Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 19 de 19
Filtrar
1.
Medicine (Baltimore) ; 100(42): e27436, 2021 Oct 22.
Artículo en Inglés | MEDLINE | ID: mdl-34678872

RESUMEN

ABSTRACT: Liver disease etiology and transplantation outcomes may vary by ethnicity. We aimed to determine if disparities exist in our province.We reviewed the provincial database for liver transplant referrals. We stratified cohorts by ethnicity and analyzed disease etiology and outcomes.Four thousand nine hundred sixteen referrals included 220 South Asians, 413 Asians, 235 First Nations (Indigenous), and 2725 Caucasians. Predominant etiologies by ethnicity included alcohol (27.4%) and primary sclerosing cholangitis (PSC) (8.8%) in South Asians, hepatitis B (45.5%) and malignancy (13.9%) in Asians, primary biliary cholangitis (PBC) (33.2%) and autoimmune hepatitis (AIH) (10.8%) in First Nations, and hepatitis C (35.9%) in Caucasians. First Nations had lowest rate of transplantation (30.6%, P = .01) and highest rate of waitlist death (10.6%, P = .03). Median time from referral to transplantation (268 days) did not differ between ethnicities (P = .47). Likelihood of transplantation increased with lower body mass index (BMI) (hazard ratio [HR] 0.99, P = .03), higher model for end stage liver disease (MELD) (HR 1.02, P < .01), or fulminant liver failure (HR 9.47, P < .01). Median time from referral to ineligibility status was 170 days, and shorter time was associated with increased MELD (HR 1.01, P < .01), increased age (HR 1.01, P < .01), fulminant liver failure (HR 2.56, P < .01) or South Asian ethnicity (HR 2.54, P < .01). Competing risks analysis revealed no differences in time to transplant (P = .66) or time to ineligibility (P = .91) but confirmed increased waitlist death for First Nations (P = .04).We have noted emerging trends such as alcohol related liver disease and PSC in South Asians. First Nations have increased autoimmune liver disease, lower transplantation rates and higher waitlist deaths. These data have significance for designing ethnicity specific interventions.


Asunto(s)
Enfermedad Hepática en Estado Terminal/etnología , Enfermedad Hepática en Estado Terminal/etiología , Enfermedad Hepática en Estado Terminal/cirugía , Trasplante de Hígado/estadística & datos numéricos , Derivación y Consulta/estadística & datos numéricos , Adulto , Factores de Edad , Anciano , Índice de Masa Corporal , Colombia Británica/epidemiología , Etnicidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores de Riesgo , Índice de Severidad de la Enfermedad , Factores Socioeconómicos , Factores de Tiempo , Listas de Espera/mortalidad
2.
Dig Dis Sci ; 66(4): 1343-1348, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-32440746

RESUMEN

BACKGROUND: The expanded Baveno-VI criteria may further reduce the need for screening gastroscopy compared to Baveno-VI criteria. AIM: We sought to validate the performance of these criteria in a cohort of compensated advanced chronic liver disease (cACLD) patients with predominantly hepatitis B infection. METHODS: Consecutive cACLD patients from 2006 to 2012 with paired liver stiffness measurements and screening gastroscopy within 1 year were included. The expanded Baveno-VI criteria were applied to evaluate the sensitivity (SS), specificity (SP), positive predictive value (PPV) and negative predictive value (NPV) for the presence of high-risk varices (HRV). RESULTS: Among 165 cACLD patients included, 17 (10.3%) had HRV. The commonest etiology of cACLD was chronic hepatitis B (36.4%) followed by NAFLD (20.0%). Application of expanded Baveno-VI criteria avoided more screening gastroscopy (43.6%) as compared to the original Baveno-VI criteria (18.8%) without missing more HRV (1 with both criteria). The overall SS, SP, PPV and NPV of the expanded Baveno-VI criteria in predicting HRV were 94.1%, 48.0%, 17.2% and 98.6%, respectively. CONCLUSION: Application of the expanded Baveno-VI criteria can safely avoid screening gastroscopy in 43.6% of cACLD patients with an excellent ability to exclude HRV.


Asunto(s)
Pueblo Asiatico , Enfermedad Hepática en Estado Terminal/diagnóstico por imagen , Enfermedad Hepática en Estado Terminal/etnología , Gastroscopía/normas , Tamizaje Masivo/normas , Anciano , Estudios de Cohortes , Enfermedad Hepática en Estado Terminal/cirugía , Femenino , Gastroscopía/métodos , Hepatitis B Crónica/diagnóstico por imagen , Hepatitis B Crónica/etnología , Hepatitis B Crónica/cirugía , Humanos , Masculino , Tamizaje Masivo/métodos , Persona de Mediana Edad , Reproducibilidad de los Resultados , Estudios Retrospectivos
3.
Clin Transplant ; 33(11): e13714, 2019 11.
Artículo en Inglés | MEDLINE | ID: mdl-31532023

RESUMEN

Ample evidence suggests continued racial disparities once listed for liver transplantation, though few studies examine disparities in the selection process for listing. The objective of this study, via retrospective chart review, was to determine whether listing for liver transplantation was influenced by socioeconomic status and race/ethnicity. We identified 1968 patients with end-stage liver disease who underwent evaluation at a large, Midwestern center from January 1, 2004 through December 31, 2012 (72.9% white, 19.6% black, and 7.5% other). Over half (54.6%) of evaluated patients were listed; the three most common reasons for not listing were medical contraindications (11.9%), patient expired during evaluation (7.0%), and psychosocial contraindications (5.9%). In multivariable logistic regressions (listed vs not listed), across the three racial categories, the odds of being listed were lower for alcohol-induced hepatitis (±hepatitis C), unmarried, more than one insurance, inadequate insurance, and lower annual household income quartile. Similar factors predicted time to transplant listing, including being identified as black race. Black race, even when adjusting for the above mentioned medical and socioeconomic factors, was associated with 26% lower odds of being listed and a longer time to listing decision compared to all other patients.


