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Kow AWC, Liu J, Patel MS, De Martin E, Reddy MS, Soejima Y, Syn N, Watt K, Xia Q, Saraf N, Kamel R, Nasralla D, McKenna G, Srinvasan P, Elsabbagh AM, Pamecha V, Palaniappan K, Mas V, Tokat Y, Asthana S, Cherukuru R, Egawa H, Lerut J, Broering D, Berenguer M, Cattral M, Clavien PA, Chen CL, Shah S, Zhu ZJ, Emond J, Ascher N, Rammohan A, Bhangui P, Rela M, Kim DS, Ikegami T. Post Living Donor Liver Transplantation Small-for-size Syndrome: Definitions, Timelines, Biochemical, and Clinical Factors for Diagnosis: Guidelines From the ILTS-iLDLT-LTSI Consensus Conference. Transplantation 2023; 107:2226-2237. [PMID: 37749812 DOI: 10.1097/tp.0000000000004770] [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: 09/27/2023]
Abstract
BACKGROUND When a partial liver graft is unable to meet the demands of the recipient, a clinical phenomenon, small-for-size syndrome (SFSS), may ensue. Clear definition, diagnosis, and management are needed to optimize transplant outcomes. METHODS A Consensus Scientific committee (106 members from 21 countries) performed an extensive literature review on specific aspects of SFSS, recommendations underwent blinded review by an independent panel, and discussion/voting on the recommendations occurred at the Consensus Conference. RESULTS The ideal graft-to-recipient weight ratio of ≥0.8% (or graft volume standard liver volume ratio of ≥40%) is recommended. It is also recommended to measure portal pressure or portal blood flow during living donor liver transplantation and maintain a postreperfusion portal pressure of <15 mm Hg and/or portal blood flow of <250 mL/min/100 g graft weight to optimize outcomes. The typical time point to diagnose SFSS is the postoperative day 7 to facilitate treatment and intervention. An objective 3-grade stratification of severity for protocolized management of SFSS is proposed. CONCLUSIONS The proposed grading system based on clinical and biochemical factors will help clinicians in the early identification of patients at risk of developing SFSS and institute timely therapeutic measures. The validity of this newly created grading system should be evaluated in future prospective studies.
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Affiliation(s)
- Alfred Wei Chieh Kow
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, National University of Singapore, Singapore
- Liver Transplantation, National University Center for Organ Transplantation (NUCOT), National University Health System Singapore, Singapore
| | - Jiang Liu
- Department of Surgery, Hepato-pancreato-biliary Center, Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing, China
- Department of Surgery, LKS Faculty of Medicine, HKU-Shenzhen Hospital, University of Hong Kong, Hong Kong/Special Administrative Region (SAR), China
| | - Madhukar S Patel
- Division of Surgical Transplantation, University of Texas Southwestern Medical Center, Dallas, TX
| | - Eleonora De Martin
- Department of Hepatology, APHP, Hospital Paul Brousse, Centre Hépato-Biliaire, INSERM Unit 1193, FHU Hepatinov, Villejuif, France
| | - Mettu Srinivas Reddy
- Institute of Liver Disease and Transplantation, Gleneagles Global Health City, Chennai, India
| | - Yuji Soejima
- Department of Surgery, Shinshu University, Japan
| | - Nicholas Syn
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, National University of Singapore, Singapore
- Liver Transplantation, National University Center for Organ Transplantation (NUCOT), National University Health System Singapore, Singapore
| | - Kymberly Watt
- Division of Gastroenterology/Hepatology, Mayo Clinic, Rochester, MN
| | - Qiang Xia
- Department of Surgery, Division of Liver Transplantation, Renji Hospital, Renji Hospital affiliated to Shanghai Jiao Tong University School of Medicine, China
| | - Neeraj Saraf
- Institute of Liver Transplantation and Regenerative Medicine, Medanta-the Medicity, New Delhi, India
| | - Refaat Kamel
- Department of Surgery, Ain Shams University, Cairo, Egypt
| | - David Nasralla
- Department of HPB Surgery and Liver Transplantation, Royal Free London, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Greg McKenna
- Department of Surgery, Simmons Transplant Institute, Baylor University Medical Center, Dallas, TX
| | - Parthi Srinvasan
- Institute of Liver Studies, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Ahmed M Elsabbagh
- Gastroenterology Surgical Center, Department of Surgery, Mansoura University, Mansoura, Egypt
| | - Vinayendra Pamecha
- Department of Liver Transplant and Hepato-Pancreato-Biliary Surgery, Institute of Liver and Biliary Sciences, Vasant Kunj, New Delhi, India
| | - Kumar Palaniappan
- The Institute of Liver Disease and Transplantation, Dr Rela Institute, and Medical Centre, Bharath Institute of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Valeria Mas
