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2.
HPB (Oxford) ; 26(4): 586-593, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38341287

RESUMO

BACKGROUND: There are no data to evaluate the difference in populations and impact of centers with liver transplant programs in performing laparoscopic liver resection (LLR). METHODS: This was a multicenter study including patients undergoing LLR for benign and malignant tumors at 27 French centers from 1996 to 2018. The main outcomes were postoperative severe morbidity and mortality. RESULTS: A total of 3154 patients were included, and 14 centers were classified as transplant centers (N = 2167 patients, 68.7 %). The transplant centers performed more difficult LLRs and more resections for hepatocellular carcinoma (HCC) in patients who more frequently had cirrhosis. A higher rate of performing the Pringle maneuver, a lower rate of blood loss and a higher rate of open conversion (all p < 0.05) were observed in the transplant centers. There was no association between the presence of a liver transplant program and either postoperative severe morbidity (<10 % in each group; p = 0.228) or mortality (1 % in each group; p = 0.915). CONCLUSIONS: Most HCCs, difficult LLRs, and cirrhotic patients are treated in transplant centers. We show that all centers can achieve comparable safety and quality of care in LLR independent of the presence of a liver transplant program.


Assuntos
Carcinoma Hepatocelular , Laparoscopia , Neoplasias Hepáticas , Transplante de Fígado , Humanos , Carcinoma Hepatocelular/patologia , Neoplasias Hepáticas/patologia , Transplante de Fígado/efeitos adversos , Estudos Retrospectivos , Hepatectomia/efeitos adversos , Laparoscopia/efeitos adversos , Tempo de Internação , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/cirurgia
3.
Soins ; 68(878): 33-36, 2023 Sep.
Artigo em Francês | MEDLINE | ID: mdl-37657868

RESUMO

The aim of multi-organ harvesting is to remove and condition organs so that they can be transplanted. It is an extremely well codified surgical procedure, performed in a precise order. It is unique in that it involves different teams, each with its own specialization.

4.
Trials ; 24(1): 379, 2023 Jun 06.
Artigo em Inglês | MEDLINE | ID: mdl-37280696

RESUMO

BACKGROUND: Given the scarce donor supply, an increasing number of so-called marginal or extended criteria donor (ECD) organs are used for liver transplantation. These ECD liver grafts are however known to be associated with a higher rate of early allograft dysfunction and primary non-function because of a greater vulnerability to ischemia-reperfusion injury. The end-ischemic hypothermic oxygenated machine perfusion (HOPE) technique may improve outcomes of liver transplantation with ECD grafts by decreasing reperfusion injury. METHODS: HOPExt trial is a comparative open-label, multicenter, national, prospective, randomized, controlled study, in two parallel groups, using static cold storage, the gold standard procedure, as control. The trial will enroll adult patients on the transplant waiting list for liver failure or liver cirrhosis and/or liver malignancy requiring liver transplantation and receiving an ECD liver graft from a brain-dead donor. In the experimental group, ECD liver grafts will first undergo a classical static cold (4 °C) storage followed by a hypothermic oxygenated perfusion (HOPE) for a period of 1 to 4 h. The control group will consist of the classic static cold storage which is the gold standard procedure in liver transplantation. The primary objective of this trial is to study the efficacy of HOPE used before transplantation of ECD liver grafts from brain-dead donors in reducing postoperative early allograft dysfunction within the first 7 postoperative days compared to simple cold static storage. DISCUSSION: We present in this protocol all study procedures in regard to the achievement of the HOPExt trial, to prevent biased analysis of trial outcomes and improve the transparency of the trial results. Enrollment of patients in the HOPExt trial has started on September 10, 2019, and is ongoing. TRIAL REGISTRATION: ClinicalTrials.gov NCT03929523. Registered on April 29, 2019, before the start of inclusion.


Assuntos
Transplante de Fígado , Traumatismo por Reperfusão , Adulto , Humanos , Transplante de Fígado/efeitos adversos , Transplante de Fígado/métodos , Estudos Prospectivos , Preservação de Órgãos/efeitos adversos , Doadores de Tecidos , Fígado/patologia , Traumatismo por Reperfusão/etiologia , Traumatismo por Reperfusão/prevenção & controle , Perfusão/efeitos adversos , Perfusão/métodos , Sobrevivência de Enxerto
5.
Langenbecks Arch Surg ; 408(1): 149, 2023 Apr 13.
Artigo em Inglês | MEDLINE | ID: mdl-37052722

