Exploring the Content Validity of the Unified Wilson Disease Rating Scale: Insights from Qualitative Research.

INTRODUCTION: Wilson disease (WD) is a rare metabolic disorder of impaired copper transport manifesting in hepatic, neurological, and psychiatric symptoms. To evaluate the clinical symptoms of WD in clinical trials, a group of clinicians created the Unified Wilson Disease Rating Scale (UWDRS). Content validity of this scale has not been established. The aim of this study was to evaluate the content validity of the UWDRS Part II from the patient perspective. METHODS: This study utilized multiple qualitative research methods including concept elicitation interviews, concept/instrument mapping, and cognitive debriefing interviews. RESULTS: Concept elicitation interviews with a sample of patients with WD and one or more neurological signs/symptoms identified several signs, symptoms, and impacts related to neurological dysfunction, strengthening our understanding of the importance of the neurological aspects of the WD patient experience. Mapping neurological concepts to Part II and III items of the UWDRS showed complete coverage of all salient neurological concepts and near complete coverage of all neurological concepts reported by patients in concept elicitation interviews. Item debriefing of Part II of the UWDRS revealed that patients generally found the items clear and personally relevant to their experience with WD. CONCLUSION: Overall, the findings from this study provide evidence for the content validity of the UWDRS Part II and supportive evidence for the content validity of Part III. The UWDRS should be used in conjunction with additional clinical outcomes assessments, specifically those evaluating the hepatic and psychiatric signs/symptoms of WD, to provide a comprehensive evaluation of the WD patient experience.

Adherence to treatment, a challenge even in treatable metabolic rare diseases: A cross sectional study of Wilson's disease.

Wilson's disease (WD), a rare genetic disorder responsible for copper accumulation in the body, is fatal if left untreated. Although there are effective treatments, adherence to treatment tends to be low. We evaluated the medication adherence of 139 patients using the Morisky scale. Adherence was correlated with age at diagnosis and at inclusion in the study, the form of the disease, the treatment, the duration of treatment, delivery and storage problems, depression, anxiety, the level of education, and the biological data. 32.4% of the patients had low adherence; their levels of exchangeable copper were significantly higher than those of the patients with high or medium adherence (P = .049). The average age of the patients at the time of the study was significantly higher in those with high adherence than in those with medium or low adherence (P = .043). 75.9% of the patients with high adherence had a neurological form and 26.7% of the patients with low adherence were asymptomatic (P = .0090). The duration of treatment was significantly longer in the patients with high adherence than in those with medium or low adherence (P = .0192). The type of treatment (chelators or zinc) had no impact on the level of adherence. Forty-four percent of the patients experienced problems dispensing and storing medications. Despite the availability of effective treatments for this rare disease, adherence problems occur with Wilson's disease in particular in asymptomatic patients. Although different factors are involved, sustained multidisciplinary management on a case-by-case basis is necessary.

A population-based epidemiology of Wilson's disease in South Korea between 2010 and 2016.

Very few population-based studies have examined the epidemiology of Wilson's disease (WD). We investigated the epidemiology of WD using the National Health Insurance Service (NHIS) database in South Korea. We analyzed not only the statistical variables of WD, but also those of WD-related diseases. WD patients were identified with the relevant International Classification of Diseases-10 code out of 50.5 million people. We used the NHIS database from 2009 to 2016 and analyzed the incidence rate, prevalence, and clinical symptoms of WD. A total of 1,333 patients were identified. The average annual incidence rate was 3.8 per million person-years. The prevalence was 38.7 per million people. The mean diagnostic age was 26.1 ± 17.2 with earlier diagnosis in men (P = 0.0003). Among the patients, 988 (74.1%) had hepatic symptoms, 510 (38.3%) had neurologic symptoms, and 601 (45.1%) had psychiatric symptoms. Before the diagnosis of WD, 350 (26.3%) had neurologic symptoms, and 427 (32%) had psychiatric symptoms. The annual mortality rate was 0.7%. Age, liver cirrhosis, and liver failure correlated with a fatal prognosis (P < 0.05). Many patients showed neurologic and psychiatric symptoms before they were diagnosed with WD. Prognosis correlated with age, liver cirrhosis, and liver failure.

Predictors of caregiver burden in patients with neurologic Wilson disease.

