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1.
Br J Surg ; 109(1): 71-78, 2021 12 17.
Artigo em Inglês | MEDLINE | ID: mdl-34643677

RESUMO

BACKGROUND: The therapeutic value of repeat hepatic resection (rHR) or radiofrequency ablation (RFA) for recurrent hepatocellular carcinoma (HCC) is unknown. This study aimed to investigate the safety and efficacy of rHR or RFA. METHODS: This was a retrospective multicentre study of patients with recurrent HCC within the Milan criteria who underwent rHR or RFA at nine university hospitals in China and Italy between January 2003 and January 2018. Survival after rHR or RFA was examined in unadjusted analyses and after propensity score matching (1 : 1). RESULTS: Of 847 patients included, 307 and 540 underwent rHR and RFA respectively. Median overall survival was 73.5 and 67.0 months after rHR and RFA respectively (hazard ratio 1.01 (95 per cent c.i. 0.81 to 1.26)). Median recurrence-free survival was longer after rHR versus RFA (23.6 versus 15.2 months; hazard ratio 0.76 (95 per cent c.i. 0.65 to 0.89)). These results were confirmed after propensity score matching. RFA was associated with lower morbidity of grade 3 and above (0.6 versus 6.2 per cent; P < 0.001) and shorter hospital stay (8.0 versus 3.0 days, P < 0.001) than rHR. CONCLUSION: rHR was associated with longer recurrence-free survival but not overall survival compared with RFA.


Assuntos
Carcinoma Hepatocelular/cirurgia , Hepatectomia , Neoplasias Hepáticas/cirurgia , Recidiva Local de Neoplasia/cirurgia , Ablação por Radiofrequência , Intervalo Livre de Doença , Feminino , Hepatectomia/efeitos adversos , Humanos , Masculino , Pessoa de Meia-Idade , Ablação por Radiofrequência/efeitos adversos , Estudos Retrospectivos , Análise de Sobrevida , Resultado do Tratamento
2.
BJS Open ; 3(2): 186-194, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30957066

RESUMO

Background: Markers of tumour biology may be valuable prognostic indicators after hepatic resection of colorectal cancer liver metastases (CRLMs). Identification of the aggressiveness of these metastases might inform the appropriateness of hepatic surgery. Methods: Patients undergoing liver resection for CRLMs between January 2001 and July 2013 in four tertiary hospitals were reviewed. A mathematical model to estimate CRLM doubling times was constructed for patients with metachronous metastases. Tumour doubling time was investigated in relation to the features of colorectal cancer, including KRAS status. The hazard rate for recurrence and death following hepatectomy was explored through the Kernel-smoothed estimator. Results: Of 1063 patients undergoing liver resection for CRLMs, 361 with metachronous metastases undergoing single-stage hepatectomy were analysed. The mean doubling time in patients not receiving chemotherapy between surgery for colorectal cancer and CRLM was 71·4 days. Tumour doubling time was shorter in patients with more advanced primary tumour stages, with mutant KRAS and in those who did not receive chemotherapy. For fast-growing CRLMs (doubling time less than 48 days), the risk of recurrence was highest within the first postoperative year, and was about 7 per cent per month. Conclusion: Primary features of colorectal cancer were linked to aggressiveness of CRLMs as measured by doubling time.


Assuntos
Neoplasias Colorretais/patologia , Hepatectomia , Neoplasias Hepáticas/cirurgia , Recidiva Local de Neoplasia/epidemiologia , Carga Tumoral , Idoso , Colo/patologia , Neoplasias Colorretais/genética , Neoplasias Colorretais/mortalidade , Intervalo Livre de Doença , Feminino , Seguimentos , Humanos , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/secundário , Masculino , Pessoa de Meia-Idade , Modelos Biológicos , Recidiva Local de Neoplasia/genética , Recidiva Local de Neoplasia/patologia , Estadiamento de Neoplasias , Prognóstico , Proteínas Proto-Oncogênicas p21(ras)/genética , Reto/patologia , Fatores de Tempo
3.
Transplant Proc ; 51(1): 167-170, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30655158

