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1.
Liver Transpl ; 2024 May 23.
Artículo en Inglés | MEDLINE | ID: mdl-38775498

RESUMEN

Acute liver failure (ALF) is an acute liver dysfunction with coagulopathy and HE in a patient with no known liver disease. As ALF is rare and large clinical trials are lacking, the level of evidence regarding its management is low-moderate, favoring heterogeneous clinical practice. In this international multicenter survey study, we aimed to investigate the current practice and management of patients with ALF. An online survey targeting physicians who care for patients with ALF was developed by the International Liver Transplantation Society ALF Special-Interest Group. The survey focused on the management and liver transplantation (LT) practices of ALF. Survey questions were summarized overall and by geographic region. A total of 267 physicians completed the survey, with a survey response rate of 21.36%. Centers from all continents were represented. More than 90% of physicians specialized in either transplant hepatology/surgery or anesthesiology/critical care. Two hundred fifty-two (94.4%) respondents' institutions offered LT. A total of 76.8% of respondents' centers had a dedicated liver-intensive or transplant-intensive care unit ( p < 0.001). The median time to LT was within 48 hours in 12.7% of respondents' centers, 72 hours in 35.6%, 1 week in 37.6%, and more than 1 week in 9.6% ( p < 0.001). Deceased donor liver graft (49.6%) was the most common type of graft offered. For consideration of LT, 84.8% of physicians used King's College Criteria, and 41.6% used Clichy Criteria. Significant differences were observed between Asia, Europe, and North America for offering LT, number of LTs performed, volume of patients with ALF, admission to a dedicated intensive care unit, median time to LT, type of liver graft, monitoring HE and intracranial pressure, management of coagulopathy, and utilization of different criteria for LT. In our study, we observed significant geographic differences in the practice and management of ALF. As ALF is rare, multicenter studies are valuable for identifying global practice.

2.
Curr Opin Nephrol Hypertens ; 33(3): 354-360, 2024 05 01.
Artículo en Inglés | MEDLINE | ID: mdl-38345405

RESUMEN

PURPOSE OF REVIEW: Kidney dysfunction is challenging in liver transplant candidates to determine whether it is reversible or not. This review focuses on the pertinent data on how to best approach liver transplant candidates with kidney dysfunction in the current era after implementing the simultaneous liver kidney (SLK) allocation policy and safety net. RECENT FINDINGS: The implementation of the SLK policy inverted the steady rise in SLK transplants and improved the utilization of high-quality kidneys. Access to kidney transplantation following liver transplant alone (LTA) increased with favorable outcomes. Estimating GFR in liver transplant candidates remains challenging, and innovative methods are needed. SLK provided superior patient and graft survival compared to LTA only for patients with advanced CKD and dialysis at least 3 months. SLK can provide immunological protection against kidney rejection in highly sensitized candidates. Post-SLK transplant care is complex, with an increased risk of complications and hospitalization. SUMMARY: The SLK policy improved kidney access and utilization. Transplant centers are encouraged, under the safety net, to reserve SLK for liver transplant candidates with advanced CKD or dialysis at least 3 months while allowing lower thresholds for highly sensitized patients. Herein, we propose a practical approach to liver transplant candidates with kidney dysfunction.


Asunto(s)
Trasplante de Riñón , Insuficiencia Renal Crónica , Insuficiencia Renal , Humanos , Trasplante de Riñón/métodos , Diálisis Renal/efectos adversos , Factores de Riesgo , Riñón , Supervivencia de Injerto , Hígado , Derivación y Consulta , Insuficiencia Renal Crónica/diagnóstico , Insuficiencia Renal Crónica/cirugía
3.
Transpl Infect Dis ; 26(4): e14286, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38698665

RESUMEN

BACKGROUND: Solid organ transplant recipients are at an increased risk for anogenital Human Papillomavirus (HPV)-related disease, including anal high-grade squamous intraepithelial lesions (HSIL) and anal squamous cell cancer (ASCC). Guidelines for ASCC screening in transplant recipients are limited. Our aim was to understand current practice of ASCC screening in adult liver transplant (LT) candidates and recipients at transplant centers across the United States. METHODS: We surveyed medical directors of 113 LT centers across the United States which had publicly available contact information. The survey evaluated center perceptions on cancer and HPV disease risk in transplant populations, ASCC screening, barriers and facilitators for ASCC screening and HPV vaccination practices. RESULTS: We received 26/113 (23%) responses, of which 24 were complete and included in the analysis. Eleven of 24 (46%) centers reported screening for ASCC and 3/24 (12.5%) centers reported having formal guidelines. Centers who perform ASCC screening were more likely to perform transplants in people living with HIV and were more aware of the burden of HPV disease in transplant populations. All respondents believed that additional data on the impact of screening on ASCC incidence would support screening decisions. Increased access to specialists for screening/high-resolution anoscopy was also perceived as a facilitator. Only 7/24 (29%) centers regularly evaluated HPV vaccination status of their patients. CONCLUSION: This national survey of LT centers reveals non-standardized ASCC screening practices, and identified data, educational and resource needs to improve prevention of ASCC in this population.