OBJECTIVES: Caregiver burden in neurologic Wilson disease (NWD) has received little attention. We investigated predictors of caregiver burden in Chinese NWD patients. METHODS: Participants in this retrospective study were NWD patients admitted to The First Affiliated Hospital of Anhui University of Traditional Chinese Medicine from 1 August to 31 December 2019. Sociodemographic information was recorded for caregivers and NWD patients. Caregiver burden was evaluated using the Caregiver Burden Inventory (CBI). Cognitive impairment, functional problems, depression and anxiety were evaluated by professional interviewers. Path analysis was used to evaluate predictors of CBI scores. RESULTS: Sixty NWD patients were enrolled (mean age: 21.35 ± 4.89 years; mean NWD duration: 7.85 ± 3.11 years). The mean CBI score was 52.00 ± 17.16. Care duration had a significant direct effect on CBI score after controlling for confounders (r = 0.493). Cognitive impairment (r = -0.426), functional problems (r = 0.581), depression (r = 0.349) and anxiety (r = 0.317) had significant indirect effects on CBI score. CONCLUSION: Caregivers of NWD patients may experience a medium level of caregiver burden. NWD duration, cognitive impairment, functional problems, depression and anxiety in NWD patients may be useful predictors of caregiver burden.

Primarily depression manifestation of Wilson's disease-Case report.

Wilson's disease is an inherited autosomal-recessive disorder of biliary copper excretion. It is characterized by hepatic, neurological and ophthalmic manifestations related to the accumulation of copper in the liver, the lenticular nuclei of brain and cornea. The authors present the case of a 29-year-old female with primarily depression manifestation of Wilson's disease. The patient also reported agitation, difficulties with concentration, slowdown of speech, and stuttering. In magnetic resonance imaging, in putamen, the globus pallidus, claustrum, the heads of caudate nucleus and thalamus areas demonstrated the increased signal in T2. A high copper content was obtained in daily urine collection and reduced level in serum. Similarly, ceruloplasmin level was decreased. Despite the antidepressant treatment with venlafaxine, no improvement was observed. Within a week of psychomotor slowdown, symptoms such as Parkinson's syndrome appeared. Due to the rapid progression of the disease symptoms, the patient was referred for further treatment at a specialistic center. After six month, despite the treatment, the progress of disease was so advanced that patient was transferred to the hospice. Two weeks later patient died. Wilson's disease might be consider in differential diagnosis of depression in young patients, especially if they present additional extrapyramidal symptoms and unspecific changes in magnetic resonance imaging.

Atypical neuroimaging findings in patients with acquired hepatocerebral degeneration.

BACKGROUND: Acquired hepatocerebral degeneration (AHD) is now widely recognized by physicians. Although hyperintensity in the bilateral globus pallidus in T1-weighted magnetic resonance images (MRIs) are characteristic neuroimaging findings, accumulating reports indicate that atypical neuroimaging findings are not rare. This study aimed to describe the spectrum of atypical neuroimaging findings and related factors in patients with AHD. METHODS: From February 2017 to January 2019, a retrospective study was conducted of 28 patients with AHD in the Shengjing Hospital of China Medical University. The neurological manifestations, clinical parameters, and biochemical and neuroimaging findings were analyzed. RESULTS: Among 28 patients, 14 patients were diagnosed with viral hepatitis-caused hepatocirrhosis, which was the most common cause of AHD. Resting tremor, cognitive impairment, and parkinsonian gait were the most common neurologic symptoms. Bilateral globus pallidus T1-weighted hyperintensity was detected in 26 patients (26/28, 92.9%). Ten patients (10/28, 35.7%) were determined to have an atypical neuroimaging finding. Binary logistic regression analysis indicated that age at onset of neurologic symptoms (odds ratio = 1.29, 95% confidence interval [CI] 1.03-1.61; p = 0.030) and Child-Pugh scores (odds ratio = 2.52, 95% CI, 1.01-6.31; p = 0.048) were independently associated with atypical neuroimaging findings in AHD. CONCLUSION: The clinical manifestations of AHD are diverse; resting tremor, cognitive impairment, and parkinsonian gait were the most common. More than one third of patients had atypical neuroimaging findings. Age at onset of neurologic symptoms and Child-Pugh scores may be important predictors of atypical neuroimaging findings in patients with AHD.

[Wilson disease: The look of medical staff, patients and family members]. / La enfermedad de Wilson: las diversas perspectivas del profesional sanitario, afectado y familiar.