RESUMO

BACKGROUND: Graft selection strategy in living donor liver transplantation (LDLT) is usually multifactorial, but special attention is paid to the determination of donor liver volumes to minimize any risk of posthepatectomy liver failure (PHLF). Hepatobiliary scintigraphy (HBS) with single-photon-emission computed tomography allows for the measurement of total and future liver remnant function (FLR-F) and has been shown to predict the risk of PHLF more accurately than liver volumetry. METHODS: Since November 2016, HBS has been performed at our Institution in every candidate to major hepatectomy, including potential living liver donors. RESULTS: Thirty-seven consecutive patients were submitted to HBS, of whom 7 were potential living liver donors. After completed hepatectomy (n = 27), the median FLR-F of patients who developed PHLF (n = 9) was 1.72%/min/m2 (range 1.40-2.78) compared to that of patients who did not (n = 18), which was 4.02%/min/m2 (range 1.15-12.08). Three donors underwent operations (1 right hepatectomy and 2 left hepatectomies). In the only donor who developed PHLF, the FLR accounted for the 37% of the total liver volume, whereas the FLR represented only the 31% of the total liver function (TL-F = 11.29%/min) with a resulting FLR-F of 2.05%/min/m2. CONCLUSIONS: The present study suggests that a non-invasive low-cost exam such as HBS may be a promising tool to predict PHLF not only in neoplastic patients but also to evaluate potential living donors. Larger studies are needed to draw any conclusion regarding the benefits of HBS in the living liver donor workup.


Assuntos
Testes de Função Hepática/métodos , Transplante de Fígado/métodos , Fígado/diagnóstico por imagem , Doadores Vivos , Cintilografia/métodos , Adulto , Idoso , Feminino , Humanos , Fígado/cirurgia , Doadores Vivos/provisão & distribuição , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
4.
Br J Surg ; 104(2): e172-e181, 2017 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28121031

RESUMO

BACKGROUND: Bacterial infection in patients with liver failure can lead to a dramatic clinical deterioration. The indications for liver transplantation and outcome in these patients is still controversial. METHODS: All adult patients who underwent liver transplantation between 1 January 2010 and 31 December 2015 were selected from an institutional database. Characteristics of the donors and recipients, and clinical, biochemical and surgical parameters were retrieved from the database. Post-transplant survival rates and complications, including grade III-IV complications according to the Dindo-Clavien classification, were compared between patients with an infection 1 month before transplantation and patients without an infection. RESULTS: Eighty-four patients with an infection had statistically significant higher Model for End-stage Liver Disease (MELD), D-MELD and Balance of Risk (BAR) scores and a higher rate of acute-on-chronic liver failure compared with findings in 343 patients with no infection. The rate of infection after liver transplantation was higher in patients who had an infection before the operation: 48 per cent versus 30·6 per cent in those with no infection before transplantation (P = 0·003). The percentage of patients with a postoperative complication (42 versus 40·5 per cent respectively; P = 0·849) and the 90-day mortality rate (8 versus 6·4 per cent; P = 0·531) was no different between the groups. Multivariable analysis showed that a BAR score greater than 18 and acute-on-chronic liver failure were independent predictors of 90-day mortality. CONCLUSION: Bacterial infection 1 month before liver transplantation is related to a higher rate of infection after transplantation, but does not lead to a worse outcome.


Assuntos
Infecções Bacterianas/epidemiologia , Transplante de Fígado/mortalidade , Insuficiência Hepática Crônica Agudizada/cirurgia , Adolescente , Adulto , Idoso , Infecções Bacterianas/microbiologia , Feminino , Humanos , Itália/epidemiologia , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Complicações Pós-Operatórias , Período Pré-Operatório , Reoperação , Estudos Retrospectivos , Índice de Gravidade de Doença , Adulto Jovem
5.
Aliment Pharmacol Ther ; 43(7): 814-24, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26864152

RESUMO

BACKGROUND: Hepatocellular carcinoma (HCC) causes premature death and loss of life expectancy worldwide. Its primary and secondary prevention can result in a significant number of years of life saved. AIM: To assess how many years of life are lost after HCC diagnosis. METHODS: Data from 5346 patients with first HCC diagnosis were used to estimate lifespan and number of years of life lost after tumour onset, using a semi-parametric extrapolation having as reference an age-, sex- and year-of-onset-matched population derived from national life tables. RESULTS: Between 1986 and 2014, HCC lead to an average of 11.5 years-of-life lost for each patient. The youngest age-quartile group (18-61 years) had the highest number of years-of-life lost, representing approximately 41% of the overall benefit obtainable from prevention. Advancements in HCC management have progressively reduced the number of years-of-life lost from 12.6 years in 1986-1999, to 10.7 in 2000-2006 and 7.4 years in 2007-2014. Currently, an HCC diagnosis when a single tumour <2 cm results in 3.7 years-of-life lost while the diagnosis when a single tumour ≥ 2 cm or 2/3 nodules still within the Milan criteria, results in 5.0 years-of-life lost, representing the loss of only approximately 5.5% and 7.2%, respectively, of the entire lifespan from birth. CONCLUSIONS: Hepatocellular carcinoma occurrence results in the loss of a considerable number of years-of-life, especially for younger patients. In recent years, the increased possibility of effectively treating this tumour has improved life expectancy, thus reducing years-of-life lost.


