJ, GHC, MSK, JSC, SIK, DJJ), Department of Surgery, CHA Bundang Medical Center, CHA University, Bundang (JJL); and The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea (JGL, MSK, SIK, DJJ)
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Kim IK, Ju MK. Management of Opportunistic Infections after Organ Transplantation. Korean J Transplant 2015. [DOI: 10.4285/jkstn.2015.29.1.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Im-kyung Kim
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Man Ki Ju
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
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Song SH, Kim MS, Lee JJ, Ju MK, Lee JG, Lee J, Choi JS, Choi GH, Kim SI, Joo DJ. Effect of donor-specific antibodies and panel reactive antibodies in living donor liver transplant recipients. Ann Surg Treat Res 2015; 88:100-5. [PMID: 25692121 PMCID: PMC4325653 DOI: 10.4174/astr.2015.88.2.100] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Revised: 08/05/2014] [Accepted: 08/14/2014] [Indexed: 11/30/2022] Open
Abstract
Purpose Preformed circulating donor-specific antibodies (DSAs) immunologically challenge vascular endothelium and the bile duct. However, the liver is an immune-tolerant organ and can avoid immunological challenges. This study was undertaken to analyze the effects of DSAs after adult living donor liver transplantation (LDLT). Methods We retrospectively reviewed 219 LDLT patients' records treated at our center. Results Of the 219 patients, 32 (14.6%) were DSA (+) and 187 (85.4%) were DSA (-). Class I DSAs were present in 18 patients, class II in seven patients, and both in seven patients. Seven patients (3.2%) showed DSA to HLA-A, four (1.8%) to HLA-B, seven (3.2%) to HLA-DR, and 14 (6.4%) to two or more HLAs. More DSAs were observed in female recipients than male recipients in the DSA (+) group. The DSA (+) group showed significantly higher levels of class I and II panel reactive antibody (PRA) than did the DSA (-) group. No significant intergroup differences were found between incidences of primary nonfunction, acute rejection, vascular complication, or biliary complication. There were no significant differences in graft survival rates between the two groups. However, the recipients with multiple DSAs tended to have more acute rejection episodes and events of biliary stricture and lower graft survival rates than did patients in the DSA (-) group. Conclusion In LDLT, the presence of multiple DSAs and high PRA seemed to be associated with poor graft outcomes, although our results did not reach statistical significance. Large cohort studies are necessary to clarify the impact of DSA and PRA in LDLT.
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Affiliation(s)
- Seung Hwan Song
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Myoung Soo Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea. ; The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Jun Lee
- Department of Surgery, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Man Ki Ju
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea. ; The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Jae Geun Lee
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea. ; The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Juhan Lee
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea. ; The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Jin Sub Choi
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea. ; The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Gi Hong Choi
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea. ; The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Soon Il Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea. ; The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Dong Jin Joo
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea. ; The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
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Ju MK, Jeong JH, Lee JI, Kim YS, Kim MS. Proliferation and functional assessment of pseudo-islets with the use of pancreatic endocrine cells. Transplant Proc 2014; 45:1885-8. [PMID: 23769063 DOI: 10.1016/j.transproceed.2012.12.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Accepted: 12/31/2012] [Indexed: 11/26/2022]
Abstract
Many obstacles beset islet transplantation, particularly insufficient tissue mass. Previously, we reported production of pseudo-islets. In addition, there have been reports in which coculture with pancreatic islet and bone marrow mesenchymal stem cells (BMSCs) demonstrated positive effects on pancreatic islet function. The purpose of this study was to perform morphologic and functional evaluations of pancreatic pseudo-islets cocultured with BMSCs. Pancreatic endocrine cells (PECs) were collected with a previously reported method; bone marrow was aspirated from the rat femur. Subsequently, PECs and BMSCs cocultured at high density on low-cell-binding culture dishes kept suspended by shaking. The functionality and characteristics of the mixed cell complexes were evaluated by glucose challenge, insulin enzyme-linked immunosorbent assay, reverse-transcription polymerase chain reaction, and immunohistochemistry. Through expansion for 2 weeks in continuous culture passages, ∼1 million PECs were recovered after aggregation. They presented spherical shapes and sizes similar to naïve islets, according to phase-contrast microscopy. The spheroid aggregates of pancreatic islet cells and BMSCs showed fortified functions and maintained viability. In conclusion, PECs served as a cell source for pseudo-islets, which were both morphologically and genetically similar to naïve islets. We also suggest a manufacturing method for mixed cellular complexes from 2 different origins that can improve secretion ability and cell differentiation.