RESUMO

PURPOSE: A transjugular intrahepatic portosystemic shunt (TIPS) before the liver transplantation (LT) has been considered a contraindication in cases of hepatocellular carcinoma (HCC) because of the risk of tumour growth. We aimed to assess the impact of TIPS on incidental HCC and oncological outcomes in transplanted patients with pre-existing HCC. METHODS: All consecutive transplanted patients for cirrhosis who had a previous TIPS with or without HCC were included. Between 2007 and 2014, 1912 patients were transplanted. We included 122 (6.3%) patients having TIPS before LT. A 1:3 matched cohort of 366 patients (18.9%) having LT without previous TIPS was selected using a propensity score. Incidental HCC rate and risk factor of HCC recurrence were evaluated using multivariate analysis with a competing risk model. RESULTS: Before LT, in the TIPS group, 27 (22.1%) had an HCC vs. 81 (22.1%) in the control group (p = 1). The incidental HCC rate was similar: 10.5% (10/95) in the TIPS group vs. 6.3% (18/285) in the control group (p = 0.17). Recurrence occurred in 1/27 (3.7%) patient in the TIPS group and in 7/81 (8.6%) patients in the control group, without significant difference (p = 0.51). After multivariate regression, patient's gender (p < 0.01) was significantly associated with HCC recurrence while a tumour within Milan criteria (p = 0.01, sHR: 0.17 [0.04; 0.7]) and an incidental HCC (p<0.01) were found to be protector factors against HCC recurrence. CONCLUSION: TIPS did not worsen the prognosis of transplanted patients for HCC. TIPS should no longer be contraindicated for oncological reasons in patients with HCC waiting for an LT.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Transplante de Fígado , Humanos , Carcinoma Hepatocelular/cirurgia , Estudos Retrospectivos , Transplante de Fígado/efeitos adversos , Neoplasias Hepáticas/cirurgia , Pontuação de Propensão , Recidiva Local de Neoplasia/epidemiologia
6.
BJS Open ; 7(2)2023 03 07.
Artigo em Inglês | MEDLINE | ID: mdl-37032423

RESUMO

BACKGROUND: The Mayo protocol for liver transplantation in patients with unresectable perihilar cholangiocarcinoma is based on strict selection and neoadjuvant chemoradiotherapy. The role of neoadjuvant chemoradiotherapy in this scenario remains unclear. The aim of this study was to compare outcomes after transplantation for perihilar cholangiocarcinoma using strict selection criteria, either with or without neoadjuvant chemoradiotherapy. METHODS: This was an international, multicentre, retrospective cohort study of patients who underwent transplantation between 2011 and 2020 for unresectable perihilar cholangiocarcinoma using the Mayo selection criteria and receiving neoadjuvant chemoradiotherapy or not receiving neoadjuvant chemoradiotherapy. Endpoints were post-transplant survival, post-transplant morbidity rate, and time to recurrence. RESULTS: Of 49 patients who underwent liver transplantation for perihilar cholangiocarcinoma, 27 received neoadjuvant chemoradiotherapy and 22 did not. Overall 1-, 3-, and 5-year post-transplantation survival rates were 65 per cent, 51 per cent and 41 per cent respectively in the group receiving neoadjuvant chemoradiotherapy and 91 per cent, 68 per cent and 53 per cent respectively in the group not receiving neoadjuvant chemoradiotherapy (1-year hazards ratio (HR) 4.55 (95 per cent c.i. 0.98 to 21.13), P = 0.053; 3-year HR 2.07 (95 per cent c.i. 0.78 to 5.54), P = 0.146; 5-year HR 1.71 (95 per cent c.i. 0.71 to 4.09), P = 0.229). Hepatic vascular complications were more frequent in the group receiving neoadjuvant chemoradiotherapy compared with the group not receiving neoadjuvant chemoradiotherapy (nine of 27 versus two of 22, P = 0.045). In multivariable analysis, tumour recurrence occurred less frequently in the group receiving neoadjuvant chemoradiotherapy (HR 0.30 (95 per cent c.i. 0.09 to 0.97), P = 0.044). CONCLUSION: In selected patients undergoing liver transplantation for perihilar cholangiocarcinoma, neoadjuvant chemoradiotherapy resulted in a lower risk of tumour recurrence, but was associated with a higher rate of early hepatic vascular complications. Adjustments in neoadjuvant chemoradiotherapy reducing the risk of hepatic vascular complications, such as omitting radiotherapy, may further improve the outcome in patients undergoing liver transplantation for perihilar cholangiocarcinoma.