Asunto(s)
Negro o Afroamericano/estadística & datos numéricos , Enfermedad Hepática en Estado Terminal/etnología , Disparidades en Atención de Salud , Hispánicos o Latinos/estadística & datos numéricos , Trasplante de Hígado/estadística & datos numéricos , Selección de Paciente , Población Blanca/estadística & datos numéricos , Enfermedad Hepática en Estado Terminal/cirugía , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Retrospectivos , Factores Socioeconómicos
4.
Transplantation ; 103(8): 1663-1674, 2019 08.
Artículo en Inglés | MEDLINE | ID: mdl-30720678

RESUMEN

BACKGROUND: Since the Model for End-stage Liver Disease (MELD) allocation system was implemented, the proportion of simultaneous liver-kidney transplantation (SLKT) has increased significantly. However, whether racial/ethnic disparities exist in access to SLKT and post-SLKT survival remains understudied. METHODS: A retrospective cohort of patients aged ≥18 years with renal dysfunction on the liver transplant (LT) waiting list was obtained from Organ Procurement and Transplantation Network. Renal dysfunction was defined as estimated glomerular filtration rate <60 mL/min/1.73 m at listing for LT. Multilevel time-to-competing-events regression adjusting for center effect was used to examine the likelihood of receiving SLKT. Inverse probability of treatment weighted survival analyses were used to analyze posttransplant mortality outcomes. RESULTS: For patients with renal dysfunction at listing for LT, not listed for simultaneous kidney transplant, non-Hispanic black (NHB) and Hispanic patients were more likely to receive SLKT than non-Hispanic white (NHW) patients (NHB: multivariable-adjusted hazard ratio [aHR] 2.57; 95% confidence interval [CI], 1.42-4.65; Hispanic: aHR, 2.03; 95% CI, 1.14-3.60). For post-SLKT outcomes, compared to NHW patients, NHB patients had a lower mortality risk before 24 months (aHR, 0.80; 95% CI, 0.65-0.97) but had a higher mortality risk (aHR, 2.00; 95% CI, 1.59-2.55) afterward; in contrast, Hispanic patients had a lower overall mortality risk than NHW patients (aHR, 0.61; 95% CI, 0.51-0.74). CONCLUSIONS: In the MELD era, racial/ethnic differences exist in access and survival of SLKT for patients with renal dysfunction at listing for LT. Future studies are warranted to examine whether these differences remain in the post-SLK allocation policy era.


Asunto(s)
Enfermedad Hepática en Estado Terminal/etnología , Etnicidad , Fallo Renal Crónico/etnología , Trasplante de Riñón , Grupos Raciales , Enfermedad Hepática en Estado Terminal/cirugía , Femenino , Estudios de Seguimiento , Supervivencia de Injerto , Humanos , Fallo Renal Crónico/cirugía , Trasplante de Hígado , Masculino , Persona de Mediana Edad , Morbilidad/tendencias , Pronóstico , Estudios Retrospectivos , Tasa de Supervivencia/tendencias , Estados Unidos/epidemiología
5.
Clin Gastroenterol Hepatol ; 17(8): 1607-1615.e2, 2019 07.
Artículo en Inglés | MEDLINE | ID: mdl-30391436

RESUMEN

BACKGROUND & AIMS: Little is known about trends in mortality among Hispanic subpopulations and etiologies of chronic liver disease (CLD). We investigated trends in mortality of CLD among the 3 largest Hispanic subgroups based on origin (Mexicans, Puerto Ricans, and Cubans) in the United States (US) from 2007 to 2016. METHODS: We collected data from the US Census and national mortality database, calculated age-standardized mortalities for CLD among Hispanic subgroups, and compared these with non-Hispanic whites. We determined mortality rate patterns by joinpoint analysis with estimates of annual percentage change. RESULTS: Hispanics were relatively younger with a lower likelihood of high school education than non-Hispanic whites at time of death. Puerto Ricans had the highest rates of age-standardized hepatitis C virus-related mortality in 2016, followed by non-Hispanic whites, Mexicans, and Cubans. Age-standardized mortality rates associated with hepatitis B virus infection decreased steadily among all subjects. Age-standardized mortality rates from alcoholic liver disease and nonalcoholic fatty liver disease among non-Hispanic whites and all Hispanics increased and accelerated. Mexicans had the highest rates of age-standardized alcoholic liver disease-related mortality, followed by non-Hispanic whites, Puerto Ricans, and Cubans. Cirrhosis- and hepatocellular carcinoma-related mortality rates increased steadily from 2007 to 2016, with the highest among Puerto Ricans and non-Hispanic whites and Mexicans, and lowest in Cubans. CONCLUSIONS: We found high levels of heterogeneity in CLD-related mortality patterns among the 3 largest Hispanic subgroups. Therefore, combining Hispanics as an aggregate group obscures potentially meaningful heterogeneity in etiology-specific CLD-related mortality rates among Hispanic subgroups.