Assuntos
Carcinoma Hepatocelular/epidemiologia , Carcinoma Hepatocelular/prevenção & controle , Expectativa de Vida/tendências , Neoplasias Hepáticas/epidemiologia , Neoplasias Hepáticas/prevenção & controle , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Bases de Dados Factuais/tendências , Gerenciamento Clínico , Feminino , Humanos , Itália/epidemiologia , Masculino , Pessoa de Meia-Idade , Prevenção Primária/tendências , Estudos Prospectivos , Sistema de Registros , Prevenção Secundária/tendências , Adulto Jovem
6.
Environ Sci Pollut Res Int ; 22(8): 6034-49, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25382496

RESUMO

A study of benthic foraminifera was carried out in sediment samples collected from the central Adriatic coast of Italy, near the Ancona harbour and the Falconara Marittima oil refinery, in order to validate and support their use as bioindicators of ecosystem quality. On the basis of a principal component analysis (PCA), three biotopes (following the bathymetric gradient) have been documented, showing that the distribution pattern of benthic foraminifera is principally related to riverine inputs, organic matter contents at the seafloor, and sediment grain size. We observed higher abundances of opportunistic, low-oxygen tolerant taxa along the coastline, thus being representative of polluted environmental conditions. Near the Falconara Marittima oil refinery, the microfaunal assemblages is characterized by the absence of living specimens and by a low diversity associated with the dominance of opportunistic species. At this site, aberrant tests were also found. The data point out that Ammonia parkinsoniana and Quinqueloculina seem to be the most sensitive taxa and can be considered as good bioindicators of environmental stress in this area. This study confirms that faunal composition and morphology of benthic foraminifera respond to human-induced environmental perturbations, making their study potentially useful for biomonitoring in coastal-marine areas.


Assuntos
Exoesqueleto/química , Poluição Ambiental/análise , Foraminíferos/química , Sedimentos Geológicos/análise , Animais , Ecossistema , Monitoramento Ambiental , Itália , Mar Mediterrâneo , Oligoelementos/química
7.
Case Rep Transplant ; 2014: 262953, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25177510

RESUMO

An adult male underwent a bowel transplant for tufting enteropathy, receiving alemtuzumab, tacrolimus, and steroids as immunosuppressants. Five years later, he developed an autoimmune hemolytic anemia (AIHA), anti-IgG positive, with reduced reticulocyte count, leukopenia, and thrombocytopenia with antiplatelet antibodies. After an unsuccessful initial treatment with high dose steroids, reduction in tacrolimus dose, and intravenous immunoglobulin (IVIG), a bone marrow biopsy revealed absence of erythroid maturation with precursor hyperplasia. The patient was switched to sirolimus and received four doses of rituximab plus two courses of plasmapheresis, which decreased his transfusion requirements. After a febrile episode one month later, the AIHA relapsed with corresponding decreases in platelet and leukocyte count: cyclosporine A (CsA) was started with a second course of rituximab and IVIG without response, even though repeat bone marrow biopsy did not reveal morphology correlated to an acquired pure red cell aplasia (APRCA). Considering the similarity in his clinical and laboratory findings to APRCA, alemtuzumab was added (three doses over a week) with CsA followed by steroids. The patient was eventually discharged transfusion-independent, with increasing hemoglobin (Hb) levels and normal platelet and leukocyte count. One year later he is still disease-free with functioning graft.

