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1.
Gastro Hep Adv ; 3(3): 344-352, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39131134

RESUMEN

Farnesoid X receptor (FXR) agonists have emerged as a promising therapeutic strategy for the management of various gastrointestinal (GI) diseases, including primary biliary cholangitis, nonalcoholic fatty liver disease, inflammatory bowel disease, alcohol-related liver disease, and primary sclerosing cholangitis. In this review, we discuss the mechanisms of action of FXR agonists, including their metabolic and immunomodulatory effects, and provide an overview of the clinical evidence supporting their use in the treatment of GI diseases. We also highlight the safety, adverse effects, and potential drug interactions associated with FXR agonists. While these agents have demonstrated efficacy in improving liver function, reducing hepatic steatosis, and improving histological endpoints in primary biliary cholangitis and nonalcoholic fatty liver disease, further research is needed to determine their long-term safety and effectiveness in other GI diseases, such as inflammatory bowel disease, alcohol-related liver disease, and primary sclerosing cholangitis. Additionally, the development of next-generation FXR agonists with improved potency and reduced side effects could further enhance their therapeutic potential.

2.
Clin Liver Dis ; 27(1): 1-16, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36400459

RESUMEN

Liver enzyme tests are very commonly ordered by physicians, and when they return as abnormal, they can pose a clinical challenge to the provider. Markedly abnormal liver enzymes indicate severe hepatic injury and require immediate evaluation. There are various causes for abnormal liver tests, including infectious, autoimmune, genetic, metabolic, drug, and vascular causes. An understanding of the patterns of aminotransferase and alkaline phosphatase elevations is useful in narrowing the differential diagnosis. A thorough history and physical examination, appropriate blood testing, and imaging are typically key to evaluating the patient with abnormal liver enzymes.


Asunto(s)
Hepatopatías , Humanos , Pruebas de Función Hepática , Hepatopatías/etiología , Fosfatasa Alcalina , Diagnóstico Diferencial
3.
Clin Liver Dis (Hoboken) ; 19(5): 194-197, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35662866

RESUMEN

Content available: Audio Recording.

4.
Dig Dis Sci ; 67(10): 4929-4938, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-35534742

RESUMEN

BACKGROUND: Hepatic hydrothorax (HHT) is an uncommon but significant complication of cirrhosis and portal hypertension, associated with a worse prognosis and mortality. Nearly 25% of patients with HHT will have refractory pleural effusion. It is unclear if refractory HHT has a different prognosis compared to refractory ascites. AIMS: We aim to evaluate the prognostic significance of refractory HHT when compared to refractory ascites. METHODS: Forty-seven patients who had refractory HHT in a tertiary care center were identified, and matched, retrospectively, one-to-one by age, gender and MELD-Na with 47 patients with refractory ascites. One-year mortality rate was compared between both groups. Cox proportional hazard regression was used to identify the association between different covariates and primary endpoint. RESULTS: The 1-year mortality was 51.06% in the HHT group compared to 19.15% in the refractory ascites group. The median survival for patients with refractory hepatic hydrothorax was 4.87 months while the median survival for patients with refractory ascites exceeded 1 year. The presence of HHT was statistically significant in predicting the development of 1-year mortality [Hazard Ratio (HR) 4.45, 95% Confidence Interval (CI) 2.25-8.82; P value < 0.001]. Furthermore, refractory HHT remained associated with one-year mortality after adjusting for all other covariates. In a subgroup of patients with MELD-Na ≤ 20, HHT continued to be a significant predictor of one-year mortality (HR 3.30, 95% CI 1.47-7.40; P value 0.004). CONCLUSIONS: Refractory HHT is a significant independent predictor of mortality and offers additional prognostic value.