Asunto(s)
Enfermedad Hepática en Estado Terminal/etnología , Hispánicos o Latinos , Sistema de Registros , Adulto , Causas de Muerte/tendencias , Enfermedad Crónica , Enfermedad Hepática en Estado Terminal/etiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Tasa de Supervivencia/tendencias , Estados Unidos/epidemiología , Adulto Joven
6.
Transplantation ; 103(7): 1425-1432, 2019 07.
Artículo en Inglés | MEDLINE | ID: mdl-30418427

RESUMEN

BACKGROUND: Despite the increasing prevalence of end-stage liver disease in older adults, there is no consensus to determine suitability for liver transplantation (LT) in the elderly. Disparities in LT access exist, with a disproportionately lower percentage of African Americans (AAs) receiving LT. Understanding waitlist outcomes in older adults, specifically AAs, will identify opportunities to improve LT access for this vulnerable population. METHODS: All adult, liver-only white and AA LT waitlist candidates (January 1, 2003 to October 1, 2015) were identified in the Scientific Registry of Transplant Recipients. Age and race categories were defined: younger white (age <60 years), younger AA, older white (age, ≥60 years), and older AA. Outcomes were delisting, transplantation, and mortality and were modeled using Fine and Gray competing risks. RESULTS: Among 101 805 candidates, 58.4% underwent transplantation, 14.7% died while listed, and 21.4% were delisted. Among those delisted, 36.1% died, whereas 7.4% were subsequently relisted. Both older AAs and older whites were more likely than younger whites to be delisted and to die after delisting. Older whites had higher incidence of waitlist mortality than younger whites (subdistribution hazard ratio, 1.07; 95% confidence interval, 1.01-1.13). All AAs and older whites had decreased incidence of LT, compared with younger whites. CONCLUSIONS: Both older age and AA race were associated with decreased cumulative incidence of transplantation. Independent of race, older candidates had increased incidences of delisting and mortality after delisting than younger whites. Our findings support the need for interventions to ensure medical suitability for LT among older adults and to address disparities in LT access for AAs.


Asunto(s)
Negro o Afroamericano , Enfermedad Hepática en Estado Terminal/etnología , Enfermedad Hepática en Estado Terminal/cirugía , Accesibilidad a los Servicios de Salud , Disparidades en Atención de Salud , Trasplante de Hígado , Listas de Espera , Población Blanca , Factores de Edad , Bases de Datos Factuales , Enfermedad Hepática en Estado Terminal/diagnóstico , Enfermedad Hepática en Estado Terminal/mortalidad , Femenino , Humanos , Incidencia , Trasplante de Hígado/efectos adversos , Trasplante de Hígado/mortalidad , Masculino , Persona de Mediana Edad , Prevalencia , Sistema de Registros , Estudios Retrospectivos , Medición de Riesgo , Factores de Riesgo , Factores de Tiempo , Resultado del Tratamiento , Estados Unidos/epidemiología , Listas de Espera/mortalidad
7.
HPB (Oxford) ; 19(9): 793-798, 2017 09.
Artículo en Inglés | MEDLINE | ID: mdl-28647164

RESUMEN

BACKGROUND: Racial disparity in access to liver transplantation among African Americans (AA) compared to Caucasians (CA) has been well described. The aim of this investigation was to examine the presentation of AA liver transplant recipients in a socioeconomically challenged region. METHODS: 680 adult liver transplant candidates and 233 resultant recipients between 2007 and 2015 were analyzed using univariate and multivariate analyses to evaluate factors significant for transplantation. RESULTS: Percentages of wait list patients transplanted were similar between CA and AA (34.9% vs. 32.2%, p = 0.5205). AA were younger (50.4 ± 1.8 vs. 56.3 ± 0.7 yrs, p = 0.0003) with higher average MELD scores (22.9 ± 1.6 vs. 19.4 ± 0.7, p = 0.0230). Overall patient mortality was similar (AA 22.7% vs. CA 26.3%, p = 0.5931). A multiple linear regression showed that male gender was strongly associated with transplantation. CONCLUSIONS: Equal access to liver transplantation remains challenging for racial minorities. At our institution, AA were accepted and transplanted at an equivalent rate as CA despite a higher AA population, HCV rate and diagnosed HCC. AA were younger and sicker at the time of transplant, but overall had similar outcomes compared to CA. Our study highlights the need for studies to delineate the underpinnings of disparity in transplantation access.


