Predicting harmful alcohol relapse after liver transplant: The HALT score

Management of alcohol-associated liver disease and alcohol use disorder in liver transplant candidates and recipients: Challenges and opportunities

Alcohol-associated liver disease poses a significant global health burden, with rising alcohol consumption and prevalence of alcohol use disorder (AUD) contributing to increased morbidity and mortality. This review examines the challenges and opportunities in the care of candidates and recipients of liver transplant (LT) with AUD. Despite advancements in posttransplant patient survival, the risk of disease recurrence and alcohol relapse remains substantial. Several challenges have been identified, including (1) rising disease burden of alcohol-associated liver disease, variable transplant practices, and systemic barriers; (2) disparities in mental health therapy access and the impact on transplant; (3) variable definitions, underdiagnosis, and stigma affecting access to care; and (4) post-LT relapse, its risk factors, and consequential harm. The review focuses on the opportunities to improve AUD care for candidates and recipients of LT through effective biochemical monitoring, behavioral and pharmacologic approaches, creating Centers of Excellence for post-LT AUD care, advocating for policy reforms, and ensuring insurance coverage for necessary services as essential steps toward improving patient outcomes. The review also highlights unmet needs, such as the scarcity of addiction specialists, and calls for further research on personalized behavioral treatments, digital health, and value-based care models to optimize AUD care in the LT setting.

Factors associated with a positive phosphatidylethanol test during liver transplantation evaluation

BACKGROUND

Early identification of alcohol use is crucial for informing recommendations of appropriate follow-up treatment pre-liver transplant and optimizing post-liver transplant outcomes. The purpose of the study was to investigate whether there are psychosocial factors associated with a positive PEth test.

METHODS

All patients who underwent a routine pre-surgical psychological evaluation for liver transplant listing (all etiologies, including acute liver failure, dual organ, and re-transplantation) at a single health care system in 2020 were included in a retrospective chart review. Data extraction included results from PEth testing and information from the psychological evaluation (i.e., demographic, psychiatric symptoms, and cognitive functioning).

RESULTS

There were 158 patients (73.8%) who had a PEth test, of whom 21.5% had a positive result (n = 34). Younger age was associated with a positive PEth (p < .001). ALD status and type of ALD (hepatitis vs. cirrhosis) were also associated with a positive PEth test. Other demographic characteristics and psychiatric symptoms were not associated with a positive PEth result (p > .05).

CONCLUSION

Younger age was the only significant demographic variable associated with a positive PEth test. Given the difficulty of predicting who may be using alcohol, it may be useful to use PEth testing for all patients during the pre-liver transplant evaluation and while patients are listed for liver transplant. Early identification of alcohol use through routine PEth testing will help identify patients who are using alcohol and need further treatment for alcohol use to optimize health and post-transplant outcomes.

Liver transplantation for alcohol-associated hepatitis

PURPOSE OF REVIEW

Early liver transplantation is emerging as a treatment option for severe alcohol-associated hepatitis refractory to pharmacotherapies. This review outlines the current status of transplantation for alcohol-associated hepatitis and the treatment of alcohol use disorder after liver transplantation.

RECENT FINDINGS

Rates of early liver transplantation for alcohol-associated hepatitis are increasing with significant heterogeneity in practices across the Unites States. Recent studies have demonstrated a substantial survival benefit in patients transplanted for alcohol-associated hepatitis with improved outcomes in early vs. late transplantation, first vs. prior hepatic decompensation, and posttransplant abstinence/delayed relapse vs. early return to alcohol use. Several prediction algorithms have been developed to ascertain patients' risk of alcohol relapse and aid in candidate selection, though data on treatment of alcohol use disorders in transplant recipients remains limited.

SUMMARY

Although controversial, early liver transplantation for severe alcohol-associated hepatitis has shown to be a lifesaving intervention. Additional research is needed to evaluate its long-term outcomes, optimize candidate selection, and understand treatment of alcohol use disorder posttransplant.

Main factors influencing long-term outcomes of liver transplantation in 2022

Liver transplant (LT) outcomes have markedly improved in the recent decades, even if long-term morbidity and mortality are still considerable. Most of late deaths are independent from graft function and different comorbidities, including complications of metabolic syndrome and de novo neoplasms, seem to play a key role in determining long-term outcomes in LT recipients. This review discusses the main factors associated with late mortality and suggests possible strategies to improve long-term management and follow-up after liver transplantation. In particular, the reduction of drug toxicity, the use of tools to identify high-risk patients, and setting up a multidisciplinary team also for long-term management of LT recipients may further improve survival after liver transplantation.

Scoring systems to assess relapse risk in alcohol use disorder presenting for early liver transplantation: A systematic review

OBJECTIVE

Early liver transplantation (LT) is considered for patients with alcohol use disorder (AUD) despite limited sober time when acute mortality risk from liver disease is high. The objective of this paper is to find psychosocial tools that do not rely on extended sober time and predict alcohol relapse post-LT.

METHODS

We conducted a systematic review of Pubmed, Embase, and Scopus for studies testing psychosocial tools that used numeric scoring to predict post-LT alcohol relapse. Tools that afforded points for length of sobriety were excluded. Each study was analyzed for its clinical context, post-LT relapse outcomes and predictive validity.

RESULTS

Five scoring systems across fourteen samples showed varied validity in predicting post-LT alcohol relapse. Relapse to any alcohol use after LT revealed an average relapse rate of 23%. Most scoring systems were understudied but four of five provided cut-off scores with high negative predictive values for relapse.