Assuntos
Neoplasias dos Ductos Biliares , Colangiocarcinoma , Tumor de Klatskin , Transplante de Fígado , Humanos , Tumor de Klatskin/cirurgia , Tumor de Klatskin/patologia , Terapia Neoadjuvante , Recidiva Local de Neoplasia/patologia , Estudos Retrospectivos , Ductos Biliares Intra-Hepáticos/patologia
7.
Hepatobiliary Surg Nutr ; 11(1): 1-12, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35284512

RESUMO

Background: Few studies have analyzed outcomes of liver transplantation (LT) when the recipient hepatic artery (HA) was not usable. Methods: We retrospectively evaluated the outcomes of LT performed using the different alternative sites to HA. Results: Between 2002 and 2017, 1,677 LT were performed in our institution among which 141 (8.4%) with unusable recipient HA were analyzed. Four groups were defined according to the site of anastomosis: the splenic artery (SA group, n=26), coeliac trunk (CT group, n=12), aorta using or not the donor's vessel (Ao group, n=91) and aorta using a vascular prosthesis (Ao-P group, n=12) as conduit. The median number of intraoperative red blood cell transfusions was significantly increased in the Ao and Ao-P groups (5, 5, 8.5 and 16 for SA, CT, Ao and Ao-P group respectively, P=0.002), as well as fresh frozen plasma (4.5, 2.5, 10, 17 for the SA, CT, Ao and Ao-P groups respectively, P=0.001). Hospitalization duration was also significantly increased in the Ao and Ao-P groups (15, 16, 24, 26.5 days for the SA, CT, Ao and Ao-P groups respectively, P<0.001). The occurrence of early allograft dysfunction (EAD) (P=0.07) or arterial complications (P=0.26) was not statistically different. Level of factor V, INR, bilirubin and creatinine during the 7th postoperative days (POD) was significantly improved in the SA group. No difference was observed regarding graft (P=0.18) and patient (P=0.16) survival. Conclusions: In case of unusable HA, intraoperative and postoperative outcomes are improved when using the SA or CT compared to aorta.

8.
Transplantation ; 106(7): 1411-1420, 2022 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-34966104

RESUMO

BACKGROUND: The ABO blood group system may influence tumorigenesis, but its prognostic value in liver transplantation (LT) for hepatocellular carcinoma (HCC) has never been assessed. METHODS: All consecutive patients who underwent LT for HCC between 2013 and 2017 at 9 centers were analyzed. Predictors of tumor recurrence were identified using multivariable analysis, while comparison between group A and non-A recipients was performed after propensity score matching. RESULTS: Among 925 LT recipients, 406 were blood group A, 94 group B, 380 group O, and 45 group AB. On multivariable analysis, group A was associated with tumor recurrence (hazard ratio [HR] = 1.574 [95% confidence interval; 95% CI = 1.034-2.394] P = 0.034). After propensity score matching, 1- and 5-y recurrence rates were 7.4% and 20.1% in group A recipients versus 3.3% and 13.2% in non-A recipients (HR = 1.66 [95% CI = 1.12-2.45], P = 0.011). One and 5-y recurrence-free survivals were 85.2% and 66.8% in group A recipients versus 88.5% and 71.3% in non-A recipients (HR = 1.38 [95% CI = 1.01-1.90], P = 0.045). Among recipients within Milan criteria (n = 604), 1- and 5-y recurrence rates were 5.8% and 12.7% in group A recipients versus 3.1% and 12.2% in non-A recipients (HR = 1.197 [95% CI = 0.721-1.987], P = 0.485). Among recipients outside Milan criteria (n = 182), 1- and 5-y recurrence rates were 12.1% and 43.8% in group A recipients versus 3.9% and 15.6% in non-A recipients (HR = 3.175 [95% CI = 1.526-6.608], P = 0.002). CONCLUSIONS: ABO blood system influences the oncological outcome of recipients undergoing LT for HCC. Its incorporation in the prognostication model of LT for HCC may allow improving the management of LT candidates.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Transplante de Fígado , Sistema ABO de Grupos Sanguíneos , Carcinoma Hepatocelular/patologia , Humanos , Neoplasias Hepáticas/patologia , Transplante de Fígado/efeitos adversos , Recidiva Local de Neoplasia/patologia , Estudos Retrospectivos , Fatores de Risco
9.
Artif Organs ; 46(2): 201-209, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34866205

RESUMO

BACKGROUND: During donor organ procurement and subsequent static cold storage (SCS), hepatic adenosine triphosphate (ATP) levels are progressively depleted, which contributes to ischemia-reperfusion injury (IRI). We sought to investigate a simple approach to prevent ATP depletion and IRI using a porcine donation after circulatory death (DCD) liver reperfusion model. METHODS: After 30 min warm ischemia, porcine livers were flushed via the portal vein with cold (4°C) non-oxygenated University of Wisconsin (UW) preservation solution (n = 6, control group) or with oxygenated UW (n = 6, OxyFlush group). Livers were then subjected to 4 h SCS in non-oxygenated (control) or oxygenated (OxyFlush) UW, followed by 4 h normothermic reperfusion using whole blood. Hepatic ATP levels were compared, and hepatobiliary function and injury were assessed. RESULTS: At the end of SCS, ATP was higher in the OxyFlush group compared to controls (delta ATP of +0.26 vs. -0.68 µmol/g protein, p = 0.04). All livers produced bile and metabolized lactate, and there were no differences between the groups. Grafts in the OxyFlush group had lower blood glucose levels after reperfusion (p = 0.04). Biliary pH, glucose and bicarbonate were not different between the groups. Injury markers including liver transaminases, lactate dehydrogenase, malondialdehyde, cell-free DNA and flavin mononucleotide in the SCS solution and during reperfusion were also similar. Histological assessment of the parenchyma and bile ducts did not reveal differences between the groups. CONCLUSION: Oxygenated flush out and storage of DCD porcine livers prevents ATP depletion during ischemia, but this does not seem sufficient to mitigate early signs of IRI.


Assuntos
Trifosfato de Adenosina/metabolismo , Transplante de Fígado , Oxigênio/farmacologia , Traumatismo por Reperfusão/prevenção & controle , Animais , Bile/química , Feminino , Fígado/química , Fígado/fisiopatologia , Preservação de Órgãos/métodos , Soluções para Preservação de Órgãos , Reperfusão , Traumatismo por Reperfusão/metabolismo , Sus scrofa
10.
Ann Surg ; 276(6): e825-e833, 2022 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-33605587

RESUMO

OBJECTIVE: To evaluate the short- and long-term outcomes of RPA in a large multicentric series. SUMMARY BACKGROUND: The current knowledge on RPA for portal reconstruction during LT in patients with diffuse PVT and a large splenorenal shunt is poor and limited to case reports and small case series. METHODS: All consecutive LTs with RPA performed in 5 centers between 1998 and 2020 were included. RPA was physiological provided it drained the splanchnic venous return through a large splenorenal shunt (≥ 1 cm diameter). Complications of PHT, long-term RPA patency, and patient and graft survival were assessed. RPA success was achieved provided the 3 following criteria were all fulfilled: patients were alive with patent RPA and without clinical PHT. RESULTS: RPA was attempted and feasible in 57 consecutive patients and was physiological in 51 patients (89.5%). Ninety-day mortality occurred in 5 (8.5%) patients, and PHT-related complications occurred in 42.9% of patients. With a median follow-up of 63 months, the 1-, 3- and 5-year patient and graft survival rates were 87%, 83%, and 76% and 82%, 80%, and 73%, respectively. The primary and primary-assisted patency rates at 5 years were 84.5% and 94.3%, respectively. Success was achieved in 90% (27/30) of patients with a follow-up ≥5 years. CONCLUSIONS: Despite a high rate of PHT-related complications, excellent long-term patient and graft survival could be achieved. RPA could be considered successful in the vast majority of patients. The expanded use of RPA is warranted.


Assuntos
Hepatopatias , Transplante de Fígado , Trombose Venosa , Humanos , Transplante de Fígado/métodos , Veia Porta/cirurgia , Veias Renais/cirurgia , Anastomose Cirúrgica/métodos , Trombose Venosa/cirurgia , Trombose Venosa/complicações , Hepatopatias/complicações
11.
Transpl Int ; 34(10): 1948-1958, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34145653

