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1.
Ann Surg ; 272(5): 855-862, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32889867

RESUMO

OBJECTIVE: The aim of this study was to evaluate the survival benefit of sirolimus in patients undergoing liver transplantation (LT) for hepatocellular carcinoma (HCC) (exploratory analysis of the SiLVER-trial). SUMMARY AND BACKGROUND DATA: Patients receiving LT) for HCC are at a high risk for tumor recurrence. Calcineurin inhibitors have shown evidence to promote cancer growth, whereas mammalian target of rapamycin (mTOR) inhibitors like sirolimus have anticancer effects. In the SiLVER-trial (Clinicaltrials.gov: NCT00355862), the effect of sirolimus on the recurrence of HCC after LT was investigated in a prospective randomized trial. Although the primary endpoint of improved disease-free survival (DFS) with sirolimus was not met, outcomes were improved for patients in the sirolimus-treatment arm in the first 3 to 5 years. To learn more about the key variables, a multivariate analysis was performed on the SiLVER-trial data. PATIENTS AND METHODS: Data from 508 patients of the intention-to-treat analysis were included in exploratory univariate and multivariate models for overall survival (OS), DFS and a competing risk analysis for HCC recurrence. RESULTS: Sirolimus use for ≥3 months after LT for HCC independently reduced the hazard for death in the multivariate analysis [hazard ratio (HR): 0.7 (95% confidence interval, CI: 0.52-0.96, P = 0.02). Most strikingly, patients with an alpha-fetoprotein (AFP) ≥10 ng/mL and having used sirolimus for ≥3 months, benefited most with regard to OS, DFS, and HCC-recurrence (HR: 0.49-0.59, P = 0.0079-0.0245). CONCLUSIONS: mTOR-inhibitor treatment with sirolimus for ≥3 months improves outcomes in LT for HCC, especially in patients with AFP-evidence of higher tumor activity, advocating particularly for mTOR inhibitor use in this subgroup of patients. CLINICAL TRIAL REGISTRATION: EudraCT: 2005-005362-36 CLINICALTRIALS.GOV:: NCT00355862.


Assuntos
Carcinoma Hepatocelular/cirurgia , Imunossupressores/uso terapêutico , Neoplasias Hepáticas/cirurgia , Transplante de Fígado , Recidiva Local de Neoplasia/prevenção & controle , Sirolimo/uso terapêutico , Idoso , Carcinoma Hepatocelular/mortalidade , Feminino , Humanos , Análise de Intenção de Tratamento , Neoplasias Hepáticas/mortalidade , Transplante de Fígado/mortalidade , Masculino , Pessoa de Meia-Idade , Taxa de Sobrevida
2.
J Hepatol ; 71(2): 313-322, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-31071367

RESUMO

BACKGROUND & AIMS: Little is known about outcomes of liver transplantation for patients with non-alcoholic steatohepatitis (NASH). We aimed to determine the frequency and outcomes of liver transplantation for patients with NASH in Europe and identify prognostic factors. METHODS: We analysed data from patients transplanted for end-stage liver disease between January 2002 and December 2016 using the European Liver Transplant Registry database. We compared data between patients with NASH versus other aetiologies. The principle endpoints were patient and overall allograft survival. RESULTS: Among 68,950 adults undergoing first liver transplantation, 4.0% were transplanted for NASH - an increase from 1.2% in 2002 to 8.4% in 2016. A greater proportion of patients transplanted for NASH (39.1%) had hepatocellular carcinoma (HCC) than non-NASH patients (28.9%, p <0.001). NASH was not significantly associated with survival of patients (hazard ratio [HR] 1.02, p = 0.713) or grafts (HR 0.99; p = 0.815) after accounting for available recipient and donor variables. Infection (24.0%) and cardio/cerebrovascular complications (5.3%) were the commonest causes of death in patients with NASH without HCC. Increasing recipient age (61-65 years: HR 2.07, p <0.001; >65: HR 1.72, p = 0.017), elevated model for end-stage liver disease score (>23: HR 1.48, p = 0.048) and low (<18.5 kg/m2: HR 4.29, p = 0.048) or high (>40 kg/m2: HR 1.96, p = 0.012) recipient body mass index independently predicted death in patients transplanted for NASH without HCC. Data must be interpreted in the context of absent recognised confounders, such as pre-morbid metabolic risk factors. CONCLUSIONS: The number and proportion of liver transplants performed for NASH in Europe has increased from 2002 through 2016. HCC was more common in patients transplanted with NASH. Survival of patients and grafts in patients with NASH is comparable to that of other disease indications. LAY SUMMARY: The prevalence of non-alcoholic fatty liver disease has increased dramatically in parallel with the worldwide increase in obesity and diabetes. Its progressive form, non-alcoholic steatohepatitis, is a growing indication for liver transplantation in Europe, with good overall outcomes reported. However, careful risk factor assessment is required to maintain favourable post-transplant outcomes in patients with non-alcoholic steatohepatitis.


