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1.
Br J Cancer ; 104(7): 1079-84, 2011 Mar 29.
Artigo em Inglês | MEDLINE | ID: mdl-21386839

RESUMO

BACKGROUND: In patients with colorectal liver metastases (CLM) R0 resection significantly improves overall survival (OS). METHODS: In this report, we present the results of a phase II trial of FOLFOX6+bevacizumab in patients with non-optimally resectable CLM. Patients received six cycles of FOLFOX6+ five of bevacizumab. Patients not achieving resectability received six additional cycles of each. A PET-CT was performed at baseline and again within 1 month after initiating treatment. RESULTS: From September 2005 to July 2009, 21 patients were enrolled (Male/Female: 15/6; median age: 65 years). An objective response (OR) was documented in 12 cases (57.1%; complete responses (CRs): 3, partial response (PR): 9); one patient died from toxicity before surgery. Thirteen patients underwent radical surgery (61.9%). Three (23%) had a pathological CR (pCR). Six patients (46.1%) experienced minor postsurgical complications. After a median 38.8-month follow-up, the median OS was 22.5 months. Patients achieving at least 1 unit reduction in Standard uptake value (SUV)max on PET-CT had longer progression-free survival (PFS) (median PFS: 22 vs 14 months, P=0.001). CONCLUSIONS: FOLFOX6+bevacizumab does not increase postsurgical complications, yields high rates of resectability and pCR. Early changes in PET-CT seem to be predictive of longer PFS.


Assuntos
Anticorpos Monoclonais/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Hepáticas/tratamento farmacológico , Adulto , Idoso , Anticorpos Monoclonais/administração & dosagem , Anticorpos Monoclonais/efeitos adversos , Anticorpos Monoclonais Humanizados , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Bevacizumab , Neoplasias Colorretais/mortalidade , Neoplasias Colorretais/patologia , Feminino , Fluoruracila/administração & dosagem , Fluoruracila/efeitos adversos , Fluoruracila/uso terapêutico , Seguimentos , Humanos , Leucovorina/administração & dosagem , Leucovorina/efeitos adversos , Leucovorina/uso terapêutico , Neoplasias Hepáticas/secundário , Masculino , Pessoa de Meia-Idade , Compostos Organoplatínicos/administração & dosagem , Compostos Organoplatínicos/efeitos adversos , Compostos Organoplatínicos/uso terapêutico , Tomografia por Emissão de Pósitrons , Tomografia Computadorizada por Raios X
2.
Am J Transplant ; 11(12): 2724-36, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21920017

RESUMO

Donor-recipient match is a matter of debate in liver transplantation. D-MELD (donor age × recipient biochemical model for end-stage liver disease [MELD]) and other factors were analyzed on a national Italian database recording 5946 liver transplants. Primary endpoint was to determine factors predictive of 3-year patient survival. D-MELD cutoff predictive of 5-year patient survival <50% (5yrsPS<50%) was investigated. A prognosis calculator was implemented (http://www.D-MELD.com). Differences among D-MELD deciles allowed their regrouping into three D-MELD classes (A < 338, B 338-1628, C >1628). At 3 years, the odds ratio (OR) for death was 2.03 (95% confidence interval [CI], 1.44-2.85) in D-MELD class C versus B. The OR was 0.40 (95% CI, 0.24-0.66) in class A versus class B. Other predictors were hepatitis C virus (HCV; OR = 1.42; 95% CI, 1.11-1.81), hepatitis B virus (HBV; OR = 0.69; 95% CI, 0.51-0.93), retransplant (OR = 1.82; 95% CI, 1.16-2.87) and low-volume center (OR = 1.48; 95% CI, 1.11-1.99). Cox regressions up to 90 months confirmed results. The hazard ratio was 1.97 (95% CI, 1.59-2.43) for D-MELD class C versus class B and 0.42 (95% CI, 0.29-0.60) for D-MELD class A versus class B. Recipient age, HCV, HBV and retransplant were also significant. The 5yrsPS<50% cutoff was identified only in HCV patients (D-MELD ≥ 1750). The innovative approach offered by D-MELD and covariates is helpful in predicting outcome after liver transplantation, especially in HCV recipients.


