Alcohol and substance use in liver transplant patients

A Comparative Analysis of Two Commonly Used FDA-Approved Immunoassays for Fentanyl Detection

BACKGROUND

Given the opioid epidemic, fentanyl screening in urine has become increasingly important. Immunoassays remain the most common screening methodology due to the high throughput and ease of integration into automated chemistry systems. The fentanyl ARK II from Ark Diagnostics is a widely used immunoassay, while a novel fentanyl assay called FEN2 by Lin-Zhi has become available on the Roche platform. Here, we evaluate and compare their performance.

METHODS

Four hundred and thirty-four urine samples were analyzed for fentanyl across the Lin-Zhi FEN2 and ARK II assays on the Cobas c502 platform. Samples were analyzed immediately upon request for drug of abuse screening or frozen for subsequent analysis. For confirmation testing, a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method with a limit of detection of 1 ng/mL for fentanyl/norfentanyl was used. Any sample with either fentanyl or norfentanyl above the LC-MS/MS cutoff was deemed positive.

RESULTS

The ARK II had 11 false negatives and 7 false positives, while the Lin-Zhi FEN2 had 12 false negatives and 2 false positives. This resulted in ARK II having a sensitivity and specificity of 90.4% and 97.8% respectively, while Lin-Zhi FEN2 had a sensitivity and specificity of 89.5% and 99.4%.

CONCLUSIONS

Both the ARK II and Lin-Zhi FEN2 immunoassays detected fentanyl well. Overall, the Lin-Zhi assay had slightly better specificity than ARK II, in our data set. While some discrepant results were observed between the 2 immunoassay systems, most occurred near the immunoassay detection cutoffs.

Asian Pacific Association for the Study of the Liver clinical practice guidelines on liver transplantation

Liver transplantation is a highly complex and challenging field of clinical practice. Although it was originally developed in western countries, it has been further advanced in Asian countries through the use of living donor liver transplantation. This method of transplantation is the only available option in many countries in the Asia-Pacific region due to the lack of deceased organ donation. As a result of this clinical situation, there is a growing need for guidelines that are specific to the Asia-Pacific region. These guidelines provide comprehensive recommendations for evidence-based management throughout the entire process of liver transplantation, covering both deceased and living donor liver transplantation. In addition, the development of these guidelines has been a collaborative effort between medical professionals from various countries in the region. This has allowed for the inclusion of diverse perspectives and experiences, leading to a more comprehensive and effective set of guidelines.

Alcohol as a risk factor for mortality in liver transplant patients in Sweden

OBJECTIVES

Liver transplantation (LT) is the only available cure for end-stage liver disease and one of the best treatment options for hepatocellular carcinomas (HCC). Patients with known alcohol-associated cirrhosis (AC) are routinely assessed for alcohol dependence or abuse before LT. Patients with other liver diseases than AC may consume alcohol both before and after LT. The aim of this study was to assess the effects of alcohol drinking before and after LT on patient and graft survival regardless of the etiology of liver disease.

MATERIALS AND METHODS

Between April 2012 and December 2015, 200 LT-recipients were interviewed using the Lifetime Drinking History and the Addiction Severity Index questionnaire. Patients were categorized as having AC, n = 24, HCC and/or hepatitis C cirrhosis (HCV), n = 69 or other liver diseases, n = 107. Patients were monitored and interviewed by transplantation-independent staff for two years after LT with questions regarding their alcohol consumption. Patient and graft survival data were retrieved in October 2019.

RESULTS

Patients with AC had an increased hazard ratio (HR) for death after LT (crude HR: 4.05, 95% CI: 1.07-15.33, p = 0.04) and for graft loss adjusted for age and gender (adjusted HR: 3.24, 95% CI 1.08-9.77, p = 0.04) compared to the other patients in the cohort. There was no significant effect of the volume of alcohol consumed before or after LT on graft loss or overall survival.

CONCLUSION

Patients transplanted for AC have a worse prognosis, but we found no correlation between alcohol consumed before or after LT and graft or patient survival.