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Affiliation(s)
- M K Ju
- Research Institute for Transplantation, Yonsei University Health System, Seoul, South Korea; Department of Transplantation Surgery, Yonsei University Health System, Seoul, South Korea
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Choi SH, Choi GH, Kim SU, Park JY, Joo DJ, Ju MK, Kim MS, Choi JS, Han KH, Kim SI. Role of surgical resection for multiple hepatocellular carcinomas. World J Gastroenterol 2013; 19:366-74. [PMID: 23372359 PMCID: PMC3554821 DOI: 10.3748/wjg.v19.i3.366] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2012] [Revised: 12/03/2012] [Accepted: 12/15/2012] [Indexed: 02/06/2023] Open
Abstract
AIM: To clarify the role of surgical resection for multiple hepatocellular carcinomas (HCCs) compared to transarterial chemoembolization (TACE) and liver transplantation (LT).
METHODS: Among the HCC patients who were managed at Yonsei University Health System between January 2003 and December 2008, 160 patients who met the following criteria were retrospectively enrolled: (1) two or three radiologically diagnosed HCCs; (2) no radiologic vascular invasion; (3) Child-Pugh class A; (4) main tumor smaller than 5 cm in diameter; and (5) platelet count greater than 50 000/mm3. Long-term outcomes were compared among the following three treatment modalities: surgical resection or combined radiofrequency ablation (RFA) (n = 36), TACE (n = 107), and LT (n = 17). The survival curves were computed using the Kaplan-Meier method and compared with a log-rank test. To identify the patients who gained a survival benefit from surgical resection, we also investigated prognostic factors for survival following surgical resection. Multivariate analyses of the prognostic factors for survival were performed using the Cox proportional hazard model.
RESULTS: The overall survival (OS) rate was significantly higher in the surgical resection group than in the TACE group (48.1% vs 28.9% at 5 years, P < 0.005). LT had the best OS rate, which was better than that of the surgical resection group, although the difference was not statistically significant (80.2% vs 48.1% at 5 years, P = 0.447). The disease-free survival rates were also significantly higher in the LT group than in the surgical resection group (88.2% vs 11.2% at 5 years, P < 0.001). Liver cirrhosis was the only significant prognostic factor for poor OS after surgical resection. Clinical liver cirrhosis rates were 55.6% (20/36) in the resection group and 93.5% (100/107) in the TACE group. There were 19 major and 17 minor resections. En bloc resection was performed in 23 patients, multi-site resection was performed in 5 patients, and combined resection with RFA was performed in 8 patients. In the TACE group, only 34 patients (31.8%) were recorded as having complete remission after primary TACE. Seventy-two patients (67.3%) were retreated with repeated TACE combined with other therapies. In patients who underwent surgical resection, the 16 patients who did not have cirrhosis had higher 5-year OS and disease-free survival rates than the 20 patients who had cirrhosis (80.8% vs 25.5% 5-year OS rate, P = 0.006; 22.2% vs 0% 5-year disease-free survival rate, P = 0.048). Surgical resection in the 20 patients who had cirrhosis did not provide any survival benefit when compared with TACE (25.5% vs 24.7% 5-year OS rate, P = 0.225). Twenty-nine of the 36 patients who underwent surgical resection experienced recurrence. Of the patients with cirrhosis, 80% (16/20) were within the Milan criteria at the time of recurrence after resection.
CONCLUSION: Among patients with two or three HCCs, no radiologic vascular invasion, and tumor diameters ≤ 5 cm, surgical resection is recommended only in those without cirrhosis.
