Living-related liver transplantation for Wilson's disease

Tackling the neurological manifestations in Wilson's disease - currently available treatment options

INTRODUCTION

Wilson's disease (WD) is a potentially treatable, inherited disorder resulting from impaired copper metabolism. Pathological copper accumulation causes a range of symptoms, most commonly hepatic and a wide spectrum of neurological symptoms including tremor, dystonia, chorea, parkinsonism, dysphagia, dysarthria, gait and posture disturbances. To reduce copper overload, anti-copper drugs are used that improve liver function and neurological symptoms in up to 85% of patients. However, in some WD patients, treatment introduction leads to neurological deterioration, and in others, neurological symptoms persist with no improvement or improvement only after several years of treatment, severely affecting the patient's quality of life.

AREAS COVERED

This review appraises the evidence on various pharmacological and non-pharmacological therapies, neurosurgical procedures and liver transplantation for the management of neurological WD symptoms. The authors also discuss the neurological symptoms of WD, causes of deterioration and present symptomatic treatment options.

EXPERT OPINION

Based on case and series reports, current recommendations and expert opinion, WD treatment is focused mainly on drugs leading to negative copper body metabolism (chelators or zinc salts) and copper-restricted diet. Treatment of WD neurological symptoms should follow general recommendations of symptomatic treatment. Patients should be always considered individually, especially in the case of severe, disabling neurological symptoms.

Liver transplantation as a treatment for Wilson's disease with neurological presentation: a systematic literature review

Introduction

Wilson’s disease (WD) is a potentially treatable, genetic disorder of copper metabolism, with survival similar to healthy populations if controlled. However, in almost 50% of WD patients, neurological symptoms persist despite treatment, and in up to 10% of patients, neurological deterioration is irreversible. International guidelines on WD treatment do not recommend liver transplantation (LT) as a treatment for neurological symptoms in WD. However, such treatment has been assessed in retrospective analyses, case and series reports. We aimed to systematically assess all available evidence on the effectiveness and safety of LT in WD patients with neurological presentation.

Methods

This systematic literature review was performed according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Studies were identified by searching the PubMed database (up to 6 April 2021) and by screening reference lists.

Results

Based on the systematic literature review, 48 articles were identified, showing outcomes of LT in 302 WD patients with neurological symptoms. Of these patients, major improvement was found in 215 cases (71.2%), with no difference in neurological status before and after LT in 21 cases (6.9%). There were 29 deaths (9.6%), neurological worsening in 24 cases (7.9%), and 13 cases (4.3%) were lost to follow-up.

Conclusions

The results suggest that LT is a promising method of WD management in patients with severe, neurological symptoms, particularly if the patient has not responded to pharmacological de-coppering treatment. Further studies of LT in these patients are warranted.

Supplementary Information

The online version contains supplementary material available at 10.1007/s13760-022-01872-w.

Emergent Living Donor Liver Transplantation for Fulminant Hepatic Failure Secondary to Wilson’s Disease

Emergent living donor liver transplantation in adults with fulminant hepatic failure secondary to Wilson's disease is rarely performed. We report a case of decompensated Wilson's disease presenting with fulminant hepatic failure treated with an emergent living donor liver transplant. A 25-year-old female presented with fulminant hepatic failure and underwent an emergent living donor liver transplant using a left-lobe graft from her brother. Explant revealed a nodular, cirrhotic liver with numerous yellow-green nodules on the cut surface, and histopathology revealed confluent necrosis and cholestasis with positive copper immunostain. Quantitative hepatic copper was 2119 mcg/g (range: 10−35 mcg/g). Recipient genetic testing revealed c.2930C>T p. (Thr977Met) homozygous variant in the ATP7B gene. The donor was heterozygous for the mutation. The recipient continues to do well three years later with normal ceruloplasmin and urinary copper excretion.

Outcome of Living Donor Liver Transplantation for Wilson's Disease in Adults: A Single Center Experience

INTRODUCTION

Although liver transplantation is a definitive cure for Wilson's disease (WD), there is limited data about results of living donor liver transplantation (LDLT) in adults.

