67 results on '"Im GY"'
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2. Hidradenitis suppurativa diagnosis does not predispose patients to greater complication risk for body contouring surgery.
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Byrnes KG, Mercante M, Im GY, Campbell CA, and Flowers RH
- Abstract
Competing Interests: Conflicts of interest Dr Flowers serves as a principal investigator for Abbvie, Acelyrin, Clinuvel, Regeneron/Sanofi, and Sun Pharmaceuticals. He has served on advisory boards for Argenx, Bristol-Myers Squibb, and Janssen. Dr Campbell serves as a consultant for Mentor (Johnson&Johnson), Integra Life Science and has received research grants from Abbvie, Inc. Authors Byrnes, Im, and Mercante have no conflicts of interest to declare.
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- 2024
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3. Quality measures in pre-liver transplant care by the Practice Metrics Committee of the American Association for the Study of Liver Diseases.
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Brahmania M, Kuo A, Tapper EB, Volk ML, Vittorio JM, Ghabril M, Morgan TR, Kanwal F, Parikh ND, Martin P, Mehta S, Winder GS, Im GY, Goldberg D, Lai JC, Duarte-Rojo A, Paredes AH, Patel AA, Sahota A, McElroy LM, Thomas C, Wall AE, Malinis M, Aslam S, Simonetto DA, Ufere NN, Ramakrishnan S, Flynn MM, Ibrahim Y, Asrani SK, and Serper M
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- Humans, United States, Preoperative Care standards, Preoperative Care methods, Delphi Technique, Quality Indicators, Health Care, Liver Transplantation standards, Waiting Lists
- Abstract
The liver transplantation (LT) evaluation and waitlisting process is subject to variations in care that can impede quality. The American Association for the Study of Liver Diseases (AASLD) Practice Metrics Committee (PMC) developed quality measures and patient-reported experience measures along the continuum of pre-LT care to reduce care variation and guide patient-centered care. Following a systematic literature review, candidate pre-LT measures were grouped into 4 phases of care: referral, evaluation and waitlisting, waitlist management, and organ acceptance. A modified Delphi panel with content expertise in hepatology, transplant surgery, psychiatry, transplant infectious disease, palliative care, and social work selected the final set. Candidate patient-reported experience measures spanned domains of cognitive health, emotional health, social well-being, and understanding the LT process. Of the 71 candidate measures, 41 were selected: 9 for referral; 20 for evaluation and waitlisting; 7 for waitlist management; and 5 for organ acceptance. A total of 14 were related to structure, 17 were process measures, and 10 were outcome measures that focused on elements not typically measured in routine care. Among the patient-reported experience measures, candidates of LT rated items from understanding the LT process domain as the most important. The proposed pre-LT measures provide a framework for quality improvement and care standardization among candidates of LT. Select measures apply to various stakeholders such as referring practitioners in the community and LT centers. Clinically meaningful measures that are distinct from those used for regulatory transplant reporting may facilitate local quality improvement initiatives to improve access and quality of care., (Copyright © 2024 American Association for the Study of Liver Diseases.)
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- 2024
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4. Age added to MELD or ACLF predicts survival in patients with alcohol-associated hepatitis declined for liver transplantation.
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Rutledge SM, Nathani R, Wyatt BE, Eschbach E, Trivedi P, Kerznerman S, Chu L, Schiano TD, Kim-Schluger L, Florman S, and Im GY
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- Humans, Male, Female, Middle Aged, Adult, Age Factors, Retrospective Studies, Patient Selection, Prognosis, Liver Transplantation mortality, Hepatitis, Alcoholic mortality, Hepatitis, Alcoholic surgery, Hepatitis, Alcoholic complications, Acute-On-Chronic Liver Failure mortality, Acute-On-Chronic Liver Failure surgery, Waiting Lists mortality, Severity of Illness Index
- Abstract
Background: Severe alcohol-associated hepatitis (AH) that is nonresponsive to corticosteroids is associated with high mortality, particularly with concomitant acute-on-chronic liver failure (ACLF). Most patients will not be candidates for liver transplantation (LT) and their outcomes are largely unknown. Our aim was to determine the outcomes of these declined candidates and to derive practical prediction models for transplant-free survival applicable at the time of the waitlist decision., Methods: We analyzed a database of patients with severe AH who were hospitalized at a LT center from January 2012 to July 2021, using the National Death Index for those lacking follow-up. Clinical variables were analyzed based on the endpoints of mortality at 30, 60, 90, and 180 days. Logistic and Cox regression analyses were used for model derivation., Results: Over 9.5 years, 206 patients with severe AH were declined for LT, mostly for unfavorable psychosocial profiles, with a mean MELD of 33 (±8), and 61% with ACLF. Over a median follow-up of 521 (17.5-1368) days, 58% (119/206) died at a median of 21 (9-124) days. Of 32 variables, only age added prognostic value to MELD and ACLF grade. CLIF-C ACLF score and 2 new models, MELD-Age and ACLF-Age, had similar predictability (AUROC: 0.73, 0.73, 0.72, respectively), outperforming Lille and Maddrey's (AUROC: 0.63, 0.62). In internal cross-validation, the average AUROC was 0.74. ACLF grade ≥2, MELD score >35, and age >45 years were useful cutoffs for predicting increased 90-day mortality from waitlist decision. Only two patients initially declined for LT for AH subsequently underwent LT (1%)., Conclusions: Patients with severe AH declined for LT have high short-term mortality and rare rates of subsequent LT. Age added to MELD or ACLF grade enhances survival prediction at the time of waitlist decision in patients with severe AH declined for LT., (Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Association for the Study of Liver Diseases.)
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- 2024
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5. Transplant selection simulation: Liver transplantation for alcohol-associated hepatitis.
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Im GY, Goel A, Asrani S, Singal AK, Wall A, and Sherman CB
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- Humans, Male, Female, Middle Aged, Treatment Outcome, Risk Assessment statistics & numerical data, Risk Assessment methods, Adult, Quality of Life, Risk Factors, Liver Transplantation adverse effects, Patient Selection, Hepatitis, Alcoholic surgery, Hepatitis, Alcoholic diagnosis, Hepatitis, Alcoholic psychology, Recurrence
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Liver transplantation (LT) for alcohol-associated hepatitis (AH) remains controversial due to concerns about candidate selection subjectivity, post-LT alcohol relapse, and the potential exacerbation of LT disparities. Our aim was to design, perform, and examine the results of a simulated selection of candidates for LT for AH. Medical histories, psychosocial profiles and scores, and outcomes of 4 simulation candidates were presented and discussed at 2 multidisciplinary societal conferences with real-time polling of participant responses. Candidate psychosocial profiles represented a wide spectrum of alcohol relapse risk. The predictive accuracy of four psychosocial scores, Dallas consensus criteria, sustained alcohol use post-LT, Stanford Integrated Psychosocial Assessment for Transplant, and QuickTrans, were assessed. Overall, 68 providers, mostly academic transplant hepatologists, participated in the simulation. Using a democratic process of selection, a significant majority from both simulations voted to accept the lowest psychosocial risk candidate for LT (72% and 85%) and decline the highest risk candidate (78% and 90%). For the 2 borderline-risk candidates, a narrower majority voted to decline (56% and 65%; 64% and 82%). Two out of 4 patients had post-LT relapse. Predictive accuracies of Dallas, Stanford Integrated Psychosocial Assessment for Transplant, and Quicktrans scores were 50%, while sustained alcohol use post-LT was 25%. The majority of voting outcomes were concordant with post-LT relapse in 3 out of 4 patients. When defining "success" in LT for AH, providers prioritized allograft health and quality of life rather than strict abstinence. In this simulation of LT for AH using a democratic process of selection, we demonstrate its potential as a learning model to evaluate the accuracy of psychosocial scores in predicting post-LT relapse and the concordance of majority voting with post-LT outcomes. Provider definitions of "success" in LT for AH have shifted toward patient-centered outcomes., (Copyright © 2023 American Association for the Study of Liver Diseases.)
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- 2024
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6. The Survival Benefit of Reabstinence After Harmful Alcohol Use Following Early Liver Transplant for Severe Alcohol-Associated Hepatitis: A Multicenter ACCELERATE Study.
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Dukewich M, Dodge JL, Lucey MR, Rice JP, Shetty K, Jakhete N, Im GY, Weinberg EM, Hsu C, Smith C, Ghobrial RM, Therapondos G, Shoreibah M, Aryan M, Eswaran S, Fix OK, Maddur H, Terrault N, and Lee BP
- Abstract
Introduction: Early (i.e., without mandated period of abstinence) liver transplant (LT) for alcohol-associated hepatitis is the fastest-growing indication for LT in the United States and Europe. Harmful alcohol use after LT is associated with poor outcomes, but the distinction of establishing abstinence after return to drinking (i.e., reabstinence) is understudied. This study aims to characterize the survival outcomes of achieving reabstinence after post-LT harmful alcohol use., Methods: We analyzed early LT recipients from 12 US LT centers between 2006 and 2021. Post-LT alcohol use was characterized as harmful using criteria of "binge" (≥5 [men] or ≥4 [women] drinks in < 24 hours) or "frequent" (≥4 days in one week) by interview or phosphatidylethanol >20 ng/mL. Reabstinence was defined as ≥12 consecutive months without harmful alcohol use after harmful alcohol use., Results: Among 347 LT recipients (64% male, median age 43, median Model for End-Stage Liver Disease-Sodium score 38) with median post-LT follow-up of 2.2 years (interquartile interval 1.1-3.6), 276 (80%) recipients had no evidence of harmful alcohol use, 35 (10%) recipients had reabstinence, and 36 (10%) recipients had continued harmful alcohol use without reabstinence. Five-year predicted survival, adjusted for age, sex, and Model for End-Stage Liver Disease-Sodium score, was lowest among LT recipients with continued harmful alcohol use (77%), but similar among those with no harmful use (93%) and reabstinence (94%)., Discussion: Achieving reabstinence after post-LT harmful alcohol use is associated with similar 5-year post-LT survival compared with those without evidence of post-LT harmful alcohol use. Our findings highlight the importance of early detection and treatment of post-LT alcohol use., (Copyright © 2024 by The American College of Gastroenterology.)