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Joo DJ, Kim BS, Kim SJ, Huh KH, Kim MS, Ju MK, Kim SI, Kim YS. Risk factors and characteristics of post-transplant tuberculosis in an endemic area. Ann Transplant 2013; 18:163-73. [DOI: 10.12659/aot.883882] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Dong Jin Joo
- Departments of Surgery, Severance Hospital, Yonsei University Health System, Seoul, Korea and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Beom Seok Kim
- Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea and Internal Medicine, Severance Hospital, Yonsei University Health System, Seoul, Korea
| | - Soo Jin Kim
- Department of Surgery, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Kyu Ha Huh
- Departments of Surgery, Severance Hospital, Yonsei University Health System, Seoul, Korea and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Myoung Soo Kim
- Departments of Surgery, Severance Hospital, Yonsei University Health System, Seoul, Korea and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Man Ki Ju
- Departments of Surgery, Severance Hospital, Yonsei University Health System, Seoul, Korea and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Soon Il Kim
- Departments of Surgery, Severance Hospital, Yonsei University Health System, Seoul, Korea and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Yu Seun Kim
- Departments of Surgery, Severance Hospital, Yonsei University Health System, Seoul, Korea and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
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Kim YS, Kim SI, Kim MS, Huh KH, Ju MK, Joo DJ, Kim HJ, Jeon KO, Kim HJ, Park K. Evaluation of Independent Risk Factors Affecting Renal Allograft Survival by Transplant Era. Korean J Transplant 2012. [DOI: 10.4285/jkstn.2012.26.3.178] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Yu Seun Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Soon Il Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Myoung Soo Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Kyu Ha Huh
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Man Ki Ju
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Dong Jin Joo
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Hae-Jin Kim
- Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Kyung Ock Jeon
- Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Hyun Jung Kim
- Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Kiil Park
- Department of Surgery, Bundang CHA Hospital, CHA University College of Medicine, Seongnam, Korea
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Huh KH, Kim MS, Kim HJ, Joo DJ, Kim BS, Ju MK, Kim SI, Kim YS. Renal transplantation in sensitized recipients with positive luminex and negative CDC (complement-dependent cytotoxicity) crossmatches. Transpl Int 2012; 25:1131-7. [DOI: 10.1111/j.1432-2277.2012.01543.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Joo DJ, Ju MK, Huh KH, Kim MS, Choi GH, Choi JS, Jeon KO, Kim SI. Does lymphocyte cross-matching predict acute rejection and graft survival in liver transplantation? Transplant Proc 2012; 44:418-20. [PMID: 22410032 DOI: 10.1016/j.transproceed.2012.01.071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
INTRODUCTION The role of lymphocyte cross-matches (LCM) remains controversial in the liver transplant field. The aim of this study was to correlate the risk for acute rejection episodes and graft survival in liver transplantation with pretransplant LCM results. PATIENTS AND METHODS We enrolled 184 adult liver transplantation patients, excluding pediatric and second grafts. The 129 living donor and 55 deceased donor liver transplantations were divided into 2 groups: LCM (+); (n=20) and LCM (-); (n=164). RESULTS There were no differences in the demographic features, such as gender and recipient age, original disease, Model for End-Stage Liver Disease score, donor type, number of human leukocyte antigen mismatches, and cold ischemia times. There were no hyperacute rejection episodes in the LCM (+) group. Also, posttransplant complications such as acute rejection episode, biliary complication, or hepatic artery thrombosis were not different. Acute rejection episodes occurred in 5.0% of the LCM (+) group and 15.2% of the LCM (-) group (P=.317). Bile duct complications after transplantation arose in 20.0% of the LCM (+) group and in 32.9% of the LCM (-) group (P=.312). The 2 groups showed no difference in graft survival rate analyzed by the Kaplan-Meier method according to LCM results. CONCLUSION Pretransplant LCM results were not associated with overall graft survival or acute rejection episodes in this study.
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Affiliation(s)
- D J Joo
- Department of Surgery, The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
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Abstract
BACKGROUND We sought to evaluate total and segmental liver regeneration by comparing preoperative computed tomographic (CT) volumetry and CT volumetry on postoperative day (POD) 7 after a right hepatectomy, in patients with various status and surgical indications. METHOD We included 36 patients who underwent right lobectomy for living donor liver transplantation (healthy group), and 29 for hepatocellular carcinoma treatment (disease group). All of the disease group patients were Child-Turcotte-Pugh (CTP) class A. The regeneration of lateral, medial segment and total remnant liver volumes were assessed on POD 7 using a CT-based program. Total volumes and segmental volumes were measured for total liver, future liver remnant (FLR), and liver remnant. We calculated total and segmental early regeneration indexes, defined as [(VLR-VFLR)/VFLR]×100, where VLR is volume of the liver remnant and VFLR is volume of the FLR. RESULT The VLR at POD 7 showed a 72.9% increase in volume among the healthy versus 55% in the disease group, (P=.012) In the disease group, segmental volume and regeneration indexes were also significantly lower than among the healthy group: 59.0% versus 46.9% in the medial and 86.8% versus 57.7% in the lateral segment (P=.023 and P<.001) respectively. CONCLUSION The volume regeneration potential in diseased livers is significantly lower than that of a normal, healthy liver. So, we must consider a patient's liver status and volume profile before an extensive liver.