Assuntos
Doença Hepática Terminal/cirurgia , Rejeição de Enxerto/etiologia , Hepatite C/mortalidade , Transplante de Fígado/mortalidade , Modelos Estatísticos , Complicações Pós-Operatórias , Doadores de Tecidos , Adulto , Fatores Etários , Idoso , Seleção do Doador , Feminino , Rejeição de Enxerto/epidemiologia , Rejeição de Enxerto/prevenção & controle , Sobrevivência de Enxerto , Indicadores Básicos de Saúde , Hepacivirus/patogenicidade , Hepatite C/epidemiologia , Hepatite C/cirurgia , Humanos , Itália/epidemiologia , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Fatores de Risco , Taxa de Sobrevida , Adulto Jovem
3.
Transpl Infect Dis ; 13(5): 501-6, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21414117

RESUMO

Although human immunodeficiency virus (HIV) infection has been a major global health problem for almost 3 decades, with the introduction of highly active antiretroviral therapy in 1996 and effective prophylaxis and management of opportunistic infections, mortality from acquired immunodeficiency syndrome has decreased markedly. In developed countries, this condition is now being treated as a chronic condition. As a result, rates of morbidity and mortality from other medical conditions leading to end-stage liver, kidney, and heart disease are steadily increasing in individuals with HIV. Because the definitive treatment for end-stage organ failure is transplantation, the demand for it has increased among HIV-infected patients. For these reasons, many transplant centers have eliminated HIV infection as a contraindication to transplantation, as a result of better patient management and demand.


Assuntos
Infecções por HIV/complicações , Transplante de Rim , Transplante de Fígado , Adulto , Fármacos Anti-HIV/administração & dosagem , Fármacos Anti-HIV/uso terapêutico , Terapia Antirretroviral de Alta Atividade , Infecções por HIV/tratamento farmacológico , Humanos , Falência Hepática/terapia , Masculino , Pessoa de Meia-Idade , Seleção de Pacientes , Insuficiência Renal/terapia , Resultado do Tratamento
4.
Am J Transplant ; 10(10): 2252-62, 2010 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-20486905

RESUMO

We designed a randomized trial to assess whether the early withdrawal of cyclosporine (CsA) followed by the initiation of everolimus (Evr) monotherapy in de novo liver transplantation (LT) patients would result in superior renal function compared to a CsA-based immunosuppression protocol. All patients were treated with CsA for the first 10 days and then randomized to receive Evr in combination with CsA up to day 30, then either continued on Evr monotherapy (Evr group) or maintained on CsA with/without mycophenolate mofetil (CsA group) in case of chronic kidney disease (CKD). Seventy-eight patients were randomized (Evr n = 52; CsA n = 26). The 1-year freedom from efficacy failure in Evr group was 75% versus 69.2% in CsA group, p = 0.36. There was no statistically significant difference in patient survival between the two groups. Mean modification of diet in renal disease (MDRD) was significantly better in the Evr group at 12 months (87.7 ± 26.1 vs. 59.9 ± 12.6 mL/min; p < 0.001). The incidence of CKD stage ≥ 3 (estimated glomerular filtration rate < 60 mL/min) was higher in the CsA group at 1 year (52.2% vs. 15.4%, p = 0.005). The results indicate that early withdrawal of CsA followed by Evr monotherapy in de novo LT patients is associated with an improvement in renal function, with a similar incidence of rejection and major complications.


Assuntos
Inibidores de Calcineurina , Ciclosporina/efeitos adversos , Imunossupressores/efeitos adversos , Transplante de Fígado/efeitos adversos , Insuficiência Renal/prevenção & controle , Sirolimo/análogos & derivados , Adulto , Ciclosporina/administração & dosagem , Dislipidemias/tratamento farmacológico , Dislipidemias/etiologia , Everolimo , Feminino , Humanos , Imunossupressores/administração & dosagem , Testes de Função Renal , Masculino , Pessoa de Meia-Idade , Sirolimo/uso terapêutico
5.
Clin Transplant ; 24(5): E188-93, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20236130

RESUMO

INTRODUCTION: The average age of patients undergoing liver transplantation (LT) is consistently increasing. The aim of this case-control study is to evaluate survival and outcome of patients ≥65 yr compared to younger patients undergoing LT. MATERIALS AND METHODS: From 10/00 to 4/08 we performed 330 primary LT, 31 (9.4%) of these were in patients aged 65-70. Following a case-control approach, we compared these patients with 31 patients aged between 41 and 64 yr and matched according to sex, LT indication, viral status, cadaveric/living donor, LT timing, and Model for End-Stage Liver Disease (MELD) score. RESULTS: There were no statistically significant differences in demographic and surgical donor characteristics. The mean MELD score was under 18 in both groups. Post-LT complications occurred with a similar incidence in the two groups. one-, three-, and five-yr survival was 83.9%, 80.6%, and 80.6%, respectively, for the elderly group, and 80.6%, 73.8%, and 73.8%, respectively, for the young group (p = 0.61). DISCUSSION: Patients aged between 65 and 70 with low MELD score who undergo LT have the same short- and middle-term survival expectancy, morbidity, and outcome quality as younger patients with the same indication and same pre-LT pathology severity, whatever they might be. Thus, chronological age alone should not deter LT workup in patients >65 and <70.