OBJECTIVE: Wilson disease (WD) is a rare congenital disease that causes hepatic, neurological or lenticular degeneration due to the accumulation of copper. Sometimes it is incapacitating with implications in the quality of life of those affected and their families. The objective of this work was to identify the needs of medical staff and the social and emotional needs of patients with WD and their families. METHODS: A qualitative research was developed in the Valencian Region during 2015-2016, five interviews with medical staff and two focus groups were made, one with family members and another with patients using a script divided into: diagnosis, treatment, health care and quality of life. The information was collected in audio/video and transcribed. An analysis of discourse (professional vs family/affected) determining needs was made. RESULTS: Medical staff need more knowledge about this pathology. Better educational training for them would facilitate the diagnosis. Families and patients need more information about the guidelines for the treatment's administration and foods that should be excluded from the diet. The correct administration of the treatment will allow those affected to improve their quality of life with a total or partial recovery of their symptoms.. CONCLUSIONS: Peru has made significant progress in reducing chronic malnutrition in children, but it still represents a health problem due to high prevalence in the sierra and expansion to jungles districts in 2016. Policies and programs should continue and enhance to avoid the high burden of disease that generates malnutrition in the development of children.

OBJETIVO: La Enfermedad de Wilson (EW) es una patología rara congénita y hereditaria que se produce por acumulación de cobre en el organismo, degeneración crónica hepática, neurológica o lenticular. En ocasiones es incapacitante por lo que influye en la calidad de vida de afectados y familiares. El objetivo de este trabajo fue identificar las necesidades médicas, sociales y emocionales de pacientes y familiares. METODOS: Con metodología cualitativa se realizaron en la Comunitat Valenciana (CV), en 2015-2016, 5 entrevistas a profesionales sanitarios y 2 grupos de discusión, uno con familiares y otro con afectados. Se elaboró un guión estructurado en: diagnóstico, tratamiento, atención sanitaria y calidad de vida. La información se recogió en audio/video, previa autorización y se transcribió literalmente. Se realizó un análisis del discurso (profesionales vs. familiares/afectados) determinando necesidades y demandas concretas. RESULTADOS: Los profesionales se mostraron emocionalmente distantes de las necesidades emocionales de afectados y familiares y consideraron necesario disponer de mayor información para facilitar el diagnóstico precoz. Las familias expresaron preocupación sobre la adherencia al tratamiento, especialmente en adolescentes, y confusión sobre la importancia de seguir una dieta baja en cobre. Los afectados reconocieron tener dudas sobre la funcionalidad de la medicación. Los afectados neurológicamente se sintieron estigmatizados por las secuelas físicas de la enfermedad. CONCLUSIONES: Los sanitarios consideran que tener un mayor conocimiento sobre esta enfermedad facilitaría una detección precoz. Familiares y afectados necesitan indicaciones claras y especificadas sobre las pautas de administración del tratamiento y sobre los alimentos que deben excluir de la dieta.

La enfermedad de Wilson: las diversas perspectivas del profesional sanitario, afectado y familiar / Wilson disease: The look of medical staff, patients and family members

OBJETIVO: La Enfermedad de Wilson (EW) es una patología rara congénita y hereditaria que se produce por acumulación de cobre en el organismo, degeneración crónica hepática, neurológica o lenticular. En ocasiones es incapacitante por lo que influye en la calidad de vida de afectados y familiares. El objetivo de este trabajo fue identificar las necesidades médicas, sociales y emocionales de pacientes y familiares. MÉTODOS: Con metodología cualitativa se realizaron en la Comunitat Valenciana (CV), en 2015-2016, 5 entrevistas a profesionales sanitarios y 2 grupos de discusión, uno con familiares y otro con afectados. Se elaboró un guión estructurado en: diagnóstico, tratamiento, atención sanitaria y calidad de vida. La información se recogió en audio/video, previa autorización y se transcribió literalmente. Se realizó un análisis del discurso (profesionales vs. familiares/afectados) determinando necesidades y demandas concretas. RESULTADOS: Los profesionales se mostraron emocionalmente distantes de las necesidades emocionales de afectados y familiares y consideraron necesario disponer de mayor información para facilitar el diagnóstico precoz. Las familias expresaron preocupación sobre la adherencia al tratamiento, especialmente en adolescentes, y confusión sobre la importancia de seguir una dieta baja en cobre. Los afectados reconocieron tener dudas sobre la funcionalidad de la medicación. Los afectados neurológicamente se sintieron estigmatizados por las secuelas físicas de la enfermedad. CONCLUSIONES: Los sanitarios consideran que tener un mayor conocimiento sobre esta enfermedad facilitaría una detección precoz. Familiares y afectados necesitan indicaciones claras y especificadas sobre las pautas de administración del tratamiento y sobre los alimentos que deben excluir de la dieta