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Affiliation(s)
- M K Ju
- Department of Surgery, Yonsei University Health System, Gangnam Severance Hospital, Seoul, South Korea
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Son SY, Yang HM, Lee SH, Hong CH, Ju MK, Kim SI. Does video-assisted minilaparotomy surgical living donor nephrectomy satisfy donors? Transplant Proc 2012; 44:32-5. [PMID: 22310571 DOI: 10.1016/j.transproceed.2011.12.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
PURPOSE Video-assisted minilaparotomy surgical (VAMS) nephrectomy is believed to provide better cosmetic outcomes than open-donor nephrectomy in healthy donors. However, the results of a few studies have influenced the opinion of donors on their physical appearance. This study investigated the satisfaction of donors after a VAMS living donor nephrectomy. METHODS Donors who underwent VAMS living donor nephrectomy between 2009 and 2011 were requested to fill out a body image questionnaire. This questionnaire consisted of three subscales: body image scale (BS), confidence in surgery scale (CS), and hospital experience scale (HS). A total of 20 VAMS living nephrectomy donors completed the questionnaire. RESULTS The study included 3 male and 17 female donors of overall mean age of 38.7 ± 12.4 years. Eight donors were unmarried (40.0%), 11 were married (55.0%), and 1 was divorced. The mean follow-up was 7.9 ± 4.5 months. The mean BS, CS, and HS scores were 41.6 ± 5.3, 21.85 ± 8.3, and 13.9 ± 2.2, corresponding to perfect scores of 50, 30, and 20, respectively. CONCLUSION The results of this study showed that VAMS nephrectomy donors tended to be pleased with their body image, operation, and hospital experiences.
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Affiliation(s)
- S Y Son
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
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Ju MK, Park SH, Kim SJ, Moon IS, Kim YS. A 6-month, open-label, multicenter clinical study in Korean de novo renal transplant patients evaluating the efficacy, safety, and tolerance of myfortic concomitantly used with tacrolimus. Transplant Proc 2012; 44:144-6. [PMID: 22310600 DOI: 10.1016/j.transproceed.2011.12.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Enteric-coated mycophenolate sodium (myfortic, Novartis Pharma AG, Basel, Switzerland) is designed to improve the gastrointestinal tolerability of micophenolic acid. This study was designed to evaluate the efficacy and safety of myfortic in Korean de novo renal transplantation. A total of 65 patients from four transplantation centers received the study drug at least once and were included in the intention-to-treat analysis. This study was an open-label, single-arm, multicenter trial with 6-month patient follow-up. Patients received 360 mg (body weight < 50 kg) or 720 mg (body weight > 50 kg) of myfortic per day with tacrolimus and steroids. Induction therapy included basiliximab. The incidence of biopsy-confirmed acute rejection (primary endpoint) within 6 months after transplantation was 7/65 (10.8%). There were 2 (3.1%) graft losses due to severe acute rejection and 1 (1.5%) patient-death due to cardiac arrest. Twenty-two (38.8%) patients experienced gastrointestinal discomfort; however, only 3 (4.5%) cases were associated with an apparent drug reaction. Seventeen (25.4%) patients underwent dose adjustment or myfortic discontinuation during the study period. Patient and graft survival rates at 6 months posttransplantation were 98.1% and 97.0%. Myfortic with tacrolimus-based immunosuppression was efficient and safe after de novo renal transplantation in Korean patients.
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Affiliation(s)
- M K Ju
- Severance Hospital, Yonsei University Health System, Seoul, South Korea
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Jung WW, Kim SC, Jung SW, Moon IY, Kumar K, Lee YW, Kim SY, Ju MK, Han SK, Yi J. Optimization of selective emitter fabrication method for solar cells using a laser grooving. J Nanosci Nanotechnol 2011; 11:4373-4377. [PMID: 21780460 DOI: 10.1166/jnn.2011.3711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
In this paper, screen-printing laser grooved buried contact (LGBC) method was applied, which is compatible with the existing screen-printed solar cell equipment and facilities. Experiments were performed in order to optimize short circuit current (I(sc)), open circuit voltage (V(oc)) and fill factor of high efficiency solar cells. To enhance I(sc), V(oc) and efficiency, heavy doping was performed at low sheet resistance in the laser grooved region of the cell. In contrast, light doping was carried out at a high sheet resistance in the non-laser grooved region. To increase fill factor, porous silicon found on the wafer after dipping in an HF solution to remove SiN(x), was cleared. The fabricated screen-printing LGBC solar cell using a 125 mm x 125 mm single crystalline silicon wafer exhibited an efficiency of 17.2%. The results show that screen-printing LGBC method can be applied for high efficiency solar cells.
