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Weinberg L, Caragata R, Hazard R, Ludski J, Lee DK, Slifirski H, Nugraha P, Do D, Zhang W, Nicolae R, Kaldas P, Fink MA, Perini MV. Venovenous bypass in adult liver transplant recipients: A single-center observational case series. PLoS One 2024; 19:e0303631. [PMID: 38820491 PMCID: PMC11142538 DOI: 10.1371/journal.pone.0303631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 04/29/2024] [Indexed: 06/02/2024] Open
Abstract
BACKGROUND Very little information is currently available on the use and outcomes of venovenous bypass (VVB) in liver transplantation (LT) in adults in Australia. In this study, we explored the indications, intraoperative course, and postoperative outcomes of patients who underwent VVB in a high-volume LT unit. METHODS The study was a single-center, retrospective observational case series of adult patients who underwent VVB during LT at Austin Health in Melbourne, Australia between March 2008 and March 2022. Information on baseline preoperative status and intraoperative variables, including specific VVB characteristics as well as postoperative and VVB-related complications was collected. The lengths of intensive care unit and hospital stays as well as intraoperative and in-hospital mortality were recorded. RESULTS Of the 900 LTs performed at this center during the aforementioned 14-year period, 27 (3%) included a VVB procedure. VVB was performed electively in 16 of these 27 patients (59.3%) and as a rescue technique to control massive bleeding in the other 11 (40.1%). The median (interquartile range [IQR]) age of those who underwent VVB procedures was 48 (39-55) years; the median age was 56 (47-62) years in the non-VVB group (p<0.0001). The median model for end-stage liver disease (MELD) scores were similar between the two patient groups. Complete blood data was available for 622 non-VVB patients. Twenty-six VVB (96.3%) and 603 non-VVB (96.9%) patients required intraoperative blood transfusions. The median (IQR) number of units of packed red blood cells transfused was 7 (4.8-12.5) units in the VVB group compared to 3.0 units (1.0-6.0) in the non-VVB group (p<0.0001). Inpatient mortality was 18.5% and 1.1% for the VVB and non-VVB groups, respectively (p<0.0001). There were no significant differences in length of hospital stay or incidence of acute kidney injury, primary graft dysfunction, or long-term graft failure between the two groups. Patients in the VVB group experienced a higher rate of postoperative non-anastomotic biliary stricture compared to patients in the non-VVB group (33% and 7.9%, respectively; p = 0.0003). CONCLUSIONS VVB continues to play a vital role in LT. This case series highlights the heightened risk of major complications linked to VVB. However, the global transition to selective use of VVB underscores the urgent need for collaborative multi-center studies designed to address outstanding questions and parameters related to the safe implementation of this procedure.
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Affiliation(s)
- Laurence Weinberg
- Department of Anaesthesia, Austin Health, Heidelberg, Australia
- Department of Critical Care, Austin Health, The University of Melbourne, Heidelberg, Australia
| | | | - Riley Hazard
- Department of Anaesthesia, Austin Health, Heidelberg, Australia
| | - Jarryd Ludski
- Department of Anaesthesia, Austin Health, Heidelberg, Australia
| | - Dong-Kyu Lee
- Department of Anesthesiology and Pain Medicine, Dongguk University Ilsan Hospital, Goyang, Republic of Korea
| | - Hugh Slifirski
- Department of Anaesthesia, Austin Health, Heidelberg, Australia
| | - Patrick Nugraha
- Department of Anaesthesia, Austin Health, Heidelberg, Australia
| | - Daniel Do
- Department of Anaesthesia, Austin Health, Heidelberg, Australia
| | - Wendell Zhang
- Department of Anaesthesia, Austin Health, Heidelberg, Australia
| | - Robert Nicolae
- Department of Anaesthesia, Austin Health, Heidelberg, Australia
| | - Peter Kaldas
- Department of Surgery, Austin Health, The University of Melbourne, Heidelberg, Australia
| | - Michael A. Fink
- Department of Surgery, Austin Health, The University of Melbourne, Heidelberg, Australia
| | - Marcos V. Perini
- Department of Surgery, Austin Health, The University of Melbourne, Heidelberg, Australia
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Intensive care management of liver transplant recipients. Curr Opin Crit Care 2022; 28:709-714. [PMID: 36226713 DOI: 10.1097/mcc.0000000000001002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
PURPOSE OF REVIEW Liver transplantation remains the only definitive treatment for advanced liver disease and liver failure. Current allocation schemes utilized for liver transplantation mandate a 'sickest first' approach, thus most liver transplants occur in patients with severe systemic illness. For intensive care providers who care for liver transplant recipients, a foundation of knowledge of technical considerations of orthotopic liver transplantation, basic management considerations, and common complications is essential. This review highlights the authors' approach to intensive care management of the postoperative liver transplant recipient with a review of common issues, which arise in this patient population. RECENT FINDINGS The number of centers offering liver transplantation continues to increase globally and the number of patients receiving liver transplantation also continues to increase. The number of patients with advanced liver disease far outpaces organ availability and, therefore, patients undergoing liver transplant are sicker at the time of transplant. Outcomes for liver transplant patients continue to improve owing to advancements in surgical technique, immunosuppression management, and intensive care management of liver disease both pretransplant and posttransplant. SUMMARY Given a global increase in liver transplantation, an increasing number of intensive care professionals are likely to care for this patient population. For these providers, a foundational knowledge of the common complications and key management considerations is essential.
