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Huh K, Lee SO, Kim J, Lee SJ, Choe PG, Kang JM, Yang J, Sung H, Kim SH, Moon C, Seok H, Shi HJ, Wi YM, Jeong SJ, Park WB, Kim YJ, Kim J, Ahn HJ, Kim NJ, Peck KR, Kim MS, Kim SI. Prevention of Cytomegalovirus Infection in Solid Organ Transplant Recipients: Guidelines by the Korean Society of Infectious Diseases and the Korean Society for Transplantation. Infect Chemother 2024; 56:101-121. [PMID: 38527780 PMCID: PMC10990892 DOI: 10.3947/ic.2024.0016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 03/04/2024] [Indexed: 03/27/2024] Open
Abstract
Cytomegalovirus (CMV) is the most important opportunistic viral pathogen in solid organ transplant (SOT) recipients. The Korean guideline for the prevention of CMV infection in SOT recipients was developed jointly by the Korean Society for Infectious Diseases and the Korean Society of Transplantation. CMV serostatus of both donors and recipients should be screened before transplantation to best assess the risk of CMV infection after SOT. Seronegative recipients receiving organs from seropositive donors face the highest risk, followed by seropositive recipients. Either antiviral prophylaxis or preemptive therapy can be used to prevent CMV infection. While both strategies have been demonstrated to prevent CMV infection post-transplant, each has its own advantages and disadvantages. CMV serostatus, transplant organ, other risk factors, and practical issues should be considered for the selection of preventive measures. There is no universal viral load threshold to guide treatment in preemptive therapy. Each institution should define and validate its own threshold. Valganciclovir is the favored agent for both prophylaxis and preemptive therapy. The evaluation of CMV-specific cell-mediated immunity and the monitoring of viral load kinetics are gaining interest, but there was insufficient evidence to issue recommendations. Specific considerations on pediatric transplant recipients are included.
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Affiliation(s)
- Kyungmin Huh
- Division of Infectious Diseases, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sang-Oh Lee
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
| | - Jungok Kim
- Division of Infectious Diseases, Department of Medicine, Chungnam National University School of Medicine, Daejeon, Korea
| | - Su Jin Lee
- Division of Infectious Diseases, Department of Internal Medicine, Pusan National University School of Medicine, Yangsan, Korea
| | - Pyoeng Gyun Choe
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Ji-Man Kang
- Department of Pediatrics, Severance Children's Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Jaeseok Yang
- Department of Internal Medicine, Yonsei University College of Medicine, Severance Hospital, Seoul, Korea
| | - Heungsup Sung
- Department of Laboratory Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Si-Ho Kim
- Division of Infectious Diseases, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea
| | - Chisook Moon
- Division of Infectious Diseases, Department of Internal Medicine, Inje University Busan Paik Hospital, College of Medicine, Busan, Korea
| | - Hyeri Seok
- Division of Infectious Diseases, Department of Internal Medicine, Korea University Ansan Hospital, Korea University Medicine, Ansan, Korea
| | - Hye Jin Shi
- Division of Infectious Diseases, Department of Internal Medicine, Gachon University Gil Medical Center, Gachon University College of Medicine, Incheon, Korea
| | - Yu Mi Wi
- Division of Infectious Diseases, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea
| | - Su Jin Jeong
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Wan Beom Park
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Youn Jeong Kim
- Division of Infectious Diseases, Department of Internal Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, Korea
| | - Jongman Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hyung Joon Ahn
- Department of Surgery, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Nam Joong Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Kyong Ran Peck
- Division of Infectious Diseases, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Myoung Soo Kim
- Department of Surgery, The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Il Kim
- Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Kang R, Han S, Kim JM, Lee KW, Park HW, Ahn JH, Kim S, Kang ES, Kim GS, Joh JW. Postoperative hyperglycemia may negatively impact cytomegalovirus infection in seropositive liver transplant recipients: a retrospective cohort study. Transpl Int 2019; 33:68-75. [PMID: 31429502 DOI: 10.1111/tri.13496] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 04/15/2019] [Accepted: 08/15/2019] [Indexed: 11/28/2022]
Abstract
The aim of the study was to evaluate the association between postoperative hyperglycemia and CMV infection. We analyzed 741 CMV seropositive recipients, of livers from seropositive living donors, who underwent preemptive CMV treatment without CMV prophylaxis. The primary outcome was early CMV infection within 1 month after surgery. Hyperglycemia was defined when mean postoperative blood glucose concentration was >180 mg/dl based on previous research and guidelines. Survival analysis was performed using the Fine and Gray model by accounting for the competing risk of CMV infection-unrelated death. Of the 741 recipients (hyperglycemic group, n = 287; nonhyperglycemic group, n = 454), 372 (50.2%) recipients developed cytomegalovirus (CMV) infection within 1 month after surgery. CMV infection risk was significantly higher in hyperglycemic group than in nonhyperglycemic group in univariable analysis [hazard ratio (HR) 1.34, 95% confidence interval (CI), 1.08-1.66; P = 0.007] and in multivariable analysis (HR 1.25, 95% CI 1.0-1.54; P = 0.038). CMV infection risk was also significantly associated with recipient age, graft ischemia time, model for end-stage liver disease score, and preoperative neutrophil-to-lymphocyte ratio (P < 0.05). In conclusion, preventing postoperative hyperglycemia appears to be an important factor decreasing the risk of CMV infection in seropositive liver transplant recipients undergoing preemptive CMV treatment.