Asunto(s)
Hidrotórax , Hipertensión Portal , Ascitis/etiología , Humanos , Hidrotórax/etiología , Hipertensión Portal/complicaciones , Cirrosis Hepática/complicaciones , Estudios Retrospectivos
7.
Hepatol Commun ; 5(2): 323-333, 2021 02.
Artículo en Inglés | MEDLINE | ID: mdl-33553978

RESUMEN

Acquired hepatocerebral degeneration refers to a neurological syndrome consisting of various movement disorders and cognitive impairment in advanced liver cirrhosis or portosystemic shunt. Neurological signs and symptoms may be attributed to the accumulation of toxic substances in the brain. The most common neurological presentation of this is parkinsonism. Our prospective study aimed to investigate the prevalence of parkinsonism in patients with cirrhosis who were evaluated for liver transplant and to identify any correlation between findings on brain magnetic resonance imaging (MRI) and severity of parkinsonism. Of the 120 enrolled participants with liver cirrhosis, 62 (52%) exhibited signs of parkinsonism and all had MRI basal ganglia hyperintensity. Eighteen patients from this group were transplanted and showed statistically significant improvements in their Unified Parkinson's Disease Rating Scale (UPDRS) scores. Conclusion: The data suggest the reversibility of the neurological impairment seen in cirrhosis, and therefore the effectiveness of transplantation in improving parkinsonian symptoms. There was no correlation between severity of MRI findings and clinical motor UPDRS part III. Laboratory findings showed no correlation among the abnormal levels, MRI brain signal abnormality, or UPDRS scores.


Asunto(s)
Encéfalo/patología , Cirrosis Hepática/complicaciones , Trastornos Parkinsonianos/diagnóstico , Trastornos Parkinsonianos/epidemiología , Adulto , Anciano , Femenino , Humanos , Cirrosis Hepática/cirugía , Trasplante de Hígado/estadística & datos numéricos , Imagen por Resonancia Magnética , Masculino , Massachusetts/epidemiología , Persona de Mediana Edad , Trastornos Parkinsonianos/patología , Prevalencia , Estudios Prospectivos , Índice de Severidad de la Enfermedad , Adulto Joven
8.
Clin Liver Dis ; 24(2): 219-229, 2020 05.
Artículo en Inglés | MEDLINE | ID: mdl-32245529

RESUMEN

The presence of hepatic encephalopathy is often associated with worse clinical outcomes and increased mortality. Even subclinical hepatic encephalopathy has clinical impacts on daily life and has been linked to increased falls, motor vehicle accidents, and hospitalizations. The presence and degree of hepatic encephalopathy can also affect survival outcomes in cirrhosis, acute liver failure, and liver transplant recipients. Patients may have improved clinical outcomes after treatment of hepatic encephalopathy, but the long-term impact of treatment on prognosis is unclear.


Asunto(s)
Encefalopatía Hepática , Cirrosis Hepática , Enfermedades Asintomáticas , Encefalopatía Hepática/tratamiento farmacológico , Encefalopatía Hepática/etiología , Humanos , Cirrosis Hepática/complicaciones , Cirrosis Hepática/fisiopatología , Cirrosis Hepática/cirugía , Trasplante de Hígado/efectos adversos , Periodo Posoperatorio , Periodo Preoperatorio , Pronóstico , Factores de Riesgo , Tasa de Supervivencia
9.
JGH Open ; 4(2): 256-259, 2020 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-32280774

RESUMEN

BACKGROUND AND AIM: Enteric tube (ET) placement is approached with caution in patients with esophageal varices (EV) due to concern of causing variceal bleeding. Data are limited on rates and predictors of gastrointestinal bleeding (GIB) in these patients. This study aims to assess the rate and predictors of bleeding from EV after ET placement. METHODS: We performed a retrospective chart review on patients requiring ET access with known EV. Inclusion criteria were age >18 with endoscopically proven EV who required ET placement. Patients who were admitted with, or developed a GIB prior to placement of ET were excluded, as were patients admitted for liver transplantation. Primary outcome was incidence of GIB within 48 h of tube placement. Secondary outcome was a >2 g/dL drop in hemoglobin within 48 h of placement without evidence of bleed. Statistical analysis was performed using Fischer's exact test, Mann-Whitney U test, and univariate logistic regression model. RESULTS: A total of 75 patients were included in the analysis. The most common etiology of cirrhosis was alcohol (44%). The most common location of EV was in the lower third of the esophagus (61%). The primary outcome was observed in 11 (14.6%) patients. The secondary outcome was found in eight (10.6%) patients. On univariate analysis, GIB was associated with higher MELD-Na (P = 0.026) and EV located in the lower third of the esophagus (P = 0.048). CONCLUSION: ET placement in patients with EV is associated with low risk of bleeding. Elevated MELD-Na and lower EV location conferred a higher risk of bleeding after ET placement.