Asunto(s)
Negro o Afroamericano , Enfermedad Hepática en Estado Terminal/cirugía , Accesibilidad a los Servicios de Salud , Disparidades en Atención de Salud/etnología , Trasplante de Hígado/métodos , Evaluación de Procesos, Atención de Salud , Población Blanca , Factores de Edad , Enfermedad Hepática en Estado Terminal/diagnóstico , Enfermedad Hepática en Estado Terminal/etnología , Enfermedad Hepática en Estado Terminal/mortalidad , Femenino , Supervivencia de Injerto , Humanos , Estimación de Kaplan-Meier , Modelos Lineales , Trasplante de Hígado/efectos adversos , Trasplante de Hígado/mortalidad , Masculino , Persona de Mediana Edad , Análisis Multivariante , Nueva Orleans/epidemiología , Modelos de Riesgos Proporcionales , Estudios Retrospectivos , Factores de Riesgo , Índice de Severidad de la Enfermedad , Factores Sexuales , Factores de Tiempo , Resultado del Tratamiento , Listas de Espera
8.
Int J Equity Health ; 16(1): 55, 2017 03 24.
Artículo en Inglés | MEDLINE | ID: mdl-28340592

RESUMEN

BACKGROUND: The Share 35 policy was instituted in June 2013 by the United Network for Organ Sharing (UNOS) in order to reduce death on liver transplant waiting list. The effect of this policy on racial and ethnic disparities in access to liver transplantation has not been examined. METHODS: A total of 14,585 adult patients registered for liver transplantation between 2012 and 2015 were identified from UNOS database. Logistic and proportional hazards models were used to model the effects of race and ethnicity on access to liver transplantation. Stratification on pre- and post-Share 35 periods was performed to compare the first 18 months of Share 35 policy to an equivalent time period before. RESULTS: Comparison of the pre- and post-Share 35 periods showed significantly decreased time on waiting list and increased numbers of minorities having access to liver transplantation. Hispanic recipients still experienced significantly longer waiting time (HR: 0.69, 95% CI: 0.53-0.88) before they received liver transplantation after Share 35 policy took effect. CONCLUSION: The Share 35 policy did not lead to improved access to liver transplantation among minorities but eliminated the previously observed racial and ethnic disparities in transplant rates as well as shortened the waiting time.


Asunto(s)
Enfermedad Hepática en Estado Terminal/etnología , Etnicidad , Política de Salud , Accesibilidad a los Servicios de Salud , Disparidades en Atención de Salud , Trasplante de Hígado , Grupos Raciales , Anciano , Conducta Cooperativa , Enfermedad Hepática en Estado Terminal/cirugía , Femenino , Hispánicos o Latinos , Humanos , Hígado , Modelos Logísticos , Masculino , Persona de Mediana Edad , Grupos Minoritarios , Obtención de Tejidos y Órganos , Estados Unidos , Listas de Espera
9.
Transplantation ; 100(6): 1161-4, 2016 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-27203583

RESUMEN

We reviewed the history, volume, outcomes, uniqueness, and challenges of living donor liver transplantation (LDLT) in Latin America. We used the data from the Latin American and Caribbean Transplant Society, local transplant societies, and opinions from local transplant experts. There are more than 160 active liver transplant teams in Latin America, but only 30 centers have used LDLT in the past 2 years. In 2014, 226 LDLTs were done in the region (8.5% of liver transplant activities). Living donor liver transplantation is mainly restricted to pediatric patients. Adult-to-adult LDLT activities decreased after the implementation of the model for end-stage liver disease score and a concomitant increase on the rate of deceased donors per million population. Posttransplant outcome analysis is not mandatory, transparent or regulated in most countries. More experienced teams have outcomes comparable to international expert centers, but donor and recipient morbidity might be underreported. Latin America lags behind in terms of the number of adult LDLT and the rate of living donor utilization in comparison with other continents with similar donation rates. Local alliances and collaborations with major transplant centers in the developed world will contribute to the development of LDLT in Latin America.


Asunto(s)
Enfermedad Hepática en Estado Terminal/cirugía , Trasplante de Hígado/métodos , Donadores Vivos , Brasil , Enfermedad Hepática en Estado Terminal/etnología , Humanos , Relaciones Interinstitucionales , Cooperación Internacional , América Latina , Índice de Severidad de la Enfermedad , Obtención de Tejidos y Órganos , Resultado del Tratamiento
10.
PLoS One ; 11(5): e0155271, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27196564

RESUMEN

OBJECTIVE: The Roma minority represents the largest ethnic group in Central and South-East European countries. Data regarding the mortality in Roma hemodialysis subjects are limited. We evaluated the 3 year mortality of ESRD Roma patients treated with hemodialysis (HD). STUDY DESIGN AND SETTING: Our prospective cohort study included 600 ESRD patients on HD therapy recruited from 7 HD centers, from the main geographical regions of Romania. The median age of the patients was 56 (19) years, 332 (55.3%) being males, 51 (8.5%) having Roma ethnicity. RESULTS: Roma ESRD patients initiate dialysis at a younger age, 47.8 years vs. 52.3 years (P = 0.017), present higher serum albumin (P = 0.013) and higher serum phosphate levels (P = 0.021). In the Roma group, the overall 3 year mortality was higher when compared to Caucasians (33.3% vs. 24.8%). The multivariate survival analysis revealed that being of Roma ethnicity is an independent risk factor for mortality (HR = 1.74; 95% CI = 1.04-2.91; P = 0.035). CONCLUSIONS: Roma patients with ESRD initiate HD therapy at a younger age as compared to Caucasians. They have a higher 3 year mortality rate and are dying at a younger age. Roma ethnicity represents an independent risk factor for mortality in our cohort.