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Affiliation(s)
- RyungA Kang
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sangbin Han
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jong Man Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kyo Won Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hyo Won Park
- Department of Anesthesiology and Pain Medicine, Seoul Medical Center, Seoul, Korea
| | - Joong Hyun Ahn
- Statistics and Data Center, Samsung Medical Center, Seoul, Korea
| | - Seonwoo Kim
- Statistics and Data Center, Samsung Medical Center, Seoul, Korea
| | - Eun-Suk Kang
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Gaab Soo Kim
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jae-Won Joh
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Lee JS, Kim JM, Kim KS, Choi GS, Joh JW, Lee SK. Predictors of incisional hernia in adult liver transplant recipients. Hernia 2018; 23:61-65. [PMID: 30406851 DOI: 10.1007/s10029-018-1845-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 10/29/2018] [Indexed: 01/14/2023]
Abstract
PURPOSE Incisional hernia is a complication following abdominal operation. Patients undergoing liver transplantation have a high risk of developing incisional hernia because of immunosuppression. The purpose of this study was to evaluate incisional hernia after liver transplantation and to identify risk factors for hernia formation in those patients. METHODS We retrospectively reviewed 1044 adult patients with more than 2 years of follow-up in patients who underwent liver transplantation from January 2000 to December 2015. RESULTS Incisional hernia was identified in 79 patients with more than 2 years of follow-up. The overall incisional hernia rate was 7.6%. The mean age and body mass index (BMI) of the patients with incisional hernia were 55 ± 9 years and 25.3 ± 3.7 kg/m2, respectively. No significant differences in gender, diagnosis, diabetes, Child-Pugh score, model for end-stage liver disease (MELD) score, donor type, hepatorenal syndrome, varix bleeding, ascites, hepatic encephalopathy, ventilator use, spontaneous bacterial peritonitis (SBP), or bile leakage were found between patients who did and did not develop incisional hernia. Patients with acute rejection before hernia development were more to have herniated patients hernia (p < 0.05). CONCLUSION Age greater than 55 years and high BMI were significant risk factors. We identified risk factors for the development of incisional hernia. Based on these risk factors, attention should be paid to incisional hernia in older and obese patients.
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Affiliation(s)
- J S Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, South Korea
| | - J M Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, South Korea.
| | - K S Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, South Korea
| | - G-S Choi
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, South Korea
| | - J-W Joh
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, South Korea
| | - S-K Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, South Korea
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Weiler N, Trötschler S, Vermehren J, Schnitzbauer AA, Bechstein WO, Herrmann E, Zeuzem S, Welker MW. Risk-guided strategy to prevent cytomegalovirus associated complications after liver transplantation. Future Virol 2018. [DOI: 10.2217/fvl-2018-0045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aim: We evaluated a risk-guided strategy to prevent cytomegalovirus-associated complications (CMV-ac) after liver transplantation (LT). Patients & methods: Forty liver graft recipients were stratified according to their CMV risk status to prophylactic (high risk, HR and group) or pre-emptive antiviral treatment (intermediate, IR, and low risk, LR and group). A detailed analysis of clinical and virological data was performed. Results: 8/40 patients were classified within the HR, 28/40 within the IR and 4/40 within the LR group. Incidence of CMV viremia was 3/8 (38%) in the HR, 9/28 (32%) in the IR and 0/5 in the LR group. Mortality rate of CMV-ac was 0%. Conclusion: A risk-guided antiviral strategy is effective to prevent severe CMV-ac up to 1 year after LT.