CONCLUSION

Scoring systems may have a place in candidate selection but the data on cut-off scores and predictability are still lacking for their use alone in high stakes LT selection. Larger studies with prospective scoring and standardized follow ups for relapse post-LT will better allow the predictive validity of these psychosocial tools to be compared.

Approaching Alcohol Use Disorder After Liver Transplantation for Acute Alcoholic Hepatitis

Severe alcoholic hepatitis portends a high risk of mortality without liver transplantation. Transplant outcomes in patients with severe alcoholic hepatitis exhibit a strong inverse association with post-transplant alcohol relapse. The ingredients most central to ameliorating alcohol relapse risk may include destigmatized post-transplant alcohol monitoring, a nonpunitive clinician-patient partnership, and multimodal therapies to maintain abstinence and mitigate high-risk drinking. We here review the core principles of post-liver transplant management specific to alcohol use disorder.

Direct Alcohol Biomarkers Prediction Capacity on Relapse and Mortality in Liver Transplantation Candidates: A Follow-Up Study

Liver transplantation is a complex procedure that requires multiple evaluations, including abstinence monitorization. While literature assessing the impact of different variables on relapse, survival, and graft loss exists, little is known about the predictive capacity of direct alcohol biomarkers. The primary aim of this study was to evaluate the prediction capacity of direct alcohol biomarkers regarding patient survival and clinical relapse. We hypothesized that patients screening positive for any of the experimental biomarkers would show an increased risk of clinical alcohol relapse and death. We conducted a retrospective data recollection from medical files of patients awaiting liver transplantation, who were at baseline screened with Peth, EtG in hair and urine, and EtS. We tested the prediction capacity of the biomarkers with two Cox-regression models. A total of 50 patients were included (84% men, mean age 59 years (SD = 6)). Biomarkers at baseline were positive in 18 patients. The mean follow-up time for this study was 26 months (SD = 10.4). Twelve patients died, liver transplantation was carried out in 12 patients, and clinical relapse was observed in eight patients. The only significant covariate in the Cox-regression models was age with clinical relapse, with younger patients being at greater risk of relapse. This study could not find a significant prediction capacity of direct alcohol biomarkers for mortality or clinical relapse during follow-up. Higher sample sizes might be needed to detect statistically significant differences. All in all, we believe that direct alcohol biomarkers should be widely used in liver transplantation settings due to their high sensitivity for the detection of recent drinking.

Risk factors for alcohol use relapse after abstinence in patients with alcoholic liver disease

INTRODUCTION

In patients with alcoholic liver disease, abstinence from alcohol is an important aspect of treatment. Once abstinence is achieved, the challenge is to avoid relapse of alcohol use. This study aims to analyse the significant risk factors for alcohol relapse thereby identifying the patients with high risk for recidivism to have an early social and medical intervention.

METHODOLOGY

This was an observational and a retrospective type of study. Patients with chronic liver disease and had alcohol use relapse after abstinence were classified into Group A. Patients who did not have relapse after abstinence were classified into Group B. The two groups were compared for various social and personal and disease related factors. Student "t" test was used for raw data and Chi square test was used for consolidated data to find significant difference between variables.

RESULTS

Overall nine factors were analysed. The factors which were found to be significant for predicting relapse are quantity of alcohol consumption per week, duration of abstinence, associated smoking, marital status, severity of liver disease (Child-Pugh scoring system). The other factors like age of starting alcohol consumption, duration of alcohol consumption, family history of alcohol intake and MELD score were not statistically significant.

CONCLUSION

This study identifies the risk factors associated with alcohol relapse in patients with alcoholic liver disease. The data from this study can be used to identify individuals who are high risk for relapse and treat them with pharmacological and psychosocial methods to prevent relapse.

Liver Transplantation for Alcohol-Related Liver Disease (ARLD): An Update on Controversies and Considerations

According to the recent data from the United Network for Organ Sharing database, alcohol-related liver disease (ARLD) accounts to be the most common indication of liver transplantation (LT) waiting lists in the United States among men without hepatocellular carcinoma (HCC). Severe alcoholic hepatitis (AH) is serious and the life-threatening form of ARLD and should be treated timely. However, the LT for severe AH remained to be controversial among the transplant community because of marked interests about the constrained organ supply and the hazard that the AH liver recipient will return to risky drinking. Early LT for ARLD refers for a patient with severe AH undergoing LT who are non-responder to medical treatments. These patients are generally on the existing waiting list but usually followed by 6-month duration of alcohol abstinence. However, the rule of 6-month alcohol abstinence need before the LT is ambiguous. The 6-month alcohol abstinence was consistently defended in light of the compelling fact that it would enable patients to recoup from the intense impacts of alcohol to the liver. In routine, however, the purported "6-month abstinence rule" turned into a surrogate for the forecast of future drinking by ARLD patients for the LT. Careful consideration should be given to the alcohol use disorder of craving and the hazard for recidivism after the LT. As for the current situation, there, urgently, is a specific need of standardized criteria for the evaluation of patients with severe AH for earlier LT. Moreover, further studies are required precisely to develop an accurate prediction model for posttransplant alcohol recidivism. Additionally, development of a standardized protocol for post-LT follow-up and management is further needed. We carefully outlined the published experience with the LT for ARLD in this review.