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- 2024
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7. Clinical criteria accurately diagnose severe but not moderate alcohol-associated hepatitis: A systematic review and meta-analysis.
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Verma N, Mehtani R, Haiar JM, Pradhan P, Duseja A, Im GY, and Singal AK
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- Humans, Severity of Illness Index, Aspartate Aminotransferases, Bilirubin, End Stage Liver Disease, Hepatitis, Alcoholic diagnosis
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Background: The precision of clinical criteria and the utility of liver biopsy for diagnosis or prognosis remain unclear in patients with alcohol-associated hepatitis (AH). We systematically reviewed the literature to answer these questions., Methods: Four databases were searched for studies describing the precision of clinical criteria (National Institute on Alcohol Abuse and Alcoholism, European Association for Study of Liver, or classical) and the role of histology in AH. The precision(positive predictive value) of criteria was pooled through random-effects meta-analysis, and its variation was investigated through subgroups and meta-regression of study-level factors with their percent contribution to variation (R2). The risk of bias among studies was evaluated through the QUADAS2 tool (PROSPERO-ID-CRD4203457250)., Results: Of 4320 studies, 18 in the systematic review and 15 (10/5: low/high risk of bias, N=1639) were included in the meta-analysis. The pooled precision of clinical criteria was 80.2% (95% CI: 69.7-89.7, I2:93%, p < 0.01), higher in studies with severe AH (mean-Model for End-Stage Liver Disease > 20) versus moderate AH (mean-Model for End-Stage Liver Disease < 20): 92% versus 67.1%, p < 0.01, and in studies with serum bilirubin cutoff 5 versus 3 mg/dL (88.5% vs.78.8%, p = 0.01). The factors contributing to variation in precision were Model for End-Stage Liver Disease (R2:72.7%), upper gastrointestinal bleed (R2:56.3%), aspartate aminotransferase:aspartate aminotransferase ratio (R2:100%), clinical criteria (R2:40.9%), bilirubin (R2:22.5%), and Mallory body on histology (R2:19.1%).The net inter-pathologist agreement for histologic findings of AH was variable (0.33-0.97), best among 2 studies describing AH through simple and uniform criteria, including steatosis, ballooning, and neutrophilic inflammation. Few studies reported the utility of histology in estimating steroid responsiveness (N = 1) and patient prognosis (N = 4); however, very broad septa, pericellular fibrosis, and cholestasis were associated with mortality. Bilirubinostasis was associated with infection in 1 study., Conclusions: Clinical criteria are reasonably precise for diagnosing severe AH, while there is an unmet need for better criteria for diagnosing moderate AH. Histologic diagnosis of AH should be simple and uniform., (Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Association for the Study of Liver Diseases.)
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- 2024
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8. Universal alcohol biomarker monitoring improves drinking detection and accountability during evaluation for liver transplantation.
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Winters AC, Nathani RR, Bowman CA, Nahas J, Schiano TD, Florman SS, and Im GY
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- Humans, Alcohol Drinking adverse effects, Biomarkers, Social Responsibility, Liver Transplantation adverse effects, Liver Diseases, Alcoholic diagnosis, Liver Diseases, Alcoholic surgery, Alcoholism diagnosis
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- 2024
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9. Outcomes after kidney transplant alone in patients with cirrhosis-A case-control study.
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Nathani RR, Rutledge SM, Villarroel CS, Shapiro R, Florman SS, Tedla FM, Schiano TD, and Im GY
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- Humans, Case-Control Studies, Retrospective Studies, Liver Cirrhosis complications, Liver Cirrhosis surgery, Transplantation, Homologous, Kidney Transplantation adverse effects
- Abstract
Background: Guidelines recommend kidney transplant alone (KTA) in compensated cirrhosis based on a few small studies, but this is not widely performed despite its potential benefit to patients and the organ supply. Our aim was to determine the outcomes of KTA in patients with compensated cirrhosis., Study Design: From 1/2012 to 12/2021, outcomes in KTA recipients with compensated cirrhosis were retrospectively compared to patients with chronic liver disease (CLD) but no cirrhosis. Patients with compensated cirrhosis were also compared to a matched cohort (based on age, time on hemodialysis, sex, and ethnicity) of KTA recipients without CLD. The outcomes included patient survival, allograft failure, allograft rejection, serious infection, liver decompensation, and length of stay (LOS)., Results: Over 9 years, 1562 KTAs were performed, with 150 (9.6%) patients having CLD mostly due to chronic hepatitis C, and a median follow-up of 3.5 years. 32/150 (21%) had compensated cirrhosis at the time of KTA with a mean MELD-Na of 22 (1.5). Matched controls (n = 189) were identified. We found no differences in patient survival (p = .07), allograft failure (p = .6), allograft rejection (p = .43), rates of serious infection (p = .31), as well as LOS (p = .61) among patients with compensated cirrhosis compared to patients with CLD but no cirrhosis, but with higher rates of liver decompensation (p = .004). Similarly, compared to patients without CLD, patients with cirrhosis had similar rates of patient survival (p = .20), allograft failure (p = .27), allograft rejection (p = .62) and LOS (p = .19) but with higher rates of serious infections (p = .001)., Conclusions: Our study supports the safety and efficacy of KTA in patients with compensated cirrhosis., (© 2024 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)
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- 2024
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10. Second thoughts about second opinions for liver transplantation.
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Im GY
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- 2023
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11. The novel SALT-M score predicts 1-year post-transplant mortality in patients with severe acute-on-chronic liver failure.
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Hernaez R, Karvellas CJ, Liu Y, Sacleux SC, Khemichian S, Stein LL, Shetty K, Lindenmeyer CC, Boike JR, Simonetto DA, Rahimi RS, Jalal PK, Izzy M, Kriss MS, Im GY, Lin MV, Jou JH, Fortune BE, Cholankeril G, Kuo A, Mahmud N, Kanwal F, Saliba F, Sundaram V, Artzner T, and Jalan R
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- Humans, Middle Aged, Liver Cirrhosis complications, Retrospective Studies, Risk Assessment, Prognosis, Acute-On-Chronic Liver Failure etiology, Liver Transplantation adverse effects
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Background & Aims: Twenty-eight-day mortality ranges from 30-90% in patients with acute-on-chronic liver failure grades 2/3 (severe ACLF). Though liver transplantation (LT) has demonstrated a survival benefit, the scarcity of donor organs and uncertainty regarding post-LT mortality among patients with severe ACLF may cause hesitancy. We developed and externally validated a model to predict 1-year post-LT mortality in severe ACLF, called the Sundaram ACLF-LT-Mortality (SALT-M) score, and estimated the median length of stay (LoS) after LT (ACLF-LT-LoS)., Methods: In 15 LT centers in the US, we retrospectively identified a cohort of patients with severe ACLF transplanted between 2014-2019, followed up to Jan'2022. Candidate predictors included demographics, clinical and laboratory values, and organ failures. We selected predictors in the final model using clinical criteria and externally validated them in two French cohorts. We provided measures of overall performance, discrimination, and calibration. We used multivariable median regression to estimate LoS after adjusting for clinically relevant factors., Results: We included 735 patients, of whom 521 (70.8%) had severe ACLF (120 ACLF-3, external cohort). The median age was 55 years, and 104 with severe ACLF (19.9%) died within 1-year post-LT. Our final model included age >50 years, use of 1/≥2 inotropes, presence of respiratory failure, diabetes mellitus, and BMI (continuous). The c-statistic was 0.72 (derivation) and 0.80 (validation), indicating adequate discrimination and calibration based on the observed/expected probability plots. Age, respiratory failure, BMI, and presence of infection independently predicted median LoS., Conclusions: The SALT-M score predicts mortality within 1-year after LT in patients with ACLF. The ACLF-LT-LoS score predicted median post-LT stay. Future studies using these scores could assist in determining transplant benefits., Impact and Implications: Liver transplantation (LT) may be the only life-saving procedure available to patients with acute-on-chronic liver failure (ACLF), but clinically instability can augment the perceived risk of post-transplant mortality at 1 year. We developed a parsimonious score with clinically and readily available parameters to objectively assess 1-year post-LT survival and predict median length of stay after LT. We developed and externally validated a clinical model called the Sundaram ACLF-LT-Mortality score in 521 US patients with ACLF with 2 or ≥3 organ failure(s) and 120 French patients with ACLF grade 3. The c-statistic was 0.72 in the development cohort and 0.80 in the validation cohort. We also provided an estimation of the median length of stay after LT in these patients. Our models can be used in discussions on the risks/benefits of LT in patients listed with severe ACLF. Nevertheless, the score is far from perfect and other factors, such as patient's preference and center-specific factors, need to be considered when using these tools., (Published by Elsevier B.V.)
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- 2023
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12. Emerging Biomarkers in Alcohol-associated Hepatitis.