Assuntos
Falência Hepática/cirurgia , Transplante de Fígado/mortalidade , Adulto , Idoso , Estudos de Casos e Controles , Feminino , Sobrevivência de Enxerto , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Taxa de Sobrevida , Resultado do Tratamento
6.
Minerva Chir ; 65(1): 1-9, 2010 Feb.
Artigo em Italiano | MEDLINE | ID: mdl-20212411

RESUMO

AIM: Radical resection is the only potential cure for pancreatic malignancies and a useful treatment for other benign diseases, such as pancreatitis. Over the last two decades, medical and surgical improvements have drastically changed the postoperative outcome of elderly patients undergoing pancreatic resection, and appropriate treatment for elderly potential candidates for pancreatic resection has become an important issue. METHODS: A hundred and five consecutive patients undergoing radical pancreatic resection between 2003 and 2007 at the Surgery Unit of the University of Modena, Italy, were considered and divided into two groups according to their age, i.e., over 75-year olds (group 1, 25 patients) and under 75-year-olds (group 2, 80 patients). The two groups were compared as regards to demographic features, American Society of Anesthesiologists scores, comorbidities, previous major surgery, surgical procedure, postoperative mortality, and morbidity. RESULTS: There were no significant differences between the two groups concerning postoperative mortality, and the duration of hospital stay and days in the postoperative Intensive Care Unit were also similar. Complications such as pancreatic fistulas, wound infections, and pneumonia were more frequent in the older group, but the differences were not statistically significant. CONCLUSION: In the light of these findings and as reported for other series, old age is probably not directly related with any increase in the rate of postoperative complications, but comorbidities (which are naturally related to the patients' previous life) may have a key role in the postoperative course.


Assuntos
Neoplasias Duodenais/cirurgia , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Procedimentos Cirúrgicos do Sistema Digestório/métodos , Neoplasias Duodenais/patologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/epidemiologia , Adulto Jovem
7.
Am J Transplant ; 9(7): 1690-7, 2009 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-19519818

RESUMO

The unique phenomenon of human herpesvirus-6 (HHV-6) chromosomal integration (CIHHV-6) may account for clinical drawbacks in transplant setting, being misinterpreted as active infection and leading to unnecessary and potentially harmful treatments. We have investigated the prevalence of CIHHV-6 in 205 consecutive solid organ (SO) and allogeneic stem cell transplant (alloSCT) Italian patients. Fifty-two (38.5%) of 135 solid organ transplant (SOT) and 16 (22.8%) of 70 alloSCT patients resulted positive for plasma HHV-6 DNA by real-time polymerase chain reaction. Seven SOT and three alloSCT patients presented HHV-6-related diseases, requiring antivirals. Two further patients (0.9%) were identified, presenting high HHV-6 loads. The quantification of HHV-6 on hair follicles disclosed the integrated state, allowing the discontinuation of antivirals. Before starting specific treatments, CIHHV-6 should be excluded in transplant patients with HHV-6 viremia by the comparison of HHV-6 loads on different fluids and tissues. Pretransplantation screening of donors and recipients may further prevent the misdiagnosis of CIHHV-6.


Assuntos
Herpesvirus Humano 6/genética , Herpesvirus Humano 6/patogenicidade , Transplante de Células-Tronco , Transplantes , Integração Viral/genética , Adulto , Estudos de Coortes , DNA Viral/sangue , DNA Viral/genética , Herpesvirus Humano 6/isolamento & purificação , Herpesvirus Humano 6/fisiologia , Humanos , Itália , Masculino , Pessoa de Meia-Idade , Infecções por Roseolovirus/diagnóstico , Infecções por Roseolovirus/etiologia , Infecções por Roseolovirus/virologia , Transplante de Células-Tronco/efeitos adversos , Transplante Homólogo , Transplantes/efeitos adversos , Viremia/diagnóstico , Viremia/etiologia , Viremia/virologia
8.
Infection ; 37(3): 250-5, 2009 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-19471855

