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1.
Liver Transpl ; 24(3): 380-393, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29171941

RESUMO

Severe alcoholic hepatitis (sAH) is associated with a poor prognosis. There is no proven effective treatment for sAH, which is why early transplantation has been increasingly discussed. Hepatoblastoma-derived C3A cells express anti-inflammatory proteins and growth factors and were tested in an extracorporeal cellular therapy (ELAD) study to establish their effect on survival for subjects with sAH. Adults with sAH, bilirubin ≥8 mg/dL, Maddrey's discriminant function ≥ 32, and Model for End-Stage Liver Disease (MELD) score ≤ 35 were randomized to receive standard of care (SOC) only or 3-5 days of continuous ELAD treatment plus SOC. After a minimum follow-up of 91 days, overall survival (OS) was assessed by using a Kaplan-Meier survival analysis. A total of 203 subjects were enrolled (96 ELAD and 107 SOC) at 40 sites worldwide. Comparison of baseline characteristics showed no significant differences between groups and within subgroups. There was no significant difference in serious adverse events between the 2 groups. In an analysis of the intent-to-treat population, there was no difference in OS (51.0% versus 49.5%). The study failed its primary and secondary end point in a population with sAH and with a MELD ranging from 18 to 35 and no upper age limit. In the prespecified analysis of subjects with MELD < 28 (n = 120), ELAD was associated with a trend toward higher OS at 91 days (68.6% versus 53.6%; P = .08). Regression analysis identified high creatinine and international normalized ratio, but not bilirubin, as the MELD components predicting negative outcomes with ELAD. A new trial investigating a potential benefit of ELAD in younger subjects with sufficient renal function and less severe coagulopathy has been initiated. Liver Transplantation 24 380-393 2018 AASLD.


Assuntos
Circulação Extracorpórea/métodos , Hepatite Alcoólica/terapia , Hepatoblastoma/metabolismo , Neoplasias Hepáticas/metabolismo , Adulto , Austrália , Linhagem Celular Tumoral , Circulação Extracorpórea/efeitos adversos , Circulação Extracorpórea/mortalidade , Feminino , Hepatite Alcoólica/sangue , Hepatite Alcoólica/diagnóstico , Hepatite Alcoólica/mortalidade , Humanos , Análise de Intenção de Tratamento , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco , Índice de Gravidade de Doença , Fatores de Tempo , Resultado do Tratamento , Reino Unido , Estados Unidos
2.
Liver Transpl ; 14(10): 1498-504, 2008 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-18825709

RESUMO

Disseminated herpes simplex virus (HSV) infection may lead to acute liver failure (ALF) and the need for emergency liver transplantation (LT). The primary aim of this study was to determine the utility of HSV serological testing and HSV DNA testing by polymerase chain reaction (PCR) in the diagnosis and management of indeterminate, pregnancy-related, and known HSV-related ALF. Stored sera obtained on study day 1 or 2 from patients enrolled in the United States ALF Study Group with indeterminate (n = 51), pregnancy-related (n = 12), and HSV-related (n = 4) ALF were screened for HSV DNA by PCR and serology. While 7 of the indeterminate and pregnant patients had positive anti-HSV immunoglobulin M, none had detectable HSV DNA. The 4 known HSV cases all had high-titer HSV DNA on presentation (range: 3.5 to 36 x 10(8) copies/mL). Two HSV patients underwent LT but developed posttransplant extrahepatic HSV infection despite suppression of HSV DNA with acyclovir treatment, and one of them eventually died. The 2 other fulminant HSV patients died within 48 hours of presentation. In conclusion, serum HSV DNA indicative of occult HSV infection was not detected in 51 indeterminate and 12 pregnancy-related ALF patients. The 4 patients with known HSV-related ALF all had high HSV DNA levels at presentation, and despite the rapid use of antiviral therapy and emergency LT, substantial morbidity and mortality were encountered, highlighting the poor prognosis with severe disseminated HSV infection.