- Department of Surgery, School of Medicine, University of Maryland, Baltimore, MD
| | - Yaman Tokat
- International Liver Center, Acibadem Healthcare Hospitals, Turkey
| | - Sonal Asthana
- Department of Surgery, Integrated Liver Care Aster CMI Hospital, Bangalore, India
| | - Ramkiran Cherukuru
- The Institute of Liver Disease and Transplantation, Dr Rela Institute, and Medical Centre, Chennai, Tamil Nadu, India
| | - Hiroto Egawa
- Hamamatsu Rosai Hospital, Hamamatsu, Shizuoka, Japan
| | - Jan Lerut
- Pôle de chirurgie expérimentale et transplantation, Université Catholique De Louvain, Louvain, Belgium
| | - Dieter Broering
- King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Marina Berenguer
- Hepatology and Liver Transplant Unit, Fundación Para La Investigación Del Hospital Universitario La Fe De La CCVV, IIS La Fe, Ciberehd, University of Valencia, Valencia, Spain
| | - Mark Cattral
- Department of Surgery, University Health Network, Toronto General Hospital, Toronto, ON, Canada
| | | | - Chao-Long Chen
- Department of Surgery, Chang Gung Memorial Hospital Kaoshiung, Taiwan
| | - Samir Shah
- Institute of Liver Disease, HPB Surgery and Rransplant, Global Hospitals, Mumbai, India
| | - Zhi-Jun Zhu
- Department of HPB Surgery and Liver Transplantation, Beijing Friendship Hospital, Beijing, China
| | - Jean Emond
- Department of Surgery, Columbia University Medical Center, New York, NY
| | - Nancy Ascher
- Division of Transplant Surgery, University of California San Francisco, San Francisco, CA
| | - Ashwin Rammohan
- The Institute of Liver Disease and Transplantation, Dr Rela Institute, and Medical Centre, Chennai, Tamil Nadu, India
| | - Prashant Bhangui
- Institute of Liver Transplantation and Regenerative Medicine, Medanta-the Medicity, New Delhi, India
| | - Mohamed Rela
- The Institute of Liver Disease and Transplantation, Dr Rela Institute, and Medical Centre, Chennai, Tamil Nadu, India
| | - Dong-Sik Kim
- Department of Surgery, Korea University Medical Center, Anam Hospital, Seoul, South Korea
| | - Toru Ikegami
- Department of Surgery, Centennial Hall Kyushu University School of Medicine, Kyushu, Japan
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Tamulevicius M, Oezcelik A, Koitka S, Theysohn JM, Hoyer DP, Farzaliyev F, Haubold J, Nensa F, Treckmann J, Malamutmann E. Preoperative Computed Tomography Volumetry and Graft Weight Estimation of Left Lateral Segment in Pediatric Living Donor Liver Transplant. EXP CLIN TRANSPLANT 2023; 21:831-836. [PMID: 37965959 DOI: 10.6002/ect.2023.0176] [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: 11/16/2023]
Abstract
OBJECTIVES Liver volumetry based on a computed tomography scan is widely used to estimate liver volume before any liver resection, especially before living donorliver donation. The 1-to-1 conversion rule for liver volume to liver weight has been widely adopted; however, debate continues regarding this approach. Therefore, we analyzed the relationship between the left-lateral lobe liver graft volume and actual graft weight. MATERIALS AND METHODS This study retrospectively included consecutive donors who underwent left lateral hepatectomy for pediatric living donor liver transplant from December 2008 to September 2020. All donors were healthy adults who met the evaluation criteria for pediatric living donor liver transplant and underwent a preoperative contrast-enhanced computed tomography scan. Manual segmentation of the leftlateral liverlobe for graft volume estimation and intraoperative measurement of an actual graft weight were performed. The relationship between estimated graft volume and actual graft weight was analyzed. RESULTS Ninety-four living liver donors were included in the study. The mean actual graft weight was ~283.4 ± 68.5 g, and the mean graft volume was 244.9 ± 63.86 mL. A strong correlation was shown between graft volume and actual graft weight (r = 0.804; P < .001). Bland-Altman analysis revealed an interobserver agreement of 38.0 ± 97.25, and intraclass correlation coefficient showed almost perfect agreement(r = 0.840; P < .001). The conversion formula for calculating graft weight based on computed tomography volumetry was determined based on regression analysis: 0.88 × graft volume + 41.63. CONCLUSIONS The estimation of left liver graft weight using only the 1-to-1 rule is subject to measurable variability in calculated graft weights and tends to underestimate the true graft weight. Instead, a different, improved conversion formula should be used to calculate graft weight to more accurately determine donor graft weight-to-recipient body weightratio and reduce the risk of underestimation of liver graft weightin the donor selection process before pediatric living donor liver transplant.