RESUMO

BACKGROUND: No data are available on the use of atazanavir (ATV) in patients with end-stage liver disease (ESLD), and guidelines discourage its use in this setting. The objective of our study was to evaluate the efficacy and safety of unboosted ATV in patients infected with HIV and suffering from ESLD who had been screened for orthotopic liver transplantation (OLT(x)). PATIENTS AND METHODS: This was a single-arm, 24-week pilot study. Atazanavir-naïve patients undergoing a highly active antiretroviral therapy were switched to ATV 400 mg daily plus two non-thymidine nucleoside reverse transcriptase inhibitors. RESULTS: Fifteen patients (ten males and five females, age range 36-59 years) were enrolled in the study. Of these, 11 (73%) had a baseline CD4 cell count > 200 microl(-1), and 12 had undetectable plasma HIV-RNA. 12 subjects (80%) were able to remain on ATV until week 24 (n = 10) or transplantation (n = 2). At the end of the study, the median CD4 cell count was 340 microl(-1) , and nine of the ten patients had undetectable RNA. During the study period, two patients received a transplant, two died of intracerebral hemorrhage and lactic acidosis, respectively, and one discontinued ATV. Among the ten patients completing the 24-week study, no significant changes from baseline were observed for most of the liver function markers, with the exception of unconjugated bilirubin (from 1.15 mg/dl to 1.32 mg/dl, p = 0.047). CONCLUSIONS: Unboosted ATV treatment did not worsen liver disease and was able to maintain or gain immunovirological eligibility for OLT(x) in all patients, with a limited effect on unconjugated bilirubin. These results suggest that ATV is an easy-to-use drug in patients with ESLD.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Falência Hepática/complicações , Oligopeptídeos/uso terapêutico , Piridinas/uso terapêutico , Adulto , Fármacos Anti-HIV/efeitos adversos , Terapia Antirretroviral de Alta Atividade , Sulfato de Atazanavir , Contagem de Linfócito CD4 , Feminino , Seguimentos , Infecções por HIV/imunologia , Humanos , Falência Hepática/mortalidade , Testes de Função Hepática , Transplante de Fígado , Masculino , Pessoa de Meia-Idade , Oligopeptídeos/efeitos adversos , Projetos Piloto , Piridinas/efeitos adversos , Resultado do Tratamento , Carga Viral
9.
Euro Surveill ; 14(50)2009 Dec 17.
Artigo em Inglês | MEDLINE | ID: mdl-20070935

RESUMO

We report a case of Usutu virus (USUV)-related illness in a patient that underwent an orthotropic liver transplant (OLT). Post transplant, the patient developed clinical signs of a possible neuroinvasive disease with a significant loss of cerebral functions. USUV was isolated in Vero E6 cells from a plasma sample obtained immediately before the surgery, and USUV RNA was demonstrated by RT-PCR and sequencing. This report enlarges the panel of emerging mosquito-borne flavivirus-related disease in humans.


Assuntos
Infecções por Flavivirus/diagnóstico , Flavivirus/isolamento & purificação , Transplante de Fígado , Adulto , Feminino , Flavivirus/genética , Infecções por Flavivirus/etiologia , Humanos , Itália , Transplante de Fígado/efeitos adversos , Pessoa de Meia-Idade
10.
Transplant Proc ; 40(6): 1947-9, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18675097

RESUMO

INTRODUCTION: Anemia after orthotopic liver transplantation (OLT) is a common complication due to several reasons. Immunosuppressive drugs play an important role in anemia occurring at 1 month or more after OLT. Several studies describe myelosuppression immunosuppressants such as the mammalian target of rapamycin inhibitors. METHODS: We performed a single-center, prospective trial consisting of a short 30-day course of cyclosporine (CsA) associated with everolimus (EVL) from postoperative day 10 (Group EVL) versus a CsA immunosuppressive regimen (Group CsA) in de novo OLT patients. We explored the influence of immunosuppressive drugs on hematological parameters comparing EVL versus CsA. RESULTS: Twenty-eight patients were enrolled in the EVL and 12 in the CsA Groups. After OLT, hemoglobin (Hb), hematocrit (Hct), mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), white blood cell (WBC), platelets (PLT), transferrin saturation (TSAT), iron, ferritin, and transferrin did not differ significantly between the 2 groups at any time point. Among the patients who reached 6-months of follow-up, 5 (41.7%) EVL and 4 (80%) CsA subjects were anemic (P=not significant [NS]). Only anemia in patients enrolled in Group EVL showed a trend toward the features of microcytic, hypochromic anemia. DISCUSSION: Our results demonstrated that de novo anemia in OLT patients treated with EVL monotherapy showed the same incidence as in patients treated with CsA. Hb values remained similar during the entire follow-up. Moreover, overall myelosuppression in the EVL Group was not significantly different from patients in the CsA Group.