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Affiliation(s)
- Nina Weiler
- Medizinische Klinik 1, Universitätsklinikum Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Sven Trötschler
- Medizinische Klinik 1, Universitätsklinikum Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Johannes Vermehren
- Medizinische Klinik 1, Universitätsklinikum Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Andreas A Schnitzbauer
- Klinik für Allgemein- und Viszeralchirurgie, Universitätsklinikum Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Wolf O Bechstein
- Klinik für Allgemein- und Viszeralchirurgie, Universitätsklinikum Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Eva Herrmann
- Institut für Biostatistik und Mathematische Modellierung, Universitätsklinikum Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Stefan Zeuzem
- Medizinische Klinik 1, Universitätsklinikum Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Martin-Walter Welker
- Medizinische Klinik 1, Universitätsklinikum Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
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Lee JS, Lee SH, Kim KS, Gil EM, Choi GS, Kim JM, Peck KR, Kwon CHD, Joh JW, Lee SK. Bacterial infection monitoring in the early period after liver transplantation. Ann Surg Treat Res 2018. [PMID: 29520350 PMCID: PMC5842088 DOI: 10.4174/astr.2018.94.3.154] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Purpose Infection remains the main cause of morbidity and mortality in liver transplantation (LT) recipients; however infection is notoriously difficult to diagnose because its usual signs and symptoms of infection may be masked or absent. This study comprises an analysis of bacterial infections in the early period after LT. Methods This is a study of 129 adults who underwent LT from January 2013 to December 2013, and it includes patients who were followed daily from the day of transplantation to 1-week posttransplantation using bacteriological cultures of blood, urine, sputum, and drained ascites. Results The following factors were significantly different between the positive and negative culture groups: living donor LT vs. deceased donor LT (odds ratio [OR], 3.269; P = 0.003), model for end-stage liver disease score (OR, 4.364; P < 0.001), and Child-Pugh classification (P = 0.007). Neither positive culture nor negative culture was associated with infection within 4 weeks of surgery (P = 0.03), and most events were due to surgical complications (75%). Conclusion Since the full effect of immunosuppression is not yet present during the first month after LT, we suggest that the number of bacterial culture test could be reduced such that they are performed every other day depending on patient's situation.
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Affiliation(s)
- Ji Soo Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Seung Hwan Lee
- Department of Surgery, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine,Seoul, Korea
| | - Kyeong Sik Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Eun Mi Gil
- Critical Care Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Gyu-Seoung Choi
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jong Man Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kyong Ran Peck
- Division of Infectious Diseases, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Choon Hyuck David Kwon
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jae-Won Joh
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Suk-Koo Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Lee KW, Cho CW, Lee N, Choi GS, Cho YH, Kim JM, Kwon CHD, Joh JW. Extracorporeal membrane oxygenation support for refractory septic shock in liver transplantation recipients. Ann Surg Treat Res 2017; 93:152-158. [PMID: 28932731 PMCID: PMC5597539 DOI: 10.4174/astr.2017.93.3.152] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 03/21/2017] [Accepted: 04/18/2017] [Indexed: 12/13/2022] Open
Abstract
Purpose This study was designed to assess the outcome of the extracorporeal membrane oxygenation (ECMO) in liver transplantation (LT) recipients with refractory septic shock and predict the prognosis of those cases. Methods From February 2005 to October 2012, ECMO was used in 8 cases of refractory septic shock. Laboratory values including lactate and total bilirubin level just before starting ECMO were obtained and sepsis-related organ failure assessment (SOFA) score, acute physiology and chronic health evaluation (APACH) II score and simplified acute physiology score (SAPS) 3 were calculated. Subsequent peak serum lactate and total bilirubin level, and SOFA score after 24 hours of starting ECMO were measured. Results Comparisons were made between survivors and nonsurvivors. ECMO was weaned off successfully in 3 patients (37.5%) and 2 patients (25%) survived to hospital discharge. Clinical scores including SOFA, APACH II, and SAPS3 and laboratory results including lactate, total bilirubin and CRP were not significantly different between survivor and nonsurvivor groups. Lactate level and SOFA score tended to decrease after ECMO support in survivor group and total bilirubin and CRP level tended to increase in nonsurvivor group. Conclusion Our findings suggest that the implantation of ECMO might be considered in highly selected LT recipients with refractory septic shock.