Asunto(s)
Neoplasias del Ano , Detección Precoz del Cáncer , Trasplante de Hígado , Infecciones por Papillomavirus , Vacunas contra Papillomavirus , Humanos , Neoplasias del Ano/virología , Neoplasias del Ano/prevención & control , Infecciones por Papillomavirus/complicaciones , Infecciones por Papillomavirus/prevención & control , Estados Unidos/epidemiología , Trasplante de Hígado/efectos adversos , Detección Precoz del Cáncer/métodos , Encuestas y Cuestionarios , Vacunas contra Papillomavirus/administración & dosificación , Vacunas contra Papillomavirus/uso terapéutico , Femenino , Masculino , Tamizaje Masivo/métodos , Carcinoma de Células Escamosas/virología , Lesiones Intraepiteliales Escamosas/virología , Receptores de Trasplantes/estadística & datos numéricos
4.
Alcohol Alcohol ; 59(1)2024 Jan 11.
Artículo en Inglés | MEDLINE | ID: mdl-37873970

RESUMEN

Increased alcohol consumption during the coronavirus disease 2019 pandemic is projected to impact alcohol-related liver disease (ALD) morbidity and mortality. Inter-hospital escalation-of-care referral requests to our tertiary-care hepatology unit were analyzed from January 2020 through December 2022. Most requests to our center were for ALD with an increase in requests from intermediate care units, suggestive of higher acuity illness.


Asunto(s)
COVID-19 , Hepatopatías Alcohólicas , Humanos , Hepatopatías Alcohólicas/epidemiología , Hepatopatías Alcohólicas/terapia , Consumo de Bebidas Alcohólicas/epidemiología , Pandemias , COVID-19/epidemiología , Derivación y Consulta , Hospitales
5.
Clin Transplant ; 37(5): e14938, 2023 05.
Artículo en Inglés | MEDLINE | ID: mdl-36786505

RESUMEN

Neighborhood socioeconomic deprivation may have important implications on disparities in liver transplant (LT) evaluation. In this retrospective cohort study, we constructed a novel dataset by linking individual patient-level data with the highly granular Area Deprivation Index (ADI), which is advantageous over other neighborhood measures due to: specificity of Census Block-Group (versus Census Tract, Zip code), scoring, and robust variables. Our cohort included 1377 adults referred to our center for LT evaluation 8/1/2016-12/31/2019. Using modified Poisson regression, we tested for effect measure modification of the association between neighborhood socioeconomic status (nSES) and LT evaluation outcomes (listing, initiating evaluation, and death) by race and ethnicity. Compared to patients with high nSES, those with low nSES were at higher risk of not being listed (aRR = 1.14; 95%CI 1.05-1.22; p < .001), of not initiating evaluation post-referral (aRR = 1.20; 95%CI 1.01-1.42; p = .03) and of dying without initiating evaluation (aRR = 1.55; 95%CI 1.09-2.2; p = .01). While White patients with low nSES had similar rates of listing compared to White patients with high nSES (aRR = 1.06; 95%CI .96-1.17; p = .25), Underrepresented patients from neighborhoods with low nSES incurred 31% higher risk of not being listed compared to Underrepresented patients from neighborhoods with high nSES (aRR = 1.31; 95%CI 1.12-1.5; p < .001). Interventions addressing neighborhood deprivation may not only benefit patients with low nSES but may address racial and ethnic inequities.


Asunto(s)
Trasplante de Hígado , Adulto , Humanos , Estudios Retrospectivos , Clase Social , Etnicidad , Evaluación de Resultado en la Atención de Salud
6.
Liver Transpl ; 28(4): 670-677, 2022 04.
Artículo en Inglés | MEDLINE | ID: mdl-34753223

RESUMEN

To reduce waitlist mortality, living donor liver transplantation (LDLT) has increased over the past decade in the United States, but not at a rate sufficient to completely mitigate organ shortage. As a result, there are ongoing efforts to expand the living liver donor pool. Simultaneously, the prevalence of nonalcoholic fatty liver disease (NAFLD) in the general population has increased, which has significant implications on the pool of potential living liver donors. As such, a clinical assessment algorithm that exhaustively evaluates for NAFLD and fibrosis is critical to the safe expansion of LDLT. An ideal algorithm would employ safe and noninvasive methods, relying on liver biopsy only when necessary. While exclusion of NAFLD and fibrosis by noninvasive means is widely studied within the general population, there are no well-accepted guidelines for evaluation of living donors using these modalities. Here we review the current literature regarding noninvasive NALFD and fibrosis evaluation and propose a potential algorithm to apply these modalities for the selection of living liver donors.


Asunto(s)
Trasplante de Hígado , Enfermedad del Hígado Graso no Alcohólico , Algoritmos , Fibrosis , Humanos , Hígado/patología , Hígado/cirugía , Trasplante de Hígado/efectos adversos , Trasplante de Hígado/métodos , Donadores Vivos , Enfermedad del Hígado Graso no Alcohólico/diagnóstico , Enfermedad del Hígado Graso no Alcohólico/epidemiología , Enfermedad del Hígado Graso no Alcohólico/cirugía , Medición de Riesgo , Estados Unidos
7.
Liver Transpl ; 28(12): 1841-1856, 2022 12.
Artículo en Inglés | MEDLINE | ID: mdl-35726679

RESUMEN

Racial and ethnic disparities persist in access to the liver transplantation (LT) waiting list; however, there is limited knowledge about underlying system-level factors that may be responsible for these disparities. Given the complex nature of LT candidate evaluation, a human factors and systems engineering approach may provide insights. We recruited participants from the LT teams (coordinators, advanced practice providers, physicians, social workers, dieticians, pharmacists, leadership) at two major LT centers. From December 2020 to July 2021, we performed ethnographic observations (participant-patient appointments, committee meetings) and semistructured interviews (N = 54 interviews, 49 observation hours). Based on findings from this multicenter, multimethod qualitative study combined with the Systems Engineering Initiative for Patient Safety 2.0 (a human factors and systems engineering model for health care), we created a conceptual framework describing how transplant work system characteristics and other external factors may improve equity in the LT evaluation process. Participant perceptions about listing disparities described external factors (e.g., structural racism, ambiguous national guidelines, national quality metrics) that permeate the LT evaluation process. Mechanisms identified included minimal transplant team diversity, implicit bias, and interpersonal racism. A lack of resources was a common theme, such as social workers, transportation assistance, non-English-language materials, and time (e.g., more time for education for patients with health literacy concerns). Because of the minimal data collection or center feedback about disparities, participants felt uncomfortable with and unadaptable to unwanted outcomes, which perpetuate disparities. We proposed transplant center-level solutions (i.e., including but not limited to training of staff on health equity) to modifiable barriers in the clinical work system that could help patient navigation, reduce disparities, and improve access to care. Our findings call for an urgent need for transplant centers, national societies, and policy makers to focus efforts on improving equity (tailored, patient-centered resources) using the science of human factors and systems engineering.


Asunto(s)
Trasplante de Hígado , Humanos , Trasplante de Hígado/efectos adversos , Grupos Raciales , Etnicidad , Listas de Espera , Atención a la Salud , Disparidades en Atención de Salud
8.
J Vasc Interv Radiol ; 33(10): 1222-1229.e1, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-35777619

RESUMEN

PURPOSE: To evaluate differences in waitlist mortality and dropout in liver transplant candidates with hepatocellular carcinoma (HCC) who undergo radiofrequency (RF) ablation versus transarterial chemoembolization (TACE). MATERIAL AND METHODS: From 2004 to 2013, 11,824 patients with HCC in the Scientific Registry of Transplant Recipients who underwent RF ablation or TACE were included and followed until December 31, 2019, or 5 years, whichever came first, and were stratified by the Milan criteria. Competing risk and Cox regression analyses to compare waitlist mortality and dropout were performed using adjusted hazard ratios (asHRs, with RF ablation group as reference). Regression models were adjusted for age, race, sex, calculated Model for End-Stage Liver Disease score, tumor size, and number. RESULTS: There was no difference in waitlist mortality and dropout for patients outside the Milan criteria (n = 1,226) who underwent TACE (19.2%) or RF ablation (19.0%) (asHR, 0.91; 95% CI, 0.79-1.03). There was also no difference for patients inside the Milan criteria (n = 10,598) in waitlist mortality/dropout (TACE 13.4% vs RF ablation 12.9%) (asHR, 1.29; 95% CI, 0.79-2.09). A subgroup analysis within the Milan criteria demonstrated no difference between TACE and RF ablation treatments in patients with a single tumor of ≤3 cm (asHR, 0.92; 95% CI, 0.77-1.10), with a single tumor of >3 cm (asHR, 1.03; 95% CI, 0.79-1.34), or with >1 tumor (asHR, 0.89; 95% CI, 0.72-1.09). CONCLUSIONS: Using the national registry data, no difference was found in waitlist mortality and dropout for transplant candidates with HCC who received TACE versus RF ablation.


Asunto(s)
Carcinoma Hepatocelular , Ablación por Catéter , Quimioembolización Terapéutica , Enfermedad Hepática en Estado Terminal , Neoplasias Hepáticas , Trasplante de Hígado , Ablación por Radiofrecuencia , Carcinoma Hepatocelular/patología , Ablación por Catéter/efectos adversos , Quimioembolización Terapéutica/efectos adversos , Enfermedad Hepática en Estado Terminal/etiología , Humanos , Neoplasias Hepáticas/diagnóstico por imagen , Neoplasias Hepáticas/terapia , Trasplante de Hígado/efectos adversos , Ablación por Radiofrecuencia/efectos adversos , Sistema de Registros , Estudios Retrospectivos , Índice de Severidad de la Enfermedad , Receptores de Trasplantes , Resultado del Tratamiento
9.
Alcohol Alcohol ; 57(2): 185-189, 2022 Mar 12.
Artículo en Inglés | MEDLINE | ID: mdl-34219147

RESUMEN

Alcohol sales and consumption have increased during the coronavirus disease 2019 pandemic, but their downstream effects on alcohol-related liver disease (ALD) are unclear. We analyzed inter-hospital escalation-of-care referrals to our tertiary care inpatient liver unit across 18 months through December 2020. There was a significant rise in severe ALD with recent unhealthy drinking in our regional community during the pandemic.


Asunto(s)
COVID-19 , Hepatopatías , Consumo de Bebidas Alcohólicas/epidemiología , COVID-19/epidemiología , Hospitales , Humanos , Pandemias , Derivación y Consulta
10.
Am J Transplant ; 20(8): 2254-2259, 2020 08.
Artículo en Inglés | MEDLINE | ID: mdl-32359210

RESUMEN

The novel coronavirus disease 2019 (COVID-19) is a highly infectious and rapidly spreading disease. There are limited published data on the epidemiology and outcomes of COVID-19 infection among organ transplant recipients. After initial flulike symptoms, progression to an inflammatory phase may occur, characterized by cytokine release rapidly leading to respiratory and multiorgan failure. We report the clinical course and management of a liver transplant recipient on hemodialysis, who presented with COVID-19 pneumonia, and despite completing a 5-day course of hydroxychloroquine, later developed marked inflammatory manifestations with rapid improvement after administration of off-label, single-dose tocilizumab. We also highlight the role of lung ultrasonography in early diagnosis of the inflammatory phase of COVID-19. Future investigation of the effects of immunomodulators among transplant recipients with COVID-19 infection will be important.


Asunto(s)
Anticuerpos Monoclonales Humanizados/uso terapéutico , Infecciones por Coronavirus/complicaciones , Trasplante de Hígado , Neumonía Viral/complicaciones , Diálisis Renal , Receptores de Trasplantes , COVID-19 , Carcinoma Hepatocelular/complicaciones , Carcinoma Hepatocelular/cirugía , Infecciones por Coronavirus/tratamiento farmacológico , Hepatitis C/complicaciones , Hepatitis C/cirugía , Humanos , Hidroxicloroquina/uso terapéutico , Inflamación , Cirrosis Hepática/complicaciones , Cirrosis Hepática/cirugía , Neoplasias Hepáticas/complicaciones , Neoplasias Hepáticas/cirugía , Masculino , Persona de Mediana Edad , Pandemias , Neumonía Viral/tratamiento farmacológico , Reoperación , Resultado del Tratamiento , Tratamiento Farmacológico de COVID-19
11.
Am J Transplant ; 20(1): 220-230, 2020 01.
Artículo en Inglés | MEDLINE | ID: mdl-31437349

RESUMEN

Hepatitis C virus infection has been the most common etiology in HCC-related liver transplantation (LT). Since 2014, direct-acting antivirals (DAAs) have dramatically improved HCV cure. We aimed to study the changing pattern of etiologies and impact in outcome in HCC-related LT according to HCV treatment-era through retrospective analysis of the Scientific Registry of Transplant Recipients (SRTR) database (1987-2017). A total of 27 855 HCC-related liver transplants were performed (median age 59 years, 77% male). In the DAA era (2014-2017) there has been a 14.6% decrease in LT for HCV-related HCC; however, HCV remains the most common etiology in 50% of cases. In the same era, there has been a 50% increase in LT for NAFLD-related HCC. Overall survival was significantly worse for HCV-related HCC compared to NAFLD-related HCC during pre-DAA era (2002-2013; P = .031), but these differences disappeared in the DAA era. In addition, HCV patients had a significant improvement in survival when comparing the DAA era with IFN era (P < .001). Independent predictors of survival were significantly different in the pre-DAA era (HCV, AFP, diabetes) than in the DAA era (tumor size). HCV-related HCC continues to be the main indication for LT in the DAA era, but patients' survival has significantly improved and is comparable to that of NAFLD-related HCC.


Asunto(s)
Carcinoma Hepatocelular/mortalidad , Hepatitis C/complicaciones , Neoplasias Hepáticas/mortalidad , Trasplante de Hígado/mortalidad , Sistema de Registros/estadística & datos numéricos , Anciano , Carcinoma Hepatocelular/patología , Carcinoma Hepatocelular/cirugía , Carcinoma Hepatocelular/virología , Femenino , Estudios de Seguimiento , Hepacivirus/aislamiento & purificación , Hepatitis C/virología , Humanos , Neoplasias Hepáticas/patología , Neoplasias Hepáticas/cirugía , Neoplasias Hepáticas/virología , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Retrospectivos , Tasa de Supervivencia , Factores de Tiempo , Estados Unidos
12.
Ann Surg ; 271(6): 1132-1136, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-30672803

RESUMEN

OBJECTIVE: To determine if the association of frailty and waitlist mortality varies by candidate age. BACKGROUND: Frailty, a construct developed in geriatrics, is a state of decreased physiologic reserve, and is associated with mortality while awaiting liver transplantation (LT). However, older candidates have high comorbidity burden and less physiologic reserve, so the relationship between frailty and waitlist mortality may vary by candidate age. METHODS: We studied adults listed for LT at 2 transplant centers. The liver frailty index (grip strength, chair stands, balance) was measured at evaluation, with frailty defined as liver frailty index  ≥ 4.5. We compared the prevalence of frailty in older (≥65 yr) and younger (18-64 yr) candidates. We studied the association between frailty, age, interaction between the 2, and waitlist mortality using competing risks regression adjusted for sex, BMI, and MELDNa. RESULTS: Among 882 LT candidates, 16.6% were ≥ 65 years. Older candidates were more likely to be frail (33.3% vs 21.7%, P = 0.002). Older age [adjusted subhazard ratio (aSHR): 2.16, 95% CI: 1.51-3.09, P < 0.001] and frailty (aSHR: 1.92, 95% CI: 1.38-2.67, P < 0.001) were independently associated with higher risk of waitlist mortality. However, the association between waitlist mortality and frailty did not vary by candidate age (aSHR of frailty for younger patients: 1.90, 95% CI: 1.28-2.80, P = 0.001; aSHR of frailty for older patients: 1.98, 95% CI: 1.07-3.67, P = 0.03; P interaction = 0.9). CONCLUSIONS: Older candidates experienced higher rates of frailty than younger candidates. However, regardless of age, frailty was associated with nearly 2-fold increased risk of waitlist mortality. Our data support the applicability of the frailty concept to the whole LT population and can guide the development of prehabilitation programs targeting frailty in LT patients of all ages.


Asunto(s)
Enfermedad Hepática en Estado Terminal/cirugía , Fragilidad/epidemiología , Trasplante de Hígado/mortalidad , Medición de Riesgo/métodos , Listas de Espera/mortalidad , Anciano , Enfermedad Hepática en Estado Terminal/mortalidad , Femenino , Estudios de Seguimiento , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Tasa de Supervivencia/tendencias , Estados Unidos/epidemiología
13.
Transfusion ; 60(11): 2565-2580, 2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-32920876

RESUMEN

BACKGROUND: Intraoperative massive transfusion (MT) is common during liver transplantation (LT). A predictive model of MT has the potential to improve use of blood bank resources. STUDY DESIGN AND METHODS: Development and validation cohorts were identified among deceased-donor LT recipients from 2010 to 2016. A multivariable model of MT generated from the development cohort was validated with the validation cohort and refined using both cohorts. The combined cohort also validated the previously reported McCluskey risk index (McRI). A simple modified risk index (ModRI) was then created from the combined cohort. Finally, a method to translate model predictions to a population-specific blood allocation strategy was described and demonstrated for the study population. RESULTS: Of the 403 patients, 60 (29.6%) in the development and 51 (25.5%) in the validation cohort met the definition for MT. The ModRI, derived from variables incorporated into multivariable model, ranged from 0 to 5, where 1 point each was assigned for hemoglobin level of less than 10 g/dL, platelet count of less than 100 × 109 /dL, thromboelastography R interval of more than 6 minutes, simultaneous liver and kidney transplant and retransplantation, and a ModRI of more than 2 defined recipients at risk for MT. The multivariable model, McRI, and ModRI demonstrated good discrimination (c statistic [95% CI], 0.77 [0.70-0.84]; 0.69 [0.62-0.76]; and 0.72 [0.65-0.79], respectively, after correction for optimism). For blood allocation of 6 or 15 units of red blood cells (RBCs) based on risk of MT, the ModRI would prevent unnecessary crossmatching of 300 units of RBCs/100 transplants. CONCLUSIONS: Risk indices of MT in LT can be effective for risk stratification and reducing unnecessary blood bank resource utilization.


Asunto(s)
Bancos de Sangre , Transfusión Sanguínea , Cuidados Intraoperatorios , Trasplante de Hígado , Modelos Biológicos , Estudios de Cohortes , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores de Riesgo
14.
Clin Transplant ; 34(10): e14036, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-32652700

RESUMEN

Optimization of maintenance immunosuppression (mIS) regimens in the transplant recipient requires a balance between sufficient potency to prevent rejection and avoidance of excessive immunosuppression to prevent toxicities and complications. The optimal regimen after simultaneous liver-kidney (SLK) transplantation remains unclear, but small single-center reports have shown success with steroid-sparing regimens. We studied 4184 adult SLK recipients using the Scientific Registry of Transplant Recipients, from March 1, 2002, to February 28, 2017, on tacrolimus-based regimens at 1 year post-transplant. We determined the association between mIS regimen and mortality and graft failure using Cox proportional hazard models. The use of steroid-sparing regimens increased post-transplant, from 16.1% at discharge to 88.0% at 5 years. Using multi-level logistic regression modeling, we found center-level variation to be the major contributor to choice of mIS regimen (ICC 44.5%; 95% CI: 36.2%-53.0%). In multivariate analysis, use of a steroid-sparing regimen at 1 year was associated with a 21% decreased risk of mortality compared to steroid-containing regimens (aHR 0.79, P = .01) and 20% decreased risk of liver graft failure (aHR 0.80, P = .01), without differences in kidney graft loss risk (aHR 0.92, P = .6). Among SLK recipients, the use of a steroid-sparing regimen appears to be safe and effective without adverse effects on patient or graft survival.


Asunto(s)
Trasplante de Riñón , Adulto , Rechazo de Injerto/tratamiento farmacológico , Rechazo de Injerto/etiología , Rechazo de Injerto/prevención & control , Supervivencia de Injerto , Humanos , Terapia de Inmunosupresión , Inmunosupresores/uso terapéutico , Riñón , Hígado , Esteroides/uso terapéutico
15.
J Clin Gastroenterol ; 54(8): 682-695, 2020 09.
Artículo en Inglés | MEDLINE | ID: mdl-32554990

RESUMEN

There are >1.5 billion people with chronic liver disease worldwide, causing liver diseases to be a significant global health issue. Diffuse parenchymal liver diseases, including hepatic steatosis, fibrosis, metabolic diseases, and hepatitis cause chronic liver injury and may progress to fibrosis and eventually hepatocellular carcinoma. As early diagnosis and treatment of these diseases impact the progression and outcome, the need for assessment of the liver parenchyma has increased. While the current gold standard for evaluation of the hepatic parenchymal tissue, biopsy has disadvantages and limitations. Consequently, noninvasive methods have been developed based on serum biomarkers and imaging techniques. Conventional imaging modalities such as ultrasound, computed tomography scan, and magnetic resonance imaging provide noninvasive options for assessment of liver tissue. However, several recent advances in liver imaging techniques have been introduced. This review article focuses on the current status of imaging methods for diffuse parenchymal liver diseases assessment including their diagnostic accuracy, advantages and disadvantages, and comparison between different techniques.


Asunto(s)
Diagnóstico por Imagen de Elasticidad , Neoplasias Hepáticas , Humanos , Hígado/diagnóstico por imagen , Hígado/patología , Cirrosis Hepática/patología , Neoplasias Hepáticas/diagnóstico por imagen , Neoplasias Hepáticas/patología , Imagen por Resonancia Magnética , Ultrasonografía
16.
Turk J Med Sci ; 50(SI-2): 1642-1650, 2020 11 03.
Artículo en Inglés | MEDLINE | ID: mdl-32222125

RESUMEN

Liver transplantation (LT) remains the only therapeutic option offering gold standard treatment for end-stage liver disease (ESLD) and acute liver failure (ALF), as well as for certain early-stage liver tumors. Currently, the greatest challenge facing LT is the simple fact that there are not enough adequate livers for all the potential patients that could benefit from LT. Despite efforts to expand the donor pool to include living and deceased donors, organ shortage is still a major problem in many countries. To solve this problem, the use of marginal liver grafts has become an inevitable choice. Although the definition of marginal grafts or criteria for expanded donor selection has not been clarified yet, they are usually defined as grafts that may potentially cause primary nonfunction, impaired function, or late loss of function. These include steatotic livers, older donors, donors with positive viral serology, split livers, and donation after cardiac death (DCD). Therefore, to get the best outcome from these liver grafts, donor-recipient selection should be vigilant. Alcohol- related liver disease (ALD) is one of the most common indications for LT in Europe and North America. Traditionally, LT for alcoholic liver disease was kept limited for patients who have achieved 6 months of abstinence, in part due to social and ethical concerns regarding the use of a limited resource. However, the majority of patients with severe alcoholic hepatitis who fail medical therapy will not live long enough to meet this requirement. Besides, the initial results of early liver transplantation (ELT) without waiting for 6 months of abstinence period are satisfactory in severe alcoholic hepatitis (SAH). It will be important to take care of these patients from a newer perspective.


Asunto(s)
Enfermedad Hepática en Estado Terminal/cirugía , Trasplante de Hígado , Obtención de Tejidos y Órganos , Factores de Edad , Infecciones por VIH , Hepatitis Alcohólica , Humanos , Obesidad , Donantes de Tejidos
17.
Gastroenterology ; 155(2): 422-430.e1, 2018 08.
Artículo en Inglés | MEDLINE | ID: mdl-29655837

RESUMEN

BACKGROUND & AIMS: The American Consortium of Early Liver Transplantation for Alcoholic Hepatitis comprises 12 centers from 8 United Network for Organ Sharing regions studying early liver transplantation (LT) (without mandated period of sobriety) for patients with severe alcoholic hepatitis (AH). We analyzed the outcomes of these patients. METHODS: We performed a retrospective study of consecutive patients with a diagnosis of severe AH and no prior diagnosis of liver disease or episodes of AH, who underwent LT before 6 months of abstinence from 2006 through 2017 at 12 centers. We collected data on baseline characteristics, psychosocial profiles, level of alcohol consumption before LT, disease course and treatment, and outcomes of LT. The interval of alcohol abstinence was defined as the time between last drink and the date of LT. The primary outcomes were survival and alcohol use after LT, defined as slip or sustained. RESULTS: Among 147 patients with AH who received liver transplants, the median duration of abstinence before LT was 55 days; 54% received corticosteroids for AH and the patients had a median Lille score of 0.82 and a median Sodium Model for End-Stage Liver Disease score of 39. Cumulative patient survival percentages after LT were 94% at 1 year (95% confidence interval [CI], 89%-97%) and 84% at 3 years (95% CI, 75%-90%). Following hospital discharge after LT, 72% were abstinent, 18% had slips, and 11% had sustained alcohol use. The cumulative incidence of any alcohol use was 25% at 1 year (95% CI, 18%-34%) and 34% at 3 years (95% CI, 25%-44%) after LT. The cumulative incidence of sustained alcohol use was 10% at 1 year (95% CI, 6%-18%) and 17% at 3 years (95% CI, 10%-27%) after LT. In multivariable analysis, only younger age was associated with alcohol following LT (P = .01). Sustained alcohol use after LT was associated with increased risk of death (hazard ratio, 4.59; P = .01). CONCLUSIONS: In a retrospective analysis of 147 patients who underwent early LT (before 6 months of abstinence) for severe AH, we found that most patients survive for 1 year (94%) and 3 years (84%), similar to patients receiving liver transplants for other indications. Sustained alcohol use after LT was infrequent but associated with increased mortality. Our findings support the selective use of LT as a treatment for severe AH. Prospective studies are needed to optimize selection criteria, management of patients after LT, and long-term outcomes.


Asunto(s)
Abstinencia de Alcohol/estadística & datos numéricos , Consumo de Bebidas Alcohólicas/epidemiología , Hepatopatías Alcohólicas/cirugía , Trasplante de Hígado/estadística & datos numéricos , Selección de Paciente , Adulto , Factores de Edad , Consumo de Bebidas Alcohólicas/efectos adversos , Femenino , Estudios de Seguimiento , Humanos , Incidencia , Hepatopatías Alcohólicas/etiología , Hepatopatías Alcohólicas/mortalidad , Trasplante de Hígado/normas , Masculino , Persona de Mediana Edad , Recurrencia , Estudios Retrospectivos , Factores de Riesgo , Análisis de Supervivencia , Factores de Tiempo , Resultado del Tratamiento , Estados Unidos/epidemiología
18.
Transpl Infect Dis ; 21(6): e13194, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31609520

RESUMEN

BACKGROUND: The opioid crisis has led to an increase in hepatitis C virus-positive donors in the past decade. Whereas historically hepatitis C seropositive organs were routinely discarded, the advent of direct-acting antiviral agents has notably expanded the utilization of organs from donors with hepatitis C. There has been growing experience with liver transplantation (LT) from hepatitis C seropositive donors to hepatitis C seropositive recipients. However, data remain limited on LT from hepatitis C seropositive or hepatitis C ribonucleic acid positive donors to hepatitis C seronegative recipients. METHODS: We performed a retrospective study of 26 hepatitis C seronegative recipients who received hepatitis C seropositive donor livers followed by preemptive antiviral therapy with direct-acting antiviral treatment at the Johns Hopkins Hospital Comprehensive Transplant Center from January 1, 2017, to August 31, 2019. RESULTS: Twenty-five of the 26 recipients are alive with proper graft function; 20 of them received livers from hepatitis C nucleic acid testing positive donors. All 12 recipients who completed their direct-acting antiviral courses and have reached sufficient follow-up for sustained virologic response have achieved sustained virologic response. Nine of our recipients have either completed direct-acting antiviral treatment without sufficient follow-up time for sustained virologic response or are undergoing direct-acting antiviral treatment. One patient is awaiting antiviral treatment initiation pending insurance approval. Of note, 11 of 12 patients with sustained virologic response received a hepatitis C nucleic acid testing positive donor liver. CONCLUSION: Hepatitis C seronegative patients who receive a hepatitis C seropositive or hepatitis C nucleic acid testing positive liver allograft can enjoy good short-term outcomes with hepatitis C cure following direct-acting antiviral treatment.


Asunto(s)
Profilaxis Antibiótica/métodos , Antivirales/uso terapéutico , Selección de Donante/métodos , Hepatitis C/prevención & control , Trasplante de Hígado/efectos adversos , Adulto , Anciano , Aloinjertos/virología , Femenino , Hepacivirus/genética , Hepacivirus/aislamiento & purificación , Hepatitis C/transmisión , Hepatitis C/virología , Humanos , Hígado/virología , Trasplante de Hígado/métodos , Masculino , Persona de Mediana Edad , ARN Viral/aislamiento & purificación , Estudios Retrospectivos , Respuesta Virológica Sostenida , Resultado del Tratamiento , Adulto Joven
19.
J Intensive Care Med ; 34(4): 277-291, 2019 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-29879862

RESUMEN

Acute alcoholic hepatitis is a syndrome of jaundice and hepatic decompensation that occurs with excessive alcohol consumption. The diagnosis can be made with a combination of clinical characteristics and laboratory studies, though biopsy may be required in unclear cases. Acute alcoholic hepatitis can range from mild to severe disease, as determined by a Maddrey discriminant function ≥32. Mild forms can be managed with supportive care and abstinence from alcohol. While mild form has an overall good prognosis, severe alcoholic hepatitis is associated with an extremely high short-term mortality of up to 50%. Additional complications of severe alcoholic hepatitis can include hepatic encephalopathy, gastrointestinal bleeding, renal failure, and infection; these patients frequently require intensive care unit admission. Corticosteroids may have short-term benefit in this group of patients if there are no contraindications; however, a subset of patients do not respond to steroids. New emerging therapies, which target hepatic regeneration, bile acid metabolism, and extracorporeal liver support, are being investigated. Liver transplantation for alcoholic liver disease was traditionally only considered in patients who have achieved 6 months of abstinence, in part due to social and ethical concerns regarding the use of a limited resource. However, the majority of patients with severe alcoholic hepatitis who fail medical therapy will not live long enough to meet this requirement. Recent studies have demonstrated that early liver transplantation in carefully selected patients with severe alcoholic hepatitis who fail medical therapy can provide a significant survival benefit and yields survival outcomes comparable to liver transplantation for other indications, with 6-month survival rates ranging from 77% to 100%. Alcohol relapse posttransplantation remains an important challenge, and heavy consumption can contribute to graft loss and mortality. Future investigation should address the substantial post-liver transplantation recidivism rate, from improving selection criteria to increasing posttransplantation substance abuse treatment resources.


Asunto(s)
Hepatitis Alcohólica/cirugía , Trasplante de Hígado/mortalidad , Hepatitis Alcohólica/mortalidad , Humanos , Selección de Paciente , Periodo Posoperatorio , Recurrencia , Tasa de Supervivencia
20.
Transpl Infect Dis ; 20(6): e12982, 2018 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-30144258

RESUMEN

With new practice guidelines, it is important to understand how liver transplant (LT) centers have incorporated direct-acting antivirals (DAAs) into the management of hepatitis C virus-infected (HCV+) candidates and recipients. To explore how DAAs have affected LT centers' willingness to treat HCV+ candidates and recipients and to use HCV+ donors, we surveyed high volume US LT centers (11/2014-12/2015) regarding practices for HCV+ candidates, recipients, and donors, before vs after DAAs. We used the Scientific Registry of Transplant Recipients to compare centers' number of LTs, HCV+ recipients, and HCV+ donors in the years before (1/1/2012-12/31/2013) and after (1/1/2016-12/31/2017) survey administration. Of 80 centers contacted, 57 (71.3%) responded, representing 69.0% of the total volume of LTs in 2013. After DAAs, most centers increased treating candidates with low (≤15) model for end-stage liver disease (MELD) (85.2%), intermediate/high (>15) MELD (92.6%), and hepatocellular carcinoma (79.6%). There was consensus to treat low MELD candidates (90.8% "most of the time/always"), but less certainty for intermediate/high MELD candidates (48.2% "sometimes"). Universal post-LT HCV treatment increased (7.4% vs 57.4%). After DAAs, 42.6% were more willing to use HCV+ donors for HCV+ candidates, and 38.9% were willing to consider using HCV+ donors for HCV- candidates. Overall, with DAAs, centers were more willing to treat HCV+ candidates and recipients and to use HCV+ donors; recent recommendations may help to guide treatment decisions for intermediate/high MELD candidates.


Asunto(s)
Antivirales/uso terapéutico , Enfermedad Hepática en Estado Terminal/cirugía , Hepatitis C/tratamiento farmacológico , Pautas de la Práctica en Medicina/estadística & datos numéricos , Sistema de Registros/estadística & datos numéricos , Antivirales/normas , Toma de Decisiones Clínicas , Selección de Donante/normas , Enfermedad Hepática en Estado Terminal/virología , Encuestas de Atención de la Salud/estadística & datos numéricos , Hepacivirus , Hepatitis C/epidemiología , Hepatitis C/virología , Humanos , Trasplante de Hígado , Selección de Paciente , Médicos/estadística & datos numéricos , Guías de Práctica Clínica como Asunto , Pautas de la Práctica en Medicina/normas , Pautas de la Práctica en Medicina/tendencias , Índice de Severidad de la Enfermedad , Donantes de Tejidos/estadística & datos numéricos , Receptores de Trasplantes/estadística & datos numéricos , Estados Unidos/epidemiología , Listas de Espera
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