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Affiliation(s)
- W W Jung
- School of Information and Communication Engineering, Sungkyunkwan University, 300 Cheoncheon-dong, Jangan-gu, Suwon 440-746, Korea
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Kim JY, Ju MK, Kim MS, Kim NK, Sohn SK, Kim SI, Kim YS. Clinical characteristics and treatment outcomes of colorectal cancer in renal transplant recipients in Korea. Yonsei Med J 2011; 52:454-62. [PMID: 21488188 PMCID: PMC3101048 DOI: 10.3349/ymj.2011.52.3.454] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2010] [Revised: 08/07/2010] [Accepted: 08/17/2010] [Indexed: 12/29/2022] Open
Abstract
PURPOSE Transplant recipients in Asia appear to be at a higher risk for developing colorectal cancer (CRC). This study was performed to identify the clinicopathological features and oncologic outcomes of CRC in post-renal transplants in Korea. MATERIALS AND METHODS We retrospectively reviewed the records of 17 patients with CRC out of 2,630 recipients who underwent renal transplantation between 1994 and 2007. These patients (transplant group) were compared with general CRC patients (n=170, control group) matched, based on the closest date of surgery to the transplant group. RESULTS During 29.7 months of the median follow- up period, the recurrent and survival rates from recurrence were worse in the transplant group than in the control group (35.2% versus 15.2%; p=0.048 and p=0.025). The 2-year patient survival rate of the transplant group was significantly worse than the control group in advanced cancer (stages III-IV; 45.7% versus 71.6%; p=0.023). In early cancer (stages 0-I), there was no significant difference in 5-year patient survival rate between the two groups (100% versus 92.6%, respectively; p=0.406). CONCLUSION In spite of a poor prognosis of advanced CRC in the transplant group, the early stage CRC of the transplant group showed a comparable oncologic outcome compared with the control group. Regular screening and early detection of CRC are essential in the post-transplant setting.
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Affiliation(s)
- Jeong Yeon Kim
- Department of Surgery, Hangang Sacred Heart Hospital, College of Medicine, Hallym University, Seoul, Korea
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Man Ki Ju
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Myoung Soo Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Nam Kyu Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Seung Kook Sohn
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Soon Il Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Yu Seun Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
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Lee JJ, Kim MS, Kim YS, Joo DJ, Ju MK, Kim HJ, Lee JE, Kim SI, Huh KH. The effect of later change or modulation of immunosuppression on long-term renal transplant results. Transplant Proc 2010; 42:4037-9. [PMID: 21168620 DOI: 10.1016/j.transproceed.2010.10.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2010] [Revised: 10/07/2010] [Accepted: 10/11/2010] [Indexed: 11/15/2022]
Abstract
Proper maintenance of immunosuppression is required to achieve long-term graft survival. The aim of this study was to evaluate the effect of change or modulation of an immunosuppressive regimen (IR) on graft survival during the posttransplant period in patients undergoing kidney transplantation. A total of 1164 patients who underwent kidney transplantation between January 1997 and December 2008 at Yonsei University Health System were enrolled. All patients initially received calcineurin inhibitor (CNI)-based double or triple IR (DIR and TIR, respectively). The causes of IR changes or modulation were reviewed retrospectively. Graft survival rate was compared according to types of maintenance immunosuppression (DIR versus TIR). Initially, DIR and TIR were adopted in 201 (17.3%) and 963 (82.7%) recipients, respectively. In 77 DIR recipients (38.8%) and 271 TIR recipients (28.1%), IRs were changed. Among recipients of an initial DIR, the most frequent reasons for IR change were acute rejection (50%) within 6 months of transplantation and chronic allograft dysfunction (70%) after 6 months. In TIR recipients, the reasons for IR change included drug toxicity or drug-related side effects (34.3%) within 6 months of transplantation and complications related to overimmunosuppression (39.3%) after 6 months. The group in which the IR was changed from the initial DIR to the later TIR had a statistically superior graft survival rate compared to the group that did not have a change in the initial DIR (P = .032). In contrast, TIR recipients without change had better graft survival rate than recipients with initial TIR change to later DIR (P < .001). Change or modulation of immunosuppression from initial DIR to later TIR could affect long-term graft survival.