Assuntos
DNA Viral/sangue , Herpes Simples/diagnóstico , Falência Hepática Aguda/virologia , Complicações Infecciosas na Gravidez/diagnóstico , Simplexvirus/isolamento & purificação , Adulto , Feminino , Herpes Simples/sangue , Herpes Simples/complicações , Humanos , Masculino , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase , Gravidez , Complicações Infecciosas na Gravidez/sangue , Complicações Infecciosas na Gravidez/virologia , Adulto Jovem
3.
Proc (Bayl Univ Med Cent) ; 28(4): 438-42, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26424935

RESUMO

Chronic hepatitis B virus (HBV) infection can be reactivated during lymphoma chemotherapy, specifically with rituximab. In 2008, the Centers for Disease Control and Prevention and, in 2010, the American Society of Clinical Oncology made recommendations that anyone who received cytotoxic or immunosuppressive therapy should be tested for serologic markers of HBV infection. In our study, we wanted to determine the screening rates for HBV infection at our institution and if simply adding a checkbox onto the rituximab order would improve HBV screening. We performed a retrospective chart review of two cohorts of lymphoma patients at Scott & White Health Clinic. Cohort 1 included patients from 1993 to 2008. Cohort 2 included patients who received rituximab after an institutionwide protocol (rituximab order checkbox) was initiated in 2011. A total of 452 patients treated for lymphoma were reviewed. Only 15 of the 404 Cohort 1 patients received HBV screening (3.7%; 95% confidence interval, 2.1%-6.1%). Screening rates were statistically higher if baseline liver laboratory values were elevated (P < 0.0001). HBV was also checked more frequently if patients' liver function tests became elevated while on chemotherapy, 85.7% (12/14). Of the 48 patients in Cohort 2, 33 patients (68.7%) received HBV screening. No patients in either cohort had a positive HBV surface antigen or developed reactivation of HBV during chemotherapy. The addition of a checkbox on the rituximab order form significantly increased our screening for HBV infection in lymphoma patients initiating chemotherapy.

4.
Clin Geriatr Med ; 30(1): 149-67, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24267609

RESUMO

Hepatitis B and hepatitis C are common predisposing factors leading to cirrhosis and liver cancer. Therapies for hepatitis B suppress viral replication and improve morbidity and mortality. Treatment and evaluation of hepatitis B should be similar in all age groups. This article discusses special topics related to hepatitis B and the elderly. Hepatitis C is a treatable disease whose treatment can lead to viral eradication. This article discusses key points regarding hepatitis C diagnosis and treatment in the context of new advances in disease staging and treatment, with special attention on hepatitis C infection in the elderly.


Assuntos
Antivirais/uso terapêutico , Hepatite B , Hepatite C , Hepatopatias/prevenção & controle , Idoso , Gerenciamento Clínico , Transição Epidemiológica , Hepatite B/complicações , Hepatite B/diagnóstico , Hepatite B/epidemiologia , Hepatite B/imunologia , Hepatite B/fisiopatologia , Hepatite C/complicações , Hepatite C/diagnóstico , Hepatite C/epidemiologia , Hepatite C/imunologia , Hepatite C/fisiopatologia , Humanos , Hepatopatias/diagnóstico , Hepatopatias/etiologia , Programas de Rastreamento/métodos , Programas de Rastreamento/organização & administração , Monitorização Imunológica/métodos , Prevalência , Fatores de Risco , Resultado do Tratamento
5.
Clin Liver Dis ; 16(4): 687-98, 2012 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-23101977

RESUMO

Hepatic fibrosis is a known consequence of long-term use of alcohol and is regarded as a turning point in alcohol-induced liver disease because it can lead to cirrhosis. The mechanisms of injury are not well understood, but recent studies have helped advance the understanding of the earliest events in the process that eventually leads to hepatic injury and, in some cases, fibrosis. It is hoped that increasing understanding of the role played by the immune system in the process will lead to the development of new therapies for these patients.


Assuntos
Hepatopatias Alcoólicas/imunologia , Imunidade Adaptativa , Animais , Ativação do Complemento , Progressão da Doença , Endotoxinas/farmacocinética , Células Estreladas do Fígado/imunologia , Células Estreladas do Fígado/patologia , Humanos , Imunidade Inata , Mediadores da Inflamação/imunologia , Interleucinas/imunologia , Células de Kupffer/imunologia , Fígado/metabolismo , Fígado/patologia , Hepatopatias Alcoólicas/etiologia , Hepatopatias Alcoólicas/metabolismo , Hepatopatias Alcoólicas/patologia , Metagenoma , Neutrófilos/imunologia , Neutrófilos/patologia , Espécies Reativas de Oxigênio/metabolismo , Transdução de Sinais , Receptor 4 Toll-Like/imunologia
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