10.
Liver Transpl ; 23(12): 1541-1552, 2017 12.
Artículo en Inglés | MEDLINE | ID: mdl-28703464

RESUMEN

Though serum iron has been known to be associated with an increased risk of infection, hepcidin, the major regulator of iron metabolism, has never been systematically explored in this setting. Finding early biomarkers of infection, such as hepcidin, could help identify patients in whom early empiric antimicrobial therapy would be beneficial. We prospectively enrolled consecutive patients (n = 128) undergoing first-time, single-organ orthotopic liver transplantation (OLT) without known iron overload disorders at 2 academic hospitals in Boston from August 2009 to November 2012. Cox regression compared the associations between different iron markers and the development of first infection at least 1 week after OLT; 47 (37%) patients developed a primary outcome of infection at least 1 week after OLT and 1 patient died. After adjusting for perioperative bleeding complications, number of hospital days, and hepatic artery thrombosis, changes in iron markers were associated with the development of infection post-OLT including increasing ferritin (hazard ratio [HR], 1.51; 95% confidence interval [CI], 1.12-2.05), rising ferritin slope (HR, 1.10; 95% CI, 1.03-1.17), and increasing hepcidin (HR, 1.43; 95% CI, 1.05-1.93). A decreasing iron (HR, 1.76; 95% CI, 1.20-2.57) and a decreasing iron slope (HR, 4.21; 95% CI, 2.51-7.06) were also associated with subsequent infections. In conclusion, hepcidin and other serum iron markers and their slope patterns or their combination are associated with infection in vulnerable patient populations. Liver Transplantation 23 1541-1552 2017 AASLD.


Asunto(s)
Enfermedades Transmisibles/sangre , Enfermedad Hepática en Estado Terminal/cirugía , Hierro/sangre , Trasplante de Hígado/efectos adversos , Complicaciones Posoperatorias/sangre , Biomarcadores/sangre , Boston/epidemiología , Enfermedades Transmisibles/epidemiología , Enfermedades Transmisibles/inmunología , Enfermedades Transmisibles/microbiología , Femenino , Ferritinas/sangre , Hepcidinas/sangre , Interacciones Huésped-Patógeno/inmunología , Humanos , Huésped Inmunocomprometido , Hierro/metabolismo , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/inmunología , Complicaciones Posoperatorias/microbiología , Estudios Prospectivos , Reoperación/estadística & datos numéricos , Medición de Riesgo/métodos , Resultado del Tratamiento
11.
Liver Transpl ; 22(9): 1214-22, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-27339253

RESUMEN

Primary sclerosing cholangitis (PSC) recurs in 15%-25% of patients transplanted for PSC. In the United States, PSC transplant patients are more likely to receive an organ from a living donor (LD) than patients without PSC. Our aims were to (1) compare risk of PSC recurrence in LD versus deceased donor recipients and (2) identify risk factors for PSC recurrence. There were 241 living donor liver transplantations (LDLTs) and 65 deceased donor liver transplantation (DDLT) patients transplanted between 1998 and 2013 enrolled in the Adult-to-Adult Living Donor Liver Transplantation Cohort Study who were evaluated. PSC recurrence risk for LDLT and DDLT recipients was compared using Kaplan-Meier survival curves and log-rank tests. Cox models were used to evaluate PSC risk factors. Overall PSC recurrence probabilities were 8.7% and 22.4% at 5 and 10 years after liver transplantation (LT), respectively. The risk of PSC recurrence was not significantly different for DDLT versus LDLT recipients (P = 0.36). For DDLT versus LDLT recipients, unadjusted 5- and 10-year PSC recurrence was 9.4% versus 9.5% and 36.9% versus 21.1%. Higher laboratory Model for End-Stage Liver Disease (MELD) score at LT, onset of a biliary complication, cholangiocarcinoma, and higher donor age were associated with increased risks of PSC recurrence: for MELD (hazard ratio [HR] = 1.06; 95% confidence interval [CI] 1.02-1.10 per MELD point, P = 0.002); for biliary complication (HR, 2.82; 95% CI, 1.28-6.25; P = 0.01); for cholangiocarcinoma (HR, 3.98; 95% CI, 1.43-11.09; P = 0.008); for donor age (per 5-years donor age; HR, 1.17; 95% CI, 1.02-1.35; P = 0.02). Factors not significantly associated with PSC recurrence included the following: first-degree relative donor (P = 0.11), post-LT cytomegalovirus infection (P = 0.38), and acute rejection (P = 0.22). Risk of recurrent PSC was not significantly different for DDLT and LDLT recipients. Biliary complications, cholangiocarcinoma, MELD, and donor age were significantly associated with risk of PSC recurrence. Liver Transplantation 22 1214-1222 2016 AASLD.


