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Ji J, Mi S, Hou Z, Zhang Z, Qiu G, Jin Z, Huang J. Impact of imaging-diagnosed sarcopenia on outcomes in patients with biliary tract cancer after surgical resection: a systematic review and meta-analysis. World J Surg Oncol 2024; 22:229. [PMID: 39218917 PMCID: PMC11367777 DOI: 10.1186/s12957-024-03516-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Accepted: 08/27/2024] [Indexed: 09/04/2024] Open
Abstract
BACKGROUND AND AIMS Sarcopenia has been associated with poor prognosis in patients with malignant tumors. However, its impact on the outcomes of patients with biliary tract cancer (BTC) undergoing surgical resection remains unclear and warrants further review. This study aims to summarize the available evidence on this issue. METHODS A systematic search was conducted in PubMed, Embase, Web of Science, and the Cochrane Library for eligible studies up to March 10, 2024. We extracted data on overall survival (OS), recurrence free survival (RFS), and postoperative major complications from the included studies as the outcomes of interest. Following data synthesis and analysis, we assessed the heterogeneity and performed subgroup analyses. Additionally, the potential for publication bias was evaluated. RESULTS A total of 26 studies involving 4292 BTC patients were ultimately retrieved. The findings indicated that sarcopenia was significantly associated with reduced OS in BTC patients after surgery (adjusted HR: 2.03, 95% CI: 1.65-2.48, P < 0.001, I2 = 57.4%). Moreover, sarcopenia may also be linked to poorer RFS (adjusted HR: 2.15, 95% CI: 1.79-2.59, P < 0.001, I2 = 0%) and increased postoperative major complications (OR: 1.22, 95% CI 1.02-1.47, P = 0.033, I2 = 29.2%) as well. Notably, no significant publication bias was detected through funnel plots and Egger's tests. CONCLUSION Sarcopenia is associated with poorer OS in BTC patients following surgery. Additionally, it may serve as a prognostic indicator for poorer RFS and increased postoperative major complications. Further studies are warrant to standardize existing definitions and validate these findings.
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Affiliation(s)
- Jun Ji
- Division of Liver Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Shizheng Mi
- Division of Liver Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Ziqi Hou
- Division of Liver Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zhihong Zhang
- Division of Liver Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Guoteng Qiu
- Division of Liver Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zhaoxing Jin
- Division of Liver Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jiwei Huang
- Division of Liver Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China.
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Giakoustidis A, Papakonstantinou M, Chatzikomnitsa P, Gkaitatzi AD, Bangeas P, Loufopoulos PD, Louri E, Myriskou A, Moschos I, Antoniadis D, Giakoustidis D, Papadopoulos VN. The Effects of Sarcopenia on Overall Survival and Postoperative Complications of Patients Undergoing Hepatic Resection for Primary or Metastatic Liver Cancer: A Systematic Review and Meta-Analysis. J Clin Med 2024; 13:3869. [PMID: 38999435 PMCID: PMC11242440 DOI: 10.3390/jcm13133869] [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: 06/04/2024] [Revised: 06/26/2024] [Accepted: 06/28/2024] [Indexed: 07/14/2024] Open
Abstract
Background: Colorectal cancer is the third most common cancer worldwide, and 20-30% of patients will develop liver metastases (CRLM) during their lifetime. Hepatocellular carcinoma (HCC) is also one of the most common cancers worldwide with increasing incidence. Hepatic resection represents the most effective treatment approach for both CRLM and HCC. Recently, sarcopenia has gained popularity as a prognostic index in order to assess the perioperative risk of hepatectomies. The aim of this study is to assess the effects of sarcopenia on the overall survival (OS), complication rates and mortality of patients undergoing liver resections for HCC or CRLM. Methods: A systematic literature search was performed for studies including patients undergoing hepatectomy for HCC or CRLM, and a meta-analysis of the data was performed. Results: Sarcopenic patients had a significantly lower 5-year OS compared to non-sarcopenic patients (43.8% vs. 63.6%, respectively; p < 0.01) and a significantly higher complication rate (35.4% vs. 23.1%, respectively; p = 0.002). Finally, no statistical correlation was found in mortality between sarcopenic and non-sarcopenic patients (p > 0.1). Conclusions: Sarcopenia was significantly associated with decreased 5-year OS and increased morbidity, but no difference was found with regard to postoperative mortality.