Asunto(s)
Enfermedad Hepática en Estado Terminal/etnología , Enfermedad Hepática en Estado Terminal/terapia , Diálisis Renal/métodos , Adulto , Anciano , Enfermedad Crónica , Enfermedad Hepática en Estado Terminal/mortalidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Análisis Multivariante , Fosfatos/sangre , Prevalencia , Modelos de Riesgos Proporcionales , Estudios Prospectivos , Factores de Riesgo , Romaní , Rumanía , Albúmina Sérica/química , Factores de Tiempo , Resultado del Tratamiento
12.
Transplantation ; 99(11): 2337-40, 2015 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-26177085

RESUMEN

BACKGROUND: The model for end-stage liver disease (MELD) is based on objective variables, including serum creatinine (SCr). This study assesses the influence of skin color on MELD scores calculated using SCr or corrected creatinine (CrC) in female candidates for liver transplantation (LTx). METHODS: White and black women were eligible. The glomerular filtration rate (GFR) was calculated by means of the Modification of Diet in Renal Disease formula, using SCr. The GFR was then used for reverse calculation of CrC considering each female as male. The MELD scores were calculated using both creatinine values and compared between white and black candidates. RESULTS: SCr-based and CrC-based scores were similar between groups. Calculated GFR was significantly higher in black women than in white women (P < 0.001). Use of CrC yielded 1-point, 2-point, and 3-point increases in the MELD score in 20.2%, 25.7%, and 17.5% of white patients, respectively. None of the black patients had a MELD score increase greater than 1 point. The CrC-based MELD calculation would benefit 63.4% of white females and only 26.1% of black females. CONCLUSIONS: Use of CrC for MELD calculation would prioritize white females for liver allocation, but does not seem feasible, as it would not ensure equitable allocation across different ethnicities.


Asunto(s)
Población Negra , Creatinina/sangre , Enfermedad Hepática en Estado Terminal/diagnóstico , Enfermedad Hepática en Estado Terminal/etnología , Trasplante de Hígado , Adulto , Biomarcadores/sangre , Brasil/epidemiología , Enfermedad Hepática en Estado Terminal/sangre , Enfermedad Hepática en Estado Terminal/fisiopatología , Enfermedad Hepática en Estado Terminal/cirugía , Femenino , Tasa de Filtración Glomerular , Disparidades en Atención de Salud/etnología , Humanos , Riñón/fisiopatología , Persona de Mediana Edad , Modelos Biológicos , Selección de Paciente , Valor Predictivo de las Pruebas , Índice de Severidad de la Enfermedad , Factores Sexuales , Pigmentación de la Piel , Listas de Espera , Población Blanca
13.
Transplantation ; 99(4): 860-6, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25211517

RESUMEN

BACKGROUND: The impact of ethnicity on outcomes after orthotopic liver transplantation (OLT) is unclear. The British Indo-Asian population has a high incidence of liver disease but its contribution to the national deceased donor pool is small. We evaluated access to and outcomes of OLT in Indo-Asians. METHODS: We compared 182 Indo-Asians with white patients undergoing OLT. Matching criteria were transplantation year, liver disease, age, sex. Donor and recipient characteristics, postoperative outcomes, including patient and graft survival, OLT era (early, 1987-2001; late, 2002-2011) were compared. Survival was also analyzed by underlying disease-acute liver failure (ALF) and chronic liver failure. RESULTS: Indo-Asians had higher diabetes incidence. There were no differences in waiting time for transplantation, despite smaller body size and more uncommon blood groups (B, AB) among Indo-Asians. In the early era, patient survival for Indo-Asians with ALF was worse when compared to whites. In the late era, graft and patient survival at 1, 2, and 5 years were similar between groups. CONCLUSION: This study demonstrates that Indo-Asian patients have equal access to OLT and comparable outcomes to whites in the United Kingdom. Survival has improved among Indo-Asian patients; this may be attributable to careful patient selection in case of ALF, though improvement of patient management may have contributed.


Asunto(s)
Pueblo Asiatico , Enfermedad Hepática en Estado Terminal/etnología , Enfermedad Hepática en Estado Terminal/cirugía , Fallo Hepático Agudo/etnología , Fallo Hepático Agudo/cirugía , Trasplante de Hígado , Adolescente , Adulto , Anciano , Distribución de Chi-Cuadrado , Bases de Datos Factuales , Enfermedad Hepática en Estado Terminal/diagnóstico , Enfermedad Hepática en Estado Terminal/mortalidad , Inglaterra/epidemiología , Femenino , Supervivencia de Injerto , Accesibilidad a los Servicios de Salud , Disparidades en Atención de Salud/etnología , Humanos , Incidencia , India/etnología , Estimación de Kaplan-Meier , Fallo Hepático Agudo/diagnóstico , Fallo Hepático Agudo/mortalidad , Trasplante de Hígado/efectos adversos , Trasplante de Hígado/mortalidad , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Modelos de Riesgos Proporcionales , Estudios Retrospectivos , Factores de Riesgo , Factores de Tiempo , Resultado del Tratamiento , Listas de Espera , Población Blanca , Adulto Joven
14.
Transplantation ; 98(9): 994-9, 2014 Nov 15.
Artículo en Inglés | MEDLINE | ID: mdl-25099704