Asunto(s)
Colangitis Esclerosante/cirugía , Enfermedad Hepática en Estado Terminal/cirugía , Trasplante de Hígado/métodos , Recolección de Tejidos y Órganos/métodos , Adulto , Colangitis Esclerosante/complicaciones , Colangitis Esclerosante/mortalidad , Enfermedad Hepática en Estado Terminal/etiología , Enfermedad Hepática en Estado Terminal/mortalidad , Femenino , Estudios de Seguimiento , Supervivencia de Injerto , Humanos , Estimación de Kaplan-Meier , Trasplante de Hígado/efectos adversos , Donadores Vivos , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias , Modelos de Riesgos Proporcionales , Estudios Prospectivos , Recurrencia , Estudios Retrospectivos , Factores de Riesgo , Índice de Severidad de la Enfermedad , Estados Unidos
12.
Clin Transplant ; 30(4): 452-60, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26854475

RESUMEN

Hepatitis C virus (HCV) infection is accelerated following liver transplantation (LT). Single nucleotide polymorphisms (SNPs) near the epidermal growth factor (EGF) (rs4444903), IL28B (rs12979860), and PNPLA3 (rs738409) loci are associated with treatment response, fibrosis, and hepatocellular carcinoma in non-transplant hepatitis C, but allograft population data are limited. We sought to determine the role of these SNPs in 264 patients with HCV who underwent LT between 1990 and 2008. Genotypes were determined from donor wedge/allograft biopsies and recipient explants. Cox proportional hazards model was used to assess time to cirrhosis, liver-related death, and retransplantation, adjusting for donor age and sustained virological response (SVR). Over a median follow-up of 6.3 yr, a trend toward increased progression to graft cirrhosis was observed among recipients of an EGF non-AA vs. AA donor liver (adjusted HR 2.01; 95% CI 0.93-4.34; p = 0.08). No other genotypes predicted cirrhosis development or graft survival. The CC IL28B variant in both recipients and donors was associated with increased rate of SVR (R-CC/D-CC 8/12[67%], R-non-CC/D-CC or R-CC/D-non-CC 23/52[44%], R-non-CC/D-non-CC 12/45[27%], p linear trend = 0.009). Recipient EGF, IL28B, and PNPLA3, and donor IL28B and PNPLA3 genotypes do not predict adverse outcomes in HCV LT recipients. A potential association exists between donor EGF genotype and cirrhosis.


Asunto(s)
Factor de Crecimiento Epidérmico/genética , Hepatitis C Crónica/cirugía , Interleucinas/genética , Lipasa/genética , Cirrosis Hepática/genética , Trasplante de Hígado , Proteínas de la Membrana/genética , Polimorfismo de Nucleótido Simple/genética , Complicaciones Posoperatorias , Adulto , Aloinjertos , Antivirales/uso terapéutico , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/tratamiento farmacológico , Carcinoma Hepatocelular/etiología , Estudios de Cohortes , Progresión de la Enfermedad , Femenino , Estudios de Seguimiento , Genotipo , Rechazo de Injerto/tratamiento farmacológico , Rechazo de Injerto/etiología , Supervivencia de Injerto , Hepacivirus/patogenicidad , Hepatitis C Crónica/virología , Humanos , Interferones , Cirrosis Hepática/etiología , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/tratamiento farmacológico , Neoplasias Hepáticas/etiología , Masculino , Persona de Mediana Edad , Pronóstico , Factores de Riesgo , Donantes de Tejidos , Trasplante Homólogo , Adulto Joven
13.
J Clin Gastroenterol ; 46(8): 700-8, 2012 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-22739223