RESUMO

The impact of donor age on the recurrence of hepatocellular carcinoma (HCC) after liver transplantation is still debated. Between 2002 and 2014, all patients transplanted for HCC in 2 European liver transplantation tertiary centres were retrospectively reviewed. Risk factors for HCC recurrence were assessed using competing risk analysis, and the impact of donor age < or ≥65 years and < or ≥80 years was specifically evaluated after propensity score matching. 728 patients transplanted with a median follow-up of 86 months were analysed. The 1-, 3- and 5-year recurrence rates were 4.9%, 10.7% and 13.9%, respectively. In multivariable analysis, recipient age (sHR: 0.96 [0.93; 0.98], P < 0.01), number of lesions (sHR: 1.05 [1.04; 1.06], P < 0.001), maximum size of the lesions (sHR: 1.37 [1.27; 1.48], P < 0.01), presence of a hepatocholangiocarcinoma (sHR: 6.47 [2.91; 14.38], P < 0.01) and microvascular invasion (sHR: 3.48 [2.42; 5.02], P < 0.01) were significantly associated with HCC recurrence. After propensity score matching, neither donor age ≥65 (P = 0.29) nor donor age ≥80 (P = 0.84) years increased the risk of HCC recurrence. In conclusion, donor age was not found to be a risk factor for HCC recurrence. Patients listed for HCC can receive a graft from an elderly donor without compromising the outcome.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Transplante de Fígado , Idoso , Carcinoma Hepatocelular/etiologia , Humanos , Lactente , Neoplasias Hepáticas/etiologia , Transplante de Fígado/efeitos adversos , Doadores Vivos , Recidiva Local de Neoplasia/epidemiologia , Estudos Retrospectivos , Medição de Risco , Fatores de Risco
12.
Ann Surg ; 274(6): 1032-1042, 2021 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-31972653

RESUMO

OBJECTIVE: The aims of the present study were to identify independent risk factors for conduit occlusion, compare outcomes of different AC placement sites, and investigate whether postoperative platelet antiaggregation is protective. BACKGROUND: Arterial conduits (AC) in liver transplantation (LT) offer an effective rescue option when regular arterial graft revascularization is not feasible. However, the role of the conduit placement site and postoperative antiaggregation is insufficiently answered in the literature. STUDY DESIGN: This is an international, multicenter cohort study of adult deceased donor LT requiring AC. The study included 14 LT centers and covered the period from January 2007 to December 2016. Primary endpoint was arterial occlusion/patency. Secondary endpoints included intra- and perioperative outcomes and graft and patient survival. RESULTS: The cohort was composed of 565 LT. Infrarenal aortic placement was performed in 77% of ACs whereas supraceliac placement in 20%. Early occlusion (≤30 days) occurred in 8% of cases. Primary patency was equivalent for supraceliac, infrarenal, and iliac conduits. Multivariate analysis identified donor age >40 years, coronary artery bypass, and no aspirin after LT as independent risk factors for early occlusion. Postoperative antiaggregation regimen differed among centers and was given in 49% of cases. Graft survival was significantly superior for patients receiving aggregation inhibitors after LT. CONCLUSION: When AC is required for rescue graft revascularization, the conduit placement site seems to be negligible and should follow the surgeon's preference. In this high-risk group, the study supports the concept of postoperative antiaggregation in LT requiring AC.


Assuntos
Aorta Abdominal/cirurgia , Transplante de Fígado , Fígado/irrigação sanguínea , Trombose/prevenção & controle , Procedimentos Cirúrgicos Vasculares , Adulto , Anastomose Cirúrgica , Anticoagulantes/administração & dosagem , Feminino , Sobrevivência de Enxerto , Humanos , Masculino , Pessoa de Meia-Idade , Medição de Risco , Fatores de Risco , Trombose/etiologia , Grau de Desobstrução Vascular
13.
JAMA Surg ; 155(9): e202291, 2020 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-32667635

RESUMO

Importance: Although standardization of pancreaticoduodenectomy (PD) has improved postoperative outcomes, morbidity remains high. Fast-track surgery programs appear to improve morbidity, and avoiding nasogastric tube decompression (NGTD), already outdated in most major abdominal surgery, is strongly suggested after PD by fast-track surgery programs but lacks high-level evidence, especially regarding safety. Objective: To assess in a randomized clinical trial whether the absence of systematic NGTD after PD reduces postoperative complications. Design, Setting, and Participants: The IPOD study (Impact of the Absence of Nasogastric Decompression After Pancreaticoduodenectomy) was an open-label, prospective, single-center, randomized clinical trial conducted at a high-volume pancreatic surgery university hospital in France. In total, 155 patients who were 18 to 75 years of age and required PD for benign or malignant disease were screened for study eligibility. Key exclusion criteria were previous gastric or esophageal surgery and severe comorbidities. Patients were randomly assigned (1:1) to systematic NGTD or to no nasogastric decompression and were followed up until 90 days after surgery. Interventions: For patients without NGTD, the NGT was removed immediately after surgery, whereas for patients with NGTD, the NGT was removed 3 to 5 days after surgery. Main Outcomes and Measures: The primary end point was the occurrence of postoperative complications grade II or higher using the Clavien-Dindo classification. The primary end point and safety were evaluated in the intent-to-treat population. Results: From January 2016 to August 2018, 125 screened patients were considered eligible for the study, and 111 were randomized to no NGTD (n = 52) or to NGTD (n = 59). No patient was lost to follow-up. The 2 groups had similar patient demographic and clinical characteristics at baseline. The median (interquartile range) age was 63.0 (57.0-66.5) years in the group with NGTD (38 [64.4%] were males) and 64.0 (58.0-68.0) years in the group without NGTD (31 [59.6%] were males). The postoperative complication rates grade II or higher were similar between the 2 groups (risk ratio, 0.99; 95% CI, 0.66-1.47; P > .99). Pulmonary complication rates (risk ratio, 0.59; 95% CI, 0.18-1.95; P = .44) and delayed gastric emptying rates (risk ratio, 1.07; 95% CI, 0.52-2.21; P > .99) were not significantly different between the groups. Median (interquartile) length of hospital stay for patients without NGTD was not significantly different compared with those with NGTD (10.0 [9.0-16.3] vs 12.0 [10.0-16.0] days; P = .14). Conclusions and Relevance: The present study found no significant difference in postoperative complication occurrence of Clavien-Dindo classification grade II or higher between systematic NGTD and no NGTD after PD, suggesting that avoiding systematic nasogastric decompression is safe for this indication. Trial Registration: ClinicalTrials.gov Identifier: NCT02594956.