RESUMEN

INTRODUCTION: The feasibility of telaprevir-based triple therapy for recurrent hepatitis C after liver transplantation (LT) has not been evaluated in Asian patients. METHODS: Eleven Japanese patients received reduced-dose telaprevir (1500 mg) and adjusted-dose cyclosporine after LT. Six patients were nonresponders and three were transient responders to dual therapy. RESULTS: Rapid viral response, early viral response, end of treatment response, and sustained viral response were achieved in 27.3%, 90.9%, 90.9%, and 81.8% of patients, respectively. One patient had viral breakthrough at week 8 with a T54A mutation in NS3. Deep sequence analysis showed that the T54A mutation reverted to wild-type after stopping telaprevir administration. Seven patients developed severe anemia, and six received blood transfusions (4-20 U). Their hemoglobin and estimated glomerular filtration rate remained significantly lower than pretreatment values at 36 weeks after treatment. Four patients developed plasma cell hepatitis after completing telaprevir treatment, and it was treated by increasing the immunosuppressants. Although the cyclosporine level/dose ratio was 2.7 times higher at week 4 than before treatment, it was 0.7 times lower at week 36. CONCLUSIONS: Reduced-dosed telaprevir-based triple antiviral therapy achieved a high viral clearance rate in Japanese patients after LT. Major adverse events included severe anemia, renal dysfunction, and plasma cell hepatitis.


Asunto(s)
Antivirales/administración & dosificación , Enfermedad Hepática en Estado Terminal/cirugía , Hepatitis C Crónica/tratamiento farmacológico , Trasplante de Hígado , Oligopéptidos/administración & dosificación , Anciano , Anemia/sangre , Anemia/complicaciones , Estudios de Cohortes , Ciclosporina/administración & dosificación , Enfermedad Hepática en Estado Terminal/etnología , Femenino , Tasa de Filtración Glomerular , Haplotipos , Hemoglobinas/análisis , Hepacivirus/genética , Hepatitis C Crónica/etnología , Secuenciación de Nucleótidos de Alto Rendimiento , Humanos , Japón , Trasplante de Hígado/efectos adversos , Donadores Vivos , Masculino , Persona de Mediana Edad , Mutación , ARN Viral/sangre , Recurrencia , Resultado del Tratamiento
15.
World J Gastroenterol ; 20(26): 8681-90, 2014 Jul 14.
Artículo en Inglés | MEDLINE | ID: mdl-25024626

RESUMEN

AIM: To investigate the expression of P450 enzyme genes by using end-stage liver disease samples and trimmed normal Chinese donor livers. METHODS: The end-stage liver disease samples [n = 93, including hepatocellular carcinoma (HCC), peri-HCC tissue, hepatitis B virus cirrhosis, alcoholic cirrhosis, and severe cirrhosis] and trimmed normal Chinese donor livers (n = 35) from The Institute of Organ Transplantation in Beijing, China. Total RNA was extracted, purified, and subjected to real-time RT-PCR analysis. RESULTS: For cytochrome P450 enzymes 1 (CYP1) family, the expression of CYP1A2 was decreased 90% in HCC, 80% in alcoholic cirrhosis, and 65% in severe cirrhosis. For CYP2 family, the expression of CAR was decreased 50% in HCC, but increased 50% in peri-HCC tissues. Similar decreases (about 50%) of CYP2B6, CYP2C9, CYP2C19, CYP2D6 and CYP2E1 were observed in HCC, as compared to peri-HCC tissues and normal livers. CYP2C19 were decreased in all end-stage liver diseases and CYP2E1 also decreased in alcoholic cirrhosis and severe cirrhosis. For CYP3 family, the expression of PXR was decreased 60% in HCC, together with decreases in CYP3A4, CYP3A5, and CYP3A7. In contrast, the expression of CYP3A7 was slightly increased in HBV cirrhosis. The expression of CYP4A11 was decreased 85% in HCC, 7% in alcoholic cirrhosis and severe liver cirrhosis, along with decreases in PPARα. The 93 end-stage livers had much higher inter-individual variations in gene expression than 35 normal livers. CONCLUSION: The expression of CYP enzyme genes and corresponding nuclear receptors was generally decreased in end-stage liver diseases, and significant differences in gene expression were evident between peri-HCC and HCC.


Asunto(s)
Pueblo Asiatico , Sistema Enzimático del Citocromo P-450/análisis , Enfermedad Hepática en Estado Terminal/enzimología , Hígado/enzimología , Receptores Citoplasmáticos y Nucleares/análisis , Pueblo Asiatico/genética , Carcinoma Hepatocelular/enzimología , Carcinoma Hepatocelular/etnología , Carcinoma Hepatocelular/virología , Estudios de Casos y Controles , China/epidemiología , Sistema Enzimático del Citocromo P-450/genética , Enfermedad Hepática en Estado Terminal/diagnóstico , Enfermedad Hepática en Estado Terminal/etnología , Enfermedad Hepática en Estado Terminal/genética , Enfermedad Hepática en Estado Terminal/virología , Hepatitis B/enzimología , Hepatitis B/etnología , Hepatitis B/virología , Humanos , Isoenzimas , Cirrosis Hepática/enzimología , Cirrosis Hepática/etnología , Cirrosis Hepática/virología , Cirrosis Hepática Alcohólica/enzimología , Cirrosis Hepática Alcohólica/etnología , Neoplasias Hepáticas/enzimología , Neoplasias Hepáticas/etnología , Neoplasias Hepáticas/virología , ARN Mensajero/análisis , Receptores Citoplasmáticos y Nucleares/genética
16.
Liver Transpl ; 20(7): 798-806, 2014 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-24753233