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Wong D, Hockley J, Parys S, Hodder R, Jansen S, Newman M. Current Technology Venous-Venous Bypass Improves the Safety of Resection of Sarcoma and Benign Retroperitoneal Tumours Involving the Inferior Vena Cava. Eur J Vasc Endovasc Surg 2022; 64:575-576. [PMID: 35964890 DOI: 10.1016/j.ejvs.2022.07.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 06/19/2022] [Accepted: 07/22/2022] [Indexed: 01/12/2023]
Affiliation(s)
- Damian Wong
- Sir Charles Gairdner Hospital, Perth, Western Australia; Royal Perth Hospital, Perth, Western Australia.
| | - Joe Hockley
- Sir Charles Gairdner Hospital, Perth, Western Australia; School of Medicine, Curtin University, Perth, Western Australia; Heart and Vascular Research Institute, Harry Perkins Institute for Medical Research, Perth, Western Australia
| | - Simon Parys
- Sir Charles Gairdner Hospital, Perth, Western Australia
| | - Rupert Hodder
- Sir Charles Gairdner Hospital, Perth, Western Australia; School of Medicine, Curtin University, Perth, Western Australia
| | - Shirley Jansen
- Sir Charles Gairdner Hospital, Perth, Western Australia; School of Medicine, Curtin University, Perth, Western Australia; Heart and Vascular Research Institute, Harry Perkins Institute for Medical Research, Perth, Western Australia; School of Biomedical Sciences, University of Western Australia, Perth, Western Australia
| | - Mark Newman
- Sir Charles Gairdner Hospital, Perth, Western Australia; School of Biomedical Sciences, University of Western Australia, Perth, Western Australia
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Fernandez TMA, Schofield N, Krenn CG, Rizkalla N, Spiro M, Raptis DA, De Wolf AM, Merritt WT. What is the optimal anesthetic monitoring regarding immediate and short-term outcomes after liver transplantation?-A systematic review of the literature and expert panel recommendations. Clin Transplant 2022; 36:e14643. [PMID: 35262975 PMCID: PMC10077907 DOI: 10.1111/ctr.14643] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 02/28/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND Liver transplant centers vary in approach to intraoperative vascular accesses, monitoring of cardiac function and temperature management. Evidence is limited regarding impact of selected modalities on postoperative outcomes. OBJECTIVES To review the literature and provide expert panel recommendations on optimal intraoperative arterial blood pressure (BP), central venous pressure (CVP), and vascular accesses, monitoring of cardiac function and intraoperative temperature management regarding immediate and short-term outcomes after orthotopic liver transplant (OLT). METHODS Systematic review following PRISMA guidelines and recommendations using the GRADE approach derived from an international expert panel. Recommendations made for: (1) Vascular accesses, arterial BP and CVP monitoring, (2) cardiac function monitoring, and (3) Intraoperative temperature management (CRD42021239908). RESULTS Of 2619 articles screened 16 were included. Studies were small, retrospective, and observational. Vascular access studies demonstrated low rates of insertion complications. TEE studies demonstrated low rates of esophageal hemorrhage. One study found lower hospital-LOS and 30-day mortality in patients monitored with both PAC and TEE. Other monitoring studies were heterogenous in design and outcomes. Temperature studies showed increased blood transfusion and ventilation times in hypothermic groups. CONCLUSIONS Recommendations were made for; routine arterial and CVP monitoring as a minimum standard of practice, consideration of discrepancy between peripheral and central arterial BP in patients with hemodynamic instability and high vasopressor requirements, and routine use of high flow cannulae while monitoring for extravasation and hematoma formation. Availability and expertise in PAC and/or TEE monitoring is strongly recommended particularly in hemodynamic instability, portopulmonary HT and/or cardiac dysfunction. TEE use is recommended as an acceptable risk in patients with treated esophageal varices and is an effective diagnostic tool for emergency cardiovascular collapse. Maintenance of intraoperative normothermia is strongly recommended.
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Affiliation(s)
- Thomas M A Fernandez
- Department of Anesthesia and Perioperative Medicine, Auckland City Hospital, Auckland, New Zealand.,Department of Anesthesia, University of Auckland, Auckland, New Zealand
| | - Nick Schofield
- Department of Anesthesia and Intensive Care Medicine, Royal Free Hospital, London, UK
| | - Claus G Krenn
- Department of Anesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
| | - Nicole Rizkalla
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins Hospital, Baltimore, Maryland, USA
| | - Michael Spiro
- Department of Anesthesia and Intensive Care Medicine, Royal Free Hospital, London, UK.,Clinical Service of HPB Surgery and Liver Transplantation, Royal Free Hospital, London, UK
| | - Dimitri Aristotle Raptis
- Clinical Service of HPB Surgery and Liver Transplantation, Royal Free Hospital, London, UK.,Division of Surgery & Interventional Science, University College London, London, UK
| | - Andre M De Wolf
- Department of Anesthesiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - William T Merritt
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins Hospital, Baltimore, Maryland, USA.,Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland, USA
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- Department of Anesthesia and Perioperative Medicine, Auckland City Hospital, Auckland, New Zealand
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Single-Centre Experience of Supra-Renal Vena Cava Resection and Reconstruction. World J Surg 2021; 45:2270-2279. [PMID: 33728505 DOI: 10.1007/s00268-021-06048-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Tumours involving the supra-renal segment of IVC have dismal prognosis if left untreated. Currently, aggressive surgical management is the only potentially curative treatment but is associated with relatively high morbidity and mortality. This study aims to evaluate perioperative factors, associated with adverse postoperative outcomes, based on the perioperative characteristics and type of IVC reconstruction. METHODS We identified 44 consecutive patients, who underwent supra-renal IVC resection with a mean age of 57.3 years. Isolated resection of IVC was performed in four patients, concomitant liver resection was performed in 27 patients and other associated resection in 13 patients. Total vascular exclusion was applied in 21 patients, isolated IVC occlusion in 11 patients. Neither venovenous bypass (VVB) nor hypothermic perfusion was used in any of the cases. RESULTS The mean operative time was 205 min (150-324 min) and the mean estimated blood loss was 755 ml (230-4500 ml). Overall morbidity was 59% and major complications (Dindo-Clavien ≥ III) occurred in 11 patients (25%). The 90-day mortality was 11% (5pts). Intraoperative haemotransfusion was significantly associated with postoperative general complications (p < 0,001). With a mean follow-up of 26.2 months, the actuarial 1-, 3- and 5-year survival is 69%, 34%, and 16%, respectively. CONCLUSIONS IVC resection and reconstruction in the aspect of aggressive surgical management of malignant disease confers a survival advantage in patients, often considered unresectable. When performed in experienced centres it is associated with acceptable morbidity and mortality.