OBJECTIVE: Wilson disease (WD) is a rare congenital disease that causes hepatic, neurological or lenticular degeneration due to the accumulation of copper. Sometimes it is incapacitating with implications in the quality of life of those affected and their families. The objective of this work was to identify the needs of medical staff and the social and emotional needs of patients with WD and their families. METHODS: A qualitative research was developed in the Valencian Region during 2015-2016, five interviews with medical staff and two focus groups were made, one with family members and another with patients using a script divided into: diagnosis, treatment, health care and quality of life. The information was collected in audio/video and transcribed. An analysis of discourse (professional vs family/affected) determining needs was made. RESULTS: Medical staff need more knowledge about this pathology. Better educational training for them would facilitate the diagnosis. Families and patients need more information about the guidelines for the treatment's administration and foods that should be excluded from the diet. The correct administration of the treatment will allow those affected to improve their quality of life with a total or partial recovery of their symptoms. CONCLUSIONS: Peru has made significant progress in reducing chronic malnutrition in children, but it still represents a health problem due to high prevalence in the sierra and expansion to jungles districts in 2016. Policies and programs should continue and enhance to avoid the high burden of disease that generates malnutrition in the development of children

Psychiatric comorbidity in Wilson's disease.

Wilson's disease (WD) is a relatively rare autosomal recessive inherited disorder causing copper accumulation in different organs, mainly the liver and brain. Psychiatric disturbances represent a diagnostic and therapeutic issue in WD. A search for relevant articles was carried out on PubMed/Medline, Scopus, and Google Scholar, for papers focused on psychiatric disorders in WD published between 1985-2016. Ninety-two articles were included in this review, showing the findings from 35 observational and case-control studies and 57 case reports. This study discussed the findings on the prevalence of psychiatric symptoms in WD, their impact on the life of those diagnosed, and the efficacy of available treatments on the psychiatric outcomes of WD. Psychiatric disorders are confirmed frequent in WD, with a high prevalence of mood disorders, and contribute to worse Quality-of-Life and psychosocial outcomes. Because specific therapies for WD lead to a good life expectancy, adherence to medicaments and clinical monitoring should be warranted by a multidisciplinary approach, including a hepathologic, neurologic, and psychiatric careful evaluation and education of those affected and their relatives.

Cognitive and psychiatric symptoms in Wilson disease.

Wilson disease - can present with such a variety of psychiatric and cognitive symptoms that it has been named the "great masquerader." Symptoms may include cognitive deficits, impairment of executive function, mood disturbance or psychosis. These impairments may occur in different stages of the disease and with varying intensity in individual patients. This chapter reviews the literature and authors' clinical experiences of the assessment, mechanism, and prevalence of cognitive and psychiatric pathology occurring in Wilson disease. Evidence of pharmacologic and nonpharmacologic treatments is also discussed.

Hepatic features of Wilson disease.

In Wilson disease (WD) defective AT7B function leads to biliary copper excretion and pathologic copper accumulation, particularly in liver and brain, where it induces cellular damage. Liver disease most often precedes neurologic or psychiatric manifestations. In most patients with neurologic or psychiatric symptoms there is some degree of liver disease at the time of disease presentation. Hepatic manifestations of WD can be extremely variable. Patients with clinically asymptomatic WD are often found by family screening or identified on routine laboratory testing. Others may have a clinical picture of chronic active hepatitis or of end-stage liver disease with cirrhosis. A minority present with acute liver failure, often on the background of advanced fibrosis. Complications from liver disease may be related to portal hypertension and concomitant liver disease may accelerate the course of liver disease. Liver cancer may occur in patients with WD, most commonly when cirrhosis and inflammation are present. The prognosis of patients with WD is excellent, especially for those without cirrhosis at the time of diagnosis, but requires timely initiation of appropriate therapy specific for WD and for the patient's liver disease independent of WD.

Social cognition in Wilson's disease: A new phenotype?

Studies focusing on neuropsychological impairments in Wilson's disease (WD) have highlighted that patients showing neurological signs present significant deficits in a wide range of cognitive domains. Attentional and executive impairments have also been described in people with hepatic WD. However, social cognition abilities, i.e. cognitive processes required to perceive the emotions, intentions and dispositions of other people, have not been clearly investigated in WD. In this study we examined the social cognitive functioning in 19 patients with WD depending on their clinical status-Neurological versus Non-Neurological ("hepatic") forms-compared to 20 healthy controls. For the very first time, results highlighted that patients with WD had significant impairments in the three major components of social cognition: emotion recognition, Theory of Mind and attributional style. However, these deficits differ depending on the form of the disease: patients with neurological signs showed a wide range of deficits in the three components that were assessed-results notably revealed impairments in recognizing "fear", "anger", and "disgust", a significant Theory of Mind deficit and an "aggression bias"-whereas Non-Neurological patients only showed deficits on test assessing attributional bias, with a trend to react more "aggressively" to ambiguous social situations than healthy controls, as observed in Neurological WD patients, and a specific impairment in "anger" recognition. Our findings are discussed in the light of both neurocognitive impairments and brain damages, and especially those affecting the basal ganglia, as observed in people with WD.

Cognitive Abilities of Children With Neurological and Liver Forms of Wilson Disease.

Cognitive impairment in adult patients experiencing Wilson disease is now more clearly described, even in liver forms of the disease. Although this condition can appear during childhood, the cognitive abilities of children have not yet been reported in a substantial case series. This retrospective study included 21 children with Wilson disease who had undergone general cognitive assessment. The results argue in favor of a poor working memory capacity in the liver form of the disease, and more extensive cognitive impairments in its neurological form. Extensive neuropsychological investigations on all children experiencing Wilson disease are thus required.

Effects of copper toxicity on response inhibition processes: a study in Wilson's disease.

Wilson's disease (WD) is a rare genetic disease causing copper deposits in various tissues. Given the specificity of the underlying pathology, it is a good model to investigate the effects of copper toxicity on cognitive functions in humans. If left untreated, WD results in neurodegeneration and organ failure, but irrespective of potential brain damage, the medication might reduce cortical norepinephrine (NE) levels. In line with this, dysexecutive symptoms including increased impulsivity have been reported for WD patients, but the underlying mechanisms have remained elusive. We investigated inhibition and the associated neurophysiological correlates in n = 26 WD patients with mild-to-moderate clinical symptoms and matched healthy controls who completed a Go/Nogo task, while an EEG was recorded. Although the behavioral data do not show increased impulsivity in WD, the neurophysiological data show that evaluative processing of successful inhibition (as reflected by the P3 component) was strongly compromised. This was reflected by a decrease in ACC activity which was positively correlated with the severity of WD symptoms, stressing the importance of copper (toxicity) for neurocognitive functioning and impulsivity. These changes are most likely due to a combination of NE deficiency induced by WD medication as well as WD-induced brain damage. The fact that changes were still evident on a neurophysiological level suggests that neurophysiological correlates of cognitive processes and functions provide a more sensitive index of toxicity and/or treatment efficiency than purely behavioral measures.

Wilson disease: Health-related quality of life and risk for depression.

BACKGROUND: Wilson disease is an autosomal recessive disorder of copper metabolism and requires lifelong medical treatment. Therefore, the analysis of quality of life has gathered more attention. Aims of this study were to examine risk for depression and health-related quality of life in patients suffering from Wilson disease. METHODS: Sixty-eight patients were included in this retrospective cross sectional study. The Personal Health Questionnaire-9 Depression Scale was used to assess depression. The Short Form-36 Health Survey questionnaire was used to assess health-related quality of life. RESULTS: The Personal Health Questionnaire-9 indicated that 21% (14/68) of patients were at risk for major depressive disorders (scores>10) and 35% (24/68) were at risk for mild depression (scores 5-9). Women had significantly lower life quality scores than men. Primary neurologic disease manifestation was associated with significantly lower total Short Form-36 and subdimension scores compared with primary hepatic or mixed presentation. Overall, patients with Wilson disease experienced higher quality of life than patients with other chronic liver diseases. CONCLUSIONS: As patients with Wilson disease have a high risk for depressive disorders, active assessment for depression is mandatory. Patients with primary neurological symptoms are at higher risk for reduction of life quality.