Assuntos
Intubação Gastrointestinal , Pancreatopatias/cirurgia , Pancreaticoduodenectomia/efeitos adversos , Complicações Pós-Operatórias/prevenção & controle , Idoso , Descompressão Cirúrgica , Feminino , França , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Pancreatopatias/patologia , Estudos Prospectivos
14.
World J Gastroenterol ; 26(16): 1938-1949, 2020 Apr 28.
Artigo em Inglês | MEDLINE | ID: mdl-32390704

RESUMO

BACKGROUND: Liver transplantation (LT) is the best treatment for patients with liver cancer or end stage cirrhosis, but it is still associated with a significant mortality. Therefore identifying factors associated with mortality could help improve patient management. The impact of iron metabolism, which could be a relevant therapeutic target, yield discrepant results in this setting. Previous studies suggest that increased serum ferritin is associated with higher mortality. Surprisingly iron deficiency which is a well described risk factor in critically ill patients has not been considered. AIM: To assess the impact of pre-transplant iron metabolism parameters on post-transplant survival. METHODS: From 2001 to 2011, 553 patients who underwent LT with iron metabolism parameters available at LT evaluation were included. Data were prospectively recorded at the time of evaluation and at the time of LT regarding donor and recipient. Serum ferritin (SF) and transferrin saturation (TS) were studied as continuous and categorical variable. Cox regression analysis was used to determine mortality risks factors. Follow-up data were obtained from the local and national database regarding causes of death. RESULTS: At the end of a 95-mo median follow-up, 196 patients were dead, 38 of them because of infections. In multivariate analysis, overall mortality was significantly associated with TS > 75% [HR: 1.73 (1.14; 2.63)], SF < 100 µg/L [HR: 1.62 (1.12; 2.35)], hepatocellular carcinoma [HR: 1.58 (1.15; 2.26)], estimated glomerular filtration rate (CKD EPI Cystatin C) [HR: 0.99 (0.98; 0.99)], and packed red blood cell transfusion [HR: 1.05 (1.03; 1.08)]. Kaplan Meier curves show that patients with low SF (< 100 µg/L) or high SF (> 400 µg/L) have lower survival rates at 36 mo than patients with normal SF (P = 0.008 and P = 0.016 respectively). Patients with TS higher than 75% had higher mortality at 12 mo (91.4% ± 1.4% vs 84.6% ± 3.1%, P = 0.039). TS > 75% was significantly associated with infection related death [HR: 3.06 (1.13; 8.23)]. CONCLUSION: Our results show that iron metabolism imbalance (either deficiency or overload) is associated with post-transplant overall and infectious mortality. Impact of iron supplementation or depletion should be assessed in prospective study.