Assuntos
Doença Hepática Terminal/cirurgia , Sobrevivência de Enxerto , Transplante de Fígado/efeitos adversos , Hepatopatia Gordurosa não Alcoólica/cirurgia , Adulto , Fatores Etários , Índice de Massa Corporal , Carcinoma Hepatocelular/complicações , Carcinoma Hepatocelular/mortalidade , Europa (Continente) , Feminino , Humanos , Neoplasias Hepáticas/complicações , Neoplasias Hepáticas/mortalidade , Masculino , Pessoa de Meia-Idade , Hepatopatia Gordurosa não Alcoólica/complicações , Hepatopatia Gordurosa não Alcoólica/mortalidade , Estudos Prospectivos , Sistema de Registros , Estudos Retrospectivos , Fatores de Risco , Doadores de Tecidos , Resultado do Tratamento
3.
Transpl Int ; 31(12): 1293-1317, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-30259574

RESUMO

The purpose of this registry study was to provide an overview of trends and results of liver transplantation (LT) in Europe from 1968 to 2016. These data on LT were collected prospectively from 169 centers from 32 countries, in the European Liver Transplant Registry (ELTR) beginning in 1968. This overview provides epidemiological data, as well as information on evolution of techniques, and outcomes in LT in Europe over more than five decades; something that cannot be obtained from only a single center experience.


Assuntos
Hepatopatias/cirurgia , Neoplasias Hepáticas/cirurgia , Transplante de Fígado/estatística & dados numéricos , Sistema de Registros , Adolescente , Adulto , Idoso , Criança , Europa (Continente)/epidemiologia , Feminino , Geografia , Sobrevivência de Enxerto , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Reoperação , Inquéritos e Questionários , Tempo para o Tratamento , Doadores de Tecidos , Adulto Jovem
4.
Pancreas ; 46(10): 1314-1321, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28902764

RESUMO

OBJECTIVES: The aims of this study were to (i) identify independent predictors of survival after pancreaticoduodenectomy for ampullary cancer and (ii) develop a prognostic model of survival. METHODS: Data were analyzed retrospectively on 110 consecutive patients who underwent pancreaticoduodenectomy between 2002 and 2013. Subjects were categorized into 3 nodal subgroups as per the recently proposed nodal subclassification: N0 (node negative), N1 (1-2 metastatic nodes), or N2 (≥3 metastatic nodes). Clinicopathological features and overall survival were compared by Kaplan-Meier and Cox regression analyses. RESULTS: The overall 1-, 3-, and 5-year survival rates were 79.8%, 42.2%, and 34.9%, respectively. The overall 1-, 3-, and 5-year survival rates for the N0 group were 85.2%, 71.9%, and 67.4%, respectively. The 1-, 3-, 5-year survival rates for the N1 and N2 subgroups were 81.5%, 49.4%, and 49.4% and 75%, 19.2%, and 6.4%, respectively (log rank, P < 0.0001). After performing a multivariate Cox regression analysis, vascular invasion and lymph node ratio were the only independent predictors of survival. Hence, a prediction model of survival was constructed based on those 2 variables. CONCLUSIONS: Using data from a carefully selected cohort of patients, we created a pilot prognostic model of postresectional survival. The proposed model may help clinicians to guide treatments in the adjuvant setting.


Assuntos
Ampola Hepatopancreática/cirurgia , Neoplasias do Ducto Colédoco/cirurgia , Neoplasias Pancreáticas/cirurgia , Pancreaticoduodenectomia/métodos , Modelos de Riscos Proporcionais , Adulto , Idoso , Idoso de 80 Anos ou mais , Ampola Hepatopancreática/patologia , Neoplasias do Ducto Colédoco/patologia , Feminino , Humanos , Estimativa de Kaplan-Meier , Metástase Linfática , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Neoplasias Pancreáticas/patologia , Projetos Piloto , Prognóstico , Estudos Retrospectivos
5.
J Am Coll Surg ; 222(5): 760-5, 2016 05.
Artigo em Inglês | MEDLINE | ID: mdl-27113513

RESUMO

BACKGROUND: Multivisceral transplantation (transplantation of the stomach, intestine, liver, and pancreas) is usually undertaken as a semi-elective procedure after thorough assessment in patients who have intestinal failure with cirrhosis, cirrhosis with portomesenteric venous thrombosis, or tumors such as desmoids involving the liver and mesentery. STUDY DESIGN: Data were collected prospectively from the time of referral and held in a central database. We used it to report the first cases of urgent multivisceral transplantation (MVT) in patients with widespread splanchnic ischemia (occlusion of the celiac axis and superior mesenteric artery) resulting in small bowel infarction and hepatic failure. RESULTS: Three women (ages 33, 48, and 50 years) were referred to our center with superior mesenteric artery and celiac axis occlusion. All other modes of treatment had been considered and/or attempted. After transfer to our institution, all patients were assessed, urgently listed, and underwent transplantation in 10, 7, and 5 days. Two patients are still alive after 2 years and 1 died at 8 months from multiorgan failure due to infections and graft vs host disease. CONCLUSIONS: Treatment options for patients presenting with widespread splanchnic ischemia with hepatic and intestinal failure/infarction were previously limited to salvage surgery and attempted revascularization. In situations in which these failed, the only previous option would have been palliation. In selected cases, we propose that urgent multivisceral transplantation should be considered as a life-saving treatment. This represents a previously unreported indication for MVT.


Assuntos
Arteriopatias Oclusivas/cirurgia , Artéria Celíaca , Isquemia/cirurgia , Artéria Mesentérica Superior , Transplante de Órgãos/métodos , Vísceras/irrigação sanguínea , Adulto , Arteriopatias Oclusivas/complicações , Feminino , Humanos , Intestino Delgado/irrigação sanguínea , Intestino Delgado/transplante , Falência Hepática/cirurgia , Transplante de Fígado , Pessoa de Meia-Idade , Transplante de Pâncreas , Circulação Esplâncnica , Estômago/irrigação sanguínea , Estômago/transplante , Fatores de Tempo
6.
Transplantation ; 100(1): 116-25, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26555945

RESUMO

BACKGROUND: We investigated whether sirolimus-based immunosuppression improves outcomes in liver transplantation (LTx) candidates with hepatocellular carcinoma (HCC). METHODS: In a prospective-randomized open-label international trial, 525 LTx recipients with HCC initially receiving mammalian target of rapamycin inhibitor-free immunosuppression were randomized 4 to 6 weeks after transplantation into a group on mammalian target of rapamycin inhibitor-free immunosuppression (group A: 264 patients) or a group incorporating sirolimus (group B: 261). The primary endpoint was recurrence-free survival (RFS); intention-to-treat (ITT) analysis was conducted after 8 years. Overall survival (OS) was a secondary endpoint. RESULTS: Recurrence-free survival was 64.5% in group A and 70.2% in group B at study end, this difference was not significant (P = 0.28; hazard ratio [HR], 0.84; 95% confidence interval [95% CI], 0.62; 1.15). In a planned analysis of RFS rates at yearly intervals, group B showed better outcomes 3 years after transplantation (HR, 0.7; 95% CI, 0.48-1.00). Similarly, OS (P = 0.21; HR, 0.81; 95% CI, 0.58-1.13) was not statistically better in group B at study end, but yearly analyses showed improvement out to 5 years (HR, 0.7; 95% CI, 0.49-1.00). Interestingly, subgroup (Milan Criteria-based) analyses revealed that low-risk, rather than high-risk, patients benefited most from sirolimus; furthermore, younger recipients (age ≤60) also benefited, as well sirolimus monotherapy patients. Serious adverse event numbers were alike in groups A (860) and B (874). CONCLUSIONS: Sirolimus in LTx recipients with HCC does not improve long-term RFS beyond 5 years. However, a RFS and OS benefit is evident in the first 3 to 5 years, especially in low-risk patients. This trial provides the first high-level evidence base for selecting immunosuppression in LTx recipients with HCC.


Assuntos
Carcinoma Hepatocelular/cirurgia , Imunossupressores/uso terapêutico , Neoplasias Hepáticas/cirurgia , Transplante de Fígado , Sirolimo/uso terapêutico , Adulto , Fatores Etários , Idoso , Austrália , Canadá , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/patologia , Progressão da Doença , Intervalo Livre de Doença , Quimioterapia Combinada , Europa (Continente) , Feminino , Humanos , Análise de Intenção de Tratamento , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Transplante de Fígado/efeitos adversos , Transplante de Fígado/mortalidade , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Estudos Prospectivos , Medição de Risco , Fatores de Risco , Serina-Treonina Quinases TOR/antagonistas & inibidores , Serina-Treonina Quinases TOR/metabolismo , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
7.
Medicine (Baltimore) ; 94(6): e499, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25674740

RESUMO

Pancreatic cancer is known for its typically late presentation and poor survival rates, with overall 5-year survival of less than 5%. The role of chemotherapy alone or with radiotherapy in the management of locally advanced tumors continues to be an area of debate.We report a case of locally advanced, pancreatic adenosquamous carcinoma that was initially deemed unresectable intraoperatively. Nonetheless, the tumor was resected after radiological response to gemcitabine-capecitabine chemoradiotherapy regimen similar to the Selective Chemoradiation in Advanced LOcalised Pancreatic cancer trial. Histological examination revealed complete pathological response with extensive fibrosis (ypT0 N0). On 12-month follow-up CT, a single liver lesion in the left lateral segment was identified and confirmed to be a metastasis with cytological diagnosis via EUS and FNA. The disease remained stable and confined to the solitary hepatic metastasis after further gemcitabine chemotherapy. Therefore, a further successful resection was performed.The 2 main strategies for the management of locally advanced unresectable pancreatic cancer are chemotherapy induction followed by consolidation chemoradiotherapy or chemotherapy alone, with conflicting published evidence. Evidence for the optimal management of the rare histological type of adenosquamous carcinoma is scant. We present a case of such tumor with a complete pathological response to chemoradiotherapy. The results of future studies in the area are eagerly awaited.


Assuntos
Carcinoma Adenoescamoso/tratamento farmacológico , Carcinoma Adenoescamoso/cirurgia , Neoplasias Pancreáticas/tratamento farmacológico , Neoplasias Pancreáticas/cirurgia , Pancreaticoduodenectomia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Capecitabina , Carcinoma Adenoescamoso/patologia , Quimiorradioterapia , Terapia Combinada , Desoxicitidina/administração & dosagem , Desoxicitidina/análogos & derivados , Feminino , Fluoruracila/administração & dosagem , Fluoruracila/análogos & derivados , Humanos , Pessoa de Meia-Idade , Neoplasias Pancreáticas/patologia , Terapia de Salvação , Gencitabina
8.
Pancreatology ; 15(2): 179-84, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25579809

RESUMO

BACKGROUND: Post-operative pancreatic fistula (POPF) is the major source of morbidity following pancreaticoduodenectomy. A predictive indicator would be highly advantageous. One potential marker is drain amylase concentration (DAC). However, its predictive value has not been fully established. METHODS: 405 patients undergoing pancreaticoduodenectomy at our centre over a 10 year period were reviewed to determine the value of DAC as a predictive indicator for the development of POPF. RESULTS: POPF developed in 58 patients (14%). These patients suffered greater morbidity. Overall 30-day mortality was 1.5%. Male gender (OR: 5.1; p = 0.0082) and age > 70 (OR 2; p = 0.0372) were independent risk factors for POPF, whilst Type 2 diabetes (OR: 0.2321; p = 0.0090) and pancreatic ductal-adenocarcinoma (OR: 0.3721; p = 0.0039) decreased POPF risk. The DACs post-operatively were significantly higher in those developing POPF, but with significant overlap. ROC curves revealed optimal threshold values for differentiating POPF and non-POPF patients. A DAC°<°1400 U/ml on day 1 and <768 U/ml on day 2, although having a poor positive predictive value (32-44%), had a very strong negative predictive value (97-99%). CONCLUSION: Our data suggest that post-operative DAC below the determined optimal threshold values on day 1 and 2 following pancreaticoduodenectomy carries high negative predictive value for POPF development and identifies patients in whom early drain removal, and enhanced recovery may be considered, with simultaneous assessment of operative and clinical factors.


Assuntos
Amilases/análise , Fístula Pancreática/enzimologia , Fístula Pancreática/etiologia , Pancreaticoduodenectomia/efeitos adversos , Complicações Pós-Operatórias/diagnóstico , Complicações Pós-Operatórias/etiologia , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Carcinoma Ductal Pancreático/complicações , Carcinoma Ductal Pancreático/cirurgia , Drenagem , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fístula Pancreática/epidemiologia , Neoplasias Pancreáticas/complicações , Neoplasias Pancreáticas/cirurgia , Cuidados Pós-Operatórios , Complicações Pós-Operatórias/epidemiologia , Valor Preditivo dos Testes , Fatores de Risco , Fatores Sexuais , Resultado do Tratamento , Adulto Jovem
9.
Int J Surg Case Rep ; 5(12): 988-91, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25460454

RESUMO

INTRODUCTION: Primary closure of the abdominal wall following intestinal transplantation or multivisceral transplantation could become a challenging problem in a significant number of patients. PRESENTATION OF CASE: A 38-year-old woman with familial adenomatous polyposis (FAP) underwent a multi-visceral transplantation for short gut syndrome. She subsequently developed acute graft rejection that proved resistant to conventional treatment. She was relisted and underwent re-transplantation along with kidney transplantation. Abdominal wall closure could not be achieved because of the large size of the graft and bowel oedema. The wound was initially managed with laparostomy followed by insertion of the delayed dynamic abdominal closure (DDAC) device (Abdominal Retraction Anchor - ABRA(®) system). Continuous dynamic traction to the wound edges resulted in gradual approximation and complete closure of the abdominal wound was achieved within 3 weeks. DISCUSSION: Successful abdominal closure after multivisceral transplantation or isolated intestinal transplantation often requires biological mesh, vascularised flaps or abdominal wall transplantation. DDAC eliminated the need for a prosthetic mesh or skin graft and provided an excellent cosmetic result. Adjustment of the dynamic traction at the bedside minimised the need for multiple returns to the operating theatre. It resulted in a well-healed linear scar without a hernia. CONCLUSION: Dynamic traction allows delayed closure of laparotomy resulting in strong and cosmetically sound wound healing with native tissue.

10.
J Surg Oncol ; 110(3): 313-9, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24737685

RESUMO

BACKGROUND AND OBJECTIVES: Actual long-term survival of patients with colorectal liver metastases staged by PET CT has not been reported. Objectives were to investigate whether PET CT staging results in actual improved long-term survival, to examine outcome in patients with 'equivocal' PET CT scans, and those excluded from hepatectomy by PET CT. METHODS: A retrospective analysis of patients undergoing hepatectomy for colorectal liver metastases between March 1998 and September 2008. RESULTS: Overall 5- and 10-year survival was 44.8% and 23.9%. PET CT staging resulted in management changes in 23% of patients. PET CT staged patients showed significantly better survival than those staged by CT alone at 3 years (79.8% vs. 54.1%) and at 5 years (54.1% vs. 37.3%) with median survivals of 6.4 years versus 3.9 years (log rank P = 0.018). Patients with equivocal PET CT scans showed worse median survival than those with favourable PET CT (log rank P = 0.002), but may include a subpopulation whose prognosis trends towards a more favourable outcome than those excluded from liver resection by PET CT, whose median survival remains limited to 21 months. CONCLUSIONS: Staging of patients with colorectal liver metastases by PET CT is associated with significantly improved actual long-term survival, and provides valuable prognostic information which guides surgical and oncological treatments.


Assuntos
Adenocarcinoma/secundário , Neoplasias Colorretais/patologia , Neoplasias Hepáticas/secundário , Tomografia por Emissão de Pósitrons , Tomografia Computadorizada por Raios X , Adenocarcinoma/mortalidade , Adenocarcinoma/patologia , Adenocarcinoma/cirurgia , Idoso , Quimioterapia Adjuvante , Neoplasias Colorretais/mortalidade , Neoplasias Colorretais/terapia , Feminino , Fluordesoxiglucose F18 , Hepatectomia , Humanos , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/cirurgia , Masculino , Pessoa de Meia-Idade , Imagem Multimodal/métodos , Estadiamento de Neoplasias , Seleção de Pacientes , Compostos Radiofarmacêuticos , Estudos Retrospectivos
11.
Surgeon ; 10(5): 267-72, 2012 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-22959160

RESUMO

BACKGROUND: Laparoscopic adrenalectomy (LA) is the gold standard for benign adrenal resection, and has been performed at our centre since 2000. We present a retrospective audit of our ten-year experience, and discuss the learning curve. METHODS: Creating a retrospective database, clinical and outcome data were collected for all resections performed over a ten-year period (2000-2010). Patients were chronologically divided into an 'early' (first 40 cases) and 'late' (subsequent cases) group to provide an insight into the learning curve. RESULTS: Over this period, 134 laparoscopic resections were performed, predominantly for benign adenomas (80.3%), with 48% of patients having primary hyperaldosteronism. There was almost equal sex distribution and mean age was 50.2 years, with a median BMI of 28.2. The mean operating time for left and right procedures were 127 and 124 min respectively, with 56.7% of resections being left sided. Our rate of conversion to open was 3.9%. Median length of stay was 4 days post-operatively. There was no mortality and 8.7% patients experienced a surgical complication. Analysis of the grouped data demonstrated a statistically significant reduction in open conversion rate (p = 0.017) and operative time (p = 0.011) in the 'late' group. Among the two groups there was no statistically significant difference in the length of stay and surgical complication rate. All results were comparable to published series in the literature. CONCLUSION: LA has proven to be a safe procedure with a low complication rate at our centre. Our data provide evidence that operative time and conversion rate improves with experience.


Assuntos
Adenoma/cirurgia , Neoplasias das Glândulas Suprarrenais/cirurgia , Adrenalectomia/métodos , Laparoscopia/métodos , Feocromocitoma/cirurgia , Adolescente , Adulto , Idoso , Feminino , Humanos , Curva de Aprendizado , Tempo de Internação , Masculino , Auditoria Médica , Pessoa de Meia-Idade , Adulto Jovem
13.
J Hepatol ; 57(2): 297-305, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22521348

RESUMO

BACKGROUND & AIMS: The role of liver transplantation in the treatment of hepatocellular carcinoma in livers without fibrosis/cirrhosis (NC-HCC) is unclear. We aimed to determine selection criteria for liver transplantation in patients with NC-HCC. METHODS: Using the European Liver Transplant Registry, we identified 105 patients who underwent liver transplantation for unresectable NC-HCC. Detailed information about patient, tumor characteristics, and survival was obtained from the transplant centers. Variables associated with survival were identified using univariate and multivariate statistical analyses. RESULTS: Liver transplantation was primary treatment in 62 patients and rescue therapy for intrahepatic recurrences after liver resection in 43. Median number of tumors was 3 (range 1-7) and median tumor size 8 cm (range 0.5-30). One- and 5-year overall and tumor-free survival rates were 84% and 49% and 76% and 43%, respectively. Macrovascular invasion (HR 2.55, 95% CI 1.34 to 4.86), lymph node involvement (HR 2.60, 95% CI 1.28 to 5.28), and time interval between liver resection and transplantation < 12 months (HR 2.12, 95% CI 0.96 to 4.67) were independently associated with survival. Five-year survival in patients without macrovascular invasion or lymph node involvement was 59% (95% CI 47-70%). Tumor size was not associated with survival. CONCLUSIONS: This is the largest reported series of patients transplanted for NC-HCC. Selection of patients without macrovascular invasion or lymph node involvement, or patients ≥ 12months after previous liver resection, can result in 5-year survival rates of 59%. In contrast to HCC in cirrhosis, tumor size is not a predictor of post-transplant survival in NC-HCC.


Assuntos
Carcinoma Hepatocelular/cirurgia , Neoplasias Hepáticas/cirurgia , Transplante de Fígado , Adolescente , Adulto , Idoso , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/patologia , Criança , Pré-Escolar , Feminino , Humanos , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Metástase Linfática , Masculino , Pessoa de Meia-Idade , Invasividade Neoplásica , Taxa de Sobrevida
14.
Pancreatology ; 12(1): 8-15, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22487467

RESUMO

OBJECTIVE: Current practice to diagnose pancreatic cancer is accomplished by endoscopic ultrasound guided fine needle aspiration (EUS-FNA) using a cytological approach. This method is time consuming and often fails to provide suitable specimens for modern molecular analyses. Here, we compare the cytological approach with direct formalin fixation of pancreatic EUS-FNA micro-cores and evaluate the potential to perform molecular biomarker analysis on these specimen. METHODS: 130 specimens obtained by EUS-FNA with a 22G needle were processed by the standard cytological approach and compared to a separate cohort of 130 specimens that were immediately formalin fixed to preserve micro-cores of tissue prior to routine histological processing. RESULTS: We found that direct formalin fixation significantly shortened the time required for diagnosis from 3.6 days to 2.9 days (p<0.05) by reducing the average time (140 vs 33 min/case) and number of slides (9.65 vs 4.67 slides/case) for histopathological processing. Specificity and sensitivity yielded comparable results between the two approaches (82.3% vs 77% and 90.9% vs 100%). Importantly, EUS-FNA histology preserved the tumour tissue architecture with neoplastic glands embedded in stroma in 67.89% of diagnostic cases compared to 27.55% with the standard cytological approach (p < 0.001). Furthermore, micro-core samples were suitable for molecular studies including the immunohistochemical detection of intranuclear Hes1 in malignant cells, and the laser-capture microdissection-mediated measurement of Gli-1 mRNA in tumour stromal myofibroblasts. CONCLUSIONS: Direct formalin fixation of pancreatic EUS-FNA micro-cores demonstrates superiority regarding diagnostic delay, costs, and specimen suitability for molecular studies. We advocate this approach for future investigational trials in pancreatic cancer patients.


Assuntos
Biomarcadores Tumorais/análise , Biópsia por Agulha Fina/métodos , Endossonografia/métodos , Neoplasias Pancreáticas/diagnóstico por imagem , Adulto , Idoso , Idoso de 80 Anos ou mais , Fatores de Transcrição Hélice-Alça-Hélice Básicos/análise , Feminino , Fixadores , Formaldeído , Proteínas de Homeodomínio/análise , Humanos , Imuno-Histoquímica , Masculino , Pessoa de Meia-Idade , Neoplasias Pancreáticas/patologia , Estudos Retrospectivos , Sensibilidade e Especificidade , Fatores de Tempo , Fatores de Transcrição HES-1 , Ultrassonografia de Intervenção
15.
J Hepatobiliary Pancreat Sci ; 19(6): 656-60, 2012 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-22159823

RESUMO

BACKGROUND: Right accessory hepatic artery (RAHA) injury at retrieval is a rare complication of deceased liver procurement. Arterial reconstruction is often required under these circumstances which could potentially increase the risk of hepatic artery thrombosis (HAT). The aim of this study is to investigate whether RAHA injury affects the incidence of HAT, early biliary complications, or 3-month graft and patient survival rates. METHODS: All adult liver transplants performed between 1994 and February 2007 at Addenbrooke's Hospital, Cambridge, UK were considered for inclusion in the study. Grafts were divided into three groups depending on the presence of RAHA and injury (Group 1: normal anatomy and single hepatic artery anastomosis; Group 2: RAHA requiring reconstruction; Group 3: RAHA injury requiring reconstruction). RESULTS: Eight hundred and forty-four liver transplants were included in the study (Group 1: 654 grafts; Group 2: 63 grafts; Group 3: 14 grafts). The incidence of HAT (Group 1, 2.9%; Group 2, 6.4%; Group 3, 14.3%) was significantly different between the three groups (P = 0.01); biliary complications at 3 months (Group 1, 7.1%; Group 2, 11.1%; Group 3, 7.1%) were not significantly different. Graft and patient survival at 3 months were significantly worse in Group 3 when compared with Group 2 (61.5 vs. 88.3%, P = 0.01; 81.8 vs. 98.2%, P = 0.02). CONCLUSION: This is the first study analysing the clinical impact of RAHA injury during liver procurement. We conclude that the use of liver grafts with RAHA injury does result in a higher HAT rate and is also associated with lower graft and patient survival rates at 3 months.


Assuntos
Artéria Hepática/lesões , Hepatopatias/cirurgia , Transplante de Fígado/métodos , Doadores de Tecidos , Coleta de Tecidos e Órgãos/métodos , Procedimentos Cirúrgicos Vasculares/métodos , Adulto , Sobrevivência de Enxerto , Artéria Hepática/cirurgia , Humanos , Incidência , Fígado/cirurgia , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/prevenção & controle , Estudos Retrospectivos , Reino Unido/epidemiologia
16.
Transplantation ; 91(12): 1392-7, 2011 Jun 27.
Artigo em Inglês | MEDLINE | ID: mdl-21516065

RESUMO

BACKGROUND: Liver transplantation in the presence of cholangiocarcinoma (CCA) generally carries a poor prognosis. However, the outcome of patients found to have incidental CCA (iCCA) on explanted liver histology is less clear. We have evaluated the outcomes of iCCA in our liver transplant population. METHODS: A retrospective search was made of the transplantation and histopathology databases for patients fulfilling our definition for iCCA. All records, including archived histopathologic slides were retrieved and analyzed. RESULTS: Of 1288 patients undergoing liver transplantation over the 20-year period 1988-2008, nine were found to have iCCA (0.70%). Seven of the nine patients underwent liver transplantation for primary sclerosing cholangitis. Three additional patients who were transplanted for presumed hepatocellular carcinoma that subsequently turned out to be CCA were identified, but excluded from survival analysis. The majority of tumors were early stage (T2 or below), but five (55.6%) had positive biliary transection margins. Median follow-up was 51 months. Five patients (55.6%) developed recurrence of CCA after a median interval of 25.8 months, giving a disease-free survival of 100% at 1 year and 66.7% at 3 years. Three patients have died of recurrence, with a median interval from transplantation of 25 months. The overall 3-year survival was 66.7%. CONCLUSIONS: Patients found to have iCCA after liver transplantation have a relatively poor prognosis. Prospective liver transplant recipients, especially those with primary sclerosing cholangitis, should be investigated rigorously to exclude CCA.


Assuntos
Colangiocarcinoma/diagnóstico , Falência Hepática/diagnóstico , Falência Hepática/terapia , Neoplasias Hepáticas/diagnóstico , Transplante de Fígado/métodos , Adulto , Idoso , Colangiocarcinoma/complicações , Feminino , Humanos , Achados Incidentais , Falência Hepática/complicações , Neoplasias Hepáticas/complicações , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Recidiva , Estudos Retrospectivos , Resultado do Tratamento
17.
BMC Cancer ; 10: 190, 2010 May 11.
Artigo em Inglês | MEDLINE | ID: mdl-20459775

RESUMO

BACKGROUND: The potential anti-cancer effects of mammalian target of rapamycin (mTOR) inhibitors are being intensively studied. To date, however, few randomised clinical trials (RCT) have been performed to demonstrate anti-neoplastic effects in the pure oncology setting, and at present, no oncology endpoint-directed RCT has been reported in the high-malignancy risk population of immunosuppressed transplant recipients. Interestingly, since mTOR inhibitors have both immunosuppressive and anti-cancer effects, they have the potential to simultaneously protect against immunologic graft loss and tumour development. Therefore, we designed a prospective RCT to determine if the mTOR inhibitor sirolimus can improve hepatocellular carcinoma (HCC)-free patient survival in liver transplant (LT) recipients with a pre-transplant diagnosis of HCC. METHODS/DESIGN: The study is an open-labelled, randomised, RCT comparing sirolimus-containing versus mTOR-inhibitor-free immunosuppression in patients undergoing LT for HCC. Patients with a histologically confirmed HCC diagnosis are randomised into 2 groups within 4-6 weeks after LT; one arm is maintained on a centre-specific mTOR-inhibitor-free immunosuppressive protocol and the second arm is maintained on a centre-specific mTOR-inhibitor-free immunosuppressive protocol for the first 4-6 weeks, at which time sirolimus is initiated. A 21/2 -year recruitment phase is planned with a 5-year follow-up, testing HCC-free survival as the primary endpoint. Our hypothesis is that sirolimus use in the second arm of the study will improve HCC-free survival. The study is a non-commercial investigator-initiated trial (IIT) sponsored by the University Hospital Regensburg and is endorsed by the European Liver and Intestine Transplant Association; 13 countries within Europe, Canada and Australia are participating. DISCUSSION: If our hypothesis is correct that mTOR inhibition can reduce HCC tumour growth while simultaneously providing immunosuppression to protect the liver allograft from rejection, patients should experience less post-transplant problems with HCC recurrence, and therefore could expect a longer and better quality of life. A positive outcome will likely change the standard of posttransplant immunosuppressive care for LT patients with HCC. TRIAL REGISTER: Trial registered at http://www.clinicaltrials.gov: NCT00355862(EudraCT Number: 2005-005362-36).


Assuntos
Carcinoma Hepatocelular/tratamento farmacológico , Carcinoma Hepatocelular/cirurgia , Imunossupressores/uso terapêutico , Peptídeos e Proteínas de Sinalização Intracelular/antagonistas & inibidores , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/cirurgia , Transplante de Fígado , Proteínas Serina-Treonina Quinases/antagonistas & inibidores , Sirolimo/uso terapêutico , Austrália , Canadá , Carcinoma Hepatocelular/enzimologia , Carcinoma Hepatocelular/mortalidade , Intervalo Livre de Doença , Europa (Continente) , Humanos , Peptídeos e Proteínas de Sinalização Intracelular/metabolismo , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/enzimologia , Neoplasias Hepáticas/mortalidade , Transplante de Fígado/efeitos adversos , Transplante de Fígado/mortalidade , Estudos Prospectivos , Proteínas Serina-Treonina Quinases/metabolismo , Recidiva , Fatores de Risco , Serina-Treonina Quinases TOR , Fatores de Tempo , Transplante Homólogo , Resultado do Tratamento
18.
JOP ; 11(3): 226-9, 2010 May 05.
Artigo em Inglês | MEDLINE | ID: mdl-20442516

RESUMO

CONTEXT: Pancreatic leak following pancreaticoduodenectomy has a major impact on postoperative mortality. However, it is not clear whether pancreatic leaks affect long term survival in patients with pancreatic ductal adenocarcinoma. OBJECTIVE: The aim of this study is to compare the long term outcome in patients who underwent pancreaticoduodenectomy, with and without postoperative pancreatic leak. PATIENTS: All 133 patients who underwent a pancreaticoduodenectomy at the HepatoPancreatoBiliary Unit, Addenbrooke's Hospital, Cambridge, between June 2002 and June 2007 were identified from a prospectively held database. The study was restricted to 47 patients who had a confirmed diagnosis of pancreatic ductal adenocarcinoma. SETTING: Pancreatic leak was defined as drain fluid amylase more than three times the serum level for more than 3 days post operatively. MAIN OUTCOME MEASURE: Long term survival of patients with and without leaks were compared using Kaplan-Meier curves and significance was measured using the log-rank test. RESULTS: Median follow-up was 30.8 months. The median actuarial survival of all ductal adenocarcinoma patients was 19 months. Pancreatic leaks occurred in 9 patients (19.1%). There were no significant differences in the overall survival or presence of recurrence between the two groups. CONCLUSIONS: Pancreatic leak following pancreaticoduodenectomy does not appear to impact on long-term outcome of patients with pancreatic ductal adenocarcinoma.


Assuntos
Carcinoma Ductal Pancreático/mortalidade , Neoplasias Pancreáticas/mortalidade , Pancreaticoduodenectomia/mortalidade , Complicações Pós-Operatórias/mortalidade , Adenocarcinoma Mucinoso/mortalidade , Adenocarcinoma Mucinoso/cirurgia , Amilases/metabolismo , Carcinoma Ductal Pancreático/cirurgia , Carcinoma Papilar/mortalidade , Carcinoma Papilar/cirurgia , Colangiocarcinoma/mortalidade , Colangiocarcinoma/cirurgia , Bases de Dados Factuais , Neoplasias Duodenais/mortalidade , Neoplasias Duodenais/cirurgia , Feminino , Seguimentos , Humanos , Estimativa de Kaplan-Meier , Masculino , Neoplasias Pancreáticas/cirurgia , Complicações Pós-Operatórias/metabolismo
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