MATERIAL AND METHODS

18 adults underwent LDLT for WD. The presentations before LDLT were decompensated cirrhosis (n = 16), acute on chronic liver failure (n = 1) and acute liver failure (n = 1). The donors were parents (n = 2), siblings (n = 3), cousin (n = 1), daughter (n = 1), nephew (n = 1), spouse or relatives of spouse (n = 9) and from swap transplantation (n = 1). All genetically related donors were negative for screening of WD.

RESULTS

The study cohort comprised of 15 males and 3 females, aged 32 ± 10 years. Severity of liver disease (excluding acute liver failure patient) was as follows; Child's score 10 ± 2, model for end-stage liver disease (MELD) score 18 ± 6. The graft to recipient weight ratio was 1 ± 0.2. The ICU and hospital stay were 5.5 ± 0.9 and 15 ± 5 days. Two patients died in first month after liver transplantation, rest of patients are doing well at median 15 (8-38 months). Two patients had acute cellular rejection that responded to steroids, one had hepatic artery thrombosis and 2 had biliary strictures. Three patients had neurological symptoms; 2 of these patients had partial recovery while one had complete recovery. There was no significant difference between LDLT from genetically related or unrelated donors.

CONCLUSION

LDLT for WD in adults is associated with good outcomes.

Living Donor Liver Transplantation for Wilson's Disease Associated with Fulminant Hepatic Failure: A Case Report

Patient: Female, 17

Final Diagnosis: Fulminant Wilson’s disease

Symptoms: General jaundice • malaise • abdominal pain

Medication: —

Clinical Procedure: ICU

Specialty: Transplantology

Liver Transplant Can Resolve Severe Neuropsychiatric Manifestations of Wilson Disease: A Case Report

Although liver transplant for decompensated cirrhosis secondary to Wilson disease is well accepted, the use of transplant for patients with severe neurologic manifestations of this condition remains controversial, and these can be perceived as a contraindication. Here, we describe a 45-year-old woman who presented with an incidental hepatocellular carcinoma at the time of transplant. The patient had severe neurologic manifestations of Wilson disease pretransplant, including dysarthria, hyperreflexia, asymmetrical ataxia, tremor, bradyphrenia, and shuffling gait. She underwent successful transplant from a hepatic and surgical standpoint, but her postoperative course was marked by protracted mutism, hypophonia, and fluctuating akinesia and immobility that did not respond promptly to withdrawal of calcineurin inhibitors or pramipexole but did respond robustly to amantadine. At 9 months posttransplant, there was marked neurologic improvement, and, at 18 months, she exhibited subtle memory and organizational difficulties but was fully ambulatory and otherwise completely functional. Our experience suggests that even patients with severe neurologic Wilson disease may recover after transplant, albeit slowly, demonstrating the need for a multidisciplinary approach, including pre- and posttransplant neurologic and neuropsychiatric consultations.

Influence of Liver Transplantation on Neuropsychiatric Manifestations of Wilson Disease

OBJECTIVES

This study sought to evaluate the effect of liver transplantation on the neuropsychological manifestations of Wilson disease.

MATERIALS AND METHODS

Nine of 42 Wilson disease patients had neuropsychological symptoms before liver transplantation. They were 7 male and 2 female subjects with a median age of 19 years (range 10 to 25). They were analyzed for their preoperative and postoperative hepatic, neurological, and psychological scores described by the Unified Wilson Disease Rating Scale after a mean 36.6 months of follow-up.

RESULTS

Preoperative mean Model for End-Stage Liver Disease and Child-Pugh scores were 18.3 (range 15 to 26) and 8.9 (range 6 to 12), respectively. One patient had acute postoperative ischemic stroke unrelated to Wilson disease and was excluded from the statistical analysis. Preoperative and postoperative hepatic, neurological, and psychological scores of the remaining 8 patients were 7.4 ± 2.3 vs 2.4 ± 1.3 (P = .0005), 17.7 ± 11.7 vs 12.7 ± 12.5 (P = .055), and 9.0 ± 1.7 vs 7.0 ± 2.1 (P = .033).