Assuntos
Infecções/mortalidade , Ferro/metabolismo , Transplante de Fígado/efeitos adversos , Complicações Pós-Operatórias/mortalidade , Carcinoma Hepatocelular/sangue , Carcinoma Hepatocelular/complicações , Carcinoma Hepatocelular/epidemiologia , Carcinoma Hepatocelular/cirurgia , Doença Hepática Terminal/sangue , Doença Hepática Terminal/etiologia , Doença Hepática Terminal/mortalidade , Doença Hepática Terminal/cirurgia , Feminino , Ferritinas/sangue , Ferritinas/metabolismo , Seguimentos , Humanos , Infecções/etiologia , Ferro/sangue , Neoplasias Hepáticas/sangue , Neoplasias Hepáticas/complicações , Neoplasias Hepáticas/epidemiologia , Neoplasias Hepáticas/cirurgia , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/epidemiologia , Complicações Pós-Operatórias/etiologia , Estudos Prospectivos , Estudos Retrospectivos , Medição de Risco/métodos , Fatores de Risco , Taxa de Sobrevida , Transferrina/análise , Transferrina/metabolismo
15.
World J Surg ; 44(10): 3537-3544, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32445073

RESUMO

Inferior vena cava leiomyosarcoma (IVCL) is a rare tumor with a poor prognosis, and its surgical resection remains a challenge. To date, surgery is the only potentially curative treatment for IVCL with a 5-year survival rate of 55%. The main challenge is to combine oncological surgery with clear margins and vascular reconstruction of the inferior vena cava (IVC). In this review, we discuss the different approaches to vascular reconstruction after IVCL resection, using a prosthetic or autologous patch, direct suture or simple ligation without IVC reconstruction. The reconstruction of IVC depends of tumor location and its extension. We recommend no reconstruction if venous collaterality is well-established. When vascular reconstruction is required, we prefer prosthetic PTFE graft. These patients should be referred to high-volume centers with a multidisciplinary team of sarcoma surgeons with cardiothoracic, vascular and hepatic specialties.


Assuntos
Leiomiossarcoma/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Neoplasias Vasculares/cirurgia , Veia Cava Inferior/cirurgia , Humanos , Leiomiossarcoma/patologia , Equipe de Assistência ao Paciente , Neoplasias Vasculares/patologia , Veia Cava Inferior/patologia
16.
Eur J Gastroenterol Hepatol ; 32(2): 222-230, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31464783

RESUMO

OBJECTIVES: To evaluate the diagnostic performance of B-mode ratio and shear wave elastography (SWE) for the assessment of steatosis and liver fibrosis after liver transplantation. MATERIALS AND METHODS: Patients hospitalized for a systematic check-up after liver transplantation underwent the same day hepatic ultrasound with B-mode ratio and SWE, followed by liver biopsy and biological examinations. Steatosis was measured using hepatorenal sonographic index of B-mode ratio and liver stiffness using SWE. Liver biopsy, used as gold standard, graded steatosis S0(<5%), S1(5-<33%), S2(33-<66%), or S3(≥66%) and liver fibrosis according to the Metavir score. The results were tested against two external validation cohorts. RESULTS: Fifty-eight patients were included. Mean B-ratio value was significantly higher in patients with steatosis (0.95 ± 0.13 versus 1.39 ± 0.41, P < 0.001). A B-mode ratio cutoff values at least 0.985 was found optimal for steatosis' detection [area under the receiver operating characteristic curve (AUROC) 0.902 ± 0.05, sensitivity 95%, specificity 79%]. A B-mode ratio value below 0.9 ruled out steatosis and above 1.12 ruled in steatosis. Mean SWE value for patients without significant fibrosis (≤F1) was 15.90 ± 9.2 versus 19.27 ± 7.7 kPa for patients with fibrosis (P = 0.185). A 2D-SWE value below 7.85 kPa ruled out significant fibrosis and above 26.35 kPa ruled it in. CONCLUSION: The B-mode ratio is an efficient and accurate tool for the noninvasive diagnostic of steatosis in postliver transplantation patients. Yet, because liver stiffness is higher in postliver transplantation patients, 2D-SWE is not reliable in the diagnosis of significant fibrosis after liver transplantation.


Assuntos
Técnicas de Imagem por Elasticidade , Fígado Gorduroso , Transplante de Fígado , Fígado Gorduroso/diagnóstico por imagem , Fígado Gorduroso/etiologia , Fígado Gorduroso/patologia , Humanos , Fígado/diagnóstico por imagem , Fígado/patologia , Cirrose Hepática/diagnóstico por imagem , Cirrose Hepática/patologia , Transplante de Fígado/efeitos adversos
17.
Indian J Cancer ; 56(1): 83-85, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30950452

RESUMO

Portal vein leiomyosarcoma (LMS) is a very rare entity with poor prognosis. Only few cases have been reported in the literature. We report the case of a 53-year-old man with portal vein LMS presenting as a hilar tumor and causing cholestasis. The tumor measured 10 cm and was responsible for right portal vein thrombosis and compression of the biliary convergence. A right hepatectomy with hilar en bloc resection was performed with portal vein and biliary reconstruction. Pathology confirmed the complete resection of a well-differentiated leiomyosarcoma of the portal vein. The postoperative outcome was uneventful and the patient received no adjuvant treatment. Six months after the procedure, the patient is doing well with a normal quality of life and without any sign of recurrence. Aggressive and radical surgery should be proposed in first intention for the treatment of portal vein LMS.