RESUMEN

GOALS: To evaluate the safety and efficacy of peginterferon-α-2b plus ribavirin in patients with recurrent hepatitis C after orthotopic liver transplant. BACKGROUND: Reinfection of liver allografts in hepatitis C virus -infected transplant recipients begins immediately after transplantation. Treatment of these patients is challenging because of poor tolerability. STUDY: A multicenter, open-label study enrolling patients with persistent viremia after primary orthotopic liver transplant for cirrhosis related to hepatitis C virus infection. Patients received peginterferon-α-2b (1.5 µg/kg/wk) plus ribavirin (400 to 1200 mg/d administered using a dose-escalating regimen and according to body weight) for 48 weeks. The primary endpoint was sustained virologic response (SVR). RESULTS: In total, 125 patients started treatment and 58.4% completed 48 weeks. SVR rate was 28.8% (G1, 23.8%; G2/3, 55.0%), end-of-treatment response rate was 40.8%, and relapse rate was 18.2%. SVR was 55% among patients who completed treatment. Genotype 2/3 infection, male sex, baseline hemoglobin>14 g/dL, 80:80:80 compliance, rapid virologic response (RVR), and complete early virologic response (cEVR) were predictors of SVR. SVR was higher among patients with RVR compared with those without RVR (83.3% vs. 25.7%; P=0.0098), and among patients with cEVR compared with those without EVR (66.7% vs. 1.8%; P<0.0001). Thirty-eight patients discontinued because of an adverse event and 69 required dose reduction or interruption. Anemia (74%) and neutropenia (30%) were common, and rejection was low (3.2%). CONCLUSIONS: SVR was low in this study. Anemia was a particular challenge in achieving maximal ribavirin therapeutic exposure and may account in part for the lower SVR.


Asunto(s)
Antivirales , Hepatitis C/prevención & control , Interferón-alfa , Trasplante de Hígado/efectos adversos , Polietilenglicoles , Ribavirina/uso terapéutico , Adolescente , Adulto , Anciano , Antivirales/efectos adversos , Antivirales/uso terapéutico , Quimioterapia Combinada , Femenino , Hepatitis C/tratamiento farmacológico , Hepatitis C/virología , Humanos , Interferón alfa-2 , Interferón-alfa/efectos adversos , Interferón-alfa/uso terapéutico , Masculino , Persona de Mediana Edad , Polietilenglicoles/efectos adversos , Polietilenglicoles/uso terapéutico , Proteínas Recombinantes/efectos adversos , Proteínas Recombinantes/uso terapéutico , Ribavirina/efectos adversos , Prevención Secundaria , Resultado del Tratamiento , Adulto Joven
14.
Clin Liver Dis ; 16(2): 285-99, 2012 May.
Artículo en Inglés | MEDLINE | ID: mdl-22541699

RESUMEN

Ascites is the pathologic accumulation of fluid in the peritoneum. It is the most common complication of cirrhosis, with a prevalence of approximately 10%. Over a 10-year period, 50% of patients with previously compensated cirrhosis are expected to develop ascites. As a marker of hepatic decompensation, ascites is associated with a poor prognosis, with only a 56% survival 3 years after onset. In addition, morbidity is increased because of the risk of additional complications, such as spontaneous bacterial peritonitis and hepatorenal syndrome. Understanding the pathophysiology of ascites is essential for its proper management.