CONCLUSIONS

Liver transplantation for Wilson disease can provide some improvement of the neuropsychological symptoms in addition to the hepatic recovery.

Liver transplantation in neurological Wilson's Disease: is there indication? A case report

Wilson's disease (WD) is an autosomal recessive disorder characterized by copper overload. In this disease, inadequate hepatic excretion leads to copper accumulation in the liver, brain, kidney, and cornea. Severe neurological symptoms can develop in patients with WD, often in the absence of relevant liver damage: it is unclear whether liver transplantation (LT) could reverse neurological symptoms, and at present LT is not recommended in this setting. We report a case of regression of neurological symptoms in a patient affected by WD with prevalent neurological involvement. A 19-year-old man with disabling neuropsychiatric symptoms from WD that included frontal ataxia, akinesia, dystonia, tremors, and behavioral disorders in the presence of preserved liver function (Model for End-Stage Liver Disease score=7; Child-Turcotte-Pugh score=A5) underwent LT in November 2009. At the time of LT, encephalic magnetic resonance imaging (MRI) indicated diffuse neurodegenerative alterations involving subtentorial and supratentorial structures; bilateral Kayser-Fleischer ring was present. Four years after LT, laboratory tests show normalized copper metabolism and excellent liver function test results. Encephalic MRI shows a substantial improvement of already-known signal alterations at nuclei thalamus and putamen, mesencephalon, and pons. Kayser-Fleischer ring disappeared from the right eye, but a little remnant is still visible in the left eye. At neurological examination, all of the previous symptoms and signs are no longer present and behavioral disorders are no longer present; psychosocial functions are completely restored. The present case provides some evidence that LT may be a valid therapeutic option for WD patients with marked neurological impairment, particularly in those no longer responsive to chelation therapy.

Outcome and development of symptoms after orthotopic liver transplantation for Wilson disease

BACKGROUND

Wilson disease (WD) is an autosomal recessive copper storage disease resulting in hepatic and neurologic dysfunction. Liver transplantation is an effective treatment for fulminant cases for patients with chronic liver disease. Reports on the outcome of neuropsychiatric symptoms after orthotopic liver transplantation (OLT) are limited.

AIM

To assess the course of neuropsychiatric and hepatic symptoms after liver transplantation for Wilson disease

METHODS

Nineteen patients with Wilson disease received liver transplantation and were followed prospectively from 2005 to 2010 for the development of hepatic, neurological and psychiatric symptoms.

RESULTS

Eight patients (all female) were transplanted for acute liver failure and eleven patients for chronic liver failure. Patient survival rates one and five yr after transplantation were 78% and 65%, respectively. Of the surviving patients, hepatic symptom scores improved in all patients and neurological symptom scores improved in all but one patient after OLT compared to the time of initial diagnosis and compared to pre-OLT status. Psychiatric symptoms showed moderate improvements.

CONCLUSION

Survival after OLT for Wilson disease with end-stage liver disease is excellent. Overall, neuropsychiatric symptoms improved after transplantation, substantiating arguments for widening of the indication for liver transplantation in symptomatic neurologic Wilson disease patients with stable liver function.

Liver transplantation for Wilson disease

The aim of this paper is to review the current status of liver transplantation (LT) for Wilson disease (WD), focusing on indications and controversies, especially in patients with neuropsychiatric disease, and on identification of acute liver failure (ALF) cases related to WD. LT remains the treatment of choice for patients with ALF, as initial presentation of WD or when anti-copper agents are stopped, and for patients with chronic liver disease progressed to cirrhosis, unresponsive to chelating medications or not timely treated with copper chelating agents. The indication for LT in WD remains highly debated in patients with progressive neurological deterioration and failure to improve with appropriate medical treatment. In case of Wilsonian ALF, early identification is key as mortality is 100% without emergency LT. As many of the copper metabolism parameters are believed to be less reliable in ALF, simple biochemical tests have been proposed for diagnosis of acute WD with good sensitivity and specificity. LT corrects copper metabolism and complications resulting from WD with excellent 1 and 5 year survival. Living related liver transplantation represents an alternative to deceased donor LT with excellent long-term survival, without disease recurrence. Future options may include hepatocyte transplantation and gene therapy. Although both of these have shown promising results in animal models of WD, prospective human studies are much needed to demonstrate their long-term beneficial effects and their potential to replace the need for medical therapy and LT in patients with WD.

A clinical study of Wilson's disease: The experience of a single Egyptian Paediatric Hepatology Unit

BACKGROUND AND STUDY AIMS

Most paediatric patients with Wilson's disease (WD) present with hepatic manifestations, but some may have neurologic or psychiatric features. Our aim was to define the clinical, biochemical features and the outcome of therapy of a group of Egyptian children diagnosed with WD.

PATIENTS AND METHODS

The study was carried out at the Paediatric Hepatology Unit at Cairo University Children's Hospital, Egypt; 54 patients were diagnosed with WD from 1996 to 2009. The diagnosis was based on low serum ceruloplasmin levels, increased urinary copper concentrations before or after D-penicillamine challenge and/or the presence of Kayser-Fleischer (K-F) rings.

RESULTS

The clinical presentation was as follows: hepatic presentation in 33 patients (61%), hepato-neurologic 3 (5.5%), neurologic 5 (9.3%) and presymptomatic 13 (24%). Twelve couples had more than one affected sib. Increased urinary copper concentrations before or after D-penicillamine challenge was found in all patients, low serum ceruloplasmin in 97% and K-F rings in 31.5%. All patients were treated with penicillamine and zinc sulphate except one presymptomatic case who was treated with zinc sulphate only. Three patients underwent liver transplantation and eight patients died after a median duration of treatment of 6 months (1-36). The hepatic symptoms improved with treatment but the neurological symptoms remained stationary.

CONCLUSIONS

Clinical and biochemical assays remain the standard for diagnosis of WD. Penicillamine and zinc therapy can effectively treat WD with hepatic symptoms. Liver transplantation remains life saving for those with fulminant and end stage WD. Screening for presymptomatic sibs is of utmost importance.

Long-term outcomes for 32 cases of Wilson's disease after living-donor liver transplantation

BACKGROUND

Long-term outcomes after living donor liver transplantation (LDLT) in Wilson's disease (WD) with heterozygous donors for WD gene are unknown.

METHODS

LDLT was performed for 32 patients with WD (15 men, 17 women; mean age 16 years; range, 6-40 years) at Kyoto University Hospital from 1992 to 2006. The mean follow-up time from LDLT was 6.7+/-4.0 years (0.04-15.0 years). Donors were mainly parents (90.6%), who were obligatory carriers of the WD mutation. The present study examined retrospectively the copper metabolism, recurrence of WD, survival rate, and neurologic outcomes after LDLT.

RESULTS

Mean ceruloplasmin at the time of LDLT was 9.7+/-7.3 mg/dL and increased to 22.3+/-5.3 mg/dL (normal, 18-37 mg/dL). Urinary copper decreased from 2704+/-901 to 73.7+/-5.2 microg/day (normal, <50 microg/day). Serum copper improved from 72.9+/-33.9 to 81.0+/-14.9 mg/dL (normal, 78-131 mg/dL). Although six patients died and two received retransplantation, the remaining 24 remain alive without recurrence, with overall survival rates of 90.6%, 83.7%, and 79.9% at 1, 5, and 10 years, respectively. Patients with chronic liver failure had a poorer prognosis (P<0.05).

CONCLUSION

Use of liver grafts from heterozygous donors has been considered safe. Good improvements in copper metabolism were obtained without evidence of recurrence in long-term follow-up. Neuropsychologic presentations of WD improved or remained unchanged. Indications for liver transplantation in patients with WD with neurologic symptoms must be considered carefully based on the stage of neurologic damage and its irreversibility.