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Affiliation(s)
- J J Lee
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
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Park YJ, Ahn HJ, Kim YS, Cho Y, Joo DJ, Ju MK. Illumina-microarray analysis of mycophenolic acid-induced cell death in an insulin-producing cell line and primary rat islet cells: New insights into apoptotic pathways involved. Cell Signal 2010; 22:1773-82. [DOI: 10.1016/j.cellsig.2010.07.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2010] [Accepted: 07/07/2010] [Indexed: 11/25/2022]
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Jeong JH, Lee JI, Ju MK, Joo DJ, Huh KH, Kim MS, Kim JY, Cho Y, Kim YS. Proliferation of pancreatic endocrine cells using disaggregation-expansion-reaggregation technology in isolated rat islets. Transplant Proc 2010; 42:907-10. [PMID: 20430201 DOI: 10.1016/j.transproceed.2010.02.044] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Donor scarcity is a major obstacle for clinical islet transplantation. Hence, the effective use of the limited number of available islets is necessary for successful islet transplantation. We have developed a new technology that could produce pseudo-islets. Morphologic and functional evaluation was performed to test the feasibility of using these cells for transplantation. A 3-step procedure known as disaggregation-expansion-reaggregation (DER) was employed for pseudo-islet preparation. Islets isolated from 200 to 250-g male Lewis rats by collagenase digestion were separated into single cells by trypsinization. These pancreatic endocrine cells (PECs) were expanded by serial passages in culture before being aggregated at a high cell-density in a suspended state. After DER, cells were morphologically analyzed over time, and gene expression evaluated by reverse transcriptase polymerase chain reaction (RT-PCR). Through expansion by passage for 2 weeks in continuous cultures, approximately 1 million PECs were recovered after aggregation. By phase-contrast microscopy, they presented with spherical shapes and similar sizes compared with naïve islets (50-800 microm). RT-PCR results indicated expression of insulin, glucagon, and pancreatic and duodenal homeobox gene 1, which were observed in primary isolated islets as well. The insulin secretion capacity of pseudo-islets was confirmed by enzyme-linked immunosorbent assay. In conclusion, PECs treated with DER showed potential to serve as a cell source for pseudo-islet generation after in vitro cellular expansion. These cells were both morphologically and genetically similar to naïve islets. Our new technique could be a potential method to overcome the scarcity of donor islets in the near future.
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Affiliation(s)
- J H Jeong
- Research Institute for Transplantation, Yonsei University, Graduate Program of Nanoscience and Technology, Department of Surgery, Yonsei University College of Medicine, Yonsei University, Seoul, South Korea
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Ju MK, Choi GH, Huh KH, Joo DJ, Kim SJ, Choi J, Kim MS, Kim SI, Kim YS. UCSF criteria by pre-transplant radiologic study can not assure similar post-transplant results of hepatocellular carcinoma within Milan criteria. Hepatogastroenterology 2010; 57:819-825. [PMID: 21033236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The recurrence of hepatocellular carcinoma (HCC) after transplantation is the main limitation of liver transplantation. Therefore, several selection criteria for liver transplantation in HCC patients have been established. The objective of this study was to verify the clinical validity of selection criteria evaluated by pre-transplant radiologic imaging study. Sixty-nine participants were enrolled for this study between September 2005 and May 2007. We analyzed the post-transplant survival and recurrence rate using radiologic selection criteria and other clinical factors. Grouping by pretransplant criteria for liver transplantation, 16 recipients (23.2%) were above Milan criteria and 7 recipients (10.1%) were above UCSF criteria. Nine recipients (13.0%) were grouped as above Milan/below UCSF. The recipients who met Milan showed 85.8% 1-year survival rates, which was comparable to that of non-HCC (91.6%) (p = 0.767). During the post-transplant follow-up period (1-52 months, 14.81 +/- 12.0 months), 16 recurrences (23.2%) were diagnosed. The 1-year recurrence-free survival rate of recipients who met the Milan criteria was 78.6%, and those that did not meet these criteria was 22.7% (p < 0.0001). With regard to UCSF criteria, these percentages were 72.0% and 14.2%, respectively (p < 0.0001). According to a combined grouping, the 1-year recurrence-free survival rate was 25.4% in the above Milan/below UCSF group. There were significant differences among each of the groups (overall p < 0.0001). The application of UCSF criteria that are defined by pre-transplant radiologic findings as patient selection criteria for liver transplantation is limited.
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Affiliation(s)
- Man Ki Ju
- Department of Surgery, Yonsei University College of Medicine, 134 Shinchon-Dong, Seodaemun-Ku, Seoul 120-752, Republic of Korea
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Kim JY, Lee JI, Jeong JH, Fang Y, Ju MK, Kim SJ, Huh KH, Kim MS, Kim YS. Improved Yield and Functional Parameters of Rat Pancreas Islets Isolated under Intramuscular Anesthesia. Cell Transplant 2010; 19:743-50. [DOI: 10.3727/096368910x508843] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Intraperitoneal (IP) anesthesia is commonly used for laboratory animal experiments including rat islet isolation. However, the direct effects of anesthetics on pancreatic islets have been neglected. This study compared the islet function and recovery yield from rats that were anesthetized using IP and intramuscular (IM) injection. In addition, the lag time required to lose deep pain was measured in the following anesthetics combinations. Lewis rats were anesthetized using ketamine and xylazine (K/X) or zoletil and xylazine (Z/X). A glucose challenge test was performed on each group of prepared islets. The effect of the anesthetic agents (e.g., ketamine, zoletil, xylazine alone, and the combination of K/X and Z/X) on cell lines (rat insulinoma; RIN-5F) was investigated by determining their effect on the cell viability, the amount of insulin, and insulin mRNA expression levels of RIN-5F. The time needed for deep anesthesia in IM anesthesia was significantly shortened in comparison to IP [K/X (IM: 313 ± 66 s, IP: 371 ± 84 s) and Z/X (IM: 206 ± 76 s, IP: 245 ± 92 s)]. In addition, number of isolated islet yield by IM anesthesia was significantly improved [K/X (IM: 1530 ± 242, IP: 1245 ± 149) and Z/X (IM: 1136 ± 226, IP: 511 ± 154)]. The functions of fresh islets, indicated by the stimulation index, acquired under IM anesthesia was better preserved than that of IP. The viability and the insulin secretion of RIN-5F were decreased at 24 and 48 h. Insulin gene expression levels were decreased at 24 h as well. Anesthetics may be absorbed through the pancreas surface to the islets and have a direct effect, resulting in islet exposure and deterioration during isolation. In conclusion, for rodent islet isolation, IM anesthesia is simpler and safer in comparison to IP anesthesia.