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Affiliation(s)
- Alexandros Giakoustidis
- A’ Department of Surgery, General Hospital Papageorgiou, School of Medicine, Faculty of Medical Sciences, Aristotle University of Thessaloniki, 56429 Thessaloniki, Greece; (M.P.); (P.C.); (A.D.G.); (P.B.); (P.D.L.); (E.L.); (A.M.); (D.G.); (V.N.P.)
| | - Menelaos Papakonstantinou
- A’ Department of Surgery, General Hospital Papageorgiou, School of Medicine, Faculty of Medical Sciences, Aristotle University of Thessaloniki, 56429 Thessaloniki, Greece; (M.P.); (P.C.); (A.D.G.); (P.B.); (P.D.L.); (E.L.); (A.M.); (D.G.); (V.N.P.)
| | - Paraskevi Chatzikomnitsa
- A’ Department of Surgery, General Hospital Papageorgiou, School of Medicine, Faculty of Medical Sciences, Aristotle University of Thessaloniki, 56429 Thessaloniki, Greece; (M.P.); (P.C.); (A.D.G.); (P.B.); (P.D.L.); (E.L.); (A.M.); (D.G.); (V.N.P.)
| | - Areti Danai Gkaitatzi
- A’ Department of Surgery, General Hospital Papageorgiou, School of Medicine, Faculty of Medical Sciences, Aristotle University of Thessaloniki, 56429 Thessaloniki, Greece; (M.P.); (P.C.); (A.D.G.); (P.B.); (P.D.L.); (E.L.); (A.M.); (D.G.); (V.N.P.)
| | - Petros Bangeas
- A’ Department of Surgery, General Hospital Papageorgiou, School of Medicine, Faculty of Medical Sciences, Aristotle University of Thessaloniki, 56429 Thessaloniki, Greece; (M.P.); (P.C.); (A.D.G.); (P.B.); (P.D.L.); (E.L.); (A.M.); (D.G.); (V.N.P.)
| | - Panagiotis Dimitrios Loufopoulos
- A’ Department of Surgery, General Hospital Papageorgiou, School of Medicine, Faculty of Medical Sciences, Aristotle University of Thessaloniki, 56429 Thessaloniki, Greece; (M.P.); (P.C.); (A.D.G.); (P.B.); (P.D.L.); (E.L.); (A.M.); (D.G.); (V.N.P.)
| | - Eleni Louri
- A’ Department of Surgery, General Hospital Papageorgiou, School of Medicine, Faculty of Medical Sciences, Aristotle University of Thessaloniki, 56429 Thessaloniki, Greece; (M.P.); (P.C.); (A.D.G.); (P.B.); (P.D.L.); (E.L.); (A.M.); (D.G.); (V.N.P.)
| | - Athanasia Myriskou
- A’ Department of Surgery, General Hospital Papageorgiou, School of Medicine, Faculty of Medical Sciences, Aristotle University of Thessaloniki, 56429 Thessaloniki, Greece; (M.P.); (P.C.); (A.D.G.); (P.B.); (P.D.L.); (E.L.); (A.M.); (D.G.); (V.N.P.)
| | - Ioannis Moschos
- International Hellenic University, 56429 Thessaloniki, Greece;
| | - Diomidis Antoniadis
- School of Medicine, Aristotle University of Thessaloniki, 56429 Thessaloniki, Greece;
| | - Dimitrios Giakoustidis
- A’ Department of Surgery, General Hospital Papageorgiou, School of Medicine, Faculty of Medical Sciences, Aristotle University of Thessaloniki, 56429 Thessaloniki, Greece; (M.P.); (P.C.); (A.D.G.); (P.B.); (P.D.L.); (E.L.); (A.M.); (D.G.); (V.N.P.)
| | - Vasileios N. Papadopoulos
- A’ Department of Surgery, General Hospital Papageorgiou, School of Medicine, Faculty of Medical Sciences, Aristotle University of Thessaloniki, 56429 Thessaloniki, Greece; (M.P.); (P.C.); (A.D.G.); (P.B.); (P.D.L.); (E.L.); (A.M.); (D.G.); (V.N.P.)
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Kim HI, Kim KJ, Kim S, Kim HD, Kim SH. Association between preoperative lumbar skeletal muscle index and postoperative nausea and vomiting in patients undergoing pylorus-preserving pancreatoduodenectomy: a retrospective study. Anesth Pain Med (Seoul) 2024; 19:161-168. [PMID: 38725172 PMCID: PMC11089290 DOI: 10.17085/apm.23142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 02/02/2024] [Accepted: 02/11/2024] [Indexed: 05/15/2024] Open
Abstract
BACKGROUND Sarcopenia is associated with postoperative complications; however, its impact on the quality of postoperative recovery, such as postoperative nausea and vomiting (PONV) and pain, remains unclear. We investigated the association of preoperative lumbar skeletal muscle mass index (LSMI) with PONV, postoperative pain, and complications. METHODS Medical records of 756 patients who underwent pylorus-preserving pancreatoduodenectomy (PPPD) were retrospectively reviewed. The skeletal muscle areas were measured on abdominal computed tomography (CT) images. LSMI was calculated by dividing the skeletal muscle area by the square of the patient's height. We analyzed the correlations between preoperative LSMI calibrated with confounding variables and PONV scores, PONV occurrence, pain scores, rescue analgesic administration, postoperative complications, and length of hospital stay. RESULTS The median (1Q, 3Q) LSMI was 47.72 (40.74, 53.41) cm2/m2. The incidence rates of PONV according to time period were as follows: post-anesthesia care unit, 42/756 (5.6%); 0-6 h, 54/756 (7.1%); 6-24 h, 120/756 (15.9%); 24-48 h, 46/756 (6.1%); and overall, 234/756 (31.0%). The incidence of PONV was inversely correlated with LSMI 24-48 h post-surgery and overall. LSMI and PONV scores were negatively associated 6-24 h and 24-48 h post-surgery. There was no association between LSMI and postoperative pain scores, rescue analgesic administration, complications, or length of hospital stay. CONCLUSIONS Preoperative LSMI was associated with PONV in patients undergoing PPPD. Therefore, LSMI measured on preoperative abdominal CT can be a predictive indicator of PONV. Appropriate PONV prophylaxis is necessary in patients with low LSMI before PPPD.
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Affiliation(s)
- Hyun Il Kim
- Department of Anesthesiology and Pain Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Ki Jun Kim
- Department of Anesthesiology and Pain Medicine, Severance Hospital, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Sangil Kim
- Department of Anesthesiology and Pain Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Hae Dong Kim
- Department of Anesthesiology and Pain Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Seung Hyun Kim
- Department of Anesthesiology and Pain Medicine, Severance Hospital, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
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He J, Huang Y, Huang N, Jiang J. Prevalence and predictive value of sarcopenia in surgically treated cholangiocarcinoma: a comprehensive review and meta-analysis. Front Oncol 2024; 14:1363843. [PMID: 38571501 PMCID: PMC10989063 DOI: 10.3389/fonc.2024.1363843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Accepted: 02/27/2024] [Indexed: 04/05/2024] Open
Abstract
Background Sarcopenia, marked by a reduction in skeletal muscle mass and function, is a condition that can manifest in elderly patients with cancer and has been recognized as a possible adverse factor affecting the survival of individuals diagnosed with malignant tumors. This systematic review and meta-analysis aimed to examine the prevalence of sarcopenia in individuals with cholangiocarcinoma while concurrently investigating the potential correlations between the presence of sarcopenia and various critical factors, including survival outcomes and postoperative complications. Methods A comprehensive search was conducted across multiple databases, including EMBASE, PubMed, Web of Science, Cochrane Library, and CNKI, employing keywords such as sarcopenia, cholangiocarcinoma, and prognosis. This research explored the prognostic value of sarcopenia on the survival of cholangiocarcinoma. The findings of this meta-analysis were presented using forest plots and a summarized effects model. The Newcastle-Ottawa Scale (NOS) was employed to evaluate the quality of the studies included in the analysis. Results