Assuntos
Imunossupressores/efeitos adversos , Imunossupressores/uso terapêutico , Ferro/metabolismo , Transplante de Fígado/imunologia , Sirolimo/análogos & derivados , Anemia/induzido quimicamente , Volume Sanguíneo/efeitos dos fármacos , Ciclosporina/uso terapêutico , Everolimo , Hemoglobinas/metabolismo , Humanos , Contagem de Leucócitos , Contagem de Plaquetas , Estudos Prospectivos , Sirolimo/efeitos adversos , Sirolimo/uso terapêutico
11.
Transplant Proc ; 40(6): 1910-2, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18675086

RESUMO

INTRODUCTION: Since 2003 the National Research Program for Solid Organ Transplantation in patients with human immunodeficiency virus (HIV) is active at our liver transplantation center. Patients with HIV who enter this protocol are assessed by the Consultation Liaison Psychiatry Service. The aim of the present study was to evaluate their psychiatric comorbidity. METHODS: An observational prospective study was conducted comparing end-stage liver disease (ESLD) patients with and without HIV. After the assessment, the psychiatrist compiled the Transplant Evaluation Rating Scale (TERS) and the Montgomery Asberg Depression Rating Scale (MADRS). Baseline evaluation was made before inclusion on the OLT waiting list and the follow-up evaluation was made 12 months later. RESULTS: From January 2003 to December 2006 we assessed 553 patients: 39 (6%) with HIV and 361 (94%) without HIV. The 2 groups were homogeneous for gender (75% of male patients; P=not significant [NS]) but not for age (46+/-5 vs 56+/-9; P=NS). Psychiatric history was negative in 176 (49%) patients without HIV and in 6 (15%) patients with HIV (P< .001). At baseline psychiatric comorbidity was present in 33 HIV patients (85%) and in 148 non-HIV patients (41%; P< .001). At follow-up MADRS highlighted an improvement in all of the items for HIV patients. In the non-HIV group, the variation was as follows: baseline, 7.10; follow-up, 8.15. In the HIV group, the variation was as follows: baseline, 10.20; follow-up, 4.09 (P< .001). The average score at TERS was higher among patients with HIV (43+/-9 vs 35+/-9; P=NS). CONCLUSIONS: At baseline HIV patients with ESLD showed a higher rate of psychopathology, but they improved at follow-up; the contrary happened in the non-HIV group.


Assuntos
Soropositividade para HIV/fisiopatologia , Soropositividade para HIV/psicologia , Falência Hepática/complicações , Falência Hepática/cirurgia , Transplante de Fígado , Transtornos Mentais/epidemiologia , Depressão/epidemiologia , Feminino , Soropositividade para HIV/complicações , Hepatite C/complicações , Humanos , Masculino , Transtornos do Humor/epidemiologia , Estudos Prospectivos
12.
Transplant Proc ; 40(6): 2077-9, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18675136

RESUMO

Hemophilia B is a congenital recessive disorder caused by deficiency of coagulation factor IX (FIX). Surgical procedures can be performed in patients with hemophilia using high-purity and/or recombinant FIX, which has been shown to be safe and effective in surgical hemostasis. Liver transplantation is the only potentially curative treatment available for these patients, providing a long-term phenotypic cure for hemophilia. End-stage liver disease together with hemophilia exposes patients to greater risks of bleeding complications during the perioperative period with consequent difficulties in managing coagulopathy. The limited experiences reported by different investigators and the various strategies for clotting factor replacement make it difficult to define a single approach with respect to the optimal dose and method of administering FIX to achieve perioperative hemostasis. The limits of plasma-based coagulation tests--prothrombin time, activated partial thromboplastin time--have made thromboelastography a valid alternative in this kind of surgery. It has been demonstrated to be a useful tool for real-time analysis of clot formation using a whole-blood assay format. Further, it accurately illustrates the clinical effects of procoagulant or anticoagulant interventions. In this article, we have described the usefulness of thromboelastography to monitor the ability of high-purity FIX supplementation to restore a normal coagulation state and to guide the perioperative administration of blood products in a successful orthotopic liver transplantation in a hemophilic patient with deficiencies of factors IX and X, presenting with hepatitis C virus-related cirrhosis and hepatocellular carcinoma.