Asunto(s)
Ascitis/fisiopatología , Ascitis/terapia , Síndrome Hepatorrenal/fisiopatología , Cirrosis Hepática/fisiopatología , Peritonitis/microbiología , Ascitis/diagnóstico , Ascitis/etiología , Infecciones Bacterianas/tratamiento farmacológico , Síndrome Hepatorrenal/complicaciones , Síndrome Hepatorrenal/diagnóstico , Síndrome Hepatorrenal/terapia , Humanos , Cirrosis Hepática/complicaciones , Peritonitis/complicaciones , Peritonitis/tratamiento farmacológico
15.
Liver Transpl ; 16(8): 983-9, 2010 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-20677289

RESUMEN

Pulmonary arterial hypertension (PAH) associated with portal hypertension [portopulmonary hypertension (PPHTN)] occurs in 2% to 10% of patients with advanced liver disease and carries a very poor prognosis without treatment. Most hepatic transplantation centers consider moderate to severe PPHTN to be a contraindication to liver transplantation because of the high rate of perioperative complications. We present 3 patients with PPHTN who were managed with intravenous prostacyclin therapy followed by living donor liver transplantation (LDLT). These individuals demonstrated subsequent resolution of their pulmonary hypertension and were weaned off all PAH-specific medical therapy. We present their demographics, clinical courses, and hemodynamics. We discuss the potential indications for LDLT and risks with respect to this patient population. Limitations of the Model for End-Stage Liver Disease scoring system and outcome data for this patient population are reviewed. Future studies should be directed toward better defining indications for LDLT in patients with PPHTN, improving medicosurgical management, and assessing long-term outcomes.


Asunto(s)
Hipertensión Portal/terapia , Hipertensión Pulmonar/terapia , Trasplante de Hígado/métodos , Adulto , Femenino , Gastroenterología/métodos , Humanos , Hipertensión Portal/cirugía , Hipertensión Pulmonar/cirugía , Donadores Vivos , Masculino , Persona de Mediana Edad , Pronóstico , Factores de Riesgo , Obtención de Tejidos y Órganos/métodos , Resultado del Tratamiento
16.
Arthritis Rheum ; 62(7): 2152-9, 2010 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-20506150

RESUMEN

OBJECTIVE: An uncommon manifestation of hepatitis C virus (HCV) infection is systemic vasculitis associated with type II cryoglobulinemia (cryoglobulinemic vasculitis), a proliferative B cell disorder that transforms into B cell malignancy in 5-10% of patients. The monoclonal rheumatoid factors (mRF) that bear the WA cross-idiotype (Xid) are responsible for most cases of cryoglobulinemic vasculitis in patients with HCV infection. The purpose of this study was to determine whether WA B cells can be detected in asymptomatic patients with HCV infection, using sequence analysis of B cell clonal expansions (BCEs) to identify the WA Xid. METHODS: Asymptomatic patients with HCV infection and those without HCV infection as well as respective control patients with cryoglobulinemic vasculitis, whose serum was either negative or positive for WA mRF, were studied. BCEs were isolated in the patients' blood, and WA BCEs were identified by sequencing analysis. RESULTS: BCEs were detected in all control patients with cryoglobulinemic vasculitis, but only control patients with HCV infection had WA BCEs. None of the 33 asymptomatic patients without HCV infection had a BCE. WA BCEs were detected in 4 (7.4%) of 55 asymptomatic patients with HCV infection, in none of 14 patients with HCV infection and type III cryoglobulinemia, and in 5 (13.5%) of 37 patients with HCV infection and serum RF positivity. One patient with a WA BCE had splenic lymphoma markers and villous lymphocytes, and the villous lymphocytes were found to be WA B cells. CONCLUSION: By identification of the WA Xid, WA B cells can be detected in asymptomatic HCV-infected patients. WA B cells in asymptomatic patients with HCV infection may be a marker for the development of cryoglobulinemic vasculitis and associated B cell malignancies. The results of this study provide a basis for the development of the first practical clinical application of cross-idiotype analysis.


Asunto(s)
Linfocitos B/inmunología , Crioglobulinemia/inmunología , Hepatitis C Crónica/inmunología , Idiotipos de Inmunoglobulinas/inmunología , Vasculitis/inmunología , Adulto , Linfocitos B/patología , Biomarcadores de Tumor/inmunología , Crioglobulinemia/complicaciones , Crioglobulinemia/patología , Femenino , Genes de Inmunoglobulinas , Hepatitis C Crónica/complicaciones , Hepatitis C Crónica/patología , Humanos , Leucemia de Células B , Linfoma de Células B , Masculino , Persona de Mediana Edad , Pronóstico , Vasculitis/complicaciones , Vasculitis/patología
18.
Liver Transpl ; 15(2): 126-35, 2009 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-19177439