8.
Transplant Proc ; 46(1): 245-8, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24507060

RESUMO

Intestinal transplantation is gaining worldwide acceptance as the main option for patients with irreversible intestinal failure and complicated total parenteral nutrition course. In adults, the main cause is still represented by short bowel syndrome, but tumors (Gardner syndrome) and dismotility disorders (chronic intestinal pseudo-obstruction [CIPO]) have been treated increasingly by this kind of transplantation procedure. We reviewed our series from the disease point of view: although SBS confirmed results achieved in previous years, CIPO is nowadays demonstrating an excellent outcome similar to other transplantation series. Our results showed indeed that recipients affected by Gardner syndrome must be carefully selected before the disease is to advanced to take advantage of the transplantation procedure.


Assuntos
Intestinos/transplante , Adulto , Fatores Etários , Alemtuzumab , Anticorpos Monoclonais Humanizados/administração & dosagem , Soro Antilinfocitário/administração & dosagem , Daclizumabe , Feminino , Síndrome de Gardner/cirurgia , Humanos , Imunoglobulina G/administração & dosagem , Imunossupressores/uso terapêutico , Enteropatias/cirurgia , Pseudo-Obstrução Intestinal/cirurgia , Intestinos/fisiopatologia , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Nutrição Parenteral Total , Modelos de Riscos Proporcionais , Síndrome do Intestino Curto/cirurgia , Resultado do Tratamento
9.
Minerva Anestesiol ; 80(6): 645-54, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24280819

RESUMO

BACKGROUND: The possibility of outlining a risk profile for perioperative blood transfusion of cirrhotic patients submitted to hepatic resection can help to rationalize transfusion policy. METHODS: Data from 323 hepatic resections, performed in cirrhotic patients, were reviewed. Bootstrap and a leave-one-out logistic regressions were applied to test the accuracy of available risk scores for peri-operative transfusion identified from PubMed search of the last 20 years, to refine them, and to provide internal validation for present results. RESULTS: One-hundred-six patients (32.8%) required blood transfusions during either intra- and/or postoperative. The predictive accuracy of three identified risk scores was poor with the area under receiver operating characteristics (AUROC) curves <0.70 in all cases. Tumor diameter, hemoglobin and presence of coronary artery disease were confirmed, in the present cohort, as predictors of blood transfusion together with serum albumin and bilirubin. The leave-one-out logistic regression results in an AUROC of 0.80, and of 0.79 for internal validation, significantly higher than that of the three scores tested (P<0.001). A Maximal Surgical Blood Order Schedule stratification was proposed. CONCLUSION: The risk profile for transfusion of cirrhotic patients undergoing hepatectomy can be better assessed with a model that combines already known clinical factors and hepatic function indexes.


Assuntos
Transfusão de Sangue/métodos , Hepatectomia/métodos , Cirrose Hepática/cirurgia , Assistência Perioperatória/métodos , Idoso , Perda Sanguínea Cirúrgica , Estudos de Coortes , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Medição de Risco
10.
Transplant Proc ; 45(9): 3170-7, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24182779

RESUMO

One of the main problems in transplant surgery is the preservation of the organ during the cold ischemic time. The interrupted blood supply triggers a cascade of biological modifications resulting in cell death, which predisposes to discharge of a large quantity of toxic metabolites at the moment of organ reperfusion. Many approaches have been studied to prevent the toxic processes. Immediately after procurement, kidneys are flushed with these solutions. Two main: techniques of organ preservation are cold static storage and hypothermic machine perfusion (HMP). Based on age and comorbidities, individuals can be generally divided into 2 groups: ideal and marginal donors. Characteristics of organs from marginal donors are associated with an increased rate of delayed graft function and primary graft nonfunction (PNF), which reduce transplant survival and increase the acute rejection risk. In the last 20 years, the United Network of Organ Sharing has reported a 170% increase in deceased donors older than 50 years of age. Techniques of perfusion have been demonstrated to play a pivotal role in graft function after transplantation. Some studies suggest that HMP may improve outcomes after transplantation.