Management of Substance Use Disorders in a Patient With Left Ventricular Assist Device

We present a case of common challenges in assessment and treatment of substance use disorders in patients with advanced heart failure requiring left ventricular assist device (LVAD). Top experts in the field of consultation-liaison psychiatry, cardiology, and cardiac surgery provide guidance for this commonly encountered clinical case based on their experience and review of the available literature. Key teaching topics include the role of LVAD in heart failure management, the impact of substance use disorder on heart failure and LVAD patient outcomes, and recommendations for assessment and management of substance use disorder in a patient with LVAD. Specifically, we highlight the challenges of assessing for substance use disorder in LVAD candidates and the limited literature available to guide treatment in this challenging patient population.

Medication Treatment of Active Opioid Use Disorder in Veterans With Cirrhosis

INTRODUCTION

Although opioid use disorder (OUD) is common in patients with cirrhosis, it is unclear how medication treatment for OUD (MOUD) is used in this population. We aimed to assess the factors associated with MOUD and mortality in a cohort of Veterans with cirrhosis and OUD.

METHODS

Within the Veterans Health Administration Corporate Data Warehouse, we developed a cohort of Veterans with cirrhosis and active OUD, using 2 outpatient or 1 inpatient International Classification of Diseases, ninth revision codes from 2011 to 2015 to define each condition. We assessed MOUD initiation with methadone or buprenorphine over the 180 days following the first OUD International Classification of Diseases, ninth revision code in the study period. We fit multivariable regression models to assess the association of sociodemographic and clinical factors with receiving MOUD and the associations between MOUD and subsequent clinical outcomes, including new hepatic decompensation and mortality.

RESULTS

Among 5,600 Veterans meeting criteria for active OUD and cirrhosis, 722 (13%) were prescribed MOUD over 180 days of follow-up. In multivariable modeling, MOUD was significantly, positively associated with age (adjusted odds ratio [AOR] per year: 1.04, 95% confidence interval (CI): 1.01-1.07), hepatitis C virus (AOR = 2.15, 95% CI = 1.37-3.35), and other substance use disorders (AOR = 1.47, 95% CI = 1.05-2.04) negatively associated with alcohol use disorder (AOR = 0.70, 95% CI = 0.52-0.95), opioid prescription (AOR = 0.51, 95% CI = 0.38-0.70), and schizophrenia (AOR = 0.59, 95% CI = 0.37-0.95). MOUD was not significantly associated with mortality (adjusted hazards ratio = 1.20, 95% CI = 0.95-1.52) or new hepatic decompensation (OR = 0.57, CI = 0.30-1.09).

DISCUSSION

Few Veterans with active OUD and cirrhosis received MOUD, and those with alcohol use disorder, schizophrenia, and previous prescriptions for opioids were least likely to receive these effective therapies.

Marijuana use among adult liver transplant candidates and recipients

BACKGROUND

Data regarding marijuana (MJ) use among liver transplant (LT) candidates are limited. We set out to determine the incidence and pre- and post-LT outcomes of adult LT candidates with a self-reported history of MJ use.

METHODS

Baseline clinical characteristics, waitlist, and post-LT outcomes of adult LT candidates from January 2010 to March 2017 were compared.

RESULTS

Among 2690 LT candidates, 630(23%) and 298(11%) reported a history of MJ use and use within the past 12 months, respectively. Although the proportion of MJ users increased over time(β = .76, p = .03), the proportion listed and transplanted did not change. Listing for LT increased with male (OR 1.24, 95% CI 11.01-1.52), MELD score (OR 1.08, 95% CI 1.01-1.15), HCC (OR 1.83, 95% CI 1.39-2.41) but decreased among MJ users (OR 0.67, 95% CI 0.50-0.91, p = .01). The median time to listing was longer among MJ users compared to non-users (115 vs. 87 days, p < .0005). Post-LT survival was similar in 83 MJ users and 306 non-users.

CONCLUSION

The proportion of MJ users among LT candidates is increasing. MJ users have a greater burden of psychosocial issues which may contribute to longer evaluations and lower rate of LT listing. Post-LT survival was not impacted by self-reported MJ use history.

2020 Clinical Update in Liver Transplantation

The gold standard treatment of end-stage liver disease continues to be liver transplantation (LT). The challenges of LT require skilled anesthesiologists to anticipate physiologic changes associated with end-stage liver disease and surgical considerations that affect multiple organ systems. While on the waiting list, patients may be placed on new anticoagulation medications that can confound already complex coagulopathy in LT patients. Pain management often is an afterthought for such a complex procedure, but appropriate medications can help control pain while limiting opioid medications. Surgical stress and medications for immunosuppression can affect perioperative glucose management in ways that have implications for patient and graft survival. The coronavirus disease 2019 pandemic in 2020 provided a new challenge for anesthesiologists. The uncertainty of the novel respiratory virus challenged providers beyond just LT patients.

Opioid Avoidance in Liver Transplant Recipients: Reduction in Postoperative Opioid Use Through a Multidisciplinary Multimodal Approach

The prevalence of substance use disorder in the liver transplantation (LT) population makes postoperative pain management challenging. We report our initial experience with a novel, comprehensive, multidisciplinary opioid avoidance pathway in 13 LT recipients between January 2018 and September 2019. Patients received comprehensive pre-LT education on postoperative opioid avoidance by the surgeon, pharmacist, and psychologist at the time of listing. Immediately after LT, patients received a continuous incisional ropivacaine infusion, ketamine, acetaminophen, and gabapentin as standard nonopioid medications; rescue opioids were used as needed. We compared outcomes with a historical cohort of 27 LT recipients transplanted between August 2016 and January 2018 managed primarily with opioids. On average, opioid avoidance patients used 92% fewer median (interquartile range [IQR]) morphine milligram equivalents (MMEs) versus the historical cohort (7 [1-11] versus 87 [60-130] MME; P < 0.001) per postoperative day over a similar length of stay (8 [7-10] versus 6 [6-10] days; P = 0.14). Fewer outpatient MMEs were prescribed within the first 60 days after LT in the opioid avoidance group versus the historical cohort: 125 (25-150) versus 270 (0-463) MME (P = 0.05). This proof-of-concept study outlines the potential to profoundly reduce opioid utilization in the LT population using a comprehensive multidisciplinary approach.

Alcohol and other substance use after liver transplant

In this article we tackle the controversial subject of alcohol and other substance use following liver transplantation (LT). Most of the literature on and importance of this topic pertains not to recreational use of alcohol or substances but to patients who have alcohol or substance use disorders (AUDs/SUDs). To understand these behaviors after such a lifesaving and resource-intensive procedure as LT necessitates an understanding of these disorders as chronic medical diseases. It also requires an awareness that management of these disorders begins before transplant, so we will briefly touch on considerations to prepare patients for the transplantation. Additionally, we review not only the rates of alcohol and substance use post-LT but strategies clinicians could adopt to identify and manage these events post-LT. Thus, we will summarize approaches for monitoring use and a range of therapeutic treatment options, including pharmacotherapy, to employ once use is discovered. While clinical gastroenterologists may be the primary clinicians responsible for the care of LT recipients, we emphasize a multidisciplinary team approach which, especially for the behavioral health components of the treatment, is likely to be the most successful. This article concludes with a summary of recommendations for clinicians working with these patients and possible future directions for both clinical care and research. While the bulk of the literature is on LT in the context of AUD, we review the smaller body of literature available on non-alcohol substance use.

A Review of the Prevalence of Illicit Substance Use in Solid-Organ Transplant Candidates and the Effects of Illicit Substance Use on Solid-Organ Transplant Treatment Outcomes

Solid-organ transplantation is one of the significant advances in the medical field that have improved the quality of life and survival rates of numerous patients with end-organ dysfunction. Substance use is a common condition of individuals who are in need of solid-organ transplantation. The implications of substance use on solid-organ transplants are gaining increasing attention over the past decade. The current review seeks to explore the prevalence rate of illicit substance use among those who receive solid-organ transplantation (pre and post-transplant) and whether illicit substance use before solid-organ transplantation affects the outcome of solid-organ transplants. We searched the Medline database for all the articles available in English on the prevalence of substance use in the context of solid-organ transplant and the effect on outcome measures. We found 21 relevant articles. It appears that substance use is fairly common among solid-organ transplant candidates, with cannabis being the most common substance of abuse. A heterogeneous sample precludes the drawing of a clear-cut conclusion. But it appears that substance use may affect various outcomes of solid-organ transplants. The existing literature may not be sufficient to adequately assess the risk but limited evidence indicates that illicit substance use, particularly cannabis use, may not affect the overall survival following a solid-organ transplant.

Systematic Review: Treatment for Addictive Disorder in Transplant Patients

BACKGROUND AND OBJECTIVES

The number of patients with substance use disorders in need for organ transplantation is expected to increase. Patients with addictive disorders are considered a higher risk of negative outcomes after organ transplantation due to the impact of substance use upon medical status and adherence with treatment. The goal of this systematic review was to assess the current literature on treatment for addiction transplant candidates and recipients.

METHODS

We conducted a literature search within four databases PubMed, MEDLINE, EMBASE, and PsycINFO for publications dated 1/1/1988 to 12/31/2018.

RESULTS

Out of 3108 articles identified through database screening, 39 were included in the qualitative synthesis. Sixteen studies described addiction treatment in groups over five patients. All the articles included liver transplant patients, with only two studies including patients who needed a kidney or a heart transplant. Nine articles described treatment of alcohol use disorder exclusively, five focused on treatment of opioid use disorders. Although 9 of 16 studies were prospective, the variability of the treatment intervention, outcome measures, and control group when applicable prohibited a meaningful meta-analysis of the results. Eight articles that described the case reports are analyzed separately.

DISCUSSION AND CONCLUSIONS

Promising treatment options for alcohol use disorder have been reported but more studies are needed to confirm their effectiveness and their feasibility. Methadone appears effective for opioid disorder in transplant patients.

SCIENTIFIC SIGNIFICANCE

To the best of our knowledge, this is the first systematic review on the treatment of addictive disorders in transplant patients. (Am J Addict 2020;29:445-462).

Ethical issues associated with solid organ transplantation and substance use: a scoping review

While solid organ transplantation for patients with substance use issues has attracted ethical discussion, a typology of the ethics themes has not been articulated in the literature. We conducted a scoping review of peer-reviewed literature on solid organ transplantation and substance use published between January 1997 and April 2016. We aimed to identify and develop a typology of the main ethical themes discussed in this literature and to identify gaps worthy of future research. Seventy articles met inclusion criteria and underwent inductive content analysis. Four main ethical themes were identified: (1) personal responsibility; (2) utility; (3) moral character; and (4) fairness. Each theme had multiple sub-themes and there was substantial overlap between themes. This scoping review identified a disproportionate emphasis in the literature regarding personal responsibility, which was referenced by each of the other themes, and a narrow focus on alcohol and liver. We recommend future research further investigate these connections between ethical themes and focus on ethical issues associated with transplants from organ groups other than liver for patients who use substances other than alcohol.

Alcohol and drug use prior to liver transplantation: more common than expected in patients with non-alcoholic liver disease

Objective: Liver transplantation (LT) is a life-saving procedure for patients with end-stage liver disease, acute liver failure or hepatocellular carcinoma (HCC). Patients with known alcoholic liver cirrhosis (ALC) are usually assessed by an addiction specialist, but patients with other liver diseases may also exhibit harmful drinking. This study aims to assess the drinking habits in LT-recipients with or without a diagnosis of ALC. Patients and methods: Between April 2012 and December 2015, 190 LT-recipients were interviewed using the Lifetime Drinking History (LDH) and the Addiction Severity Index (ASI). Patients were categorized according to their diagnoses: ALC (group A, n = 39), HCC or hepatitis C (group B, n = 56) or other liver diseases (group C, n = 95). Data were analysed using descriptive statistic methods. Results: Fifteen of 95 patients (15.8%) in group C - a cohort without suspected addiction problems - had either alcohol consumption or binge drinking within the upper quartile of the overall cohort. The aetiology of liver disease in this subgroup included mainly cholestatic and cryptogenic liver disease. Illicit drugs had been used by 35% of all patients. Cannabis and amphetamine were the most common drugs and had the longest duration of regular use. Conclusions: LT candidates without known alcohol or drug use may have a clinically significant consumption of alcohol and previous illicit drug use. Efforts should be put on identification of these patients during LT evaluation. The use of structured questionnaires such as the ASI and the LDH could facilitate detection of alcohol and drug problems.

History of Marijuana Use Does Not Affect Outcomes on the Liver Transplant Waitlist

BACKGROUND

Data are limited on marijuana use and its impact on liver transplant (LT) waitlist outcomes. We aimed to assess the risk of waitlist mortality/delisting and likelihood of LT among prior marijuana users and to determine the prevalence and factors associated with marijuana use.

METHODS

Retrospective cohort of adults evaluated for LT over 2 years at a large LT center. Marijuana use was defined by self-report in psychosocial assessment and/or positive urine toxicology. Ongoing marijuana use was not permitted for LT listing during study period.

RESULTS

Eight hundred eighty-four adults were evaluated, and 585 (66%) were listed for LT (median follow-up, 1.4 years; interquartile range, 0.5-2.0). Prevalence of marijuana use was 48%, with 7% being recent users and 41% prior users. Marijuana use had statistically significant association with alcoholic cirrhosis (incidence rate ratio [IRR], 1.9) and hepatitis C (IRR, 2.1) versus hepatitis B, tobacco use (prior IRR, 1.4; recent IRR, 1.3 vs never), alcohol use (never IRR 0.1; heavy use/abuse IRR 1.2 vs social), and illicit drug use (prior IRR, 2.3; recent, 1.9 vs never). In adjusted competing risk regression, marijuana use was not associated with the probability of LT (prior hazard ratio [HR], 0.9; recent HR, 0.9 vs never) or waitlist mortality/delisting (prior HR, 1.0; recent HR, 1.0 vs never). However, recent illicit drug use was associated with higher risk of death or delisting (HR, 1.8; P = 0.004 vs never).

CONCLUSIONS

Unlike illicit drug use, marijuana use was not associated with worse outcomes on the LT waitlist. Prospective studies are needed to assess ongoing marijuana use on the LT waitlist and post-LT outcomes.

Alcoholic hepatitis: appropriate indication for liver transplantation?

PURPOSE OF REVIEW

The majority of liver transplantation centers have required patients with alcohol-induced liver disease to demonstrate a period of abstinence (generally 6 months' duration) to qualify for transplant listing. This requirement has excluded patients with alcoholic hepatitis from transplant consideration. Since 2011, several studies have examined the outcomes of patients undergoing liver transplantation with brief abstinence as a lifesaving intervention for alcoholic hepatitis. This review includes each of the recent studies and discusses their implications for general transplant practice.

RECENT FINDINGS

A Medical Literature Analysis and Retrieval System search revealed five published studies - three prospective and two retrospective - pertaining to liver transplantation for alcoholic hepatitis. Among patients with medication-nonresponsive alcoholic hepatitis, those who underwent transplantation had superior survival. Liver recipients with alcoholic hepatitis had comparable survival to those with 6 or more months of abstinence. Their relapse rates were not statistically different in the short term over those transplanted with longer abstinence, although some patients in each prospective cohort relapsed to drinking despite narrow inclusion criteria and extensive pretransplant staff reviews and posttransplant surveillance.

SUMMARY

Liver transplantation is a reasonable treatment consideration for highly selective cases of alcoholic hepatitis. Further research is needed to refine inclusion criteria, address posttransplant relapse prevention interventions, and monitor long-term outcomes.

Risk factors for hospitalizations among patients with cirrhosis: A prospective cohort study

This study was designed to assess unique baseline factors associated with subsequent hospitalizations in a cohort of outpatients with cirrhosis. A cohort of 193 patients with cirrhosis was recruited from an outpatient liver disease clinic at a single, tertiary medical center. Comorbidities, prescription medications, liver disease symptoms and severity, and psychiatric and pain symptoms were assessed at baseline using validated instruments. Inflammatory markers were measured using standardized Luminex assays. Subsequent hospitalizations and the primary admission diagnoses were collected via chart review. Multivariable models were used to evaluate which baseline factors were associated with time to hospitalization and number of hospitalizations. The cohort consisted of 193 outpatients, with an average age of 58±9 and model for end-stage liver disease (MELD) score of 12±5. Over follow-up, 57 (30%) were admitted to the hospital. The factors associated with time to hospitalization included the severity of liver disease (HR/MELD point:1.10, 95% CI:1.04,1.16), ascites (HR: 1.90, 95% CI: 1.01, 3.58), baseline symptoms of depression (HR:2.34, 95% CI:1.28,4.25), sleep medications (HR:1.81, 95% CI:1.01, 3.22) and IL-6 (HR:1.43, 95% CI: 1.10, 1.84). Similarly the number admissions was significantly associated with MELD (IIR: 1.08, CI: 1.07,1.09), ascites (IIR: 4.15, CI:3.89, 4.43), depressive symptoms (IIR:1.54, CI:1.44,1.64), IL-6 (IIR:1.26, CI:1.23,1.30), sleep medications (IIR:2.74, CI:2.57, 2.93), and widespread pain (IIR: 1.61, CI: 1.50, 1.73). In conclusion, consistent with prior studies, MELD and ascites were associated with subsequent hospitalization. However, this study also identified other factors associated with hospitalization including inflammation, depressive symptoms, sleep medication use, and pain.

Psychiatric Aspects of Organ Transplantation in Critical Care: An Update

Transplant patients face challenging medical journeys, with many detours to the intensive care unit. Before and after transplantation, they have significant psychological and cognitive comorbidities, which decrease their quality of life and potentially compromise their medical outcomes. Critical care staff are essential in these journeys. Being cognizant of relevant psychosocial and mental health aspects of transplant patients' experiences can help critical care personnel take comprehensive care of these patients. This knowledge can empower them to understand their patients' psychological journeys, recognize patients' mental health needs, provide initial interventions, and recognize need for expert consultations.

Treatment of Opioid Dependence With Buprenorphine/Naloxone After Liver Transplantation: Report of Two Cases

Opioid dependence is an increasing public health problem. One of the complications of intravenous opioid use is hepatitis C virus infection, which, in turn, is one of the most common indications for liver transplantations throughout the world. Therefore, the treatment of opioid dependence in a liver transplant recipient requires special attention in terms of graft function, drug interactions, and patient compliance. Buprenorphine is a semi-synthetic opioid-derived agent with analgesic effects. To prevent buprenorphine abuse, it is combined with the opioid antagonist naloxone. This buprenorphine/naloxone combination is the only drug approved for the treatment of opioid dependence in Turkey. Although the literature includes data about the safe usage of buprenorphine in liver transplantation in animals, there is no such evidence in either case reports or clinical trials for the same in humans. In this article, we present a report of our treatment of 2 opioid-dependent patients with buprenorphine/naloxone after liver transplantation due to hepatitis C virus-induced liver cirrhosis.

Implementation of the High-Risk Alcoholism Relapse Scale in a Liver Transplant Clinic

Because of the high prevalence of alcohol relapse after liver transplantation, transplant programs are challenged to evaluate alcoholism among liver transplant patients. Relapse after liver transplantation can have detrimental outcomes such as organ rejection, medical and social resource exhaustion, financial burden to the family and society, and negative public perception of organ transplantation. The purpose of this project was to improve post-liver transplant assessment for the risk of relapse to heavy alcohol use by implementing a protocol using the High-Risk Alcoholism Relapse (HRAR) scale (DiMartini et al., 2000; Yates et al., 1993). The project was conducted in an urban organ transplant center's outpatient post liver transplant clinic. Chart reviews assessed the process of patients identified as being at high risk and the transplant providers' completion of the HRAR scale. Eleven percent of patients assessed were identified as being at high risk for relapse of heavy alcohol use and 85% of providers used the HRAR scale in their clinic interviews. This project demonstrates that further refinements in techniques of predicting the risks of relapse are necessary, and nurses are in ideal positions to screen patients for alcohol use.

Indications for liver transplantation in adults : Recommendations of the Austrian Society for Gastroenterology and Hepatology (ÖGGH) in cooperation with the Austrian Society for Transplantation, Transfusion and Genetics (ATX)

Liver transplantation has emerged as an established and well-accepted therapeutic option for patients with acute and chronic liver failure and hepatocellular carcinoma. The disproportion between recipients and donors is still an ongoing problem that has only been solved partially over the last centuries. For several patients no life-saving organs can be distributed. Therefore, objective and internationally established recommendations regarding indication and organ allocation are imperative. The aim of this article is to establish evidence-based recommendations regarding the evaluation and assessment of adult candidates for liver transplantation. This publication is the first Austrian consensus paper issued and approved by the Austrian Society of Gastroenterology and Hepatology in cooperation with the Austrian Society of Transplantation, Infusion and Genetics.

Biomarkers for detection of alcohol consumption in liver transplantation

Alcoholic liver disease is an established, yet controversial, indication for liver transplantation. Although an abstinence period of up to 6 mo prior to transplantation is mandatory, alcohol relapse after transplantation is a common event. In case of recurrence of heavy drinking, graft survival is significantly impaired. Guidelines on detection and surveillance of alcohol consumption in this patient cohort are lacking. This review summarizes the challenge of patient selection as well as the current knowledge on established and novel alcohol biomarkers with special focus on liver transplant candidates and recipients.

Management of alcohol recurrence before and after liver transplantation

Alcoholic liver disease (ALD) is a major cause of chronic liver disease worldwide and can lead to steatosis, steatohepatitis, fibrosis, cirrhosis and hepatocellular carcinoma. The primary effective treatment for patients with ALD is total alcohol abstinence, although sometimes impossible, liver transplant (LT) is the gold standard treatment for end-stage ALD, which represents the second most common diagnosis among patients undergoing this procedure. Liver transplant in ALD has better results than those for other etiologies. The alcohol consumption recidivism after LT is frequent and 10% to 15% of these resume heavy drinking with consequences to the new liver. The "6-month rule" of abstinence is an arbitrary threshold used in many transplant centers and has never been shown to affect survival after LT. The optimal abstinence period in pre-transplant remains unclear. The patients in the pre- and post-transplant period need evaluation of a multidisciplinary team, as psychiatrist, addiction specialists, including counselling and attendance to support groups. The impact of alcohol relapse on post-transplant outcomes is not entirely clear but is worse with continuing heavy drinking, with poorer survival beyond the fifth post-transplant year malignancy and cardiovascular disease and not recurrent liver failure. Acute alcoholic hepatitis, in careful selected cases, should be transplanted and have comparable survival outcomes. Prevention of alcoholic recidivism has proved to be the most important treatment after liver transplantation.

Resilience in Organ Transplantation: An Application of the Connor-Davidson Resilience Scale (CD-RISC) With Liver Transplant Candidates

End-stage liver disease (ESLD) is a chronic and debilitating condition associated with substantial psychological stress, morbidity, and mortality. The Connor-Davidson Resilience Scale (CD-RISC; Connor & Davidson, 2003 ) is a commonly used resilience measure. This research examined the validity of the CD-RISC among ESLD patients (N = 120) using exploratory factor analysis. Results supported a single-factor solution after removing poorly loading items. The CD-RISC also was correlated with measures of depression, anxiety, quality of life, social support, age, and cognitive ability, thus providing evidence to support its construct validity. Future research should confirm this factor structure and examine its predictive validity prior to widespread use among ESLD patients. This research represents the first step in this process and proposes an alternative version of the CD-RISC for this population.

Recurrence of nonviral liver diseases after liver transplantation

Many nonviral diseases that cause liver failure may recur after liver transplantation. Although most studies have shown that a recurrent disease does not negatively affect patient and graft survival in the intermediate postoperative course, there is growing evidence that, especially in patients with primary sclerosing cholangitis and in patients with recurrent abusive alcohol drinking, disease recurrence is a significant risk factor for graft dysfunction and graft loss. Therefore, the recurrence of nonviral diseases has become a clinically important and prognostically relevant issue in the long-term management of recipients of liver transplantation.

Challenges in transplantation for alcoholic liver disease

Transplantation for the treatment of alcoholic cirrhosis is more controversially discussed than it is for any other indication. The crucial aspect in this setting is abstinence before and after liver transplantation. We established pre-transplant selection criteria for potential transplant candidates. Provided that the underlying disease can be treated, there is no reason to withhold liver transplantation in a patient suffering from alcoholic cirrhosis. Evaluation of the patient by a multidisciplinary team, including an addiction specialist, is considered to be the gold standard. However, several centers demand a specified period of abstinence - usually 6 mo- irrespective of the specialist’s assessment. The 6-mo rule is viewed critically because liver transplantation was found to clearly benefit selected patients with acute alcoholic hepatitis; the benefit was similar to that achieved for other acute indications. However, the discussion may well be an academic one because the waiting time for liver transplantation exceeds six months at the majority of centers. The actual challenge in liver transplantation for alcoholic cirrhosis may well be the need for lifelong post-transplant follow-up rather than the patient’s pre-transplant evaluation. A small number of recipients experience a relapse of alcoholism; these patients are at risk for organ damage and graft-related death. Post-transplant surveillance protocols should demonstrate alcohol relapse at an early stage, thus permitting the initiation of adequate treatment. Patients with alcoholic cirrhosis are at high risk of developing head and neck, esophageal, or lung cancer. The higher risk of malignancies should be considered in the routine assessment of patients suffering from alcoholic cirrhosis. Tumor surveillance protocols for liver transplant recipients, currently being developed, should become a part of standard care; these will improve survival by permitting diagnosis at an early stage. In conclusion, the key factor determining the outcome of transplantation for alcoholic cirrhosis is intensive lifelong medical and psychological care. Post-transplant surveillance might be much more important than pre-transplant selection.

Liver, pancreas and small bowel transplantation: current ethical issues

We describe the medical state of the art in liver, pancreas and small bowel transplantation, and portray the ethical issues. Although most ethical questions related to these transplantations are not specific for liver, pancreas and small bowel, they do challenge ethical analysis as well as new policies and clinical procedures. Firstly, outcomes continue to be of utmost concern, as information is only limited available, is developing over time and is surrounded by many uncertainties. Secondly, characteristics of donors and recipients should be carefully evaluated. The question of what qualifies a donor and a recipient should be considered against the background of a quest for extended criteria, embracing marginal cases, and a judgment with regard to what counts as a good enough outcome. Thirdly, ethical principles of autonomy and fairness are pushed, given the circumstance of severe scarcity, towards limits that can easily be crossed.

Substance abuse treatment and its association with relapse to alcohol use after liver transplantation

Many liver transplantation (LT) programs require substance abuse (SA) treatment for candidates with a history of alcohol abuse. However, there are no data indicating that SA treatment prevents post-LT alcohol relapse. We examined 118 adults who underwent LT from May 2002 to February 2011 to explore the relationship between SA treatment and post-LT relapse to any alcohol use. Sixty-one patients (52%) with a history of alcohol abuse or dependence received SA treatment before LT. Relapse to any alcohol use was identified in 40 LT recipients (34%). Patients who received SA treatment before LT did not differ significantly in the rate of post-LT alcohol relapse from patients who did not receive treatment before transplantation(30% versus 39%, P = 0.20). However, patients who received SA treatment both before and after transplantation had significantly lower rates of alcohol relapse (16%) than patients who received no SA treatment (41%) or SA treatment only before LT (45%, P = 0.03). Our findings suggest that LT programs should consider placing more emphasis on the continuation of some type of SA treatment after transplantation. Future research should prospectively examine the optimal timing for SA treatment that will attenuate the risk of alcohol relapse after transplantation.

Patient selection for liver transplantation

Improved outcomes in liver transplant recipients reflect advances in surgical technique, post-operative care, immunosuppression as well as better selection of potential candidates. The pre-transplant evaluation is a multidisciplinary process intended to recognize and treat important comorbid conditions that may impair outcomes during the peri- and post-transplant periods. Important psychosocial issues should also be ascertained and tackled early during the pre-transplant evaluation with an overarching intention to improve the success of liver transplantation.

Should length of sobriety be a major determinant in liver transplant selection?

PURPOSE OF REVIEW

For patients with alcoholic liver disease, most liver transplant programs enforce a mandatory period of sustained abstinence prior to considering transplant. The '6-month' rule may eliminate potentially acceptable transplant candidates from a lifesaving procedure. This review focuses on the use of sobriety length as a determinant of transplant candidacy and as a predictor of future alcohol use. We will also review the use of liver transplant in patients with severe alcoholic hepatitis, and the impact of alcohol use on posttransplant outcomes.

RECENT FINDINGS

Patients with alcoholic hepatitis that underwent transplantation had an increased survival when compared with controls. Alcohol relapse after transplantation was infrequent. Similarly, a United Network for Organ Sharing database review revealed similar survival in patients transplanted for alcoholic hepatitis versus alcoholic cirrhosis. Allograft loss due to alcohol use was not seen. However, alcohol usage after transplantation has been associated with a lower long-term survival in both alcoholic and nonalcoholic recipients.

SUMMARY

The 6-month rule is insufficient in predicting relapse risk. Liver transplantation may be lifesaving in cases of alcoholic hepatitis and inflexible sobriety rules may eliminate patients from transplant consideration at a low risk of relapse. An ongoing alcohol use assessment, both pre- and posttransplant, are critical to achieving good long-term outcomes.

Evaluation and selection of the patient with alcoholic liver disease for liver transplant

Alcoholic liver cirrhosis is the second most common indication for liver transplantation in the United States. Studies have shown that these patients do as well as those transplanted for nonalcoholic liver disease. Recently, transplantation of patients with alcoholic liver disease has come under closer scrutiny following an article in the New England Journal of Medicine demonstrating comparable outcomes and survival in patients transplanted for acute alcoholic hepatitis. This article reviews the literature and data on the evaluation and selection of patients with alcoholic cirrhosis for liver transplant, and discusses the most recent indication (once a contraindication), acute alcoholic hepatitis.