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Affiliation(s)
- Martynas Tamulevicius
- From the University Hospital Essen, Department of General, Visceral and Transplantation Surgery, Essen, Germany
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Agostini C, Buccianti S, Risaliti M, Fortuna L, Tirloni L, Tucci R, Bartolini I, Grazi GL. Complications in Post-Liver Transplant Patients. J Clin Med 2023; 12:6173. [PMID: 37834818 PMCID: PMC10573382 DOI: 10.3390/jcm12196173] [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: 08/26/2023] [Revised: 09/16/2023] [Accepted: 09/22/2023] [Indexed: 10/15/2023] Open
Abstract
Liver transplantation (LT) is the treatment of choice for liver failure and selected cases of malignancies. Transplantation activity has increased over the years, and indications for LT have been widened, leading to organ shortage. To face this condition, a high selection of recipients with prioritizing systems and an enlargement of the donor pool were necessary. Several authors published their case series reporting the results obtained with the use of marginal donors, which seem to have progressively improved over the years. The introduction of in situ and ex situ machine perfusion, although still strongly debated, and better knowledge and treatment of the complications may have a role in achieving better results. With longer survival rates, a significant number of patients will suffer from long-term complications. An extensive review of the literature concerning short- and long-term outcomes is reported trying to highlight the most recent findings. The heterogeneity of the behaviors within the different centers is evident, leading to a difficult comparison of the results and making explicit the need to obtain more consent from experts.
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Affiliation(s)
| | | | | | | | | | | | - Ilenia Bartolini
- Department of Experimental and Clinical Medicine, AOU Careggi, 50134 Florence, Italy; (C.A.); (S.B.); (M.R.); (L.F.); (L.T.); (R.T.); (G.L.G.)
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Parente A, Cho HD, Kim KH, Schlegel A. Association between Hepatocellular Carcinoma Recurrence and Graft Size in Living Donor Liver Transplantation: A Systematic Review. Int J Mol Sci 2023; 24:ijms24076224. [PMID: 37047199 PMCID: PMC10093934 DOI: 10.3390/ijms24076224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023] Open
Abstract
The aim of this work was to assess the association between graft-to-recipient weight ratio (GRWR) in adult-to-adult living donor liver transplantation (LDLT) and hepatocellular carcinoma (HCC) recurrence. A search of the MEDLINE and EMBASE databases was performed until December 2022 for studies comparing different GRWRs in the prognosis of HCC recipients in LDLT. Data were pooled to evaluate 1- and 3-year survival rates. We identified three studies, including a total of 782 patients (168 GRWR < 0.8 vs. 614 GRWR ≥ 0.8%). The pooled overall survival was 85% and 77% at one year and 90% and 83% at three years for GRWR < 0.8 and GRWR ≥ 0.8, respectively. The largest series found that, in patients within Milan criteria, the GRWR was not associated with lower oncological outcomes. However, patients with HCC outside the Milan criteria with a GRWR < 0.8% had lower survival and higher tumor recurrence rates. The GRWR < 0.8% appears to be associated with lower survival rates in HCC recipients, particularly for candidates with tumors outside established HCC criteria. Although the data are scarce, the results of this study suggest that considering the individual GRWR not only as risk factor for small-for-size-syndrome but also as contributor to HCC recurrence in patients undergoing LDLT would be beneficial. Novel perfusion technologies and pharmacological interventions may contribute to improving outcomes.