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Affiliation(s)
- Kyo Won Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Chan Woo Cho
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Nuri Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Gyu-Seong Choi
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Yang Hyun Cho
- Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jong Man Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Choon Hyuck David Kwon
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jae-Won Joh
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Abad CL, Razonable RR. Treatment of alpha and beta herpesvirus infections in solid organ transplant recipients. Expert Rev Anti Infect Ther 2016; 15:93-110. [PMID: 27911112 DOI: 10.1080/14787210.2017.1266253] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Human herpesviruses frequently cause infections in solid organ transplant (SOT) recipients. Areas covered: We provide an overview of the clinical impact of alpha and beta herpesviruses and highlight the mechanisms of action, pharmacokinetics, clinical indications, and adverse effects of antiviral drugs for the management of herpes simplex virus, varicella zoster virus and cytomegalovirus. We comprehensively evaluated key clinical trials that led to drug approval, and served as the foundation for management guidelines. We further provide an update on investigational antiviral agents for alpha and beta herpesvirus infections after SOT. Expert commentary: The therapeutic armamentarium for herpes infections is limited by the emergence of drug resistance. There have been major efforts for discovery of new drugs against these viruses, but the results of early-phase clinical trials have been less than encouraging. We believe, however, that more antiviral drug options are needed given the adverse side effects associated with current antiviral agents, and the emergence of drug-resistant virus populations in SOT recipients. Likewise, optimized use and strategies are needed for existing and novel antiviral drugs against alpha and beta-herpesviruses in SOT recipients.
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Affiliation(s)
- C L Abad
- a Division of Infectious Diseases, Department of Medicine , Mayo Clinic , Rochester , MN , USA.,b Department of Medicine, Section of Infectious Diseases , University of the Philippines - Philippine General Hospital , Manila , Philippines
| | - R R Razonable
- a Division of Infectious Diseases, Department of Medicine , Mayo Clinic , Rochester , MN , USA.,c The William J. Von Liebig Center for Transplantation and Clinical Regeneration , Mayo Clinic , Rochester , MN , USA
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Lee KW, Lee S, Huh J, Cho CW, Lee N, Kim HS, Kim K, Kim JM, Choi GS, Kwon CHD, Joh JW, Lee SK. Outcome of living donor liver transplantation using right liver allografts with multiple arterial supply. Liver Transpl 2016; 22:1649-1655. [PMID: 27514322 DOI: 10.1002/lt.24600] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 07/26/2016] [Indexed: 02/07/2023]
Abstract
A right liver graft with multiple hepatic artery (HA) stumps can be found in approximately 5% of living donor liver transplantation (LDLT) using a right lobe graft. From January 2000 to June 2014, 1149 patients underwent LDLT procedures. Thirty patients with LDLT using a right lobe graft with multiple HA stumps and 149 patients with LDLT using a right lobe graft with a single HA stump were enrolled. These patients were divided into 3 groups: single HA (group 1, n = 149), multiple HAs with total reconstruction (group 2, n = 19), and multiple HAs with selective partial reconstruction (group 3, n = 11). Selective partial reconstruction was performed only when pulsatile back-bleeding was confirmed after larger HA reconstruction and sufficient intrahepatic arterial flow was confirmed by Doppler ultrasound (DUS). In group 2, the donor HAs were smaller (P < .001), and HA reconstruction took longer (P < .001). However, there was no significant difference among the groups regarding the arterial complication rate, biliary complication rate, and patient and graft survival. In conclusion, selective partial reconstruction of HA stumps for LDLT using a right lobe graft was feasible when intrahepatic arterial communication was confirmed by pulsatile back-bleeding from the smaller artery and DUS. Liver Transplantation 22 1649-1655 2016 AASLD.
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Affiliation(s)
- Kyo Won Lee
- Department of Surgery, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sanghoon Lee
- Department of Surgery, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jeungmin Huh
- Department of Surgery, Guro Sungsim Medical Center, Seoul, Korea
| | - Chan Woo Cho
- Department of Surgery, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Nuri Lee
- Department of Surgery, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hye Seung Kim
- Biostatistics and Clinical Epidemiology Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Korea
| | - Kyunga Kim
- Biostatistics and Clinical Epidemiology Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Korea
| | - Jong Man Kim
- Department of Surgery, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Gyu Seong Choi
- Department of Surgery, Sungkyunkwan University School of Medicine, Seoul, Korea
| | | | - Jae-Won Joh
- Department of Surgery, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Suk-Koo Lee
- Department of Surgery, Sungkyunkwan University School of Medicine, Seoul, Korea
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