RESUMEN

An increased liver disease burden has been reported for Aboriginal and Torres Strait Islanders (ATSIs) in Australia; however, few proceed to liver transplantation (LT). We aimed to compare overall survival and graft survival after LT between ATSI and non-ATSI populations, assess the factors influencing survival within ATSIs, and finally examine the proportion of ATSIs undergoing LT. This study was a retrospective review of the Australia and New Zealand Liver Transplant Registry from 1985 to 2012 and examined consecutive primary LT performed in Australia. Overall and graft survival were compared between ATSI and non-ATSI groups. The Accessibility/Remoteness Index of Australia (ARIA) was used to calculate the remoteness of individuals. There were 3493 primary LT performed, and 45 patients (1.3%; 14 children and 31 adults) were ATSIs. The median (range) ages of the ATSI children and adults at the time of LT were 9.6 (0.2-15.3) years and 44.5 (19.5-65.5) years, respectively. There were 10 deaths in the ATSI cohort. The median (range) overall survival was similar for ATSI and non-ATSI children [6.5 (0.1-23.5) years versus 9.0 (0-28.2) years, P = 0.9] and adults [7.1 (0.1-15.7) years versus 6.3 0-26.7) years, P = 0.8]. The cumulative graft survival was similar for ATSI and non-ATSI children (P = 0.8) and adults (P = 0.8). High ARIA scores [hazard ratio (HR) = 1.2, 95% confidence interval (CI) = 1.01-1.53, P = 0.03] in children and blood group O (HR = 3.8, 95% CI = 1.1-12.7, P = 0.03) in adults predicted worse outcomes for ATSIs. Although ATSIs accounted for 4.7% and 1.8% of the Australian pediatric and adult populations, respectively, they represented only 2.2% of pediatric LT recipients (χ(2) = 8.2, P = 0.004) and 1.1% of adult LT recipients (χ(2) = 7.9, P = 0.005). In conclusion, overall survival and graft survival after LT are comparable in ATSIs and non-ATSIs. There is a trend toward increased death/retransplantation in ATSIs from remote areas. ATSI children and adults appear to be underrepresented in the Australian LT population.


Asunto(s)
Enfermedad Hepática en Estado Terminal/mortalidad , Enfermedad Hepática en Estado Terminal/cirugía , Trasplante de Hígado , Adolescente , Adulto , Anciano , Australia , Niño , Preescolar , Enfermedad Hepática en Estado Terminal/etnología , Femenino , Humanos , Lactante , Masculino , Persona de Mediana Edad , Nativos de Hawái y Otras Islas del Pacífico , Modelos de Riesgos Proporcionales , Sistema de Registros , Reoperación , Estudios Retrospectivos , Adulto Joven
17.
Transplantation ; 98(1): 94-9, 2014 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-24646768

RESUMEN

BACKGROUND: We sought to compare liver transplant waiting list access by demographics and geography relative to the pool of potential liver transplant candidates across the United States using a novel metric of access to care, termed a liver wait-listing ratio (LWR). METHODS: We calculated LWRs from national liver transplant registration data and liver mortality data from the Scientific Registry of Transplant Recipients and the National Center for Healthcare Statistics from 1999 to 2006 to identify variation by diagnosis, demographics, geography, and era. RESULTS: Among patients with ALF and CLF, African Americans had significantly lower access to the waiting list compared with whites (acute: 0.201 versus 0.280; pre-MELD 0.201 versus 0.290; MELD era: 0.201 versus 0.274; all, P<0.0001) (chronic: 0.084 versus 0.163; pre-MELD 0.085 versus 0.179; MELD 0.084 versus 0.154; all, P<0.0001). Hispanics and whites had similar LWR in both eras (both P>0.05). In the MELD era, female subjects had greater access to the waiting list compared with male subjects (acute: 0.428 versus 0.154; chronic: 0.158 versus 0.140; all, P<0.0001). LWRs varied by three-fold by state (pre-MELD acute: 0.122-0.418, chronic: 0.092-0.247; MELD acute: 0.121-0.428, chronic: 0.092-0.243). CONCLUSIONS: The marked inequity in early access to liver transplantation underscores the need for local and national policy initiatives to affect this disparity.