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Patel MS, Egawa H, Kwon YK, Chok KSH, Spiro M, Raptis DA, Vij V, Chaudhary A, Genyk Y. The role of graft to recipient weight ratio on enhanced recovery of the recipient after living donor liver transplantation - A systematic review of the literature and expert panel recommendations. Clin Transplant 2022; 36:e14630. [PMID: 35258108 DOI: 10.1111/ctr.14630] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 01/04/2022] [Revised: 01/01/2022] [Accepted: 02/28/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND There continues to be debate about the lower limit of graft-to-recipient weight ratio (GRWR) for living donor liver transplant (LDLT). OBJECTIVES To identify the lower limit of GRWR compatible with enhanced recovery after living donor liver transplant and to provide international expert panel recommendations. DATA SOURCES Ovid MEDLINE, Embase, Scopus, Google Scholar, and Cochrane Central. METHODS Systematic review following PRISMA guidelines and recommendations using the GRADE approach derived from an international expert panel. Studies assessing how GRWR affects recipient outcomes such as small for size syndrome, other complications, patient and graft survival, and length of stay were included. PROTOCOL REGISTRATION CRD42021260794. RESULTS Twenty articles were included in the qualitative synthesis, and all were retrospective observational studies. There was heterogeneity in the definition of study cohorts and key outcome measures such as small-for-size syndrome. Most studies lacked risk adjustment given limited single-center sample size. GRWR of ≥ .8% is associated with enhanced recovery. Recipients of grafts with GRWR < .8%, however, were found to have similar outcomes as those with ≥ .8% when appropriate consideration is made for portal flow modulation and recipient illness severity. CONCLUSIONS GRWR ≥ .8% is often compatible with enhanced recovery, but grafts < .8% can be used in selected LDLT recipients with optimal donor-recipient selection, surgical technique, and perioperative management (Quality of Evidence; Low | Grade of Recommendation; Strong).
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Affiliation(s)
- Madhukar S Patel
- Division of Surgical Transplantation, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Hiroto Egawa
- Department of Surgery, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan
| | - Yong Kyong Kwon
- Department of Surgery, Keck Medical Center of University of Southern California, Los Angles, California, USA
| | - Kenneth Siu Ho Chok
- Department of Surgery and State Key Laboratory for Liver Research, The University of Hong Kong, Hong Kong, China
| | - Michael Spiro
- Department of Anesthesia and Intensive Care Medicine, Royal Free Hospital, London, UK.,Division of Surgery & Interventional Science, University College London, London, UK
| | - Dimitri Aristotle Raptis
- Division of Surgery & Interventional Science, University College London, London, UK.,Clinical Service of HPB Surgery and Liver Transplantation, Royal Free Hospital, London, UK
| | - Vivek Vij
- Liver Transplant and Hepatobiliary Surgery, Fortis Hospital, Noida, UP, India
| | - Abhideep Chaudhary
- Department of HPB Surgery & Liver Transplant, BL Kapur Superspeciality Hospital, Delhi, India
| | - Yuri Genyk
- Department of Surgery, Keck Medical Center of University of Southern California, Los Angles, California, USA
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Li SX, Tang HN, Lv GY, Chen X. Pediatric living donor liver transplantation using liver allograft after ex vivo backtable resection of hemangioma: A case report. World J Clin Cases 2022; 10:3834-3841. [PMID: 35647153 PMCID: PMC9100736 DOI: 10.12998/wjcc.v10.i12.3834] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 10/25/2021] [Accepted: 03/06/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Use of liver allograft with hepatic hemangioma after in vivo resection of hemangioma in living donor liver transplantation (LDLT) has been previously reported. However, there are few reports describing ex vivo backtable resection of hemangioma from liver allografts in LDLT.
CASE SUMMARY A 55-year-old male was evaluated as a donor for an 8-month-year old patient with acute hepatic failure due to biliary atresia. Pre-operative contrast enhanced computed tomography revealed a 9 cm hemangioma in segment 4 with vascular variations in the donor. During LDLT, an intra-operative intrahepatic cholangiography was performed to ensure no variation in the anatomy of the intrahepatic bile duct. After intra-operative pathological diagnosis, ex vivo backtable resection of the hemangioma was performed and the liver allograft was transplanted into the recipient. The donor’s and recipient’s post-operative course were uneventful. At the 2-year follow-up, the liver allograft showed good regeneration without any recurrence of hemangioma.
CONCLUSION Liver allografts with hemangiomas are an acceptable alternative strategy for LDLT. Ex vivo backtable resection of hemangioma from the donor liver during pediatric LDLT is safe and feasible, and can effectively reduce the operative time and intra-operative bleeding for the donor.
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Affiliation(s)
- Shu-Xuan Li
- Department of Hepatobiliary and Pancreatic Surgery, the First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - He-Nan Tang
- Department of Hepatobiliary and Pancreatic Surgery, the First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Guo-Yue Lv
- Department of Hepatobiliary and Pancreatic Surgery, the First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Xuan Chen
- Department of Neurosurgery, the First Hospital of Jilin University, Changchun 130021, Jilin Province, China
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Sakai H, Duggan EM, Griesemer AD. Size Is Not Everything: "Small" Living Donor Liver Transplantation Grafts Can Have Good Outcomes. Transplantation 2021; 105:1917-8. [PMID: 33031225 DOI: 10.1097/TP.0000000000003473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
Preoperative cross-sectional imaging evaluation of potential living liver donors allows to exclude donors with an increased risk for morbidity and mortality, and to assure that a suitable graft for the recipient can be obtained, minimizing the risk of complications in both the donor and the recipient. CT is routinely performed to delineate the anatomy of the liver, relevant vasculature, and liver volumes in whole right or left lateral segment donation. MR imaging is the gold standard for the assessment of biliary anatomy and allows a better quantification of hepatic steatosis compared to CT. Knowledge of normal and variant vascular and biliary anatomy and their surgical relevance for liver transplantation is of paramount importance for the radiologist. The purpose of this review is to outline the current role of CT and MR imaging in the assessment of hepatic parenchyma, hepatic vascular anatomy, biliary anatomy, and hepatic volumetry in the potential living liver donor with short notes on acquisition protocols and the relevant reportable findings.
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Affiliation(s)
- Federica Vernuccio
- Department of Radiology, Duke University Medical Center, Durham, NC, 27710, USA.
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University Hospital of Palermo, Via del Vespro 129, 90127, Palermo, Italy.
- University of Paris, Paris, France.
- I.R.C.C.S. Centro Neurolesi Bonino Pulejo, Contrada Casazza, SS113, Messina, 98124, Italy.
| | - Susan A Whitney
- Multi-Dimensional Image Processing Lab at Duke Radiology, Duke University Medical Center, Durham, NC, 27705, USA
| | | | - Daniele Marin
- Department of Radiology, Duke University Medical Center, Durham, NC, 27710, USA
- Multi-Dimensional Image Processing Lab at Duke Radiology, Duke University Medical Center, Durham, NC, 27705, USA
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Abdallah A, Salman AA, Sholkamy AA, Salman MA, Omar MG, Youssef A, Ameen MA, Abdel Dayem AY, El-Din Shaaban H, Youssef OR, Allah NA, Abdelaty WR. Study of factors affecting Small for Size Syndrome Post-Adult living donor liver transplantation. Asian J Surg 2020; 44:452-458. [PMID: 33189526 DOI: 10.1016/j.asjsur.2020.10.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 10/13/2020] [Accepted: 10/23/2020] [Indexed: 12/13/2022] Open
Abstract
AIM Recently, increasing evidence showed that small-for-size syndrome (SFSS) is a multifactorial disease which is precipitated by various perioperative factors other than graft size. We conducted the current work to evaluate perioperative effectors, which can increase the risk of SFSS following adult living-donor liver transplantation (LDLT). METHODS This is a retrospective study on 110 adult cirrhotic cases (mean age of 48.4 ± 6.9 years old) who underwent adult LDLT. Most cases were males (89%). Cases were categorized into two groups based on the occurrence of SFSS. The groups were compared regarding preoperative (gender, age, comorbidities, baseline investigations), intraoperative (mean blood pressure and glucose; mean operation time; number of packed red cells, plasma, platelets, and cryoprecipitate units; time of cold and warm ischemia, and anhepatic phase; preclamping and post-reperfusion portal pressures), and postoperative factors (relevant investigations, hospital stay). RESULTS Postoperatively, 23 patients developed SFSS (20.9%). SFSS group had significantly lower preoperative graft recipient weight ratio (GRWR) (0.76 ± 0.1% versus 1.03 ± 0.15, respectively; p < 0.001), and elevated MELD scores (19 ± 2.1 versus 17.9 ± 4; p = 0.024). Preclamping and post-reperfusion portal pressures of ≥22.5 and 17.5 mmHg, exhibited a sensitivity of 95.7% and 91.3% and specificity of 87.4% and 88.9% respectively, for SFSS prediction. CONCLUSION SFSS risk is significantly linked to GRWR, MELD score, and intraoperative portal haemodynamics. Intraoperative portal haemodynamics exhibited good diagnostic accuracy for SFSS prediction and represented promising indicators for the prediction of SFSS.
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Affiliation(s)
- Ahmed Abdallah
- General Surgery Department, Faculty of Medicine, Cairo University, Egypt.
| | | | | | | | - Mahmoud Gouda Omar
- Internal Medicine Department, Faculty of Medicine, Cairo University, Egypt.
| | - Ahmed Youssef
- Internal Medicine Department, Faculty of Medicine, Cairo University, Egypt.
| | - Mahmoud A Ameen
- General Surgery Department, Faculty of Medicine, Cairo University, Egypt.
| | | | | | - Ossama Ramzy Youssef
- Department of Anaesthesia and Intensive Care, Faculty of Medicine, Ain Shams University, Egypt.
| | - Nesrin Abd Allah
- Anatomy and Embryology Department, Faculty of Medicine, Menoufia University, Egypt.
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10
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van Dijk ABRM, Sneiders D, Murad SD, Polak WG, Hartog H. Disadvantage of Small (<60 kg) Adult Candidates on the Liver Transplantation Waitlist. Prog Transplant 2020; 30:349-354. [PMID: 32912082 DOI: 10.1177/1526924820958142] [Citation(s) in RCA: 1] [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: 12/13/2022]
Abstract
BACKGROUND Small adult patients with lower bodyweight wait-listed for liver transplantation may face a shortage of size-matched whole-liver grafts. The objective of this study is to compare time to transplantation in adult patients with a bodyweight of <60 kg to patients with bodyweight ≥60 kg. METHODS A matched case-control study was conducted. Patients aged 18 years and older listed for liver transplantation at our transplant center, from 2007 to 2016 with a bodyweight <60 kg were manually matched 1:2 to control patients ≥ 60 kg. Matching was performed based on ABO blood type, model for end-stage liver disease score, (non)-standard exception status, and eligibility for donation after cardiac death. Time to transplantation was assessed with univariable Cox-regression. RESULTS In total, 23 cases with a bodyweight < 60 kg were matched to 46 average-sized control patients. Small adults were significantly disadvantaged for receiving a liver transplantation as compared to their average-sized counterpart (hazard ratio 0.47; 95% confidence interval 0.29-0.75, P = .002). At the end of follow-up, 14/23 (60.9%) of cases versus 35/46 of controls (76.1%) had received a liver transplantation. CONCLUSION Small adults with a bodyweight below 60 kg are disadvantaged on the waitlist for a size-matched whole liver graft.
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Affiliation(s)
- Anne-Baue R M van Dijk
- Division of Hepatopancreatobiliary and Transplant Surgery, Department of Surgery, 6993Erasmus MC University Medical Center, Rotterdam, the Netherlands
| | - Dimitri Sneiders
- Division of Hepatopancreatobiliary and Transplant Surgery, Department of Surgery, 6993Erasmus MC University Medical Center, Rotterdam, the Netherlands
| | - Sarwa Darwish Murad
- Department of Gastroenterology and Hepatology, 6993Erasmus MC University Medical Center, Rotterdam, the Netherlands
| | - Wojciech G Polak
- Division of Hepatopancreatobiliary and Transplant Surgery, Department of Surgery, 6993Erasmus MC University Medical Center, Rotterdam, the Netherlands
| | - Hermien Hartog
- Division of Hepatopancreatobiliary and Transplant Surgery, Department of Surgery, 6993Erasmus MC University Medical Center, Rotterdam, the Netherlands
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Feng Y, Han Z, Wang X, Chen H, Li Y. Association of Graft-to-Recipient Weight Ratio with the Prognosis Following Liver Transplantation: a Meta-analysis. J Gastrointest Surg 2020; 24:1869-79. [PMID: 32306226 DOI: 10.1007/s11605-020-04598-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 04/06/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Studies indicate that low graft-to-recipient weight ratio (GRWR) affect graft survival in adult-to-adult living donor liver transplantation. However, the potential role of GRWR in the prognosis of patients following living donor liver transplantation according to patient characteristics remains controversial. This study aimed to update the role of GRWR in patients following living donor liver transplantation. METHODS PubMed, Embase, and Cochrane Library were comprehensively searched for studies comparing low GRWR (< 0.8%) with normal GRWR (≥ 0.8%) in the prognosis following living donor liver transplantation from inception to March 2019. The 1-, 3-, and 5-year summary survival rates, small-for-size syndrome (SFSS), perioperative mortality, biliary complications, postoperative bleeding, and acute rejection were calculated using the random-effects model. RESULTS Eighteen studies comprising 4001 patients were included. Patients with low GRWR were associated with lower 1-year and 3-year survival rates compared to patients with normal GRWR, while no significant difference was found in the association of 5-year survival rate with low and normal GRWRs. Moreover, the risk of SFSS significantly increased in patients with low GRWR. Finally, no significant differences were observed in the association of low and normal GRWRs with the risk of perioperative mortality, biliary complications, postoperative bleeding, and acute rejection. CONCLUSION The results of this study indicated that low GRWR was associated with poor prognosis for patients following living donor liver transplantation, especially in terms of 1- and 3-year survival rates and SFSS.
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Orue-Echebarria MI, Lozano P, Olmedilla L, García Sabrido JL, Asencio JM. "Small-for-Flow" Syndrome: Concept Evolution. J Gastrointest Surg 2020; 24:1386-91. [PMID: 32314232 DOI: 10.1007/s11605-020-04576-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 03/16/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND The "Small-for-Size" syndrome is defined as a liver failure after a liver transplant with a reduced graft or after a major hepatectomy. The later coined "Small-for-Flow" syndrome describes the same situation in liver resections but based on hemodynamic intraoperative parameters (portal pressure > 20 mmHg and/or portal flow > 250 ml/min/100 g). This focuses on the damage caused by the portal hyperafflux related to the volume of the remnant. METHODS Relevant studies were reviewed using Medline, PubMed, and Springer databases. RESULTS Portal hypertension after partial hepatectomies also leads to a higher morbidity and mortality. There are plenty of experimental studies focusing on flow rather than size. Some of them also perform different techniques to modulate the portal inflow. The deleterious effect of high posthepatectomy portal venous pressure is known, and that is why the idea of portal flow modulation during major hepatectomies in humans is increasing in everyday clinical practice. CONCLUSIONS Considering the extensive knowledge obtained with the experimental models and good results in clinical studies that analyze the "Small-for-Flow" syndrome, we believe that measuring portal flow and portal pressure during major liver resections should be performed routinely in extended liver resections. Applying these techniques, the knowledge of hepatic hemodynamics would be improved in order to advance against posthepatectomy liver failure.
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Wong TC, Fung JYY, Cui TYS, Sin SL, Ma KW, She BWH, Chan ACY, Chok KSH, Dai JWC, Cheung TT, Lo CM. The Risk of Going Small: Lowering GRWR and Overcoming Small-For-Size Syndrome in Adult Living Donor Liver Transplantation. Ann Surg 2020. [PMID: 32209906 DOI: 10.1097/SLA.0000000000003824] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The aim of this study was to determine the outcomes of living donor liver transplantation (LDLT) according to various graft-to-recipient weight ratio (GRWR). BACKGROUND The standard GRWR in LDLT is >0.8%. Our center accepted predicted GRWR ≥0.6% in selected patients. METHODS Data from patients who underwent LDLT from 2001 to 2017 were included. Patients were stratified according to actual GRWR (Group 1:GRWR ≤0.6%; Group 2: 0.6%<GRWR≤ 0.8%; Group 3:GRWR >0.8%). RESULTS There were 545 LDLT (group 1 = 39; group 2 = 159; group 3 = 347) performed. Pretransplant predicted GRWR showed good correlation to actual GRWR (R = 0.834) and these figures differed within a ± 10%margin (P = 0.034) using an equivalence test. There were more left lobe grafts in group 1 (33.3%) than group 2 (10.7%) and 3 (2.9%). Median donor age was <35 years and steatosis >10% was rare.There was no difference in postoperative complication, vascular and biliary complication rate between groups. Over one-fifth (20.5%) of group 1 patients required portal flow modulation (PFM) and was higher than group 2 (3.1%) and group 3 (4%) (P = 0.001). Twenty-six patients developed small-for-size syndrome (SFSS): 5 of 39 (12.8%) in group 1 and 21 of 159 (13.2%) in group 2 and none in group 3 (P < 0.001). There were 2 hospital mortalities; otherwise, the remaining patients [24/26 (92.3%)] survive with a functional liver graft. The 5-year graft survival rates were 85.4% versus 87.8% versus 84.7% for group 1, 2, and 3, respectively (P = 0.718). GRWR did not predict worse survivals in multivariable analysis. CONCLUSIONS Graft size in LDLT can be lowered to 0.6% after careful recipient selection, with low incidence of SFSS and excellent outcomes. Accurate graft weight prediction, donor-recipient matching, meticulous surgical techniques, appropriate use of PFM, and vigilant perioperative care is important to the success of such approach.
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Agarwal S, Selvakumar N, Rajasekhar K, Dey R, Verma S, Gupta S. Minimum absolute graft weight of 650 g predicts a good outcome in living donor liver transplant despite a graft recipient body weight ratio of less than 0.8. Clin Transplant 2019; 33:e13705. [DOI: 10.1111/ctr.13705] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 06/06/2019] [Accepted: 08/18/2019] [Indexed: 02/07/2023]
Affiliation(s)
- Shaleen Agarwal
- Centre for Liver and Biliary Sciences Max Superspeciality Hospital Saket India
| | | | | | - Rajesh Dey
- Centre for Liver and Biliary Sciences Max Superspeciality Hospital Saket India
| | - Sapana Verma
- Centre for Liver and Biliary Sciences Max Superspeciality Hospital Saket India
| | - Subhash Gupta
- Centre for Liver and Biliary Sciences Max Superspeciality Hospital Saket India
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Yan Y, Zheng DF, Pu JL, Wu ZJ. Outcomes of adult patients adopting small-for-size grafts in living donor liver transplantation: A systematic review and meta-analysis. Hepatobiliary Pancreat Dis Int 2019; 18:206-13. [PMID: 30952435 DOI: 10.1016/j.hbpd.2019.03.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Accepted: 03/21/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Small-for-size graft (SFSG) has emerged as one of the very contentions in adult-to-adult living donor liver transplantation (LDLT) as a certain graft size is related to recipients' prognosis. Graft-to-recipient weight ratio (GRWR) ≥0.8% was considered as a threshold to conduct LDLT. However, this also has been challenged over decades as a result of technique refinements. For a better understanding of SFSG in practice, we conducted this meta-analysis to compare the perioperative outcomes and long-term outcomes between patients adopting the grafts with a lower volume (GRWR < 0.8%, SFSG group) and sufficient volume (GRWR ≥ 0.8%, non-SFSG group) in adult-to-adult LDLT. DATA SOURCES The studies comparing recipients adopting graft with a GRWR < 0.8% and ≥ 0.8% were searched by three authors independently in PubMed, Web of Science, Embase, the Cochrane Library, MEDLINE and Google Scholar databases until September 2018 and data were analyzed by RevMan 5.3.5. RESULTS Sixteen studies with a total of 3272 subjects were included in this meta-analysis. In terms of small-for-size syndrome (SFSS), no significant difference was found in subjects enrolled after year 2010 (before 2010, OR=3.00, 95% CI: 1.69-5.35, P = 0.0002; after 2010, OR=1.23, 95% CI: 0.79-1.90, P = 0.36; P for interaction: 0.02). There was no significant difference in operative duration, blood loss, cold ischemia time, biliary complications, acute rejection, postoperative bleeding, hospitalization time, perioperative mortality, and 1-, 3- and 5-year overall survival rates between two groups. CONCLUSIONS This meta-analysis suggested that adopting SFSG in adult LDLT has comparable outcomes to those with non-SFSG counterparts since 2010.
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Doshi SD, Wood L, Abt PL, Olthoff KM, Shaked A, Goldberg DS, Bittermann T. Outcomes of Living-donor Liver Transplantation Using Grafts Heterozygous for α-1 Antitrypsin Gene Mutations. Transplantation 2019; 103:1175-80. [DOI: 10.1097/tp.0000000000002493] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Lee TY, Chen TW, Wang CW, Hsieh CB, Fan HL. Designing Triple Adult Liver Grafts From an Ideal Deceased Liver. Transplant Proc 2018; 50:3100-3104. [PMID: 30577173 DOI: 10.1016/j.transproceed.2018.08.019] [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: 07/27/2018] [Accepted: 08/16/2018] [Indexed: 11/26/2022]
Abstract
Splitting deceased donor livers and creating 3 grafts from a whole liver may be feasible and shorten the waiting time for organ donation in patients with high mortality rates. We hypothesized that it might be reasonable to procure 3 grafts for donation from one deceased donor liver by splitting the liver into left (segment II, III, IV), right anterior (segment V, VIII), and right posterior lobes (segment VI, VII) for liver transplantation according to the portal system trifurcated variations. We designed the right anterior branch with the main portal trunk and middle hepatic artery to become inflow of right anterior lobe, the left portal vein and left hepatic artery to become the inflow of left lobe and right posterior branch, and right hepatic artery to become the inflow of right posterior lobe. We retrospectively reviewed the volumetric computed tomography and magnetic resonance cholangiopancreatography of 153 liver donors. The hepatic and portal veins, hepatic artery, and biliary system were reorganized and classified. The volumetric proportions of the liver grafts were measured. Trifurcation of the portal vein variation was found in approximately 13.7% of portal systemic variations. The left lobe accounted for 29.18% of the total liver volume, the right anterior lobe, 35.22%, and the right posterior lobe, 35.6%. We validated this principle by dissecting the explanted liver and identified the triple grafts' weights, percentages, vessels, and biliary ducts system. The splitting of deceased donor livers into 3 split liver grafts for use in liver transplantation surgery can be clinically useful.
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Affiliation(s)
- T-Y Lee
- Division of General Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - T-W Chen
- Division of General Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - C-W Wang
- Division of Plastic Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - C-B Hsieh
- Division of General Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - H-L Fan
- Division of General Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC.
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