RESUMEN

Recurrent hepatitis C after liver transplantation is a universal phenomenon. Graft reinfection occurs rapidly; once it is established, allograft cirrhosis and decompensation rapidly ensue in many patients. Treatment with pegylated interferon plus ribavirin is the standard of care among nontransplant patients with hepatitis C; however, the applicability of these therapies in liver transplant patients is severely limited. Before transplantation, many patients are simply too ill to endure the long treatment duration necessary to achieve viral eradication; thus, treatment-related toxicity is a frequent barrier to success. Clinical trials in the pretransplantation population have yielded poor outcomes, with sustained virologic response rates only as high as 25%. Early after transplantation, treatment may be initiated prophylactically, or it may be initiated therapeutically in patients with evidence of recurrent disease. In small studies, prophylactic therapy has been associated with sustained virologic response rates lower than 20%, whereas in therapeutic intervention studies, sustained virologic response rates have ranged from 20% to 37%. In the setting of therapeutic intervention, preliminary indications suggest that rapid and early virologic response may become important clinical tools enabling the early identification of patients likely to respond to treatment. Two important clinical trials, PHOENIX (Pegasys and Copegus Administered After Liver Transplantation for Hepatitis C) in the prophylactic setting and PROTECT (Pegylated Interferon Alpha-2b and Ribavirin After Orthotopic Liver Transplantation: Efficacy and Safety in Hepatitis C Recurrence Therapy) in the therapeutic setting, are under way and should further advance our understanding of the management of hepatitis C in patients undergoing liver transplantation.


Asunto(s)
Antivirales/uso terapéutico , Hepatitis C/tratamiento farmacológico , Trasplante de Hígado , Quimioterapia Combinada , Hepatitis C/prevención & control , Hepatitis C/cirugía , Humanos , Interferón alfa-2 , Interferón-alfa/uso terapéutico , Polietilenglicoles/uso terapéutico , Proteínas Recombinantes , Recurrencia , Ribavirina/uso terapéutico
19.
Surg Clin North Am ; 88(6): 1385-407, x, 2008 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-18992601

RESUMEN

Primary sclerosing cholangitis (PSC) is a generally progressive, sometimes fatal chronic hepatobiliary disorder for which no effective medical therapy now exists. This article describes the epidemiology of this disease, along with diagnosis and treatment options. Future research directions concerning PSC also are discussed.


Asunto(s)
Colangitis Esclerosante , Procedimientos Quirúrgicos del Sistema Digestivo/métodos , Colangitis Esclerosante/diagnóstico , Colangitis Esclerosante/epidemiología , Colangitis Esclerosante/cirugía , Diagnóstico Diferencial , Técnicas de Diagnóstico del Sistema Digestivo , Salud Global , Humanos , Morbilidad/tendencias
20.
Clin Gastroenterol Hepatol ; 6(2): 255-8, 2008 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-18187367

RESUMEN

BACKGROUND & AIMS: Methasteron is a nutritional supplement used to increase weight or accelerate the build-up of muscle mass. The aim of this study was to describe 5 cases of hepatotoxicity in patients using methasteron seen at tertiary-care medical centers. METHODS: A case report design was used. RESULTS: Five previously healthy patients who used methasteron developed jaundice 2 weeks after discontinuation; they presented to a tertiary-care medical center 2 weeks later. Within another 2 to 3 weeks, bilirubin levels peaked. About 12 weeks after initial presentation, all cases resolved with no identifiable residual hepatic dysfunction. CONCLUSIONS: Methasteron use can result in severe hepatotoxicity. Liver failure can worsen after initial presentation, especially within 2 weeks. With close observation and supportive care, acute hepatic injury should resolve.


Asunto(s)
Colestasis Intrahepática/inducido químicamente , Colestasis Intrahepática/complicaciones , Suplementos Dietéticos/efectos adversos , Hepatopatías/diagnóstico , Adulto , Bilirrubina/sangre , Humanos , Ictericia Obstructiva/inducido químicamente , Ictericia Obstructiva/diagnóstico , Hepatopatías/patología , Hepatopatías/fisiopatología , Masculino
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