Asunto(s)
Enfermedad Hepática en Estado Terminal/cirugía , Accesibilidad a los Servicios de Salud/tendencias , Disparidades en Atención de Salud/tendencias , Fallo Hepático Agudo/cirugía , Trasplante de Hígado/tendencias , Obtención de Tejidos y Órganos/tendencias , Listas de Espera , Adulto , Negro o Afroamericano , Anciano , Enfermedad Hepática en Estado Terminal/diagnóstico , Enfermedad Hepática en Estado Terminal/etnología , Enfermedad Hepática en Estado Terminal/mortalidad , Femenino , Asignación de Recursos para la Atención de Salud/tendencias , Necesidades y Demandas de Servicios de Salud/tendencias , Disparidades en Atención de Salud/etnología , Hispánicos o Latinos , Humanos , Fallo Hepático Agudo/diagnóstico , Fallo Hepático Agudo/etnología , Fallo Hepático Agudo/mortalidad , Masculino , Persona de Mediana Edad , Sistema de Registros , Características de la Residencia , Factores de Riesgo , Factores Sexuales , Factores de Tiempo , Estados Unidos/epidemiología , Listas de Espera/mortalidad , Población Blanca , Adulto Joven
18.
Clin Transpl ; : 13-22, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-25095488

RESUMEN

The donor risk index (DRI) for orthotopic liver transplantation has the ability to predict graft survival; however, it also has limitations worth considering. These limitations include: 1) the fact that it was created based on data collected prior to the development of the Model for End-Stage Liver Disease (MELD) system; and, 2) there are reports that the DRI predicts survival differently in hepatitis C virus (HCV) positive recipients and HCV negative recipients. This study of the United Network for Organ Sharing registry data analyzed reputed donor factors using the post-MELD data and evaluated them further in HCV positive and HCV negative recipients with hepatic cirrhosis to develop a modified DRI (mDRI). We found that HCV negative cirrhotic recipients have generally higher tolerance against inferior qualities of donors than HCV positive cirrhotic patients. In addition, the results revealed the post-MELD prognostic factors that should be considered in the donor procurement processes. The group of "all recipients" and the subset of HCV positive cirrhotic recipients showed a similar set of donor risk factors found to significantly decrease graft survival. For these two groups, an mDRI included death by cerebrovascular accident or stroke, donor age >or=65 years, and donor history of diabetes. Using the mDRI for "all recipients", the 1-year graft survival decreased by 3-4% per additional donor factor present. In HCV positive cirrhotic recipients, the 1-year graft survival decreased by 2-6% per additional donor factor present. In addition, we developed an mDRI for HCV negative cirrhotic recipients comprised of only two donor factors, cytomegalovirus positive donor serostatus and donor age >or=65 years, resulting in a 1-year graft survival of 87.7% for no factors and 83.2% for 2 donor factors. Overall, our findings suggest that by having more refined, thus fewer, donor risk factors, the newly proposed DRI could potentially expand the donor pool by broadening the donor acceptance range currently set by the conventional scoring system.


Asunto(s)
Enfermedad Hepática en Estado Terminal/mortalidad , Trasplante de Hígado/mortalidad , Sistema de Registros/estadística & datos numéricos , Donantes de Tejidos/estadística & datos numéricos , Adulto , Anciano , Enfermedad Hepática en Estado Terminal/etnología , Enfermedad Hepática en Estado Terminal/cirugía , Femenino , Supervivencia de Injerto , Humanos , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Mortalidad/tendencias , Modelos de Riesgos Proporcionales , Grupos Raciales/estadística & datos numéricos , Estudios Retrospectivos , Factores de Riesgo , Estados Unidos/epidemiología
19.
Hepatobiliary Pancreat Dis Int ; 11(3): 262-6, 2012 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-22672819

RESUMEN

BACKGROUND: Few studies have been performed to assess health-related quality of life (HRQOL) in liver transplantation (LT) patients in the mainland of China. This study aimed to investigate the HRQOL of post-LT patients in a single center. METHODS: HRQOL was evaluated by the SF-36 (Chinese version) questionnaire in 60 patients (LT group) who had received LT for benign end-stage liver disease (BELD). Fifty-five patients with BELD (BELD group) and 50 healthy volunteers from the general population (GP group) were also evaluated, and the results were compared among the three groups. RESULTS: There was a significant difference among the three groups in terms of the scores of eight domains in the SF-36 (P<0.01). Patients in the BELD group had lower scores in each domain of the SF-36 in comparison with those in the GP group (P<0.025). The LT group had mental health scores equivalent to those of the BELD group (P>0.025), but higher scores for the remaining seven domains (P<0.025). Compared with the GP group, the LT group scored equivalently for role physical, body pain, vitality, social function and role emotion (P>0.025), but had lower scores for the remaining three domains (P<0.025). Lower family income was found to be associated with reduced physical function and mental health scores (P<0.05). Better education was associated with increased mental health scores (P<0.05). CONCLUSIONS: LT patients generally have a good HRQOL although some respects of their HRQOL remains to be improved. Lower family income and poor education are important factors relating to the poor HRQOL of LT patients.


Asunto(s)
Enfermedad Hepática en Estado Terminal/cirugía , Trasplante de Hígado/psicología , Salud Mental , Calidad de Vida , Adulto , Pueblo Asiatico , Distribución de Chi-Cuadrado , China , Escolaridad , Enfermedad Hepática en Estado Terminal/etnología , Enfermedad Hepática en Estado Terminal/psicología , Femenino , Humanos , Renta , Trasplante de Hígado/efectos adversos , Trasplante de Hígado/etnología , Masculino , Salud Mental/etnología , Persona de Mediana Edad , Análisis Multivariante , Análisis de Componente Principal , Modelos de Riesgos Proporcionales , Estudios Retrospectivos , Medición de Riesgo , Factores de Riesgo , Factores Socioeconómicos , Encuestas y Cuestionarios , Factores de Tiempo , Resultado del Tratamiento
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA