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Oikawa R, Ito K, Takemura N, Mihara F, Kokudo N. How to do it: rescue duct-to-duct biliary reconstruction techniques to avoid severe biliary complications of hepatic resection for hepatocellular carcinoma. Surg Today 2024; 54:387-395. [PMID: 37815642 DOI: 10.1007/s00595-023-02754-1] [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: 02/28/2023] [Accepted: 09/03/2023] [Indexed: 10/11/2023]
Abstract
There are few reports on duct-to-duct biliary reconstruction for complex liver resection with limited bile duct resection. We performed duct-to-duct biliary reconstruction in two patients undergoing limited bile duct resection where Roux-en-Y hepaticojejunostomy (HJ) was difficult. An external biliary drainage tube was placed routinely at the anastomotic site to prevent stenosis. In case 1, the tumor-infiltrated part of the left hepatic duct (LHD) was resected and the LHD was repaired using duct-to-duct reconstruction with interrupted sutures. In case 2, after the tumor-infiltrated part of the LHD and posterior hepatic duct (PHD) were resected, T-tube reconstruction was performed on the PHD, and the LHD was anastomosed using interrupted sutures for the posterior wall and a round ligament patch for the anterior wall. Our literature review suggests that an external biliary drainage tube with stenting over the anastomosis may reduce the risk of biliary complications.
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Affiliation(s)
- Ryo Oikawa
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655, Japan
| | - Kyoji Ito
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655, Japan
| | - Nobuyuki Takemura
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655, Japan.
| | - Fuminori Mihara
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655, Japan
| | - Norihiro Kokudo
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655, Japan
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Hosseiniasl SM, Felgendreff P, Tharwat M, Amiot B, AbuRmilah A, Minshew AM, Bornschlegl AM, Jalan-Sakrikar N, Smart M, Dietz AB, Huebert RC, Nyberg SL. Biodegradable biliary stents coated with mesenchymal stromal cells in a porcine choledochojejunostomy model. Cytotherapy 2023; 25:483-489. [PMID: 36842850 PMCID: PMC10399303 DOI: 10.1016/j.jcyt.2023.01.014] [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: 08/21/2022] [Revised: 01/25/2023] [Accepted: 01/27/2023] [Indexed: 02/27/2023]
Abstract
BACKGROUND AIMS Roux en y anastomosis is a preferred method of biliary reconstruction in liver transplantation that involves living donors or pediatric patients. However, biliary stricture is a frequent and serious complication, accounting for up to 40% of biliary complications in these patients. Previously, we demonstrated that extraluminal delivery of adipose-derived (AD) mesenchymal stromal cells (MSCs) decreased peri-biliary fibrosis and increased neo-angiogenesis in a porcine model of duct-to-duct biliary anastomosis. In this study, we used a porcine model of Roux en y anastomosis to evaluate the beneficial impact of a novel intraluminal MSC delivery system. METHODS Nine animals were divided into three groups: no stent (group 1), bare stent (group 2) and stent coated with AD-MSCs (group 3). All animals underwent cholecystectomy with roux en y choledochojejunostomy. Two animals per group were followed for 4 weeks and one animal per group was followed for 8 weeks. Cholangiograms and blood were sampled at baseline and the end of study. Biliary tissue was collected and examined by Masson trichrome staining and immunohistochemical staining for MSC markers (CD34 and CD44) and for neo-angiogenesis (CD31). RESULTS Two of three animals in group 1 developed an anastomotic site stricture. No strictures were observed in the animals of group 2 or group 3. CD34 and CD44 staining showed that AD-MSCs engrafted successfully at the anastomotic site by intraluminal delivery (group 3). Furthermore, biliary tissue from group 3 showed significantly less fibrosis and increased angiogenesis compared with the other groups. CONCLUSIONS Intraluminal delivery of AD-MSCs resulted in successful biliary engraftment of AD-MSCs as well as reduced peri-biliary fibrosis and increased neo-angiogenesis.
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Affiliation(s)
| | - Philipp Felgendreff
- Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA; Department for General, Visceral and Vascular Surgery, University Hospital Jena, Jena, Germany
| | - Mohammad Tharwat
- General Surgery Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Bruce Amiot
- Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA; William J. von Liebig Center for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, Minnesota, USA
| | - Anan AbuRmilah
- Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Anna M Minshew
- Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Alexander M Bornschlegl
- Department of Laboratory Medicine and Pathology, Mayo Clinic and Foundation, Rochester, Minnesota, USA
| | - Nidhi Jalan-Sakrikar
- Gastroenterology Research Unit, Mayo Clinic and Foundation, Rochester, Minnesota, USA
| | - Michele Smart
- Department of Laboratory Medicine and Pathology, Mayo Clinic and Foundation, Rochester, Minnesota, USA
| | - Allan B Dietz
- Department of Laboratory Medicine and Pathology, Mayo Clinic and Foundation, Rochester, Minnesota, USA
| | - Robert C Huebert
- William J. von Liebig Center for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, Minnesota, USA; Gastroenterology Research Unit, Mayo Clinic and Foundation, Rochester, Minnesota, USA; Division of Gastroenterology and Hepatology, Mayo Clinic and Foundation, Rochester, Minnesota, USA
| | - Scott L Nyberg
- Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA; William J. von Liebig Center for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, Minnesota, USA.
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Do We Need to Use a Stent in Biliary Reconstruction to Decrease the Incidence of Biliary Complications in Liver Transplantation? A Systematic Review and Meta-Analysis. J Gastrointest Surg 2023; 27:180-196. [PMID: 36376727 PMCID: PMC9877101 DOI: 10.1007/s11605-022-05479-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 08/20/2022] [Indexed: 11/15/2022]
Abstract
BACKGROUND AND AIM Biliary complications are a significant cause of morbidity post-transplantation, and the routine use of biliary stents in liver transplantation to reduce these complications remains controversial. This study aimed to compare the incidence of biliary complications with and without the use of trans anastomotic biliary stent in liver transplantation. METHOD PubMed, Scopes, Web of Science, and Cochrane library were searched for eligible studies from inception to February 2022, and a systematic review and meta-analysis were done to compare the incidence of biliary complications in the two groups. RESULTS Seventeen studies with a total of 2623 patients were included. The pooled results from the included studies showed an equal rate of biliary complications (i.e., strictures, leaks and cholangitis) in stented and non-stented patients after liver transplantation. However, the cost and biliary intervention rates are higher in stented patients. In addition to that, our sub-group analysis showed no significant decrease in the incidence of biliary complications after using trans anastomotic biliary stent in living donor liver transplant (LDLT), deceased donor liver transplant (DDLT), Roux-en-Y hepaticojejunostomy (RYHJ), and duct-to-duct anastomosis, pediatric, and adult liver transplantation. CONCLUSION No added benefit on the routine use of endobiliary stent in liver transplantation. However, stented patients are at higher risk of needing multiple ERCPs.
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Feasibility and Safety of ERCP in the Treatment of Biliary Strictures after Liver Transplantation: With a Report of 37 Cases. Gastroenterol Res Pract 2022; 2022:4498443. [PMID: 36052377 PMCID: PMC9427298 DOI: 10.1155/2022/4498443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 07/11/2022] [Indexed: 11/17/2022] Open
Abstract
Background. Liver transplantation (LT) is an effective treatment option for patients with end-stage liver disease; biliary complications are important cause of death in posttransplant patients. Endoscopic retrograde cholangiopancreatography (ERCP) has an irreplaceable role in the diagnosis and treatment of patients with biliary tract disease. Methods. The clinical data of patients with biliary strictures (BS) after LT treated with ERCP admitted to the Third Xiangya Hospital of Central South University from September 2016 to October 2021 were reviewed; the changes in temperature, bilirubin, and albumin before and after treatment and postoperative complications were analyzed. Results. A total of 41 patients were included in the study, and biliary stents were successfully placed in 37 cases (90.2%), while 4 cases (9.8%) were unsuccessful due to complete BS. Patients with ERCP guided biliary stenting had a significant improvement in bilirubin index compared to the preoperative period (
). 27 patients (73.0%) had complete relief of symptoms after 1 ERCP-guided treatment, and 10 patients (27.0%) developed BS again at different times after the first ERCP treatment, among which 8 patients developed BS again within 1 year after the first treatment and 2 patients developed BS again after 1 year after the first treatment. The incidence of endoscopy-related adverse events was 35.14%, with no serious adverse events. Conclusion. ERCP-guided biliary stenting was an effective and safety treatment for BS after LT.
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Girard E, Chagnon G, Moreau‐Gaudry A, Letoublon C, Favier D, Dejean S, Trilling B, Nottelet B. Evaluation of a biodegradable
PLA–PEG–PLA
internal biliary stent for liver transplantation: in vitro degradation and mechanical properties. J Biomed Mater Res B Appl Biomater 2020; 109:410-419. [DOI: 10.1002/jbm.b.34709] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 07/16/2020] [Accepted: 08/04/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Edouard Girard
- Univ. Grenoble Alpes, CNRS, Grenoble INP, CHU Grenoble Alpes, TIMC‐IMAG Grenoble France
- Département de chirurgie digestive et de l'urgence Centre Hospitalier Grenoble‐Alpes Grenoble France
| | - Grégory Chagnon
- Univ. Grenoble Alpes, CNRS, Grenoble INP, TIMC‐IMAG Grenoble France
| | - Alexandre Moreau‐Gaudry
- Univ. Grenoble Alpes, CNRS, Grenoble INP, CHU Grenoble Alpes, TIMC‐IMAG Grenoble France
- Univ. Grenoble Alpes, CNRS, Grenoble INP, TIMC‐IMAG Grenoble France
| | - Christian Letoublon
- Département de chirurgie digestive et de l'urgence Centre Hospitalier Grenoble‐Alpes Grenoble France
| | - Denis Favier
- Univ. Grenoble Alpes, CNRS, Grenoble INP, TIMC‐IMAG Grenoble France
| | - Stéphane Dejean
- IBMM Université de Montpellier, CNRS, ENSCM Montpellier France
| | - Bertrand Trilling
- Univ. Grenoble Alpes, CNRS, Grenoble INP, CHU Grenoble Alpes, TIMC‐IMAG Grenoble France
- Département de chirurgie digestive et de l'urgence Centre Hospitalier Grenoble‐Alpes Grenoble France
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Yoon YC, Etesami K, Kaur N, Emamaullee J, Kim J, Zielsdorf S, Ahearn A, Sher L, Genyk Y, Kwon YK. Biliary Internal Stents and Biliary Complications in Adult Liver Transplantation. Transplant Proc 2020; 53:171-176. [PMID: 32684369 DOI: 10.1016/j.transproceed.2020.06.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 05/17/2020] [Accepted: 06/04/2020] [Indexed: 12/25/2022]
Abstract
BACKGROUND Biliary complications in liver transplantation (LT) can cause significant morbidity or even lead to a potential graft loss and patient mortality. Oftentimes biliary internal stents (ISs) are used at the time of LT to lower the risk for or prevent these biliary complications; however, their efficacy and outcomes remain controversial. METHODS A retrospective cohort study was conducted on all of the adult patients who underwent a deceased-donor LT (DDLT) with an end-to-end choledococholedocostomy. An IS was placed across the biliary anastomosis, passing through the ampulla. We compared the demographic profiles and various outcomes between the 2 groups (no-IS group vs IS group) and examined risk factors associated with anastomotic biliary complications. RESULTS The study comprised 350 patients in the no-IS group and 132 patients in the IS group. Anastomotic biliary fistula (ABF) occurred in 5 (1.4%) and 1 (0.8%) patients in the no-IS group and the IS group, respectively (P = .55). Anastomotic biliary stricture (ABS) occurred in 53 (15.1%) and 18 (13.6%) patients, respectively (P = .68). No significant difference was found in the overall biliary complications between the 2 groups (P = .33). In multivariate logistic regression analysis, acute rejection was the only risk factor for ABS (P = .02). One biliary complication-induced mortality occurred in the no-IS group in which the patient died of an ABF-induced hepatic artery pseudoaneurysm rupture. CONCLUSION The use of biliary ISs in DDLT did not reduce the overall risk for biliary complications, but more research is needed to draw definite conclusions.
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Affiliation(s)
- Young Chul Yoon
- Division of Hepatobiliary, Pancreas, and Abdominal Organ Transplant, Department of Surgery, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Kambiz Etesami
- Division of Hepatobiliary, Pancreas, and Abdominal Organ Transplant, Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, United States
| | - Navpreet Kaur
- Division of Hepatobiliary, Pancreas, and Abdominal Organ Transplant, Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, United States
| | - Juliet Emamaullee
- Division of Hepatobiliary, Pancreas, and Abdominal Organ Transplant, Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, United States
| | - Jim Kim
- Division of Hepatobiliary, Pancreas, and Abdominal Organ Transplant, Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, United States
| | - Shannon Zielsdorf
- Division of Hepatobiliary, Pancreas, and Abdominal Organ Transplant, Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, United States
| | - Aaron Ahearn
- Division of Hepatobiliary, Pancreas, and Abdominal Organ Transplant, Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, United States
| | - Linda Sher
- Division of Hepatobiliary, Pancreas, and Abdominal Organ Transplant, Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, United States
| | - Yuri Genyk
- Division of Hepatobiliary, Pancreas, and Abdominal Organ Transplant, Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, United States
| | - Yong Kyong Kwon
- Division of Hepatobiliary, Pancreas, and Abdominal Organ Transplant, Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, United States.
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Girard E, Chagnon G, Broisat A, Dejean S, Soubies A, Gil H, Sharkawi T, Boucher F, Roth GS, Trilling B, Nottelet B. From in vitro evaluation to human postmortem pre-validation of a radiopaque and resorbable internal biliary stent for liver transplantation applications. Acta Biomater 2020; 106:70-81. [PMID: 32014582 DOI: 10.1016/j.actbio.2020.01.043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 01/24/2020] [Accepted: 01/28/2020] [Indexed: 12/17/2022]
Abstract
The implantation of an internal biliary stent (IBS) during liver transplantation has recently been shown to reduce biliary complications. To avoid a potentially morbid ablation procedure, we developed a resorbable and radiopaque internal biliary stent (RIBS). We studied the mechanical and radiological properties of RIBS upon in vivo implantation in rats and we evaluated RIBS implantability in human anatomical specimens. For this purpose, a blend of PLA50-PEG-PLA50 triblock copolymer, used as a polymer matrix, and of X-ray-visible triiodobenzoate-poly(ε-caprolactone) copolymer (PCL-TIB), as a radiopaque additive, was used to design X-ray-visible RIBS. Samples were implanted in the peritoneal cavity of rats. The radiological, chemical, and biomechanical properties were evaluated during degradation. Further histological studies were carried out to evaluate the degradation and compatibility of the RIBS. A human cadaver implantability study was also performed. The in vivo results revealed a decline in the RIBS mechanical properties within 3 months, whereas clear and stable X-ray visualization of the RIBS was possible for up to 6 months. Histological analyses confirmed compatibility and resorption of the RIBS, with a limited inflammatory response. The RIBS could be successfully implanted in human anatomic specimens. The results reported in this study will allow the development of trackable and degradable IBS to reduce biliary complications after liver transplantation. STATEMENT OF SIGNIFICANCE: Biliary reconstruction during liver transplantation is an important source of postoperative morbidity and mortality although it is generally considered as an easy step of a difficult surgery. In this frame, internal biliary stent (IBS) implantation is beneficial to reduce biliary anastomosis complications (leakage, stricture). However, current IBS are made of non-degradable silicone elastomeric materials, which leads to an additional ablation procedure involving potential complications and additional costs. The present study provides in vitro and human postmortem implantation data related to the development and evaluation of a resorbable and radiopaque internal biliary stent (RIBS) that could tackle these drawbacks.
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Affiliation(s)
- Edouard Girard
- Univ. Grenoble Alpes, CNRS, CHU Grenoble Alpes, Grenoble INP, TIMC-IMAG, F-38000 Grenoble, France; Département de chirurgie digestive et de l'urgence, Centre Hospitalier Grenoble-Alpes, 38000 Grenoble, France; Laboratoire d'anatomie des Alpes françaises (LADAF), UFR de médecine de Grenoble, Université de Grenoble-Alpes, F-38700 Grenoble, France.
| | - Grégory Chagnon
- Univ. Grenoble Alpes, CNRS, CHU Grenoble Alpes, Grenoble INP, TIMC-IMAG, F-38000 Grenoble, France
| | - Alexis Broisat
- INSERM, Unité 1039, F-38000 Grenoble, France; Radiopharmaceutiques Biocliniques, Université Grenoble-Alpes, F-38000 Grenoble, France
| | - Stéphane Dejean
- IBMM, Université de Montpellier, CNRS, ENSCM, Montpellier, France
| | - Audrey Soubies
- INSERM, Unité 1039, F-38000 Grenoble, France; Radiopharmaceutiques Biocliniques, Université Grenoble-Alpes, F-38000 Grenoble, France
| | - Hugo Gil
- Département d'anatomopathologie et cytologie, Centre Hospitalier Grenoble-Alpes, 38000 Grenoble, France
| | - Tahmer Sharkawi
- ICGM, Université de Montpellier, CNRS, ENSCM, Montpellier, France
| | - François Boucher
- Univ. Grenoble Alpes, CNRS, CHU Grenoble Alpes, Grenoble INP, TIMC-IMAG, F-38000 Grenoble, France; Radiopharmaceutiques Biocliniques, Université Grenoble-Alpes, F-38000 Grenoble, France
| | - Gaël S Roth
- Institute for Advanced Biosciences, INSERM U1209/CNRS UMR 5309, Université Grenoble-Alpes, F-38700 Grenoble, France; Clinique universitaire d'Hépato-gastroentérologie et Oncologie digestive, CHU Grenoble-Alpes, Grenoble 38043, France
| | - Bertrand Trilling
- Univ. Grenoble Alpes, CNRS, CHU Grenoble Alpes, Grenoble INP, TIMC-IMAG, F-38000 Grenoble, France; Département de chirurgie digestive et de l'urgence, Centre Hospitalier Grenoble-Alpes, 38000 Grenoble, France; Laboratoire d'anatomie des Alpes françaises (LADAF), UFR de médecine de Grenoble, Université de Grenoble-Alpes, F-38700 Grenoble, France
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Abdominal drain straying into right atrium: a case report. Surg Case Rep 2019; 5:127. [PMID: 31388780 PMCID: PMC6684829 DOI: 10.1186/s40792-019-0685-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 07/30/2019] [Indexed: 11/18/2022] Open
Abstract
Background A drain exchange with the use of a guidewire may be accompanied by serious complications. Case presentation This case involved an 86-year-old man with overlapping cancers of intrahepatic cholangiocarcinoma and perihilar cholangiocarcinoma. A left hepatectomy, a left caudal lobectomy (with a medial hepatic vein preservation), an extrahepatic bile duct resection, and a right hepatojejunostomy were performed. The abdominal drain was placed into the hepatectomy side. Bile leakage occurred on the seventh day after the surgery, and the drain was exchanged. Since the bile leakage was still detectable via a computed tomography (CT) scan on the 15th postoperative day, the drain was exchanged again. On the next day, blood had discharged from the drain. A CT scan revealed that the tip of the drain was straying into the right atrium (RA) and the drain was removed from the inferior vena cava (IVC) under general anesthesia. One week later, a fiburin thrombus was observed from the IVC to the RA via the use of transthoracic echocardiography. A right atrial incision, a thrombus removal, and a middle hepatic vein merging section closure surgery were performed. Afterward, the patient’s general condition gradually improved, and he was transferred to the hospital for rehabilitation. Conclusion More careful guidewire operations are necessary at the time of the exchange of the drain to prevent the drain from being placed too close to blood vessels.
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Girard E, Chagnon G, Gremen E, Calvez M, Masri C, Boutonnat J, Trilling B, Nottelet B. Biomechanical behaviour of human bile duct wall and impact of cadaveric preservation processes. J Mech Behav Biomed Mater 2019; 98:291-300. [PMID: 31288211 DOI: 10.1016/j.jmbbm.2019.07.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 06/05/2019] [Accepted: 07/02/2019] [Indexed: 11/17/2022]
Abstract
Biliary diseases are the third most common cause of surgical digestive disease. There is a close relationship between the mechanical performance of the bile duct and its physiological function. Data of biomechanical properties of human main bile duct are scarce in literature. Furthermore, mechanical properties of soft tissues are affected by these preservation procedures. The aim of the present work was, on the one hand, to observe the microstructure of the human bile duct by means of histological analysis, on the other hand, to characterize the mechanical behavior and describe the impact of different preservation processes. A mechanical study in a controlled environment consisting of cyclic tests was made. The results of the mechanical tests are discussed and explained using the micro-structural observations. The results show an influence of the loading direction, which is representative of an anisotropic behavior. A strong hysteresis due to the viscoelastic properties of soft tissues was also observed. Embalming and freezing preservation methods had an impact on the biomechanical properties of human main bile duct, with fiber network deterioration. That may further provide a useful quantitative baseline for anatomical and surgical training using embalming and freezing.
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Affiliation(s)
- E Girard
- Univ. Grenoble Alpes, CNRS, Grenoble INP, CHU Grenoble Alpes, TIMC-IMAG, 38000, Grenoble, France; Département de Chirurgie Digestive et de l'urgence, Centre Hospitalier Grenoble-Alpes, 38000, Grenoble, France; Laboratoire d'anatomie des Alpes françaises (LADAF), UFR de Médecine de Grenoble, France.
| | - G Chagnon
- Univ. Grenoble Alpes, CNRS, Grenoble INP, TIMC-IMAG, 38000, Grenoble, France
| | - E Gremen
- Laboratoire d'anatomie des Alpes françaises (LADAF), UFR de Médecine de Grenoble, France
| | - M Calvez
- Univ. Grenoble Alpes, CNRS, Grenoble INP, TIMC-IMAG, 38000, Grenoble, France
| | - C Masri
- Univ. Grenoble Alpes, CNRS, Grenoble INP, TIMC-IMAG, 38000, Grenoble, France
| | - J Boutonnat
- Univ. Grenoble Alpes, CNRS, Grenoble INP, CHU Grenoble Alpes, TIMC-IMAG, 38000, Grenoble, France; Département d'anatomopathologie et Cytologie, Centre Hospitalier Grenoble-Alpes, 38000, Grenoble, France
| | - B Trilling
- Univ. Grenoble Alpes, CNRS, Grenoble INP, CHU Grenoble Alpes, TIMC-IMAG, 38000, Grenoble, France; Département de Chirurgie Digestive et de l'urgence, Centre Hospitalier Grenoble-Alpes, 38000, Grenoble, France; Laboratoire d'anatomie des Alpes françaises (LADAF), UFR de Médecine de Grenoble, France
| | - B Nottelet
- IBMM, Université de Montpellier, CNRS, ENSCM, Montpellier, France
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