Assuntos
Fator IX/uso terapêutico , Hemofilia B/cirurgia , Transplante de Fígado/métodos , Tromboelastografia , Hemofilia B/complicações , Hepatite C/complicações , Hepatite C/cirurgia , Humanos , Falência Hepática/cirurgia , Falência Hepática/virologia , Masculino , Pessoa de Meia-Idade , Proteínas Recombinantes/uso terapêutico
13.
Transplant Proc ; 40(6): 1965-71, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18675102

RESUMO

INTRODUCTION: Highly active antiretroviral therapy (HAART) has been able to improve the immune system function and survival of HIV patients with a consequent increase in the number of HIV patients affected by end-stage liver disease (ESLD). Between June 2003 and October 2006, 10 HIV-positive patients underwent liver transplantations in our center. METHODS: All patients were treated with HAART before transplantation; treatment was interrupted on transplantation day and was restarted once the patients' conditions stabilized. Five patients were hepatitis C virus (HCV)-positive, 3 were hepatitis B virus (HBV)-positive, and 2 were HBV-HCV coinfected. HIV viral load before transplantation was <50 copies/mL in all cases. CD4+ cell count before transplantation ranged between 144 and 530 c/microL. Immunosuppression was based on Cyclosporine (CyA) and steroid weaning for 8 patients, and on Tacrolimus and steroid weaning for 2 patients. RESULTS: Five patients were cytomegalovirus (CMV)-positive pp65 antigenemia posttransplantation, and 1 patient was EBV-positive; 2 patients had a coinfection with HHV6. Four patients suffered from a cholestatic HCV recurrent hepatitis treated with antiviral therapy (peginterferon and Ribavirin). Three patients died after transplantation. DISCUSSION: The outcome of liver transplantation in HIV patients was influenced by infections (HCV, CMV, and EBV) and Kaposi's Sarcoma. HCV recurrence was more aggressive, showing a faster progression in this patient population. Drug interaction between HAART and immunosuppressants occurs; longer follow-up and better experience may improve the management of these drug interactions.


Assuntos
Infecções por HIV/complicações , Hepatite C/complicações , Hepatite C/cirurgia , Imunossupressores/uso terapêutico , Falência Hepática/complicações , Falência Hepática/cirurgia , Transplante de Fígado/métodos , Adulto , Terapia Antirretroviral de Alta Atividade , Contagem de Linfócito CD4 , Contraindicações , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/imunologia , Soropositividade para HIV , Humanos , Masculino , Pessoa de Meia-Idade , Sarcoma de Kaposi , Doadores de Tecidos , alfa-Fetoproteínas/análise
14.
Transplant Proc ; 40(6): 1937-40, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18675094

RESUMO

INTRODUCTION: In liver transplantation (OLT) a porto-caval shunt is a well-defined technique practiced by many surgeons in several centers. METHODS: We considered 186 cadaveric OLT patients who underwent a cavo-cavostomy-type reconstruction; they were divided into two groups: those in whom we performed a porto-caval shunt (group A) and those in whose we did not (group B). We evaluated several variables: warm and total ischemia time, intraoperative blood and fresh frozen plasma transfusions, crystalloid and colloid requirements, blood loss, operative duration, hemodynamic intraoperative changes and diuresis, length of hospital stay, and creatinine values at days 1 and 2, and at discharge day. RESULTS: Total and warm ischemic time differed significantly between the two groups. Infusion of blood, fresh frozen plasma, colloid, and crystalloid did not significantly differ. Blood loss was lower, and intraoperative diuresis was not significantly increased in group A subjects. Postoperative hospitalizations were 16.5 and 17.8 days and operative times, 504 and 611 minutes in the two groups. Both cardiac index and ejection fraction values during the anhepatic phase were significantly greater among group A than group B patients. PAD at the two phases was greater in group B. The PAS was significantly different only at reperfusion time. Creatinine values were significantly different at discharge. Better survival was shown for group A patients over group B subjects. CONCLUSION: The results presented herein confirmed that a porto-caval shunt during OLT was a safe, useful expedient contributing to an improved hemodynamic status and a better time distribution in the various phases of liver transplantation.