A total of 33 articles from five databases were in in the quantitative analysis. A comprehensive meta-analysis revealed that the overall prevalence of sarcopenia among individuals diagnosed with cholangiocarcinoma was43%. Moreover, the analysis revealed a significant and noteworthy correlation between sarcopenia and key clinical parameters such as overall survival (OS), Recurrence-Free Survival (RFS), and Disease-Free Survival (DFS) in patients with cholangiocarcinoma. Subgroup analysis revealed that, when categorized by various ethnicities, diagnostic techniques, and tumor locations, sarcopenia consistently retained its status as a negative predictive factor. Furthermore, sarcopenia has emerged as a risk factor for postoperative complications. All included studies had an NOS score greater than 5, indicating a high quality of evidence. Conclusion The results suggest that sarcopenia is significantly related to survival outcomes and postoperative complications in cholangiocarcinoma. Appropriate diagnosis and treatment of sarcopenia should be implemented to improve the prognosis of individuals with cholangiocarcinoma. Systematic Review Registration https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42023479866, identifier CRD42023479866.
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Affiliation(s)
- Jie He
- Clinical Medical College of Chengdu Medical College, Chengdu, Sichuan, China
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China
| | - Yuanyuan Huang
- Clinical Medical College of Chengdu Medical College, Chengdu, Sichuan, China
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China
| | - Na Huang
- Clinical Medical College of Chengdu Medical College, Chengdu, Sichuan, China
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China
| | - Jiaqing Jiang
- Clinical Medical College of Chengdu Medical College, Chengdu, Sichuan, China
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Wang G, Mantas A, Heij LR, Al‐Masri TM, Liu D, Heise D, Schmitz SM, Olde Damink SWM, Luedde T, Lang SA, Ulmer TF, Neumann UP, Bednarsch J. Body composition is associated with postoperative complications in perihilar cholangiocarcinoma. Cancer Med 2024; 13:e6878. [PMID: 38164056 PMCID: PMC10807576 DOI: 10.1002/cam4.6878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/11/2023] [Accepted: 12/13/2023] [Indexed: 01/03/2024] Open
Abstract
BACKGROUND Perihilar cholangiocarcinoma (pCCA) is a malignant tumor of the hepatobiliary system which is still associated with a challenging prognosis. Postoperative complications play a crucial role in determining the overall prognosis of patients with pCCA. Changes in body composition (BC) have been shown to impact the prognosis of various types of tumors. Therefore, our study aimed to investigate the correlation between BC, postoperative complications and oncological outcome in patients with pCCA. METHODS All patients with pCCA who underwent curative-intent surgery for pCCA between 2010 and 2022 were included in this analysis. BC was assessed using preoperative computed tomography and analyzed with the assistance of a 3D Slicer software. Univariate and multivariate binary logistic regression analyses were conducted to examine the relationship between BC and clinical characteristics including various measurements of postoperative complications and Cox regressions and Kaplan-Meier analysis to evaluate oncological risk factors in the study cohort. RESULTS BC was frequently altered in patients undergoing curative-intent liver resection for pCCA (n = 204) with 52.5% of the patients showing obesity, 55.9% sarcopenia, 21.6% sarcopenic obesity, 48.5% myosteatosis, and 69.1% visceral obesity. In multivariate analysis, severe postoperative complications (Clavien-Dindo ≥3b) were associated with body mass index (BMI) (Odds ratio (OR) = 2.001, p = 0.024), sarcopenia (OR = 2.145, p = 0.034), and myosteatosis (OR = 2.097, p = 0.017) as independent predictors. Furthermore, sarcopenia was associated with reduced overall survival (OS) in pCCA patients (sarcopenia vs. no-sarcopenia, 21 months vs. 32 months, p = 0.048 log rank). CONCLUSIONS BC is highly associated with severe postoperative complications in patients with pCCA and shows tendency to be associated impaired overall survival. Preoperative assessment of BC and interventions to improve BC might therefore be key to improve outcome in pCCA patients undergoing surgical therapy.