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Case series of extended liver resection associated with inferior vena cava reconstruction using peritoneal patch. Int J Surg 2020; 80:6-11. [PMID: 32535267 DOI: 10.1016/j.ijsu.2020.05.069] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 05/07/2020] [Accepted: 05/21/2020] [Indexed: 01/06/2023]
Abstract
INTRODUCTION Among various reported techniques for inferior vena cava (IVC) reconstruction, the superiority of one technique over another has not been clearly established. This study aimed at reporting the technical aspects of caval reconstruction using peritoneal patch during extended liver resections. METHODS All consecutive patients who underwent extended liver resection associated with anterolateral caval reconstruction using a peritoneal patch from 2016 to 2019 were included in this study. Technical insights, intra-operative details, short and long-term results were reported. RESULTS Overall six patients underwent caval reconstruction using peritoneal patch under total vascular exclusion. Half of them required veno-venous bypass. Caval involvement ranged from 30 to 50% of the circumference and from 5 to 7 cm of the length of the IVC. Caval reconstructions was performed using a peritoneal patch harvested from the falciform ligament in four cases and from the right pre-renal peritoneum and right part of the diaphragm in one Case each. Three cases underwent associated reimplantation the remnant hepatic vein. Median intra-operative blood loss and TVE duration were 500 ml and 41 min, respectively. One case experienced a severe complication (liver failure leading to death). R0 resection was achieved in all patients. All patients had patent IVC and remnant hepatic vein at last follow-up and none was on long-term therapeutic anticoagulation. CONCLUSION Caval reconstruction using a peritoneal patch in patients undergoing extended liver resection is feasible and cost-effective and associated with excellent long-term results.
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Gregory SH, Yalamuri SM, McCartney SL, Shah SA, Sosa JA, Roman S, Colin BJ, Lentschener C, Munroe R, Patel S, Feinman JW, Augoustides JG. Perioperative Management of Adrenalectomy and Inferior Vena Cava Reconstruction in a Patient With a Large, Malignant Pheochromocytoma With Vena Caval Extension. J Cardiothorac Vasc Anesth 2017; 31:365-377. [DOI: 10.1053/j.jvca.2016.07.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Indexed: 12/19/2022]
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Extreme liver surgery as treatment of liver tumors involving the hepatocaval confluence. Clin Transl Oncol 2016; 18:1131-1139. [PMID: 26960560 DOI: 10.1007/s12094-016-1495-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 02/22/2016] [Indexed: 01/14/2023]
Abstract
OBJECTIVE Analyze the characteristics, surgical technique, morbidity and survival of patients treated with extreme liver surgery. MATERIALS AND METHODS We present a series of consecutive patients with malignant liver tumors in hepatocaval confluence treated in a single center with extreme liver surgery (April 2008-March 2015). Data were collected prospectively and analyzed with SPSS 21.0. RESULTS 12 patients were included. 50 % were male and 50 % were female with a mean age of 59 ± 10 years old. The median of comorbidities was 7 according to the Charlson Age Comorbidity Index. The 75 % of the tumors were metastases, most of them from colorectal cancer. Most of the patients received neoadjuvant chemotherapy and in 58 % preoperative portal embolization was performed. Major hepatectomies were performed (66.7 % extended right hepatectomy, 33.3 % left extended hepatectomy). The 83.3 % of the patients needed vascular reconstruction. Postoperative morbidity was more than grade II in 50 % of the patients according to Dindo-Clavien classification. There was no intraoperative mortality. The postoperative mortality rate at 90 days was 33 % due to hepatic failure and biliary fistula. In December 2015, 33 % of the patients are still alive with a mean survival of 19 months (13-23) with an ECOG Performance Status of 0. CONCLUSION Extreme liver surgery carries a high rate of morbidity and mortality that seem to increase with age and with higher tumor volumes, according to the literature. It is a therapeutic option to consider in patients with low comorbidity suffering from malignant neoplasms that involve the hepatocaval confluence, when no other treatment with curative intention can be performed.
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De Pietri L, Mocchegiani F, Leuzzi C, Montalti R, Vivarelli M, Agnoletti V. Transoesophageal echocardiography during liver transplantation. World J Hepatol 2015; 7:2432-2448. [PMID: 26483865 PMCID: PMC4606199 DOI: 10.4254/wjh.v7.i23.2432] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2015] [Revised: 06/22/2015] [Accepted: 09/09/2015] [Indexed: 02/06/2023] Open
Abstract
Liver transplantation (LT) has become the standard of care for patients with end stage liver disease. The allocation of organs, which prioritizes the sickest patients, has made the management of liver transplant candidates more complex both as regards their comorbidities and their higher risk of perioperative complications. Patients undergoing LT frequently display considerable physiological changes during the procedures as a result of both the disease process and the surgery. Transoesophageal echocardiography (TEE), which visualizes dynamic cardiac function and overall contractility, has become essential for perioperative LT management and can optimize the anaesthetic management of these highly complex patients. Moreover, TEE can provide useful information on volume status and the adequacy of therapeutic interventions and can diagnose early intraoperative complications, such as the embolization of large vessels or development of pulmonary hypertension. In this review, directed at clinicians who manage TEE during LT, we show why the procedure merits a place in challenging anaesthetic environment and how it can provide essential information in the perioperative management of compromised patients undergoing this very complex surgical procedure.
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Complex Liver Resection Using Standard Total Vascular Exclusion, Venovenous Bypass, and In Situ Hypothermic Portal Perfusion. Ann Surg 2015; 262:93-104. [DOI: 10.1097/sla.0000000000000787] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Azoulay D, Maggi U, Lim C, Malek A, Compagnon P, Salloum C, Laurent A. Liver resection using total vascular exclusion of the liver preserving the caval flow, in situ hypothermic portal perfusion and temporary porta-caval shunt: a new technique for central tumors. Hepatobiliary Surg Nutr 2014; 3:149-53. [PMID: 25019076 DOI: 10.3978/j.issn.2304-3881.2014.05.02] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Accepted: 05/15/2014] [Indexed: 12/29/2022]
Abstract
Standard total vascular exclusion (TVE) of the liver is indicated for resection of tumors involving or adjacent to the vena cava and/or the confluence of the hepatic veins. The duration of liver ischemia can be prolonged by combined portal hypothermic perfusion of the liver (in or ex situ). The use of a venovenous bypass (VVB) during standard TVE maintains stable hemodynamics as well as optimal renal and splanchnic venous drainage. When the hepatic veins can be controlled, TVE preserving the caval flow negates the need for VVB. However this technique remains limited in duration as it is performed under warm ischemia (so-called normothermia) of the liver. To prolong the ischemia time, we have designed a modification of TVE with preservation of the caval flow including the use of temporary porta-caval shunt (PCS) and hypothermic perfusion of the liver. We describe here the first two cases of this new technique. Two patients underwent left hepatectomy extended to segments 5 and 8 (also called extended left hepatectomy) for large centrally located tumors. TVE lasted seventy-two and seventy-nine minutes, respectively. The postoperative course was uneventful and both patients were discharged on day ten and day twenty-five respectively. Both are alive without recurrence at ten and seven months following surgery. Provided the roots of the hepatic veins can be controlled, this technique combines the advantages of standard TVE with in situ hypothermic perfusion and VVB and obviates the need and the subsequent risks of the latter.
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Affiliation(s)
- Daniel Azoulay
- Department of Hepato-Biliary Surgery and Liver Transplantation, AP-HP, U.F.R. de médecine de l'Université Paris XII-Créteil, France
| | - Umberto Maggi
- Department of Hepato-Biliary Surgery and Liver Transplantation, AP-HP, U.F.R. de médecine de l'Université Paris XII-Créteil, France
| | - Chetana Lim
- Department of Hepato-Biliary Surgery and Liver Transplantation, AP-HP, U.F.R. de médecine de l'Université Paris XII-Créteil, France
| | - Alexandre Malek
- Department of Hepato-Biliary Surgery and Liver Transplantation, AP-HP, U.F.R. de médecine de l'Université Paris XII-Créteil, France
| | - Philippe Compagnon
- Department of Hepato-Biliary Surgery and Liver Transplantation, AP-HP, U.F.R. de médecine de l'Université Paris XII-Créteil, France
| | - Chady Salloum
- Department of Hepato-Biliary Surgery and Liver Transplantation, AP-HP, U.F.R. de médecine de l'Université Paris XII-Créteil, France
| | - Alexis Laurent
- Department of Hepato-Biliary Surgery and Liver Transplantation, AP-HP, U.F.R. de médecine de l'Université Paris XII-Créteil, France
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Azoulay D, Pascal G, Salloum C, Adam R, Castaing D, Tranecol N. Vascular reconstruction combined with liver resection for malignant tumours. Br J Surg 2014; 100:1764-75. [PMID: 24227362 DOI: 10.1002/bjs.9295] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/07/2013] [Indexed: 02/06/2023]
Abstract
BACKGROUND The resectability criteria for malignant liver tumours have expanded during the past two decades. The use of vascular reconstruction after hepatectomy has been integral in this process. However, the majority of reports are anecdotal. This is a retrospective analysis of the techniques, morbidity, mortality and risk factors of liver resections with vascular reconstruction based on a large series from a single centre. METHODS Patients who underwent hepatic resection combined with vascular resection and reconstruction between 1997 and 2009 were included in this study. Indications for surgery, morbidity and 90-day mortality are reported along with factors predictive of operative mortality. RESULTS Eighty-four patients had liver resection with 97 vascular resections and reconstruction. There were 44 men and 40 women with a mean(s.d.) age of 56·9(12·1) years. Mean(s.d.) follow-up was 37·3(34·1) months. All patients had primary or metastatic liver tumours. The perioperative morbidity rate was 62 per cent (52 patients) and the operative mortality rate 14 per cent (12). Predictors of operative mortality were: bilirubin level exceeding 34 µmol/ml (P = 0·023), indocyanine green retention rate at 15 min over 10 per cent (P = 0·031), duration of ischaemia (P = 0·011), amount of blood transfused (P = 0·025) and combined major extrahepatic procedure (P = 0·042). Actuarial 3- and 5-year survival rates were 44 and 26 per cent respectively. CONCLUSION Liver resection with combined vascular resection and reconstruction can be performed in selected patients with acceptable morbidity and mortality. The lack of therapeutic alternatives and the poor outcome of non-operative management seem to justify this approach. The identification of risk factors should help improve patient selection and postoperative outcome as well as facilitate objective risk communication with surgical candidates.
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Affiliation(s)
- D Azoulay
- Centre Hépato-Biliaire, Département de Chirurgie Hépato-Biliaire, Assistance Publique-Hôpitaux de Paris (AP-HP) Hôpital Paul Brousse, Villejuif; Service de Chirurgie Hépato-Bilio-Pancreatique, AP-HP Hôpital Henri Mondor, Créteil, France
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Lu SY, Matsusaki T, Abuelkasem E, Sturdevant ML, Humar A, Hilmi IA, Planinsic RM, Sakai T. Complications related to invasive hemodynamic monitors during adult liver transplantation. Clin Transplant 2013; 27:823-8. [PMID: 24033433 DOI: 10.1111/ctr.12222] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/29/2013] [Indexed: 01/10/2023]
Abstract
The rate of complications directly related to invasive monitors during liver transplantation (LT) was reviewed in 1206 consecutive adult LTs performed over 8.6 yr (1/1/2004-7/31/2012). The designated anesthesiologists placed intra-operative monitors, including two arterial catheters (via the radial and the right femoral arteries), central venous catheters (a 9 Fr. catheter and an 18 Fr. veno-venous bypass [VVB] return cannula in an internal jugular vein), a pulmonary artery catheter, and a transesophageal echocardiography (TEE) probe. A 17 Fr. VVB drainage cannula was placed via the left femoral vein. No Clavien-Dindo Grade V (death) or Grade IV (organ dysfunction) complication was identified. Nine Grade III complications (requiring surgical intervention) and 15 Grade II complications (conservative treatment) were noted. Seven (0.58% in 1206 cases) were related to a femoral arterial line with Grade III of four; seven (0.58%) were due to VVB return cannula in the femoral vein with Grade III of one; four (0.33%) were related to central venous catheters with Grade III of two; four (0.33%) were due to a TEE probe with Grade III of two; and two minor complications (0.17%) that were related to a radial arterial line. No complication was observed with a pulmonary arterial catheter. Current invasive monitors placed during LT have an acceptable risk.
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Affiliation(s)
- Shu Y Lu
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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Sidebotham D, Allen SJ, McGeorge A, Ibbott N, Willcox T. Venovenous extracorporeal membrane oxygenation in adults: practical aspects of circuits, cannulae, and procedures. J Cardiothorac Vasc Anesth 2012; 26:893-909. [PMID: 22503344 DOI: 10.1053/j.jvca.2012.02.001] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Indexed: 01/19/2023]
Affiliation(s)
- David Sidebotham
- Cardiothoracic Intensive Care Unit, Auckland City Hospital, Auckland, New Zealand.
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Sakai T, Gligor S, Diulus J, McAffee R, Wallis Marsh J, Planinsic RM. Insertion and management of percutaneous veno-venous bypass cannula for liver transplantation: a reference for transplant anesthesiologists. Clin Transplant 2009; 24:585-91. [DOI: 10.1111/j.1399-0012.2009.01145.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Polak WG, Peeters PM, Slooff MJ. The evolution of surgical techniques in clinical liver transplantation. A review. Clin Transplant 2009; 23:546-64. [DOI: 10.1111/j.1399-0012.2009.00994.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Abstract
PURPOSE OF REVIEW The present review describes new trends and ongoing controversies in the anesthetic care of liver transplant recipients. RECENT FINDINGS Recent studies have improved our knowledge of conditions increasing perioperative risk, such as portopulmonary hypertension and renal failure. Improved surgical and anesthetic management has reduced intraoperative blood loss, as more studies identify an independent association between blood transfusion and poor outcome. New concepts in the coagulopathy of liver failure are emerging, with clear implications for clinical practice, including greater awareness of the risks of intraoperative thromboembolism. Less invasive intraoperative hemodynamic monitoring has been advocated, as has wider use of transoesophageal echocardiography. Early extubation is becoming more routinized. SUMMARY Anesthetic management still varies widely between liver transplant centers with little data to indicate best practice. Future research should focus on fluid replacement, prevention and treatment of coagulopathy, care of the acutely ill patient and the safety and benefits of early extubation.
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Sakai T, Planinsic RM, Hilmi IA, Marsh JW. Complications associated with percutaneous placement of venous return cannula for venovenous bypass in adult orthotopic liver transplantation. Liver Transpl 2007; 13:961-5. [PMID: 17600351 DOI: 10.1002/lt.21072] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Percutaneous large bore cannula placement during orthotopic liver transplantation (OLT) for use in venovenous bypass (VVB) has been reported to be a rapid and simple technique. It is, however, a technique that carries its own risks. The aim of the study was to investigate the incidence of complications related to the placement of a percutaneous venous return cannula and subsequent VVB in OLT. A retrospective review of 360 consecutive adult OLT patients during a period of 18 months (January 1, 2003 to June 30, 2004) was performed. The percutaneous venous cannula (18 Fr) was placed by an attending transplant anesthesiologist. The cannulation was attempted in 326 patients (90.6%). No cannulation was attempted on the subclavian veins. Internal jugular venous cannula placement was attempted but aborted in 6 patients (1.8%) due to technical difficulties. In 320 patients who received an internal jugular venous cannula, 313 (97.8%) underwent OLT without complication. The remaining 7 patients (2.2%) had complications. The operation was delayed for 1 patient due to suspected hemomediastinum. The other 6 complications were related to VVB: air embolism (2 patients), low flow rate (2 patients), hypotension (1 patient), and atrial fibrillation (1 patient). Successful OLT was eventually carried out in all the 7 patients and no mortality associated with internal jugular venous cannula placement or VVB was noted. In conclusion, percutaneous placement of a large bore venous return cannula for VVB during adult OLT can be performed with acceptable risk using a flexible 18-Fr cannula via the right internal jugular vein (IJV) by experienced attending transplant anesthesiologists.
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Affiliation(s)
- Tetsuro Sakai
- Department of Anesthesiology, University of Pittsburgh Medical Center Presbyterian/Montefiore Hospital, University of Pittsburgh Medical Center, University of Pittsburgh, Pittsburgh, PA 15213, USA
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19
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Khan S, Silva MA, Tan YM, John A, Gunson B, Buckels JAC, David Mayer A, Bramhall SR, Mirza DF. Conventional versus piggyback technique of caval implantation; without extra-corporeal veno-venous bypass. A comparative study. Transpl Int 2007; 19:795-801. [PMID: 16961770 DOI: 10.1111/j.1432-2277.2006.00331.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Conventional orthotopic liver transplantation (CON-LT) involves resection of recipient cava, usually with extra-corporeal circulation (veno-venous bypass, VVB), while in the piggyback technique (PC-LT) the cava is preserved. Along with a temporary portacaval shunt (TPCS), better haemodynamic maintenance is purported with PC-LT. A prospective, consecutive series of 384 primary transplants (2000-2003) were analysed, 138 CON-LT (with VVB) and 246 PC-LT (54 without TPCS). Patient/donor characteristics were similar in the two groups. PC-LT required less usage of fresh-frozen plasma and platelets, intensive care stay, number of patients requiring ventilation after day 1 and total days spent on ventilator. The results were not different when comparing, total operating and warm ischaemia time (WIT), red cell usage, requirement for renal support, day 3 serum creatinine and total hospital stay. TPCS had no impact on outcome other than WIT (P = 0.02). Three patients in PC-LT group (three of 246;1.2%) developed caval outflow obstruction (P = 0.02). There was no difference in short- or long-term graft or patient survival. PC-LT has an advantage over CON-LT unsing VVB with respect to intraoperative blood product usage, postoperative ventilation requirement and ITU stay. VVB is no longer required and TPCS may be used selectively in adult transplantation.
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Affiliation(s)
- Saboor Khan
- Liver Unit (Liver Transplantation and Hepatobiliary Surgery), University Hospital Birmingham NHS Trust, Queen Elizabeth, Edgbaston, Birmingham, UK
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20
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Barakat O, Hoef J, Ozaki CF, Patrick Wood R. Extended right trisegmentectomy using in situ hypothermic perfusion with modified HTK solution for a large intrahepatic cholangiocarcinoma. J Surg Oncol 2007; 95:587-92. [PMID: 17226825 DOI: 10.1002/jso.20738] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The technique of right hepatic trisegmentectomy has been standardized for large tumors that involve the right lobe and extend into the medial segment of the left lobe. However, these tumors are deemed unresectable if they encroach across the falciform ligament into the left lateral segment. We report the technique of extended right trisegmentectomy in a patient with a large intrahepatic cholangiocarcinoma that involved the right lobe of the liver and extended into the medial and lateral segments of the left lobe. The resection was performed by using total hepatic vascular isolation and in situ hypothermic perfusion with modified histidine-tryptophan-ketoglutarate (HTK) solution into the left lateral segment. The biliary enteric anastomosis was constructed using a double hepaticojejunostomy to Segments II and III bile ducts. The procedure allowed safe parenchymal dissection with preservation of the blood supply to Segments II and III. Furthermore, in situ hypothermic perfusion protected the remnant liver from the deleterious effects of warm ischemia during parenchymal dissection and facilitated postoperative recovery. To the best of our knowledge, this is the first report of extended right trisegmentectomy for the treatment of intrahepatic cholangiocarcinoma in the Western literature.
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Affiliation(s)
- Omar Barakat
- Department of Surgery, St. Luke's Episcopal Hospital and Texas Heart Institute, Houston, Texas, USA.
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21
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Burtenshaw AJ, Isaac JL. The role of trans-oesophageal echocardiography for perioperative cardiovascular monitoring during orthotopic liver transplantation. Liver Transpl 2006; 12:1577-83. [PMID: 17058248 DOI: 10.1002/lt.20929] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Patients undergoing orthotopic liver transplantation frequently display considerable physiological changes during the procedure as a result of both the disease process and the surgery. Anaesthesia is often challenging and relies upon advanced monitoring techniques to provide data pertinent to peri-operative management. Traditionally the pulmonary artery flotation catheter has been regarded as the gold standard for cardiac output and right heart monitoring. This review examines whether trans-oesophageal echocardiography merits a place in the continuing evolution of this technically advanced and challenging anaesthetic field.
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Affiliation(s)
- Andrew J Burtenshaw
- Featherstone Department of Anaesthesia, University Hospital Birmingham, Birmingham, United Kingdom.
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22
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Hilmi IA, Planinsic RM. Con: venovenous bypass should not be used in orthotopic liver transplantation. J Cardiothorac Vasc Anesth 2006; 20:744-7. [PMID: 17023301 DOI: 10.1053/j.jvca.2006.06.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2006] [Indexed: 11/11/2022]
Affiliation(s)
- Ibtesam A Hilmi
- Division of Hepatic Transplantation Anesthesiology, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
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23
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Azoulay D, Andreani P, Maggi U, Salloum C, Perdigao F, Sebagh M, Lemoine A, Adam R, Castaing D. Combined liver resection and reconstruction of the supra-renal vena cava: the Paul Brousse experience. Ann Surg 2006; 244:80-8. [PMID: 16794392 PMCID: PMC1570596 DOI: 10.1097/01.sla.0000218092.83675.bc] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Liver tumors with inferior vena cava (IVC) involvement may require combined resection of the liver and IVC. This approach, with its high surgical risks and poor long-term prognosis, was precluded until the development of neoadjuvant chemotherapy, portal vein embolization, reinforced vascular prostheses, and technical advances in liver transplantation. METHODS We reviewed 22 cases of hepatectomy with retrohepatic IVC resection and reconstruction. The patients had a median age of 51.5 years (range, 32.8-75.3 years). Indications for resection were: liver metastases (n = 9), cholangiocarcinoma (n = 8), hepatocellular carcinoma (n = 2), other cancers (n = 3). The liver resections carried out included 18 first, 3 second, and one third hepatectomy. Segment 1 (caudate lobe) was included in the specimen in 19 cases (86%). Resection concerned 1 to 6 liver segments (median = 5.0). Vascular control was achieved by vascular exclusion of the liver preserving the caval flow (n = 1), standard vascular exclusion of the liver (n = 12), in situ cold perfusion of the liver (n = 9). Ex situ surgery was not necessary in any case. Venovenous bypass was used in 12 cases. The IVC was reconstructed with a ringed Gore-Tex tube graft (n = 10), primarily (n = 8), or by caval plasty (n = 4). A main hepatic vein was reimplanted in 6 cases: into the native IVC (n = 4) or into a Gore-Tex tube graft (n = 2). RESULTS One patient died (4.5%) due to catheter infection, 7 days after in situ cold perfusion with replacement of the vena cava. Eight patients (36%) had no complications and 14 patients (64%) had 23 complications. In all but 1 case, the complications were transient and successfully controlled. The patients stayed in intensive care for 3.3 +/- 2.0 days and in the hospital for 17.7 +/- 7.8 days. All vascular reconstructions were patent at last follow-up. With median follow-up of 19 months, 10 patients died of tumor recurrence and eleven were alive with (n = 5) or without (n = 6) disease. Actuarial 1-, 3-, and 5-year survival rates were 81.8%, 38.3%, and 38.3%, respectively. CONCLUSIONS IVC resection and reconstruction combined with liver resection can be safely performed in selected patients. The lack of alternative treatments and the spontaneous poor prognosis justify this approach, provided that surgery is carried out at a center specialized in both liver surgery and liver transplantation. The development of adjuvant chemotherapy regimens is required to improve the long-term results of this salvage surgery.
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Affiliation(s)
- Daniel Azoulay
- Centre Hépato-Biliaire, Hôpital Paul Brousse, Villejuif, France.
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24
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Desai DM, Kuo PC. Who should perform liver transplantation? Should that be the transplant surgeon, the hepatobilary surgeon, or the general surgeon? Part I: the transplant surgeon. J Hepatol 2006; 44:647-9. [PMID: 16503076 DOI: 10.1016/j.jhep.2006.01.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Affiliation(s)
- Dev M Desai
- Division of Transplant Surgery, Department of Surgery, Duke University School of Medicine, Bell Research Building, Suite 110, DUMC Box 3512, Durham, NC 27710, USA.
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25
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Jankovic Z, Boon A, Prasad R. Fatal haemothorax following large-bore percutaneous cannulation before liver transplantation. Br J Anaesth 2005; 95:472-6. [PMID: 16085686 DOI: 10.1093/bja/aei216] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Percutaneous bypass catheters are routinely used for veno-venous bypass (VVBP) during orthotopic liver transplantation (OLT). The recognized risks include bleeding, injury of vascular and nerve structures and lymphatic leakage. We describe a case where there were difficulties during catheterization and the patient suffered a cardiac arrest on commencing VVBP. Post-mortem examination revealed the bypass catheter tip in the pleural space and a large right haemothorax. Possible mechanisms of vascular perforation and preventative measures are discussed.
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Affiliation(s)
- Z Jankovic
- Department of Anaesthesia, St James's University Hospital, UK.
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26
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Eghtesad B, Kadry Z, Fung J. Technical considerations in liver transplantation: what a hepatologist needs to know (and every surgeon should practice). Liver Transpl 2005; 11:861-71. [PMID: 16035067 DOI: 10.1002/lt.20529] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Bijan Eghtesad
- Department of General Surgery, Cleveland Clinic Foundation, Cleveland, OH 44195, USA.