Assuntos
Transplante de Fígado/métodos , Derivação Portocava Cirúrgica/métodos , Perda Sanguínea Cirúrgica , Cadáver , Hemodinâmica/fisiologia , Humanos , Período Intraoperatório , Seleção de Pacientes , Estudos Retrospectivos , Segurança , Doadores de Tecidos
15.
Transplant Proc ; 39(6): 1930-2, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17692656

RESUMO

INTRODUCTION: Since 1999, a new immunosuppressive drug was administered to renal transplant patients. The SRL molecule acts by blocking post-receptor signal transduction of interleukin-2 (IL-2) interacting with a family of intracellular binding proteins termed immunophilins FKBPs. Among these FKBPs, FK506 12-kd binding protein is the most relevant. SRL is an immunosuppressive drug. Therefore it can inhibit the immune system; at the same time the drug is not nephrotoxic, neurotoxic, and without diabetogenic effects. METHODS: Among 285 patients who underwent liver transplantation, 27 took Sirolimus as monotherapy. Immunosuppressive treatment upto cyclosporine (CsA) or tacrolimus (FK) associated with steroids (methylprednisolone) and mycophenolate Mofetil (MMF) was initiated among subjects with pre-transplant renal failure. SRL was administered as monotherapy for patients who developed nephrotoxicity, or neurotoxicity, or diabetes. Moreover, patients affected by multifocal HCC who did not meet the Milan criteria or patients who developed Kaposi's Sarcoma were prescribed SRL monotherapy. RESULTS: Nephrotoxicity occurred in 14 patients with mean serum creatinine level 2.2 mg/dl. Eleven patients with real failure showed significant improvements after a mean period of 28 days of SRL monotherapy (range: 6-45 days). The mean creatinine serum level after treatment with SRL monotherapy was 1.0 mg/dl (range: 0.7-1.2 mg/dl). Neurotoxicity occurred in 4 patients with tremor, confusion, and agitation. Each patient had complete improvement of symptoms after a few days of Sirolimus monotherapy. Among Three patients who developed Kaposi's Sarcoma, two underwent remission. One patient had diabetes due to calcineurin inhibitors, and one showed arterial hypertension not treatable with drugs. After the switch, we treated these patients with medications. Another important indication was HCC not meeting the Milan criteria. CONCLUSION: SRL monotherapy may be used to manage complication of calcineurin inhibitors or Kaposi's Sarcoma.


Assuntos
Imunossupressores/uso terapêutico , Transplante de Fígado/imunologia , Sirolimo/uso terapêutico , Humanos , Interleucina-2/sangue , Seleção de Pacientes , Cuidados Pré-Operatórios , Sirolimo/efeitos adversos
16.
Transplant Proc ; 39(6): 1947-9, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17692662

RESUMO

The objective of the study was to assess the incidence, risk factors, and survival of gram-positive bloodstream infections (GP-BSI(s)) among liver transplant recipients during the first year after transplantation. Between October 2000 and September 2006, 42 episodes of GP-BSI(s) occurred in 205 patients with an overall incidence of 0.20 episodes/patient. Coagulase-negative staphylococci were detected in 45.2% of cases, Enterococcus species in 42.9% (E faecalis, eight; E faecium, seven; E avium, two; E gallinarum, one) and Staphylococcus aureus in 11.9%. Retransplantation was the only independent risk factor for GP-BSI (odds ratio [OR], 0.253; 95% confidence interval (CI), 0.089 to 0.715; P = .009). Thirty-day mortality rate was 28.5% and S aureus infections were related to a poorer outcome. It is noteworthy that all the isolates of S aureus were methicillin-resistant. Ampicillin was inactive against all the strains of E faecium and 50% of E avium isolates, but active against all E faecalis and E gallinarum strains. All the isolates were glycopeptide-susceptible. No significant differences in mortality rate were observed in relation to sex, etiologies of end-stage liver disease, cytomegalovirus infection/reinfection, type of donor, rejection, or retransplantation. GP-BSI, the only independent risk factor for death (OR, 0.262; 95% CI, 0.106 to 0.643; P = .003), reduced the survival rate by 26% in the first year posttransplant. In conclusion, GP-BSI(s) impact significantly on morbidity and mortality posttransplant, particularly among retransplantations. Control measures are required to reduce the incidence of GP-BSI(s) in liver transplant recipients. These findings must be considered when empirical antimicrobial therapy is indicated while awaiting blood-culture results.