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Affiliation(s)
- Joon Ye Kim
- The Research Institute for Transplantation, Yonsei University, Seoul, South Korea
| | - Jeong-Ik Lee
- The Research Institute for Transplantation, Yonsei University, Seoul, South Korea
- Department of Biomedical Science & Technology, IBST, Konkuk University, Seoul, South Korea
| | - Jin Ho Jeong
- The Research Institute for Transplantation, Yonsei University, Seoul, South Korea
- Graduate Program of Nanoscience and Technology, Yonsei University, Seoul, South Korea
| | - Yuhui Fang
- The Research Institute for Transplantation, Yonsei University, Seoul, South Korea
- Graduate Program of Nanoscience and Technology, Yonsei University, Seoul, South Korea
| | - Man Ki Ju
- The Research Institute for Transplantation, Yonsei University, Seoul, South Korea
- Department of Transplantation Surgery, Yonsei University Health System, Seoul, South Korea
| | - Soo Jin Kim
- The Research Institute for Transplantation, Yonsei University, Seoul, South Korea
- Department of Transplantation Surgery, Yonsei University Health System, Seoul, South Korea
| | - Kyu Ha Huh
- The Research Institute for Transplantation, Yonsei University, Seoul, South Korea
- Department of Transplantation Surgery, Yonsei University Health System, Seoul, South Korea
| | - Myoung Soo Kim
- The Research Institute for Transplantation, Yonsei University, Seoul, South Korea
- Department of Transplantation Surgery, Yonsei University Health System, Seoul, South Korea
| | - Yu Seun Kim
- The Research Institute for Transplantation, Yonsei University, Seoul, South Korea
- Graduate Program of Nanoscience and Technology, Yonsei University, Seoul, South Korea
- BK21 for Medical Science, Yonsei University, College of Medicine, Seoul, South Korea
- Department of Transplantation Surgery, Yonsei University Health System, Seoul, South Korea
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Ju MK, Han DJ, Kim SJ, Moon IS, Kim YL, Kim HC, Kim SJ, Kim SJ, Kim SI, Kim YH, Oh CK, Kim YS. Sirolimus/steroids Maintenance Therapy after Early Cyclosporine Withdrawal: 12-month Efficacy and Safety Results of Multicenter Single Arm Pilot Study in Primary Renal Allograft Recipients in Korea. J Korean Surg Soc 2010. [DOI: 10.4174/jkss.2010.79.4.261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Man Ki Ju
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Duck-Jong Han
- Department of Surgery, Asan Medical Center, Seoul, Korea
| | - Soo Jin Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - In Sung Moon
- Department of Surgery, Catholic University College of Medicine, Seoul, Korea
| | - Yong Lim Kim
- Department of Internal Medicine, Kyungpook University College of Medicine, Daegu, Korea
| | - Hyun Chul Kim
- Department of Internal Medicine, Keimyung University College of Medicine, Daegu, Korea
| | - Seong Joo Kim
- Department of Surgery, Samsung Medical Center, Seoul, Korea
| | - Sang Joon Kim
- Department of Surgery, Seoul National University Hospital, Seoul, Korea
| | - Soon Il Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Yeong Hoon Kim
- Department of Internal Medicine, Inje University College of Medicine, Busan, Korea
| | - Chang Kwon Oh
- Department of Surgery, Ajou University School of Medicine, Suwon, Korea
| | - Yu Seun Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
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Lee HH, Lee JJ, Ju MK, Kim MS, Huh KH, Yoon ES, Joo DJ, Kim SJ, Kim SI, Kim YS. Clinical Characteristics of Acute Appendicitis in Kidney Transplant Recipients. Korean J Transplant 2009. [DOI: 10.4285/jkstn.2009.23.3.233] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Affiliation(s)
- Han Hee Lee
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Jun Lee
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Man Ki Ju
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Myoung Soo Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Kyu Ha Huh
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Eyi Sang Yoon
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Dong Jin Joo
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Soo Jin Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Soon Il Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Yu Seun Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