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27
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Reddy K, Mallett S, Peachey T. Venovenous bypass in orthotopic liver transplantation: time for a rethink? Liver Transpl 2005; 11:741-749. [PMID: 15973707 DOI: 10.1002/lt.20482] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Kalpana Reddy
- Department of Anaesthesia, Royal Free Hospital, London, United Kingdom
| | - Susan Mallett
- Department of Anaesthesia, Royal Free Hospital, London, United Kingdom
| | - Tim Peachey
- Department of Anaesthesia, Royal Free Hospital, London, United Kingdom
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28
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Azoulay D, Eshkenazy R, Andreani P, Castaing D, Adam R, Ichai P, Naili S, Vinet E, Saliba F, Lemoine A, Gillon MC, Bismuth H. In situ hypothermic perfusion of the liver versus standard total vascular exclusion for complex liver resection. Ann Surg 2005; 241:277-85. [PMID: 15650638 PMCID: PMC1356913 DOI: 10.1097/01.sla.0000152017.62778.2f] [Citation(s) in RCA: 104] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
SUMMARY BACKGROUND DATA We compare the results of liver resection performed under in situ hypothermic perfusion versus standard total vascular exclusion (TVE) of the liver <60 minutes and > or =60 minutes in terms of liver tolerance, liver and renal functions, postoperative morbidity, and mortality. The safe duration of TVE is still debated. Promising results have been reported following TVE associated with hypothermic perfusion of the liver with durations of up to several hours. The 2 techniques have not been compared so far. METHODS The study population includes 69 consecutive liver resections under TVE <60 minutes (group TVE<60', 33 patients), > or =60 minutes (group TVE> or =60', 16 patients), and in situ hypothermic perfusion (group TVEHYOPOTH, 20 patients). Liver tolerance (peaks of transaminases), liver and kidney function (peak of bilirubin, minimum prothrombin time, and peak of creatinine), morbidity, and in-hospital mortality were compared within the 3 groups. RESULTS The postoperative peaks of aspartate aminotransferase (IU/L) and alanine aminotransferase (IU/L) were significantly lower (P[r] < 0.05) in group TVE HYPOTH (450 +/- 298 IU/L and 390 +/- 391 IU/L) compared with the groups TVE<60' (1000 +/- 808; 853 +/- 743) and TVE> or =60' (1519 +/- 962; 1033 +/- 861). In the group TVEHYPOTH, the peaks of bilirubin (micromol/L) (84 +/- 31), creatinine (micromol/L) (75 +/- 22), and the number of complications per patient (1.2 +/- 0.9) were comparable to those of the group TVE<60' (80 +/- 111; 109 +/- 77; and 0.8 +/- 1.1 respectively) and significantly lower to those of the group TVE> or =60' (196 +/- 173; 176 +/- 176, and 2.6 +/- 1.8). In-hospital mortality rates were 1 in 33, 2 in 16, and 0 in 20 for the groups TVE<60', TVE> or =60', and TVEHYOPOTH, respectively, and were comparable. On multivariate analysis, the size of the tumor, portal vein embolization, and a planned vascular reconstruction were significantly predictive of TVE > or =60 minutes. CONCLUSIONS Compared with standard TVE of any duration, hypothermic perfusion of the liver is associated with a better tolerance to ischemia. In addition, compared with TVE > or =60 minutes, it is associated with better postoperative liver and renal functions and a lower morbidity. Predictive factors for TVE > or =60 minutes may help to indicate hypothermic perfusion of the liver.
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Affiliation(s)
- Daniel Azoulay
- Centre Hépato-Biliaire, Département de Chirurgie Hépato-Biliaire, IFR 89.9, Hôpital Paul Brousse, Villejuif, France.
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29
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Fan ST, Yong BH, Lo CM, Liu CL, Wong J. Right lobe living donor liver transplantation with or without venovenous bypass. Br J Surg 2003; 90:48-56. [PMID: 12520574 DOI: 10.1002/bjs.4026] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Venovenous bypass was considered necessary to maintain haemodynamic stability and avoid splanchnic and retroperitoneal congestion during the anhepatic phase of liver transplantation. It was essential for right lobe living donor liver transplantation (LDLT) in which the inferior vena cava needed to be cross-clamped to construct wide and short hepatic vein anastomoses. However, many complications related to venovenous bypass have been reported. This study aimed to determine whether venovenous bypass was necessary for right lobe LDLT. METHODS Between June 1996 and June 2001, 72 patients underwent right lobe LDLT. The outcomes for the first 29 patients who had venovenous bypass during the operation were compared with those of the remaining 43 patients who did not have venovenous bypass. In patients without bypass, blood pressure was maintained during the anhepatic phase by boluses of fluid infusion and vasopressors. RESULTS Compared with patients undergoing operation without venovenous bypass, patients who had venovenous bypass required significantly more blood, fresh frozen plasma and platelet infusion, and had a lower body temperature; their postoperative hepatic and renal function in the first week was worse than that in patients who did not have a bypass. The time to tracheal extubation was longer and the incidence of reintubation for ventilatory support was higher with venovenous bypass. Six of the 29 patients with venovenous bypass died in hospital, compared with two of the 43 patients without a bypass (P = 0.05). By multivariate analysis, the lowest body temperature during the transplant operation was the most significant factor that determined hospital death. CONCLUSION Venovenous bypass is not necessary and is probably harmful to patients undergoing right lobe LDLT, and should therefore be avoided.
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Affiliation(s)
- S T Fan
- Centre for the Study of Liver Disease, University of Hong Kong Medical Centre, Queen Mary Hospital, 102 Pokfulam Road, Hong Kong, China.
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