Assuntos
Infecções por Bactérias Gram-Positivas/sangue , Transplante de Fígado/efeitos adversos , Adulto , Enterococcus/isolamento & purificação , Feminino , Humanos , Incidência , Hepatopatias/classificação , Hepatopatias/cirurgia , Transplante de Fígado/mortalidade , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Análise de Sobrevida
18.
Transplant Proc ; 38(4): 1083-5, 2006 May.
Artigo em Inglês | MEDLINE | ID: mdl-16757271

RESUMO

This report describes a case of pulmonary tuberculosis in a liver transplant patient without a history of previous exposure to Mycobacterium tuberculosis (MTB) complex. Prior to transplantation, the tuberculin skin test was negative and the QuantiFERON-TB Gold (QFT Gold), an interferon gamma-based blood test, was negative before and after transplant including a period beginning on postoperative day 55 when the patient developed a febrile illness with an interstitial infiltrate and pleural effusion that was unresponsive to broad-spectrum antibiotic therapy. Empiric treatment with isoniazid, ethambutol, and levofloxacin resulted in resolution of the clinical symptoms. A sputum culture grew MTB on postoperative day 87. This case illustrates the need for caution when QFT Gold is used as diagnostic tool for latent tuberculosis during the pretransplant assessment. Further studies evaluating the usefulness of QFT Gold and other interferon gamma tests in posttransplantation active infection are warranted.


Assuntos
Transplante de Fígado , Complicações Pós-Operatórias/microbiologia , Tuberculose/diagnóstico , Adulto , Anemia/etiologia , Humanos , Interferon gama/sangue , Masculino , Mycobacterium tuberculosis , Teste Tuberculínico
19.
Transplant Proc ; 38(4): 1138-40, 2006 May.
Artigo em Inglês | MEDLINE | ID: mdl-16757288

RESUMO

The pharmacokinetic interaction between highly active antiretroviral therapy (HAART) and immunosuppressive drugs is a critical element in the management of patients with human immunodeficiency virus infection who undergo orthotopic liver transplantation (OLT). We describe the effect of the coadministration of Amprenavir/Ritonavir (APV/r) and FosAmprenavir (FosAPV) on cyclosporine (CsA) concentrations in two patients receiving OLT for end-stage liver disease due to hepatitis C Virus. Patient 1, who was maintained on 300 mg CsA twice a day with a trough concentration (C(trough)) around 250 ng/mL, restarted HAART 12 days after transplantation with 300 mg APV/r twice a day with corresponding APV C(trough) of 5293 ng/mL and RTV C(trough) of 186 ng/mL. Forty-eight hours after initiation of HAART, C(trough) of CsA was 1200 mg/mL, so it was necessary to reduce the CsA dosage 12-fold (50 mg every day) to achieve a therapeutic effect. In Patient 2, who was maintained on 300 mg CsA twice a day and a corresponding C(trough) of 400 ng/mL, HAART was restarted 12 days post-OLT with FosAPV 1400 mg twice a day. After 48 hours C(trough) of CsA was around 600 ng/mL and C(trough) of FosAPV, 1221 ng/mL. In this case it was necessary to reduce the CsA administration 3.5-fold (175 mg every day). In conclusion, therapeutic drug monitoring was necessary to monitor HAART and CsA post-OLT to prevent toxicity due to both therapies. The use of FosAPV without ritonavir boostering is sufficient to maintain adequate CsA blood concentrations, avoiding any event of toxicity.


Assuntos
Fármacos Anti-HIV/farmacocinética , Carbamatos/farmacocinética , Infecções por HIV/tratamento farmacológico , Imunossupressores/farmacocinética , Transplante de Fígado/imunologia , Organofosfatos/farmacocinética , Sulfonamidas/farmacocinética , Adulto , Fármacos Anti-HIV/uso terapêutico , Carbamatos/uso terapêutico , Furanos , Hepatite C/cirurgia , Humanos , Imunossupressores/uso terapêutico , Masculino , Taxa de Depuração Metabólica , Pessoa de Meia-Idade , Organofosfatos/uso terapêutico , Sulfonamidas/uso terapêutico , Resultado do Tratamento
20.
Transplant Proc ; 38(4): 1068, 2006 May.
Artigo em Inglês | MEDLINE | ID: mdl-16757266

RESUMO

An accurate in vivo preparation of the hepatic hilum is a fundamental prerequisite for a successful multiorgan transplantation. Our preferred technique in this surgical setting is in vivo procurement in the heart-beating donor. This technique allows an effective exposition of the hilum structures and recognition of anatomical vascular variants, particularly those of the hepatic artery. Also, the cold ischemia time is drastically reduced, and the back-table preparation is left to a minimum. In this article we show the results of a consecutive series of 250 procurements.


Assuntos
Hepatectomia , Fígado/anatomia & histologia , Doadores Vivos , Preservação de Órgãos/métodos , Coleta de Tecidos e Órgãos/métodos , Vísceras , Humanos , Vísceras/cirurgia
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