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Affiliation(s)
- Guanwu Wang
- Department of Surgery and TransplantationUniversity Hospital RWTH AachenAachenGermany
| | - Anna Mantas
- Department of Surgery and TransplantationUniversity Hospital RWTH AachenAachenGermany
- University of Applied Science AachenAachenGermany
| | - Lara R. Heij
- Department of Surgery and TransplantationUniversity Hospital RWTH AachenAachenGermany
- Department of Surgery and TransplantationUniversity Hospital EssenEssenGermany
| | - Tarick M. Al‐Masri
- Department of Surgery and TransplantationUniversity Hospital RWTH AachenAachenGermany
- University of Applied Science AachenAachenGermany
| | - Dong Liu
- Department of Surgery and TransplantationUniversity Hospital RWTH AachenAachenGermany
| | - Daniel Heise
- Department of Surgery and TransplantationUniversity Hospital RWTH AachenAachenGermany
- Department of Surgery and TransplantationUniversity Hospital EssenEssenGermany
| | - Sophia M. Schmitz
- Department of Surgery and TransplantationUniversity Hospital RWTH AachenAachenGermany
- Department of Surgery and TransplantationUniversity Hospital EssenEssenGermany
| | | | - Tom Luedde
- Department of Gastroenterology, Hepatology and Infectious DiseasesHeinrich Heine University DuesseldorfDuesseldorfGermany
| | - Sven A. Lang
- Department of Surgery and TransplantationUniversity Hospital RWTH AachenAachenGermany
- Department of Surgery and TransplantationUniversity Hospital EssenEssenGermany
| | - Tom F. Ulmer
- Department of Surgery and TransplantationUniversity Hospital RWTH AachenAachenGermany
| | - Ulf P. Neumann
- Department of Surgery and TransplantationUniversity Hospital RWTH AachenAachenGermany
- Department of Surgery and TransplantationUniversity Hospital EssenEssenGermany
- Department of SurgeryMaastricht University Medical Centre (MUMC)MaastrichtThe Netherlands
| | - Jan Bednarsch
- Department of Surgery and TransplantationUniversity Hospital RWTH AachenAachenGermany
- Department of Surgery and TransplantationUniversity Hospital EssenEssenGermany
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Wang G, Otto CC, Heij LR, Al-Masri TM, Dahl E, Heise D, Olde Damink SWM, Luedde T, Lang SA, Ulmer TF, Neumann UP, Bednarsch J. Impact of Altered Body Composition on Clinical and Oncological Outcomes in Intrahepatic Cholangiocarcinoma. J Clin Med 2023; 12:7747. [PMID: 38137817 PMCID: PMC10744221 DOI: 10.3390/jcm12247747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 12/07/2023] [Accepted: 12/13/2023] [Indexed: 12/24/2023] Open
Abstract
Intrahepatic cholangiocarcinoma is a common primary liver tumor with limited treatment options and poor prognosis. Changes in body composition (BC) have been shown to affect the prognosis of various types of tumors. Therefore, our study aimed to investigate the correlation between BC and clinical and oncological outcomes in patients with iCCA. All patients with iCCA who had surgery from 2010 to 2022 at our institution were included. We used CT scans and 3D Slicer software to assess BC and conducted logistic regressions as well as Cox regressions and Kaplan-Meier analyses to investigate associations between BC and clinical variables with focus on postoperative complications and oncological outcomes. BC was frequently altered in iCCA (n = 162), with 53.1% of the patients showing obesity, 63.2% sarcopenia, 52.8% myosteatosis, 10.1% visceral obesity, and 15.3% sarcopenic obesity. The multivariate analysis showed no meaningful association between BC and perioperative complications. Myosteatosis was associated with reduced overall survival (OS) in iCCA patients (myosteatosis vs. non-myosteatosis, 7 vs. 18 months, p = 0.016 log rank). Further, the subgroup analysis revealed a notable effect in the subset of R0-resected patients (myosteatosis vs. non-myosteatosis, 18 vs. 32 months, p = 0.025) and patients with nodal metastases (myosteatosis vs. non-myosteatosis, 7 vs. 18 months, p = 0.016). While altered BC is not associated with perioperative outcomes in iCCA, myosteatosis emerges as a prognostic factor for reduced OS in the overall and sub-populations of resected patients.
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Affiliation(s)
- Guanwu Wang
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, 52074 Aachen, Germany; (G.W.); (C.C.O.); (L.R.H.); (T.M.A.-M.); (D.H.); (S.A.L.); (T.F.U.); (U.P.N.)
| | - Carlos C. Otto
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, 52074 Aachen, Germany; (G.W.); (C.C.O.); (L.R.H.); (T.M.A.-M.); (D.H.); (S.A.L.); (T.F.U.); (U.P.N.)
- Department of Surgery and Transplantation, University Hospital Essen, 45147 Essen, Germany
| | - Lara R. Heij
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, 52074 Aachen, Germany; (G.W.); (C.C.O.); (L.R.H.); (T.M.A.-M.); (D.H.); (S.A.L.); (T.F.U.); (U.P.N.)
- Department of Surgery and Transplantation, University Hospital Essen, 45147 Essen, Germany
| | - Tarick M. Al-Masri
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, 52074 Aachen, Germany; (G.W.); (C.C.O.); (L.R.H.); (T.M.A.-M.); (D.H.); (S.A.L.); (T.F.U.); (U.P.N.)
- University of Applied Science Aachen, 52066 Aachen, Germany
| | - Edgar Dahl
- Institute of Pathology, University Hospital RWTH Aachen, 52074 Aachen, Germany;
| | - Daniel Heise
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, 52074 Aachen, Germany; (G.W.); (C.C.O.); (L.R.H.); (T.M.A.-M.); (D.H.); (S.A.L.); (T.F.U.); (U.P.N.)
- Department of Surgery and Transplantation, University Hospital Essen, 45147 Essen, Germany
| | - Steven W. M. Olde Damink
- Department of Surgery, Maastricht University Medical Centre (MUMC), 6229 HX Maastricht, The Netherlands;
| | - Tom Luedde
- Department of Gastroenterology, Hepatology and Infectious Diseases, Heinrich Heine University Duesseldorf, 40225 Duesseldorf, Germany;
| | - Sven A. Lang
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, 52074 Aachen, Germany; (G.W.); (C.C.O.); (L.R.H.); (T.M.A.-M.); (D.H.); (S.A.L.); (T.F.U.); (U.P.N.)
- Department of Surgery and Transplantation, University Hospital Essen, 45147 Essen, Germany
| | - Tom F. Ulmer
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, 52074 Aachen, Germany; (G.W.); (C.C.O.); (L.R.H.); (T.M.A.-M.); (D.H.); (S.A.L.); (T.F.U.); (U.P.N.)
| | - Ulf P. Neumann
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, 52074 Aachen, Germany; (G.W.); (C.C.O.); (L.R.H.); (T.M.A.-M.); (D.H.); (S.A.L.); (T.F.U.); (U.P.N.)
- Department of Surgery and Transplantation, University Hospital Essen, 45147 Essen, Germany
- Department of Surgery, Maastricht University Medical Centre (MUMC), 6229 HX Maastricht, The Netherlands;
| | - Jan Bednarsch
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, 52074 Aachen, Germany; (G.W.); (C.C.O.); (L.R.H.); (T.M.A.-M.); (D.H.); (S.A.L.); (T.F.U.); (U.P.N.)
- Department of Surgery and Transplantation, University Hospital Essen, 45147 Essen, Germany
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