Assuntos
Neoplasias dos Ductos Biliares/complicações , Tumor de Klatskin/complicações , Leiomiossarcoma/complicações , Neoplasias Hepáticas/complicações , Veia Porta/patologia , Neoplasias dos Ductos Biliares/cirurgia , Hepatectomia , Humanos , Tumor de Klatskin/cirurgia , Leiomiossarcoma/cirurgia , Neoplasias Hepáticas/cirurgia , Masculino , Pessoa de Meia-Idade , Veia Porta/cirurgia , Qualidade de Vida
19.
Artigo em Inglês | MEDLINE | ID: mdl-30505968

RESUMO

Hepatocellular carcinoma (HCC) is one of the most indication to Liver Transplantation (LT). Milan criteria are worldwide accepted as the gold standard for LT indication for HCC. Nevertheless, expanded criteria are often used to transplant patient outside Milan. We described the most important proposed criteria outside Milan criteria. From the University of California San Francisco, to the Toronto criteria. From East to Western, and for living donor liver transplantation. In order to achieve similar results the downstaging strategy is more frequently used and for patients with locally advanced HCC. Carefully selected patients beyond the traditional criteria for transplantation may achieve excellent LT outcomes through a planned, multidisciplinary approach to treatment.

20.
BMC Cancer ; 18(1): 844, 2018 Aug 23.
Artigo em Inglês | MEDLINE | ID: mdl-30139340

RESUMO

BACKGROUND: The majority of patients undergoing hepatectomy for hepatocellular carcinoma (HCC) suffer from underlying liver disease and are exposed to the risk of postoperative ascites, which is favored by an imbalance between portal venous inflow and a diminished hepatic volume. Finding a reversible, non-invasive method for modulating the portal inflow would be of interest as it could be used temporarily during the early postoperative course. Somatostatin, a well-known drug already used in several indications, may limit the risk of postoperative ascites and liver failure by decreasing portal pressure after hepatectomy for HCC in patients with underlying liver disease. We aimed to evaluate the impact of somatostatin postoperative infusion on the incidence of ascites following hepatectomy by laparotomy for HCC in patients with underlying liver disease. METHODS/DESIGN: The SOMAPROTECT study is a multicenter randomized double-blind placebo controlled phase III trial comparing two arms of patients with underlying liver disease undergoing hepatectomy for HCC by open approach. All patients will have primary abdominal drainage before closure. Patients in the experimental arm will receive a postoperative intravenous infusion of somatostatin during 6 days. Patients in the control group will receive a placebo infusion for the same duration. The primary endpoint will be the presence or absence of postoperative ascites occurring during the 90-day postoperative course, defined as ≥500 ml/24 h of fluid in the drains during at least 3 days or any ascites requiring an invasive procedure comprising percutaneous puncture or drainage. Secondary endpoints will be duration and total volume of ascites, postoperative 90-day mortality and morbidity, liver failure, acute renal failure, length of stay in intensive care unit and hospital stay. The total number of patients to be enrolled was calculated to be 152. DISCUSSION: Postoperative ascites remains a major issue after hepatectomy for HCC as it is associated with increased morbidity, liver and renal failure, the need for specific treatments and prolonged hospital stay. This study represents the first randomized controlled trial to assess the benefits of somatostatin on the risk of postoperative ascites after surgery for HCC. TRIAL REGISTRATION: NCT02799212 (ClinicalTrials.gov identifier). Registered prior to conducting the research on 9 June 2016.


Assuntos
Ascite/tratamento farmacológico , Carcinoma Hepatocelular/tratamento farmacológico , Neoplasias Hepáticas/tratamento farmacológico , Somatostatina/administração & dosagem , Adulto , Idoso , Ascite/patologia , Carcinoma Hepatocelular/complicações , Carcinoma Hepatocelular/patologia , Carcinoma Hepatocelular/cirurgia , Método Duplo-Cego , Feminino , Hepatectomia/efeitos adversos , Humanos , Laparotomia/efeitos adversos , Neoplasias Hepáticas/complicações , Neoplasias Hepáticas/patologia , Neoplasias Hepáticas/cirurgia , Masculino , Pessoa de Meia-Idade , Veia Porta/efeitos dos fármacos , Veia Porta/patologia , Período Pós-Operatório
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