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Im GY
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Alcohol-associated hepatitis (AH) is a clinical syndrome of jaundice, abdominal pain, and anorexia due to prolonged heavy alcohol intake. AH is associated with changes in gene expression, cytokines, immune response, and the gut microbiome. There are limited biomarkers to diagnose and prognosticate in AH, but several non-invasive biomarkers are emerging. In this review, clinical risk-stratifying algorithms, promising AH biomarkers like cytokeratin-18 fragments, genetic polymorphisms, and microRNAs will be reviewed., (© 2022 Indian National Association for Study of the Liver. Published by Elsevier B.V. All rights reserved.)
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- 2023
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13. Early Liver Transplantation for Severe Alcohol-Associated Hepatitis and a History of Prior Liver Decompensation.
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Weinberg EM, Dukewich M, Jakhete N, Stonesifer E, Im GY, Lucey MR, Shetty K, Rice JP, Victor DW 3rd, Ghobrial MR, Shetty A, Rutledge SM, Florman SS, Hsu C, Shoreibah M, Aryan M, Orandi BJ, Han H, Terrault N, and Lee BP
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- Humans, Adult, Gastrointestinal Hemorrhage, Severity of Illness Index, Retrospective Studies, Liver Transplantation, End Stage Liver Disease surgery, Esophageal and Gastric Varices, Hepatitis, Alcoholic surgery
- Abstract
Introduction: In the published studies of early liver transplantation (LT) for alcohol-associated hepatitis (AH), patients with a prior liver decompensation are excluded. The appropriateness of this criteria is unknown., Methods: Among 6 American Consortium of Early Liver Transplantation for Alcohol-Associated Hepatitis sites, we included consecutive early LT for clinically diagnosed AH between 2007 and 2020. Patients were stratified as first vs prior history of liver decompensation, with the latter defined as a diagnosis of ascites, hepatic encephalopathy, variceal bleeding, or jaundice, and evidence of alcohol use after this event. Adjusted Cox regression assessed the association of first (vs prior) decompensation with post-LT mortality and harmful (i.e., any binge and/or frequent) alcohol use., Results: A total of 241 LT recipients (210 first vs 31 prior decompensation) were included: median age 43 vs 38 years ( P = 0.23), Model for End-Stage Liver Disease Sodium score of 39 vs 39 ( P = 0.98), and follow-up after LT 2.3 vs 1.7 years ( P = 0.08). Unadjusted 1- and 3-year survival among first vs prior decompensation was 93% (95% confidence interval [CI] 89%-96%) vs 86% (95% CI 66%-94%) and 85% (95% CI 79%-90%) vs 78% (95% CI 57%-89%). Prior (vs first) decompensation was associated with higher adjusted post-LT mortality (adjusted hazard ratio 2.72, 95% CI 1.61-4.59) and harmful alcohol use (adjusted hazard ratio 1.77, 95% CI 1.07-2.94)., Discussion: Prior liver decompensation was associated with higher risk of post-LT mortality and harmful alcohol use. These results are a preliminary safety signal and validate first decompensation as a criterion for consideration in early LT for AH patients. However, the high 3-year survival suggests a survival benefit for early LT and the need for larger studies to refine this criterion. These results suggest that prior liver decompensation is a risk factor, but not an absolute contraindication to early LT., (Copyright © 2022 by The American College of Gastroenterology.)
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- 2022
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14. Standardising early liver transplantation for severe alcohol-related hepatitis.
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Im GY
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- Alcohol Abstinence, Humans, Hepatitis, Alcoholic surgery, Liver Transplantation
- Abstract
Competing Interests: I declare no competing interests.
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- 2022
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15. Reply.
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Vogel AS and Im GY
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- 2022
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16. Artificial intelligence to identify harmful alcohol use after early liver transplant for alcohol-associated hepatitis.
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Lee BP, Roth N, Rao P, Im GY, Vogel AS, Hasbun J, Roth Y, Shenoy A, Arvelakis A, Ford L, Dawe I, Schiano TD, Davis JP, Rice JP, Eswaran S, Weinberg E, Han H, Hsu C, Fix OK, Maddur H, Ghobrial RM, Therapondos G, Dilkina B, and Terrault NA
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- Artificial Intelligence, Humans, Recurrence, Retrospective Studies, Alcoholism complications, Hepatitis, Alcoholic complications, Hepatitis, Alcoholic diagnosis, Hepatitis, Alcoholic surgery, Liver Diseases, Alcoholic complications, Liver Transplantation adverse effects
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Early liver transplantation (LT) for alcohol-associated hepatitis (AH) is the fastest growing indication for LT, but prediction of harmful alcohol use post-LT remains limited. Among 10 ACCELERATE-AH centers, we examined psychosocial evaluations from consecutive LT recipients for AH from 2006 to 2017. A multidisciplinary panel used content analysis to develop a maximal list of psychosocial variables. We developed an artificial intelligence model to predict post-LT harmful alcohol use. The cohort included training (N = 91 among 8 centers) and external validation (N = 25 among 2 centers) sets, with median follow-up of 4.4 (IQR 3.0-6.0) years post-LT. In the training set, AUC was 0.930 (95%CI 0.862-0.998) with positive predictive value of 0.891 (95%CI 0.620-1.000), internally validated through fivefold cross-validation. In the external validation set, AUC was 0.692 (95%CI 0.666-0.718) with positive predictive value of 0.82 (95%CI 0.625-1.000). The model identified specific variables related to social support and substance use as highly important to predict post-LT harmful alcohol use. We retrospectively developed and validated a model that identified psychosocial profiles at LT predicting harmful alcohol use post-LT for AH. This preliminary model may inform selection and post-LT management for AH and warrants prospective evaluation in larger studies among all alcohol-associated liver disease being considered for early LT., (© 2022 The Authors. American Journal of Transplantation published by Wiley Periodicals LLC on behalf of The American Society of Transplantation and the American Society of Transplant Surgeons.)
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- 2022
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17. Patterns of Alcohol Use After Early Liver Transplantation for Alcoholic Hepatitis.
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Lee BP, Im GY, Rice JP, Lazar A, Weinberg E, Han H, Maddur H, Ghobrial RM, Therapondos G, Hsu C, Fix OK, Eswaran S, Shetty K, Chhatwal J, Dalgic OO, Jakhete N, Mobley C, Victor DW, Mehta N, Dinges L, Rinella M, Schiano TD, Lucey MR, and Terrault N
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- Alcohol Abstinence, Alcohol Drinking adverse effects, Alcohol Drinking epidemiology, Humans, Recurrence, Retrospective Studies, Hepatitis, Alcoholic surgery, Liver Transplantation adverse effects
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Background & Aims: Early liver transplantation (LT) for alcoholic hepatitis (AH) is lifesaving but concerns regarding return to harmful alcohol use remain. We sought to identify distinct patterns of alcohol use post-LT to inform pre-LT candidate selection and post-LT addiction care., Methods: Detailed post-LT alcohol use data was gathered retrospectively from consecutive patients with severe AH at 11 ACCELERATE-AH sites from 2006-2018. Latent class analysis identified longitudinal patterns of alcohol use post-LT. Logistic and Cox regression evaluated associations between patterns of alcohol use with pre-LT variables and post-LT survival. A microsimulation model estimated the effect of selection criteria on overall outcomes., Results: Of 153 LT recipients, 1-, 3-, and 5-year survival were 95%, 88% and 82%. Of 146 LT recipients surviving to home discharge, 4 distinct longitudinal patterns of post-LT alcohol use were identified: Pattern 1 [abstinent](n = 103; 71%), pattern 2 [late/non-heavy](n = 9; 6.2%), pattern 3 [early/non-heavy](n = 22; 15%), pattern 4 [early/heavy](n = 12; 8.2%). One-year survival was similar among the 4 patterns (100%), but patients with early post-LT alcohol use had lower 5-year survival (62% and 53%) compared to abstinent and late/non-heavy patterns (95% and 100%). Early alcohol use patterns were associated with younger age, multiple prior rehabilitation attempts, and overt encephalopathy. In simulation models, the pattern of post-LT alcohol use changed the average life-expectancy after early LT for AH., Conclusions: A significant majority of LT recipients for AH maintain longer-term abstinence, but there are distinct patterns of alcohol use associated with higher risk of 3- and 5-year mortality. Pre-LT characteristics are associated with post-LT alcohol use patterns and may inform candidate selection and post-LT addiction care., (Copyright © 2022 AGA Institute. Published by Elsevier Inc. All rights reserved.)
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- 2022
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18. Extensive Health Care Utilization and Costs of an Early Liver Transplantation Program for Alcoholic Hepatitis.
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Im GY, Vogel AS, Florman S, Nahas J, Friedman SL, Aqui S, Ford L, Mirza O, Kim-Schluger L, and Schiano TD
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- Databases, Factual, Delivery of Health Care, Humans, Patient Acceptance of Health Care, Hepatitis, Alcoholic diagnosis, Hepatitis, Alcoholic surgery, Liver Transplantation adverse effects
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Early liver transplantation (LT) for severe alcoholic hepatitis (AH) is a rescue therapy for highly selected patients with favorable psychosocial profiles not responding to medical therapy. Given the expected increase of AH candidate referrals requiring complex care and comprehensive evaluations, increased workload and cost might be expected from implementing an early LT program for AH but have not been determined. Some centers may also view AH as a strategy to expeditiously increase LT volume and economic viability. The aim of this study was to determine the health care use and costs of an early LT program for AH. Analyses of prospective databases of AH, interhospital transfers, and the hospital accounting system at a single center were performed from July 2011 to July 2016. For 5 years, 193 patients with severe AH were evaluated at our center: 143 newly referred transfers and 50 direct admissions. Annual increases of 13% led to 2 to 3 AH transfers/month and AH becoming the top reason for transfer. There were 169 (88%) nonresponders who underwent psychosocial evaluations; 15 (9%) underwent early LT. The median cost of early LT was $297,422, which was highly correlated with length of stay (r = 0.83; P < 0.001). Total net revenue of the program from LT admission to 90 days after LT was -$630,305 (-5.0% revenue), which was inversely correlated with MELD score (r = -0.70; P = 0.004) and yielded lower revenue than a contemporaneous LT program for acute-on-chronic liver failure (ACLF; $118,168; 1.4% revenue; P = 0.001). The health care use and costs of an early LT program for AH are extensive and lifesaving with marginally negative net revenue. Significantly increasing care of severe AH patients over 5 years resulted in increased LT volume, but at a lower rate than ACLF, and without improving economic outcomes due to high MELD and prolonged length of stay., (Copyright © 2021 American Association for the Study of Liver Diseases.)
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- 2022
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19. Joining the Fight: Enhancing Alcohol Treatment Education in Hepatology.
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Winters AC, Aby ES, Fix OK, German M, Haque LYK, and Im GY
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- 2021
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20. Provider Attitudes and Practices for Alcohol Screening, Treatment, and Education in Patients With Liver Disease: A Survey From the American Association for the Study of Liver Diseases Alcohol-Associated Liver Disease Special Interest Group.
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Im GY, Mellinger JL, Winters A, Aby ES, Lominadze Z, Rice J, Lucey MR, Arab JP, Goel A, Jophlin LL, Sherman CB, Parker R, Chen PH, Devuni D, Sidhu S, Dunn W, Szabo G, Singal AK, and Shah VH
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- Attitude, Humans, Public Opinion, Surveys and Questionnaires, United States, Alcoholism complications, Alcoholism diagnosis, Alcoholism therapy, Liver Diseases
- Abstract
Background & Aims: While abstinence-promoting behavioral and pharmacotherapies are part of the therapeutic foundation for alcohol use disorder (AUD) and alcohol-associated liver disease (ALD), these therapies, along with alcohol screening and education, are often underutilized. Our aim was to examine provider attitudes and practices for alcohol screening, treatment and education in patients with liver disease., Methods: We conducted a survey of primarily (89%) hepatology and gastroenterology providers within (80%) and outside the United States (20%). Surveys were sent to 921 providers with 408 complete responses (44%), of whom 343 (80%) work in a tertiary liver transplant center., Results: While alcohol screening rates in liver disease patients was nearly universal, less than half of providers reported practicing with integrated addiction providers, using alcohol biomarkers and screening tools. Safe alcohol use by liver disease patients was felt to exist by 40% of providers. While 60% of providers reported referring AUD patients for behavioral therapy, 71% never prescribed AUD pharmacotherapy due to low comfort (84%). Most providers (77%) reported low addiction education and 90% desired more during GI/hepatology fellowship training. Amongst prescribers, baclofen was preferred, but with gaps in pharmacotherapy knowledge. Overall, there was low adherence to the 2019 AASLD practice guidance for ALD, although higher in hepatologists and experienced providers., Conclusions: While our survey of hepatology and gastroenterology providers demonstrated higher rates of alcohol screening and referrals for behavioral therapy, we found low rates of prescribing AUD pharmacotherapy due to knowledge gaps from insufficient education. Further studies are needed to assess interventions to improve provider alignment with best practices for treating patients with AUD and ALD., (Copyright © 2021 AGA Institute. Published by Elsevier Inc. All rights reserved.)
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- 2021
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21. Current and Future Biomarkers in Alcoholic Hepatitis.
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Rutledge SM and Im GY
- Subjects
- Biomarkers, Humans, Gastrointestinal Microbiome, Hepatitis, Alcoholic diagnosis, MicroRNAs genetics
- Abstract
Alcoholic hepatitis (AH) is a clinical syndrome of jaundice, abdominal pain, and anorexia due to prolonged heavy alcohol intake, and is associated with alterations in gene expression, cytokines, immune response, and the gut microbiome. Currently, we have limited biomarkers to diagnose and prognosticate in AH, but there are many novel noninvasive biomarkers under development. We evaluate the currently used algorithms to risk-stratify in AH (such as the Maddrey modified discriminant function), and discuss novel biomarkers in development, such as breath biomarkers, microRNAs, cytokeratin-18 fragments, and the AshTest. We also review the characteristics of an ideal biomarker in AH., (Copyright © 2021 Elsevier Inc. All rights reserved.)
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- 2021
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22. COVID-19 Aftershocks on Alcohol-Associated Liver Disease: An Early Cross-Sectional Report From the U.S. Epicenter.
- Author
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Rutledge SM, Schiano TD, Florman S, and Im GY
- Abstract
Experts have forewarned about the coronavirus disease 2019 (COVID-19) pandemic environment fomenting the rising incidence of alcohol use disorder (AUD) and alcohol-associated liver disease (ALD). We performed a cross-sectional study of ALD at our liver transplantation (LT) center, located in the initial U.S. epicenter, New York City. Centered around the "stay at home" order date in New York state, March 22, 2020, we defined three time periods: "pre-COVID" (January 1, 2020-March 21, 2020), "COVID-quarantine" (March 22, 2020-April 22, 2020), and "declining-COVID" (April 23, 2020-August 25, 2020). We found a 62% increase in interhospital patient transfers for ALD from pre-COVID (20 of 93, 21%) to the declining-COVID period (43 of 127, 34%). Our inpatient liver census with ALD also increased: 38% pre-COVID, 45% COVID-quarantine, and 49% declining-COVID. Among 30 patients with severe alcoholic hepatitis (AH) not responding to medical therapy since March 22, 2020, 9 underwent early LT for AH (16% of the total number of early LT during our 8-year program). Three of 9 early-LT recipients reported specific COVID-related stressors. All 25 previous LT recipients with established abstinence pre-COVID maintained abstinence at follow-up visits during the declining-COVID period. Of the 6 recipients with sustained alcohol use within 6 months before March 22, 2020, half regained abstinence during the declining-COVID period. Our findings help confirm the predictions of rising AUD and ALD as an immediate consequence of the COVID-19 pandemic. This aftershock particularly affected ethnically diverse patients with ALD with high inpatient mortality, reflecting the disproportionate impact of COVID-19 on underserved and minority populations. Alcohol relapse did not occur in long-term early LT for AH recipients during the time of COVID-19. This lends further support to AH being a viable indication for LT, with recipients able to demonstrate ongoing resilience in the face of this unprecedented universal stressor., (© 2021 The Authors. Hepatology Communications published by Wiley Periodicals LLC on behalf of American Association for the Study of Liver Diseases.)
- Published
- 2021
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23. A protocol for the management of hyponatremia peri-liver transplant reduces post-transplant neurological complications.
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Crismale JF, Huisman T, Deshpande R, Law C, Im GY, Bronster D, DeMaria S Jr, Florman S, and Schiano TD
- Subjects
- Adult, Humans, Retrospective Studies, Risk Factors, Sodium, Hyponatremia, Liver Transplantation
- Abstract
Rapid changes in serum sodium (ΔSNa) peri-liver transplant (LT) predispose to post-LT neurological complications (NC). We aimed to assess whether implementation of a protocol directed at limiting peri-LT ΔSNa reduced post-LT NC. A retrospective single-center review of adult LT recipients from 1/2016 to 10/2017 was performed. Patients with hyponatremia (SNa < 135 mEq/L) within 7 days of LT were analyzed in two eras: pre-protocol (1/2016-9/2016) and post-protocol (10/2016-10/2017). The primary outcome was the development of NC within 1 month of LT. Perioperative ΔSNa (ΔSNaPost-LT) was assessed as a secondary outcome. Among 85 and 107 patients who underwent LT pre- and post-protocol, 39 (46%) and 42 (39%) were hyponatremic within 7 days of LT, respectively. Significantly fewer patients in the post-protocol era developed NC vs. pre-protocol (7.1% vs. 25.6%, p = .02). Additionally, fewer LT recipients in the post-protocol era developed ΔSNaPost-LT ≥ 10 mEq/L (9.5% vs. 30.7%, p = .02). Intraoperatively, more patients post-protocol received hypotonic saline (33.3% vs. 2.6%, p < .01). Multivariable logistic regression revealed that transplantation in the post-protocol era was associated with significantly reduced odds (odds ratio 0.11, 95% confidence interval 0.01-0.50) of developing NC. In conclusion, the implementation of a multidisciplinary protocol aimed at reducing ΔSNa peri-LT was independently associated with a reduction in post-LT NC., (© 2021 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)
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- 2021
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24. Kinetic patterns of liver enzyme elevation with COVID-19 in the USA.
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Da BL, Mitchell RA, Lee BT, Perumalswami P, Im GY, Agarwal R, Schiano TD, Dieterich D, and Saberi B
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- Adult, Biomarkers blood, COVID-19, Comorbidity, Coronavirus Infections blood, Coronavirus Infections complications, Female, Humans, Incidence, Liver Diseases enzymology, Male, Middle Aged, Pandemics, Pneumonia, Viral blood, Pneumonia, Viral complications, SARS-CoV-2, United States epidemiology, Alanine Transaminase blood, Aspartate Aminotransferases blood, Betacoronavirus, Coronavirus Infections epidemiology, Liver Diseases etiology, Pneumonia, Viral epidemiology
- Abstract
COVID-19 is a global pandemic that started in Wuhan, China. COVID-19 related liver enzyme elevations have been described however the clinical presentation, enzyme kinetics, and associated laboratory abnormalities of these patients have not been well described. Five cases of COVID-19 associated liver enzyme elevations are reported here. We found that COVID-19 related liver enzyme elevations occurred in a hepatocellular pattern and persisted throughout the initial hospitalization in all patients. Abnormalities in lactate dehydrogenase and ferritin levels were seen in all five cases. In conclusion, abnormalities in aminotransferase, lactate dehydrogenase, and ferritin levels are commonly seen in COVID-19 related liver injury. Elevated aminotransferase levels often persist throughout the entire hospitalization. However, the clinical course of COVID-19 related liver injury appears benign.
- Published
- 2020
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25. COVID-19 in Liver Transplant Recipients: An Initial Experience From the US Epicenter.
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Lee BT, Perumalswami PV, Im GY, Florman S, and Schiano TD
- Subjects
- COVID-19, Humans, SARS-CoV-2, Transplant Recipients, Betacoronavirus, Coronavirus Infections, Liver Transplantation, Pandemics, Pneumonia, Viral
- Published
- 2020
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26. Coronavirus Disease 2019 Hangover: A Rising Tide of Alcohol Use Disorder and Alcohol-Associated Liver Disease.
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Da BL, Im GY, and Schiano TD
- Subjects
- Alcohol Drinking, Alcoholism therapy, COVID-19 prevention & control, Humans, Liver Diseases, Alcoholic therapy, Liver Transplantation, Physical Distancing, Telemedicine, Alcoholism complications, COVID-19 etiology, Liver Diseases, Alcoholic complications, SARS-CoV-2
- Abstract
The coronavirus disease 2019 (COVID-19) pandemic has had a tremendous global impact since it began in November of 2019. However, there are concerns that the COVID-19 pandemic will not affect all equally and that some populations will be particularly vulnerable. Relevant to liver disease, patients with alcohol use disorder (AUD) and alcohol-associated liver disease (ALD) may be among the populations that are the most severely impacted. The reasons for this include being at a higher risk of severe COVID-19 infection due to a depressed immune system and high-risk underlying comorbidities, the injurious effect of COVID-19 on the liver, the inability to attend regular visits with providers, diversion of hospital resources, and social isolation leading to psychological decompensation and increased drinking or relapse. As a result, we fear that there will be a dramatic rising tide of alcohol relapse, admissions for decompensated ALD, and an increase in newly diagnosed patients with AUD/ALD post-COVID-19 pandemic. Providers and their institutions should implement preemptive strategies such as telehealth and aggressive patient outreach programs now to curb this anticipated problem. Liver transplantation (LT) centers should adapt to the pandemic by considering leniency to some LT candidates with ALD who cannot access appropriate alcohol treatment due to the current situation. In conclusion, the COVID-19 pandemic will likely be especially detrimental to patients with AUD/ALD, and actions need to be taken now to limit the scope of this anticipated problem., (© 2020 by the American Association for the Study of Liver Diseases.)
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- 2020
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27. Debate on Selection Criteria for Liver Transplantation for Alcoholic Hepatitis: Tighten or Loosen?
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Im GY and Neuberger J
- Subjects
- Alcohol Abstinence, Humans, Patient Selection, Alcoholism, Hepatitis, Alcoholic diagnosis, Hepatitis, Alcoholic surgery, Liver Diseases, Alcoholic, Liver Transplantation adverse effects
- Abstract
Although liver transplantation (LT) for alcohol-associated liver disease (ALD) is a well-accepted practice, LT for severe alcoholic hepatitis (AH) remains controversial due to concerns about the limited organ supply and the risk of return to harmful drinking. Recognizing an increasing body of favorable evidence, a convergence of practice guideline recommendations from leading hepatology and gastroenterology societies have suggested that the length of abstinence should not be a sole criterion for LT selection and, thus, that LT may be considered in carefully selected severe AH patients with favorable psychosocial profiles not responding to medical therapy. We sought to examine this new consensus in greater detail, debating whether candidate selection criteria for LT in AH should be tightened or loosened., (Copyright © 2020 by the American Association for the Study of Liver Diseases.)
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- 2020
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28. Diagnosis and Treatment of Alcohol-Associated Liver Diseases: 2019 Practice Guidance From the American Association for the Study of Liver Diseases.
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Crabb DW, Im GY, Szabo G, Mellinger JL, and Lucey MR
- Subjects
- Acute-On-Chronic Liver Failure diagnosis, Acute-On-Chronic Liver Failure therapy, Adult, Alcoholism complications, Alcoholism epidemiology, Alcoholism therapy, Behavior Therapy, Biomarkers analysis, Body Mass Index, Fatty Liver, Alcoholic diagnosis, Fatty Liver, Alcoholic therapy, Female, Hepatitis, Alcoholic diagnosis, Hepatitis, Alcoholic therapy, Humans, Liver Cirrhosis, Alcoholic diagnosis, Liver Cirrhosis, Alcoholic therapy, Liver Diseases, Alcoholic epidemiology, Liver Transplantation, Male, Nutrition Therapy, Prognosis, Recurrence, Risk Factors, United States epidemiology, Liver Diseases, Alcoholic diagnosis, Liver Diseases, Alcoholic therapy
- Published
- 2020
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29. Introducing the 2019 American Association for the Study of Liver Diseases Guidance on Alcohol-Associated Liver Disease.
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Lucey MR, Im GY, Mellinger JL, Szabo G, and Crabb DW
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- Alcohol Drinking, Humans, United States epidemiology, Liver Diseases etiology, Liver Diseases, Alcoholic epidemiology, Liver Transplantation
- Published
- 2020
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30. Model to Calculate Harms and Benefits of Early vs Delayed Liver Transplantation for Patients With Alcohol-Associated Hepatitis.
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Lee BP, Samur S, Dalgic OO, Bethea ED, Lucey MR, Weinberg E, Hsu C, Rinella ME, Im GY, Fix OK, Therapondos G, Han H, Victor DW, Voigt MD, Eswaran S, Terrault NA, and Chhatwal J
- Subjects
- Adult, Alcohol Abstinence, Alcohol Drinking adverse effects, Alcohol Drinking prevention & control, End Stage Liver Disease diagnosis, End Stage Liver Disease etiology, End Stage Liver Disease mortality, Female, Hepatitis, Alcoholic complications, Hepatitis, Alcoholic diagnosis, Hepatitis, Alcoholic mortality, Humans, Life Expectancy, Liver Transplantation standards, Male, Middle Aged, Prospective Studies, Risk Assessment methods, Severity of Illness Index, Survival Analysis, Time Factors, Treatment Outcome, Waiting Lists, End Stage Liver Disease surgery, Hepatitis, Alcoholic surgery, Liver Transplantation methods, Models, Biological, Time-to-Treatment
- Abstract
Background & Aims: Early liver transplantation (without requiring a minimum period of sobriety) for severe alcohol-associated hepatitis (AH) is controversial: many centers delay eligibility until a specific period of sobriety (such as 6 months) has been achieved. To inform ongoing debate and policy, we modeled long-term outcomes of early vs delayed liver transplantation for patients with AH., Methods: We developed a mathematical model to simulate early vs delayed liver transplantation for patients with severe AH and different amounts of alcohol use after transplantation: abstinence, slip (alcohol use followed by sobriety), or sustained use. Mortality of patients before transplantation was determined by joint-effect model (based on Model for End-Stage Liver Disease [MELD] and Lille scores). We estimated life expectancies of patients receiving early vs delayed transplantation (6-month wait before placement on the waitlist) and life years lost attributable to alcohol use after receiving the liver transplant., Results: Patients offered early liver transplantation were estimated to have an average life expectancy of 6.55 life years, compared with an average life expectancy of 1.46 life years for patients offered delayed liver transplantation (4.49-fold increase). The net increase in life expectancy from offering early transplantation was highest for patients with Lille scores of 0.50-0.82 and MELD scores of 32 or more. Patients who were offered early transplantation and had no alcohol use afterward were predicted to survive 10.85 years compared with 3.62 years for patients with sustained alcohol use after transplantation (7.23 life years lost). Compared with delayed transplantation, early liver transplantation increased survival times in all simulated scenarios and combinations of Lille and MELD scores., Conclusions: In a modeling study of assumed carefully selected patients with AH, early vs delayed liver transplantation (6 months of abstinence from alcohol before transplantation) increased survival times of patients, regardless of estimated risk of sustained alcohol use after transplantation. These findings support early liver transplantation for patients with severe AH. The net increase in life expectancy was maintained in all simulated extreme scenarios but should be confirmed in prospective studies. Sustained alcohol use after transplantation significantly reduced but did not eliminate the benefits of early transplantation. Strategies are needed to prevent and treat posttransplantation use of alcohol., (Copyright © 2019 AGA Institute. Published by Elsevier Inc. All rights reserved.)
- Published
- 2019
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31. Obesity in acute alcoholic hepatitis increases morbidity and mortality.
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Parker R, Kim SJ, Im GY, Nahas J, Dhesi B, Vergis N, Sinha A, Ghezzi A, Rink MR, McCune A, Aithal GP, Newsome PN, Weston CJ, Holt A, and Gao B
- Subjects
- Adipocytes drug effects, Adipocytes metabolism, Adipose Tissue drug effects, Adiposity drug effects, Animals, Cohort Studies, Diet, High-Fat adverse effects, Female, Gene Expression Regulation genetics, Hepatitis, Alcoholic complications, Hepatitis, Alcoholic physiopathology, Humans, Liver drug effects, Liver pathology, Male, Mice, Morbidity, Obesity complications, Obesity pathology, Adiposity genetics, Chemokine CXCL11 genetics, Hepatitis, Alcoholic genetics, Obesity genetics
- Abstract
Background: Alcohol and obesity synergise to increase the risk of liver-related mortality. We examined the influence of adiposity on clinical outcomes in alcoholic hepatitis (AH) and the underlying inflammatory crosstalk between adipose tissue (AT) and the liver., Methods: A cohort of 233 patients with AH from the UK and USA provided data to analyse the effects of obesity in AH. Body mass index was corrected for the severity of ascites, termed cBMI. Inflammatory and metabolic profiling was undertaken by proteome analysis of human serum samples. The effect of alcohol on adipose tissue and CXCL11 expression was studied in 3 T3-derived adipocytes and in mice using the high-fat diet-plus-binge ethanol model., Findings: Obesity was common amongst patients with AH, seen in 19% of individuals. Obesity (HR 2.22, 95%CI 1.1-4.3, p = .022) and underweight (HR 2.38, 1.00-5.6, p = .049) were independently associated with mortality at 3 months. Proteome analysis demonstrated multiple metabolic and inflammatory factors differentially expressed in obese AH verse lean AH, with CXCL11 being the most elevated factor in obese AH. In vitro analysis of cultured adipocytes and in vivo analysis of mouse models showed that alcohol induced CXCL11 expression in AT, but not in liver., Interpretation: Obesity is common in AH and associated with a greater than two-fold increase in short-term mortality. Obese AH is associated with a different inflammatory phenotype, with the greatest elevation in CXCL11. These data confirm that adiposity is clinically important in acute alcohol-related liver disease and illustrate the adipose-liver inflammatory axis in AH. FUND: This work was supported in part by an EASL Sheila Sherlock Physician Scientist Fellowship. The funder played no role in gathering or analysing data or writing the manuscript. This paper presents independent research supported by the NIHR Birmingham Biomedical Research Centre at the University Hospitals Birmingham NHS Foundation Trust and the University of Birmingham. The views expressed are those of the author(s) and not necessarily those of the NHS, the NIHR or the Department of Health and Social Care., (Copyright © 2019. Published by Elsevier B.V.)
- Published
- 2019
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32. Outcomes of Liver Transplantation for Severe Alcohol-Related Hepatitis.
- Author
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Im GY
- Published
- 2019
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33. Underestimation of Liver Transplantation for Alcoholic Hepatitis in the National Transplant Database.
- Author
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Lee BP, Im GY, Rice JP, Weinberg E, Hsu C, Fix OK, Therapondos G, Han H, Victor DW, Eswaran S, Maddur H, and Terrault NA
- Subjects
- Adult, Diagnostic Errors, Female, Hepatitis, Alcoholic diagnosis, Hepatitis, Alcoholic epidemiology, Humans, Liver Cirrhosis, Alcoholic diagnosis, Liver Cirrhosis, Alcoholic epidemiology, Liver Transplantation standards, Male, Medical Records statistics & numerical data, Middle Aged, Retrospective Studies, United States epidemiology, Clinical Coding statistics & numerical data, Databases, Factual statistics & numerical data, Hepatitis, Alcoholic surgery, Liver Cirrhosis, Alcoholic surgery, Liver Transplantation statistics & numerical data
- Abstract
Alcohol-associated liver disease (ALD) can be coded in United Network for Organ Sharing (UNOS) as either alcoholic cirrhosis or alcoholic hepatitis (AH), without having specific criteria to assign either diagnosis. In this multicenter American Consortium of Early Liver Transplantation for Alcoholic Hepatitis (ACCELERATE-AH) study, we sought to assess the concordance of the clinician diagnosis of AH at liver transplantation (LT) listing versus UNOS data entry of AH as listing diagnosis. In a prior study, consecutive early LT recipients transplanted for AH between 2012 and 2017 were identified by chart review at 10 ACCELERATE-AH sites. In this current study, these same LT recipients were identified in the UNOS database. The primary UNOS diagnostic code was evaluated for concordance with the chart-review assignment of AH. In cases where the primary listing diagnosis in UNOS was not AH, we determined the reason for alternate classification. Among 124 ACCELERATE-AH LT recipients with a chart-review diagnosis of AH, only 43/124 (35%) had AH as listing diagnosis in UNOS; 80 (64%) were listed as alcoholic cirrhosis, and 1 (1%) as fulminant hepatic necrosis. Of the 81 patients missing AH as a UNOS listing diagnosis code, the reasons for alternate classification were 44 (54%) due to a lack of awareness of a separate diagnosis code for AH; 13 (16%) due to concomitant clinical diagnosis of AH and alcoholic cirrhosis in the chart; 12 (15%) due to clinical uncertainty regarding the diagnosis of AH versus acute decompensated alcoholic cirrhosis; and 12 (15%) due to a data entry error. In conclusion, in a large cohort of LT recipients with AH, only 35% were documented as such in UNOS. Increased education and awareness for those performing UNOS data entry, the establishment of specific criteria to define AH in the UNOS database, and the ability to document dates of alcohol use would allow future research on ALD to be more informative., (Copyright © 2019 by the American Association for the Study of Liver Diseases.)
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- 2019
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34. Predicting Low Risk for Sustained Alcohol Use After Early Liver Transplant for Acute Alcoholic Hepatitis: The Sustained Alcohol Use Post-Liver Transplant Score.
- Author
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Lee BP, Vittinghoff E, Hsu C, Han H, Therapondos G, Fix OK, Victor DW, Dronamraju D, Im GY, Voigt MD, Rice JP, Lucey MR, Eswaran S, Chen PH, Li Z, Maddur H, and Terrault NA
- Subjects
- Adult, Cohort Studies, Female, Humans, Logistic Models, Male, Middle Aged, Risk Assessment, Alcohol Drinking, Hepatitis, Alcoholic surgery, Liver Transplantation, Postoperative Complications
- Abstract
Early liver transplant (LT) for alcohol-associated disease (i.e., without a specific sobriety period) is controversial but increasingly used. Using the multicenter American Consortium of Early Liver Transplantation for Alcoholic Hepatitis (ACCELERATE-AH) cohort, we aimed to develop a predictive tool to identify patients pretransplant with low risk for sustained alcohol use posttransplant to inform selection of candidates for early LT. We included consecutive ACCELERATE-AH LT recipients between 2012 and 2017. All had clinically diagnosed severe alcoholic hepatitis (AH), no prior diagnosis of liver disease or AH, and underwent LT without a specific sobriety period. Logistic and Cox regression, classification and regression trees (CARTs), and least absolute shrinkage and selection operator (LASSO) regression were used to identify variables associated with sustained alcohol use post-LT. Among 134 LT recipients for AH with median period of alcohol abstinence pre-LT of 54 days, 74% were abstinent, 16% had slips only, and 10% had sustained alcohol use after a median 1.6 (interquartile range [IQR]: 0.7-2.8) years follow-up post-LT. Four variables were associated with sustained use of alcohol post-LT, forming the Sustained Alcohol Use Post-LT (SALT) score (range: 0-11): >10 drinks per day at initial hospitalization (+4 points), multiple prior rehabilitation attempts (+4 points), prior alcohol-related legal issues (+2 points), and prior illicit substance abuse (+1 point). The C statistic was 0.76 (95% confidence interval [CI]: 0.68-0.83). A SALT score ≥5 had a 25% positive predictive value (95% CI: 10%-47%) and a SALT score of <5 had a 95% negative predictive value (95% CI: 89%-98%) for sustained alcohol use post-LT. In internal cross-validation, the average C statistic was 0.74. Conclusion: A prognostic score, the SALT score, using four objective pretransplant variables identifies candidates with AH for early LT who are at low risk for sustained alcohol use posttransplant. This tool may assist in the selection of patients with AH for early LT or in guiding risk-based interventions post-LT., (© 2018 by the American Association for the Study of Liver Diseases.)
- Published
- 2019
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35. Liver transplantation for alcoholic hepatitis.
- Author
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Im GY, Cameron AM, and Lucey MR
- Subjects
- Adult, Female, History, 20th Century, History, 21st Century, Humans, Male, Middle Aged, Pilot Projects, Survival Rate, Treatment Outcome, Alcohol Abstinence, Hepatitis, Alcoholic mortality, Hepatitis, Alcoholic surgery, Liver Transplantation history, Patient Selection
- Abstract
While liver transplantation (LT) has become a standard therapy for life-threatening alcohol related cirrhosis, LT as a treatment for severe alcoholic hepatitis (AH) has remained a taboo owing to concerns about the limited organ supply and the risk that the AH liver recipient will return to harmful drinking. The adoption of a 6-month abstinence requirement (the so-called '6-month rule') by many centres made AH a contraindication to LT. Given the high short-term mortality of severe AH, the lack of effective medical therapies and an increasing recognition that the 6-month rule unfairly excluded otherwise favourable candidates, a seminal European pilot study of LT for AH was performed. The success of the European study, which has been corroborated in retrospective analyses from the United States, represented a paradigm shift in therapy for highly selected patients with severe AH who are not responding to medical therapy. However, prospective studies are urgently needed to resolve the controversies that still surround the criteria for selection of patients with AH for LT and the long-term outcomes of the associated alcohol use disorder., (Copyright © 2018 European Association for the Study of the Liver. Published by Elsevier B.V. All rights reserved.)
- Published
- 2019
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36. Acute Alcoholic Hepatitis.
- Author
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Im GY
- Subjects
- Acute Disease, Biopsy, Elasticity Imaging Techniques, Glucocorticoids therapeutic use, Hepatitis, Alcoholic diagnosis, Hepatitis, Alcoholic drug therapy, Hepatitis, Alcoholic pathology, Humans, Liver pathology, Prednisolone therapeutic use, Prognosis, Severity of Illness Index, Alanine Transaminase metabolism, Aspartate Aminotransferases metabolism, Hepatitis, Alcoholic metabolism, Jaundice metabolism
- Abstract
Alcoholic hepatitis is a unique type of alcohol-associated liver disease characterized by acute liver inflammation caused by prolonged heavy alcohol use. Treatment is mostly supportive. The short-term prognosis of acute alcoholic hepatitis depends on liver recovery, and ranges widely from rapid improvement to grim multiorgan failure despite treatment. Refinement of scoring systems have enhanced prognostication to guide clinical decision making in alcoholic hepatitis. Recent advances in the treatment of alcoholic hepatitis have solidified corticosteroids as the cornerstone of treatment to enhance short-term survival, but not intermediate or long-term survival., (Copyright © 2018 Elsevier Inc. All rights reserved.)
- Published
- 2019
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37. Reply.
- Author
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Lee BP, Im GY, Lucey MR, and Terrault NA
- Subjects
- Humans, Hepatitis, Alcoholic
- Published
- 2019
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- View/download PDF
38. Outcomes of Early Liver Transplantation for Patients With Severe Alcoholic Hepatitis.
- Author
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Lee BP, Mehta N, Platt L, Gurakar A, Rice JP, Lucey MR, Im GY, Therapondos G, Han H, Victor DW, Fix OK, Dinges L, Dronamraju D, Hsu C, Voigt MD, Rinella ME, Maddur H, Eswaran S, Hause J, Foley D, Ghobrial RM, Dodge JL, Li Z, and Terrault NA
- Subjects
- Adult, Age Factors, Alcohol Drinking adverse effects, Female, Follow-Up Studies, Humans, Incidence, Liver Diseases, Alcoholic etiology, Liver Diseases, Alcoholic mortality, Liver Transplantation standards, Male, Middle Aged, Recurrence, Retrospective Studies, Risk Factors, Survival Analysis, Time Factors, Treatment Outcome, United States epidemiology, Alcohol Abstinence statistics & numerical data, Alcohol Drinking epidemiology, Liver Diseases, Alcoholic surgery, Liver Transplantation statistics & numerical data, Patient Selection
- Abstract
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., (Copyright © 2018 AGA Institute. Published by Elsevier Inc. All rights reserved.)
- Published
- 2018
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39. Primed for the spotlight: Transplantation for alcohol-associated liver disease.
- Author
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Im GY
- Subjects
- Ethanol, Humans, Alcoholism, Hepatitis, Alcoholic, Liver Diseases, Alcoholic, Liver Transplantation
- Published
- 2018
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40. Early liver transplantation for severe alcoholic hepatitis.
- Author
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Nahas J and Im GY
- Published
- 2018
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41. Combination of Gene Expression Signature and Model for End-Stage Liver Disease Score Predicts Survival of Patients With Severe Alcoholic Hepatitis.
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Trépo E, Goossens N, Fujiwara N, Song WM, Colaprico A, Marot A, Spahr L, Demetter P, Sempoux C, Im GY, Saldarriaga J, Gustot T, Devière J, Thung SN, Minsart C, Sersté T, Bontempi G, Abdelrahman K, Henrion J, Degré D, Lucidi V, Rubbia-Brandt L, Nair VD, Moreno C, Deltenre P, Hoshida Y, and Franchimont D
- Subjects
- Adrenal Cortex Hormones therapeutic use, Adult, Area Under Curve, Belgium, Biopsy, Female, Genetic Markers, Genetic Predisposition to Disease, Hepatitis, Alcoholic drug therapy, Hepatitis, Alcoholic mortality, Humans, Kaplan-Meier Estimate, Male, Middle Aged, Oligonucleotide Array Sequence Analysis, Phenotype, Predictive Value of Tests, Proportional Hazards Models, ROC Curve, Reproducibility of Results, Risk Assessment, Risk Factors, Severity of Illness Index, Time Factors, Treatment Outcome, Decision Support Techniques, Gene Expression Profiling methods, Hepatitis, Alcoholic diagnosis, Hepatitis, Alcoholic genetics, Transcriptome
- Abstract
Background & Aims: Patients with severe alcoholic hepatitis (AH) have a high risk of death within 90 days. Corticosteroids, which can cause severe adverse events, are the only treatment that increases short-term survival. It is a challenge to predict outcomes of patients with severe AH. Therefore, we developed a scoring system to predict patient survival, integrating baseline molecular and clinical variables., Methods: We obtained fixed liver biopsy samples from 71 consecutive patients diagnosed with severe AH and treated with corticosteroids from July 2006 through December 2013 in Brussels, Belgium (derivation cohort). Gene expression patterns were analyzed by microarrays and clinical data were collected for 180 days. We identified gene expression signatures and clinical data that are associated with survival without liver transplantation at 90 and 180 days after initiation of corticosteroid therapy. Findings were validated using liver biopsies from 48 consecutive patients with severe AH treated with corticosteroids, collected from March 2010 through February 2015 at hospitals in Belgium and Switzerland (validation cohort 1) and in liver biopsies from 20 patients (9 received corticosteroid treatment), collected from January 2012 through May 2015 in the United States (validation cohort 2)., Results: We integrated data on expression patterns of 123 genes and the model for end-stage liver disease (MELD) scores to assign patients to groups with poor survival (29% survived 90 days and 26% survived 180 days) and good survival (76% survived 90 days and 65% survived 180 days) (P < .001) in the derivation cohort. We named this assignment system the gene signature-MELD (gs-MELD) score. In validation cohort 1, the gs-MELD score discriminated patients with poor survival (43% survived 90 days) from those with good survival (96% survived 90 days) (P < .001). The gs-MELD score also discriminated between patients with a poor survival at 180 days (34% survived) and a good survival at 180 days (84% survived) (P < .001). The time-dependent area under the receiver operator characteristic curve for the score was 0.86 (95% confidence interval 0.73-0.99) for survival at 90 days, and 0.83 (95% confidence interval 0.71-0.96) for survival at 180 days. This score outperformed other clinical models to predict survival of patients with severe AH in validation cohort 1. In validation cohort 2, the gs-MELD discriminated patients with a poor survival at 90 days (12% survived) from those with a good survival at 90 days (100%) (P < .001)., Conclusions: We integrated data on baseline liver gene expression pattern and the MELD score to create the gs-MELD scoring system, which identifies patients with severe AH, treated or not with corticosteroids, most and least likely to survive for 90 and 180 days., (Copyright © 2018 AGA Institute. Published by Elsevier Inc. All rights reserved.)
- Published
- 2018
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42. Real-world cure rates for hepatitis C virus treatments that include simeprevir and/or sofosbuvir are comparable to clinical trial results.
- Author
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Bichoupan K, Tandon N, Crismale JF, Hartman J, Del Bello D, Patel N, Chekuri S, Harty A, Ng M, Sigel KM, Bansal MB, Grewal P, Chang CY, Leong J, Im GY, Liu LU, Odin JA, Bach N, Friedman SL, Schiano TD, Perumalswami PV, Dieterich DT, and Branch AD
- Abstract
Aim: To assess the real-world effectiveness and cost of simeprevir (SMV), and/or sofosbuvir (SOF)-based therapy for chronic hepatitis C virus (HCV) infection., Methods: The real-world performance of patients treated with SMV/SOF ± ribavirin (RBV), SOF/RBV, and SOF/RBV with pegylated-interferon (PEG) were analyzed in a consecutive series of 508 patients with chronic HCV infection treated at a single academic medical center. Patients with genotypes 1 through 4 were included. Rates of sustained virological response - the absence of a detectable serum HCV RNA 12 wk after the end of treatment [sustained virological response (SVR) 12] - were calculated on an intention-to-treat basis. Costs were calculated from the payer's perspective using Medicare/Medicaid fees and Redbook Wholesale Acquisition Costs. Patient-related factors associated with SVR12 were identified using multivariable logistic regression., Results: SVR12 rates were as follows: 86% (95%CI: 80%-91%) among 178 patients on SMV/SOF ± RBV; 62% (95%CI: 55%-68%) among 234 patients on SOF/RBV; and 78% (95%CI: 68%-86%) among 96 patients on SOF/PEG/RBV. Mean costs-per-SVR12 were $174442 (standard deviation: ± $18588) for SMV/SOF ± RBV; $223003 (± $77946) for SOF/RBV; and $126496 (± $31052) for SOF/PEG/RBV. Among patients on SMV/SOF ± RBV, SVR12 was less likely in patients previously treated with a protease inhibitor [odds ratio (OR): 0.20, 95%CI: 0.06-0.56]. Higher bilirubin (OR: 0.47, 95%CI: 0.30-0.69) reduced the likelihood of SVR12 among patients on SOF/RBV, while FIB-4 score ≥ 3.25 reduced the likelihood of SVR12 (OR: 0.18, 95%CI: 0.05-0.59) among those on SOF/PEG/RBV., Conclusion: SVR12 rates for SMV and/or SOF-based regimens in a diverse real-world population are comparable to those in clinical trials. Treatment failure accounts for 27% of costs., Competing Interests: Conflict-of-interest statement: Dr. Kian Bichoupan is a paid consultant for Gilead Sciences and Janssen Pharmaceuticals, Inc. Neeta Tandon is an employee of Johnson and Johnson. Dr. Andrea D Branch received research support from Gilead Sciences and Janssen Pharmaceuticals, Inc. Dr. Douglas T Dieterich serves as a paid lecturer, consultant and is a member on scientific advisory boards of companies which either develop or assess medicines used for the treatment of viral hepatitis. These companies include Gilead Sciences, Abbvie, Achillion, Bristol-Myers Squibb, Merck, and Janssen Pharmaceuticals, Inc. Dr. Thomas D Schiano is a paid consultant for Salix, Merck, Gilead, BMS, Novartis and Janssen and received research support from Mass biologics, Gilead, Merck, Biotest and Genentech. Michel Ng is a paid member of AbbVie’s Speakers bureau. Dr. Ponni V Perumalswami receives research support from Gilead Sciences. Dr. Keith M Sigel has served on an advisory board for Gilead Sciences. Dr. James Crismale, Dr Meena B Bansal, Dr. Joshua Hartman, Dr. Sweta Chekuri, Alyson Harty, Dr. Joseph A Odin, Dr. Priya Grewal, Dr. Nancy Bach, Dr. Lawrence Liu, Dr. Charissa Y Chang, Dr. Gene Y Im, Dr. Jennifer Leong, Dr. David Del Bello, Dr. Neal M Patel and Dr. Scott L Friedman do not have any relevant disclosures.
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- 2017
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43. Persisting risk of hepatocellular carcinoma after hepatitis C virus cure monitored by a liver transcriptome signature.
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Ono A, Goossens N, Finn RS, Schmidt WN, Thung SN, Im GY, and Hoshida Y
- Subjects
- Carcinoma, Hepatocellular complications, Hepatitis C, Chronic complications, Humans, Liver Neoplasms complications, Male, Middle Aged, Risk Assessment, Carcinoma, Hepatocellular epidemiology, Hepatitis C, Chronic drug therapy, Hepatitis C, Chronic genetics, Liver Neoplasms epidemiology, Transcriptome
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- 2017
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44. DIC in decompensated cirrhosis caused by prothrombin complex concentrate and recombinant activated factor VII: A word of caution.
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Glass JP and Im GY
- Subjects
- Blood Coagulation Factors, Humans, Liver Cirrhosis, Prothrombin, Recombinant Proteins, Factor VIIa
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- 2017
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45. A Real-World Evaluation of Repeat Paracentesis-guided Management of Spontaneous Bacterial Peritonitis.
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Goel A, Biewald M, Huprikar S, Schiano T, and Im GY
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- Bacterial Infections complications, Bacterial Infections mortality, Cohort Studies, Female, Humans, Male, Middle Aged, New York, Paracentesis, Peritonitis complications, Peritonitis mortality, Reoperation, Retrospective Studies, Survival Analysis, Treatment Failure, Bacterial Infections surgery, Liver Cirrhosis complications, Peritonitis surgery
- Abstract
Background: Spontaneous bacterial peritonitis (SBP) is a common infection in cirrhosis associated with high mortality. More than 20% of patients with SBP do not respond to initial antibiotics. Guidelines differ in recommendations to repeat paracentesis (retap) to confirm antibiotic efficacy. We aim to evaluate the effect of retap-guided management of SBP on antibiotic escalation and 30-day transplant-free survival., Materials and Methods: Retrospective cohort study of cirrhotic patients with SBP admitted to a single transplant center from 2010 to 2014. Patients were divided into 2 groups: retap-guided management versus no retap. Prevalence of initial antibiotic treatment failure, defined as <25% decrease in ascitic polymorphonuclear cells, and factors associated with treatment failure, antibiotic escalation and 30-day transplant-free survival were evaluated., Results: Out of 210 patients, 146 (age 58, 74% male, mean model for end-stage liver disease score, 25) had retap and treatment failure was noted in 28 (22%). Gram-positive bacteria accounted for 44% of all positive cultures and third-generation cepahalosporin resistance was noted in 23%. Thirty-day transplant-free survival was 72% and 62% in retap and control groups, respectively (P=0.07). Treatment failure independently doubled the 30-day mortality rate (hazard ratio: 2.15, 1.03 to 4.50, P=0.04). After adjusting for age, model for end-stage liver disease and nosocomial infection, retap-guided management was not associated with improved survival (P=0.34)., Conclusions: The prevalence of initial treatment failure is high (22%) in patients with SBP and doubles the 30-day mortality risk, supporting recommendations to retap all patients with SBP.
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- 2017
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46. Practical Concerns and Controversies in the Management of Alcoholic Hepatitis.
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Im GY and Lucey MR
- Abstract
Recent advances in the treatment of alcoholic hepatitis (AH) have reinforced the utility of glucocorticoids, a treatment that has been in use for nearly 4 decades, to enhance short-term survival. As multi-institutional consortia research new therapeutic advances, this orphan disease, which afflicts younger patients and has poor outcomes, continues to be difficult to manage. AH has a protean clinical presentation and course, with various prediction models and treatment approaches that can challenge even experienced providers. This review addresses 4 key controversies and other practical issues associated with the diagnosis, prognosis, management, and treatment of patients with AH.
- Published
- 2016
47. Early Liver Transplantation for Severe Alcoholic Hepatitis in the United States--A Single-Center Experience.
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Im GY, Kim-Schluger L, Shenoy A, Schubert E, Goel A, Friedman SL, Florman S, and Schiano TD
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- Adult, Aged, Case-Control Studies, Female, Follow-Up Studies, Graft Survival, Humans, Male, Middle Aged, Prognosis, Prospective Studies, Recurrence, Risk Factors, Survival Rate, Time Factors, Hepatitis, Alcoholic surgery, Liver Transplantation, Patient Selection, Severity of Illness Index
- Abstract
Early liver transplantation (LT) in European centers reportedly improved survival in patients with severe alcoholic hepatitis (AH) not responding to medical therapy. Our aim was to determine if a strategy of early LT for severe AH could be applied successfully in the United States. We reviewed 111 patients with severe AH at our center from January 2012 to January 2015. The primary end point was mortality at 6 months or early LT, with a secondary end point of alcohol relapse after LT. Survival was compared between those receiving early LT and matched patients who did not. Using a process similar to the European trial, 94 patients with severe AH not responding to medical therapy were evaluated for early LT. Overall, 9 (9.6%) candidates with favorable psychosocial profiles underwent early LT, comprising 3% of all adult LT during the study period. The 6-month survival rate was higher among those receiving early LT compared with matched controls (89% vs 11%, p<0.001). Eight recipients are alive at a median of 735 days with 1 alcohol relapse. Early LT for severe AH can achieve excellent clinical outcomes with low impact on the donor pool and low rates of alcohol relapse in highly selected patients in the United States., (© Copyright 2015 The American Society of Transplantation and the American Society of Transplant Surgeons.)
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- 2016
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48. Discovery of IWP-051, a Novel Orally Bioavailable sGC Stimulator with Once-Daily Dosing Potential in Humans.
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Nakai T, Perl NR, Barden TC, Carvalho A, Fretzen A, Germano P, Im GY, Jin H, Kim C, Lee TW, Long K, Moore J, Rohde JM, Sarno R, Segal C, Solberg EO, Tobin J, Zimmer DP, and Currie MG
- Abstract
In recent years, soluble guanylate cyclase (sGC, EC 4.6.1.2) has emerged as an attractive therapeutic target for treating cardiovascular diseases and diseases associated with fibrosis and end-organ failure. Herein, we describe our design and synthesis of a series of 4-hydroxypyrimidine sGC stimulators starting with an internally discovered lead. Our efforts have led to the discovery of IWP-051, a molecule that achieves good alignment of potency, stability, selectivity, and pharmacodynamic effects while maintaining favorable pharmacokinetic properties with once-daily dosing potential in humans.
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- 2016
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49. Surgery in patients with portal hypertension: a preoperative checklist and strategies for attenuating risk.
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Im GY, Lubezky N, Facciuto ME, and Schiano TD
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- Checklist, Contraindications, Elective Surgical Procedures, Humans, Hypertension, Portal physiopathology, Postoperative Complications prevention & control, Preoperative Care, Risk Reduction Behavior, Severity of Illness Index, Hypertension, Portal surgery
- Abstract
Patients with liver disease and portal hypertension are at increased risk of complications from surgery. Recent advances have allowed better optimization of patients with cirrhosis before surgery and a reduction in postoperative complications. Despite this progress, the estimation of surgical risk in a patient with cirrhosis is challenging. The MELD score has shown promise in predicting postoperative mortality compared with the Child-Turcotte-Pugh score. This article addresses current concepts in the perioperative evaluation of patients with liver disease and portal tension, including a preoperative liver assessment (POLA) checklist that may be useful towards mitigating perioperative complications., (Copyright © 2014 Elsevier Inc. All rights reserved.)
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- 2014
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50. Synthesis of diphenylhexatriene by the Pd-catalyzed dimerization of cinnamyl acetate.
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Mesganaw T, Im GY, and Garg NK
- Subjects
- Catalysis, Dimerization, Diphenylhexatriene chemistry, Molecular Structure, Cinnamates chemistry, Diphenylhexatriene chemical synthesis, Organometallic Compounds chemistry, Palladium chemistry
- Abstract
A mild and operationally simple method to synthesize diphenylhexatriene (DPH) is reported. The method relies on the Pd-catalyzed dimerization of cinnamyl acetate and provides efficient access to DPH in a single step.
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- 2013
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