Assuntos
Rim , Preservação de Órgãos , Morte Encefálica , Humanos , Soluções para Preservação de Órgãos , Doadores de Tecidos
11.
Transplant Proc ; 45(5): 1969-70, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23769085

RESUMO

BACKGROUND: Combined liver-kidney transplantation (LKT) is considered to be a safe procedure, but the appropriate immunosuppressive regimen is unclear. PATIENTS AND METHODS: Between January 1997 and October 2011, 55 patients were listed for LKT: 45 (82%) were effectively transplanted, 5 (9.2%) died whereon here the waiting list, 3 (5.5%) temporarily out of waiting list, 1 (1.8%) was on waiting list and 1 (1.8%) refused LKT. Five LKTs treated with cyclosporine (CyA) were excluded from the analysis. Mean recipient age was 50.32 ± 10.32 years (14-65), MELD score at time of LKT was 19.22 ± 4.69 (8-29), mean waiting list time was 8.14 ± 9.50 months (0.1-35.76), and follow-up, 4.09 ± 3.02 years (0.01-10.41). Main indications for LKT were policystic disease (n = 15; 37%), hepatitis virus C (HCV)-related cirrhosis (n = 9; 22%) metabolic disease (n = 5; 13%), hepatitis virus B (HBV) cirrhosis (n = 4; 10%), alcoholic cirrhosis (n = 4; 10%), and cholestatic disease (n = 3; 8%). Immunosuppressive regimen was based on tacrolimus and steroids in 40 cases with induction therapy with alemtuzumab (Campath; 0.3 mg/kg) in 13 of 40 instances cases administered on day 0 and day 7. RESULTS: Postoperative mortality was 2.5%. Acute cellular rejection episodes were biopsy-proven in 2 (5%) cases, post-LKT infections developed in 17 cases (42.5%), and de novo cancer developed in 3 (7.5%) cases. Similar 5-year overall survivals were obtained irrespective of the LKT indication: 100% in cholestatic and alcoholic cirrhosis patients, 86% in policystic disease, 75% in metabolic disease and HBV patients, and 66% in HCV cirrhosis. Overall survivals for the alemtuzumab vs without-induction therapy groups at 1, 3, and 5-years were 100%, 85.7%, and 85.7% vs 76%, 76%, and 70%, respectively (P = .04). CONCLUSION: An immunosuppressive regimen based on tacrolimus and steroids with induction therapy with alemtuzumab was safe, with excellent long-term results for combined LKT.


Assuntos
Anticorpos Monoclonais Humanizados/uso terapêutico , Antineoplásicos/uso terapêutico , Transplante de Rim , Transplante de Fígado , Adolescente , Adulto , Idoso , Alemtuzumab , Feminino , Humanos , Itália , Masculino , Pessoa de Meia-Idade , Listas de Espera , Adulto Jovem
12.
Transplant Proc ; 45(5): 2032-3, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23769102

RESUMO

Steroid-resistant acute cellular rejection (ACR) and chronic rejection (CR) are still major concerns after intestinal transplantation. We report our experience from a single center on 48 adults recipients using 49 grafts from 2001 to 2011, immunosuppressing them initially with daclizumab initially and later Alemtuzumab. Overall patient survival was 41.9% at 10 years while graft survival was 38.5%. The steroid-resistant ACR population of 14 recipients (28.5%) experienced 50% mortality mainly due to sepsis, while the five (8%) CR recipients, included two survivors. All but 1 graft was placed without a liver. CR was often preceded by ACR episodes. Mortality related to steroid-resistant ACR and CR still affects the intestinal transplant population despite induction/preconditioning, especially in the absence of a protective liver effect of the liver. New immunosuppressive strategies are needed.


Assuntos
Rejeição de Enxerto/mortalidade , Intestinos/transplante , Esteroides/administração & dosagem , Condicionamento Pré-Transplante , Doença Aguda , Adulto , Doença Crônica , Humanos , Imunossupressores/administração & dosagem
14.
Am J Transplant ; 11(8): 1696-704, 2011 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-21668632

RESUMO

In the last US national conference on liver transplantation for hepatocellular carcinoma (HCC), a continuous priority score, that incorporates model for end-stage liver disease (MELD), alpha-fetoprotein and tumor size, was recommended to ensure a more equitable liver allocation. However, prioritizing highest alpha-fetoprotein levels or largest tumors may select lesions at a higher risk for recurrence; similarly, patients with higher degree of liver failure could have lower postoperative survival. Data from 300 adult HCC recipients were reviewed and the proposed HCC-MELD equation was applied to verify if it can predict post-transplantation survival. The 5-year survival and recurrence rates after transplantation were 72.8 and 13.5%, respectively. Cox regression analysis confirmed HCC-MELD as predictive of both postoperative survival and recurrence (p < 0.001). The 5-year predicted survival and recurrence rates were plotted against the HCC-MELD-based dropout probability: the higher the dropout probability while on waiting list, the lower the predicted survival after transplantation, that is worsened by hepatitis C positivity; similarly, the higher the predicted HCC recurrence rate after transplantation. The HCC priority score could predict the postoperative survival of HCC recipients and could be useful in selecting patients with greater possibilities of survival, resulting in higher post-transplantation survival rates of HCC populations.


Assuntos
Carcinoma Hepatocelular/cirurgia , Neoplasias Hepáticas/cirurgia , Transplante de Fígado , Taxa de Sobrevida , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Modelos de Riscos Proporcionais , Estudos Prospectivos
15.
J Biol Regul Homeost Agents ; 25(1): 77-84, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21382276

RESUMO

Xanthine oxidoreductase (XOR) leakage into serum has been observed in various types of liver pathology as well as after liver transplantation (LT). We determined the amount of XOR associated with LT to investigate the changes in serum enzyme level during the LT procedure and the post-operative period. Additionally, we examined whether there was any correlation between XOR levels and the surgical technique. XOR levels were measured by a competitive ELISA. In a first group of patients, the portal vein was flushed before the liver and systemic reperfusions, which occurred simultaneously. In the second group, the graft was flushed with blood from the portal vein before the systemic reperfusion. XOR showed a marked elevation in the caval effluent collected during LT and was higher compared to control serum levels at all time points that were examined after LT. The XOR levels during LT were also higher than samples taken pre-LT or from the portal blood flush before reperfusion. The XOR level was higher in Group 2 than in Group 1. Enhancement of the XOR serum level during LT was not derived from enterocytes, and it should be attributed to enzyme leakage from graft liver cells. We report the elevation of serum XOR during the three weeks following LT for the first time, as well as the influence of the graft reperfusion technique on XOR serum levels.


Assuntos
Transplante de Fígado , Fígado/metabolismo , Reperfusão , Transplantes , Xantina Desidrogenase/sangue , Adulto , Idoso , Enterócitos/metabolismo , Ensaio de Imunoadsorção Enzimática , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Tempo
16.
Transplant Proc ; 42(7): 2579-84, 2010 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-20832548

RESUMO

Sirolimus (SRL) is a newer immunosuppressant whose possible benefits and side effects in comparison to calcineurin inhibitors (CNIs) still have to be addressed in the liver transplantation setting. We report the results of the use of SRL in 86 liver transplant recipients, 38 of whom received SRL as the main immunosuppressant in a CNI-sparing regimen. Indications for the use of SRL were: impaired renal function (n = 32), CNI neurotoxicity (n = 16), hepatocellular carcinoma (HCC) at high risk of recurrence (n = 21), recurrence of HCC (n = 6), de novo malignancies (n = 4), cholangiocarcinoma (n = 1), and the need to reinforce immunosuppression (n = 6). Among patients on SRL-based treatment, four episodes of acute rejection were observed, three of which occurred during the first postoperative month. Renal function significantly improved when sirolimus was introduced within the third postoperative month, while no change was observed when it was introduced later. Neurological symptoms resolved completely in 14/16 patients. The 3-year recurrence-free survival of patients with HCC on SRL was 84%. Sixty-two patients developed side effects that required drug withdrawal in seven cases. There was a reduced prevalence of hypertension and new-onset diabetes among patients under SRL. In conclusion, SRL was an effective immunosuppressant even when used in a CNI-sparing regimen. It was beneficial for patients with recently developed renal dysfunction or neurological disorders.


Assuntos
Transplante de Fígado/imunologia , Sirolimo/uso terapêutico , Adulto , Carcinoma Hepatocelular/cirurgia , Intervalo Livre de Doença , Esquema de Medicação , Feminino , Taxa de Filtração Glomerular , Humanos , Imunossupressores/uso terapêutico , Testes de Função Renal , Cirrose Hepática/classificação , Cirrose Hepática/cirurgia , Neoplasias Hepáticas/cirurgia , Transplante de Fígado/fisiologia , Masculino , Pessoa de Meia-Idade , Recidiva , Sirolimo/administração & dosagem , Sirolimo/efeitos adversos , Fatores de Tempo
17.
Am J Transplant ; 10(3): 619-27, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-20121741

RESUMO

Primary transplantation offers longer life-expectancy in comparison to hepatic resection (HR) for hepatocellular carcinoma (HCC) followed by salvage transplantation; however, livers not used for primary transplantation can be reallocated to the remaining waiting-list patients, thus, the harm caused to resected patients could be balanced, or outweighed, by the benefit obtained from reallocation of livers originating from HCC patients first being resected. A Markov model was developed to investigate this issue based on literature data or estimated from the United Network for Organ Sharing database. Markov model shows that primary transplantation offers longer life-expectancy in comparison to HR and salvage transplantation if 5-year posttransplant survival remains higher than 60%. The balance between the harm for resected patients and the benefit for the remaining waiting list depends on (a) the proportion of HCC candidates, (b) the percentage shifted to HR and (c) the median expected time-to-transplant. Faced with a low proportion of HCC candidates, the harm caused to resected patients was higher than the benefit that could be obtained for the waiting-list population from re-allocation of extra livers. An increased proportion of HCC candidates and/or an increased median time-to-transplant could lead to a benefit for waiting-list patients that outweighs this harm.


Assuntos
Carcinoma Hepatocelular/terapia , Hepatectomia/métodos , Neoplasias Hepáticas/terapia , Transplante de Fígado/métodos , Terapia de Salvação/métodos , Idoso , Fibrose , Humanos , Expectativa de Vida , Cadeias de Markov , Pessoa de Meia-Idade , Modelos Estatísticos , Fatores de Tempo , Doadores de Tecidos , Resultado do Tratamento
18.
Transplant Proc ; 42(1): 35-8, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20172276

RESUMO

BACKGROUND: Allograft rejection in intestinal transplantation occurs frequently, and bacterial, fungal, and viral infections related to strong immunosuppression regimens remain an important complication posttransplantation. Induction therapy has enabled improvement in graft and patient survival rates. OBJECTIVES: In analyze the effects of daclizumab and alemtuzumab as induction therapies on inflections complications and incidence of acute cellular rejection (ACR) during the early posttransplantation period. PATIENTS AND METHODS: Between December 2000 and August 2009, we performed 43 intestinal transplantation procedures in 42 adult recipients (median [SD] age, 34.8 [9.5] years; male-female ratio, 22:20; isolated or multivisceral graft, 32/11), and compared findings during the first 30 days posttransplantation in 40 recipients. Patients were divided into 2 groups: 12 treated with daclizumab (Zenapax; Hoffman-La Roche Ltd, Basel, Switzerland): 8 isolated intestinal grafts and 4 multivisceral grafts) and 28 treated with alemtuzumab (Campath-1H: 22 isolated intestinal grafts and 6 multivisceral grafts). Maintenance immunosuppression was based on tacrolimus and steroids in the first group and low-dose tacrolimus in the second group. RESULTS: During the first month posttransplantation, 8 daclizumab recipients (66.6%) experienced 9 episodes of mild ACR, which were successfully treated with steroid therapy, and 8 patients (66.6%) developed a bacterial infection requiring treatment. Fourteen episodes of ACR occurred in 12 alemtuzumab recipients (42.8%): 11 mild, 1 mild to moderate, and 2 moderate; 16 patients (57.1%) required treatment for infections. Five-year patient cumulative survival was 66% in daclizumab recipients and 43% in alemtuzumab recipients. Five-year graft survivals was 66% in daclizumab recipients and 41% in alemtuzumab recipients. In both groups, P was not statistically significative. CONCLUSIONS: The infection rate is considerably high with both protocols. Alemtuzumab seems to offer better immunosuppression against ACRs during the first month posttransplantation.


Assuntos
Anticorpos Monoclonais/uso terapêutico , Anticorpos Antineoplásicos/uso terapêutico , Imunoglobulina G/uso terapêutico , Imunossupressores/uso terapêutico , Intestinos/transplante , Complicações Pós-Operatórias/epidemiologia , Vísceras/transplante , Adolescente , Adulto , Alemtuzumab , Anticorpos Monoclonais Humanizados , Antineoplásicos/uso terapêutico , Daclizumabe , Feminino , Seguimentos , Síndrome de Gardner/cirurgia , Sobrevivência de Enxerto , Humanos , Masculino , Pessoa de Meia-Idade , Período Pós-Operatório , Síndrome do Intestino Curto/cirurgia , Taxa de Sobrevida
19.
Transplant Proc ; 42(1): 39-41, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20172277

RESUMO

INTRODUCTION: Surgical approaches to complicated benign intestinal failure are accepted worldwide, especially in the pediatric population. Intestinal transplant surgery is thought to rescue patients in whom complications of total parenteral nutrition (TPN) develop. OBJECTIVE: To report our experience with surgical intestinal rescue in an adult population with intestinal failure. PATIENTS AND METHODS: An intestinal rehabilitation program initiated at our institution included comprehensive medical rehabilitation, surgical bowel rescue, and transplantation. From 2000 to 2009, of 81 adult patients referred by our gastroenterologists for bowel rehabilitation, 42 (51,8%) underwent 43 transplantations (32 isolated intestinal grafts and 11 multivisceral grafts). Underlying diseases were primarily short-bowel syndrome, Gardner syndrome, and intestinal pseudo-obstruction. Thirty-nine patients (48,2%) underwent surgical rescue (40 cases) consisting of bowel resection, adhesiolysis, stricturoplasty, liver transplantation with portocaval hemitransposition (6 cases in 5 patients). Underlying diseases were primarily intestinal fistulas, stenosis, or perforations, short-bowel syndrome, cocoon syndrome, and complete portal thrombosis. RESULTS: After a mean (SD) follow-up of 1043 (1016) days, in the transplantation population, 21 patients (50%) are alive, with a 1-, 3-, 5-year patient survival of 76%, 59%, and 52%, respectively, and graft survival of 66%, 54%, and 48%, respectively. After 901 (404) days in the rescue population, 32 patients (82%) are alive (2 died, and 5 were lost to follow-up); in 75%, TPN 25% was discontinued, and are receiving oral feeding with TPN support. The 1- and 3-year survival rate was 100% and 83%, respectively. CONCLUSIONS: Deaths occurred primarily in the transplantation population. Intestinal surgical rescue, when possible, is optimal.


Assuntos
Enteropatias/cirurgia , Intestinos/transplante , Nutrição Parenteral Total , Parede Abdominal/cirurgia , Adulto , Feminino , Sobrevivência de Enxerto/fisiologia , Humanos , Enteropatias/reabilitação , Pseudo-Obstrução Intestinal/cirurgia , Itália , Masculino , Síndrome do Intestino Curto/cirurgia , Taxa de Sobrevida , Sobreviventes
20.
Transplant Proc ; 42(1): 42-4, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20172278

RESUMO

INTRODUCTION: Intestinal transplantation has become an accepted therapy for individuals permanently dependent on total parenteral nutrition (TPN) with life-threatening complications. Quality of life and psychological well-being can be seen as important outcome measures of transplantation surgery. METHODS: We evaluated 24 adult intestinal transplant recipients and 24 healthy subjects (a control group). All subjects were administered the Italian Version of the Psychological Well-Being Scales (PWB) by C. Ryff, the World Health Organization Quality of Life-Brief (WHOQOL), and the Symptom Questionnaire (SQ) by R. Kellner and G.A. Fava, a symptomatology scale. Quality of life and psychological well-being were assessed in transplant recipients in relationship to the number of rejections, the number of admissions, and the immunosuppressive protocol. RESULTS: Intestinal transplant recipients reported significantly higher scores in the "personal growth" category (P = .036) and lower scores in the "positive relation with others" (P = .013) and "autonomy" (P = .007) dimensions of PWB, compared with the controls. In the WHOQOL, the scores of transplant recipients were lower only in the psychological domain (P = .011). Transplant recipients reported significantly higher scores in the "somatic symptom" (P = .027) and "hostility" (P = .018) dimensions of the SQ, compared with the controls. Transplant recipients with number of admissions >8 reported higher scores in "anxiety" (P = .019) and "depression" (P = .021) scales of the SQ, and the patients with a Daclizumab protocol reported higher scores in "depression" (P = .000) and "somatic symptom" (P = .008) of the SQ. There were no significant differences regarding number of rejections and socio-demographic variables. CONCLUSION: Improvement of psychological well-being in the transplant population may be related to the achievement of the goal of transplantation: recovery of bowel function. But the data confirmed that the transplant experience required a long and difficult adaptation trial to the new condition of "transplant recipient."


Assuntos
Adaptação Psicológica/fisiologia , Intestinos/transplante , Qualidade de Vida , Transplante/psicologia , Adulto , Atitude Frente a Saúde , Feminino , Humanos , Itália , Masculino , Pessoa de Meia-Idade , Comportamento Social , Inquéritos e Questionários
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