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Ju MK, Joo DJ, Kim SJ, Chang HK, Kim MS, Kim SI, Kim YS. Invasive pulmonary aspergillosis after solid organ transplantation: diagnosis and treatment based on 28 years of transplantation experience. Transplant Proc 2009; 41:375-8. [PMID: 19249560 DOI: 10.1016/j.transproceed.2008.11.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2008] [Revised: 10/25/2008] [Accepted: 11/05/2008] [Indexed: 01/11/2023]
Abstract
Invasive pulmonary aspergillosis (IPA) is a serious and lethal complication among organ transplant recipients. This report described the clinical manifestations and treatment of IPA over a 28-year period. From January 1979 to December 2007, 3215 organ transplant patients (2954 kidney and 261 liver recipients) were enrolled in the study. Nine patients developed IPA (7 kidney and 2 liver recipients), yielding an incidence of 0.003% (9/3215). Five IPA patients (55.6%) were diagnosed by transbronchial lung biopsy or autopsy, and 3 (33.3%) by sputum culture study. One patient was diagnosed through clinical manifestations and observations of IPA characteristics on chest X ray. We used amphotericin B (n = 4; 44.4%), voriconazole (n = 2; 22.2%), or fluconazole (n = 1; 11.1%) as the primary antifungal agents, but 2 patients could not receive antifungal agents due to rapid disease progression and sequential mortality. This study showed a high mortality rate among IPA patients (55.6%; 5/9). Only patients who received early antifungal agent thereby after a prompt diagnosis recovered from IPA. This survival advantage warrants careful monitoring for invasive fungal infections after organ transplantation with immediate administration of antifungal agents or surgical intervention.
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Affiliation(s)
- M K Ju
- Department of Surgery and The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
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Huh KH, Ahn HJ, Park J, Ju MK, Song JS, Kim MS, Kim SI, Kim YS. Mycophenolic acid inhibits oleic acid-induced mesangial cell activation through both cellular reactive oxygen species and inosine monophosphate dehydrogenase 2 pathways. Pediatr Nephrol 2009; 24:737-45. [PMID: 19093139 DOI: 10.1007/s00467-008-1075-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2008] [Revised: 11/05/2008] [Accepted: 11/15/2008] [Indexed: 01/05/2023]
Abstract
The synthesis of extracellular matrix (ECM) in mesangial cells (MCs) plays important roles in the development and progression of renal diseases, including chronic allograft nephropathy. Mycophenolic acid (MPA), an inhibitor of inosine monophosphate dehydrogenase 2 (IMPDH2), suppresses MC proliferation and ECM synthesis. However, the exact inhibitory mechanism of MPA on MCs has not been clearly elucidated. In this study we compared the inhibitory effects of MPA and IMPDH2 reduction [by using small interfering RNA (siRNA)] on oleic acid (OA)-induced fibronectin secretion and cellular reactive oxygen species (ROS) in mouse MCs. Growth-arrested MCs were stimulated with OA in the presence or absence of MPA, IMPDH2 siRNA, N-acetylcysteine (NAC), transforming growth factor beta (TGF-beta) antibody or exogenous guanosine. Fibronectin secretion into the medium was examined by Western blot, dichlorodihydrofluorescein (DCF)-sensitive cellular ROS by fluorescence-activated cell scanning (FACS), TGF-beta levels in the media by enzyme-linked immunosorbent assay (ELISA). OA increased fibronectin secretion, TGF-beta and cellular ROS levels. A TGF-beta neutralizing antibody effectively suppressed OA-induced fibronectin secretion. NAC and MPA completely suppressed OA-induced fibronectin secretion and decreased the levels of TGF-beta and cellular ROS. However, IMPDH2 siRNA partly inhibited OA-induced MC activation. Exogenous guanosine successfully reversed the inhibitory effects of IMPDH2 siRNA on OA-induced MC activation. Pleiotropic inhibitory effect of MPA on OA-induced mouse MC activation was mediated via its antioxidant effect on cellular ROS production and partly via inhibition of IMPDH2 itself. Our results implicate ROS as an alternative therapeutic target for the prevention of hyperlipidemia-related glomerulopathy, chronic allograft nephropathy, and subsequent graft loss.
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Affiliation(s)
- Kyu Ha Huh
- The Research Institute for Transplantation, Seoul, Korea
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