Memantine alleviates cognitive impairment and hippocampal morphology injury in a mouse model of chronic alcohol exposure

Alcohol-related cognitive impairment (ARCI) is highly prevalent among patients with alcohol abuse and dependence. The pathophysiology of ARCI, pivotal for refined therapeutic approaches, is not fully elucidated, posing a risk of progression to severe neurological sequelae such as Korsakoff's syndrome (KS) and Alcohol-Related Dementia (ARD). This study ventures into the underlying mechanisms of chronic alcohol-induced neurotoxicity, notably glutamate excitotoxicity and cytoskeletal disruption, and explores the therapeutic potential of Memantine, a non-competitive antagonist of the N-methyl-d-aspartate (NMDA) receptor known for its neuroprotective effect against excitotoxicity. Our investigation centers on the efficacy of Memantine in mitigating chronic alcohol-induced cognitive and hippocampal damages in vivo. Male C57BL/6J mice were subjected to 30 % (v/v, 6.0 g/kg) ethanol via intragastric administration alongside Memantine co-treatment (10 mg/kg/day, intraperitoneally) for six weeks. The assessment involved Y maze, Morris water maze, and novel object recognition tests to evaluate spatial and recognition memory deficits. Histopathological evaluations of the hippocampus were conducted to examine the extent of alcohol-induced morphological changes and the potential protective effect of Memantine. The findings reveal that Memantine significantly improves chronic alcohol-compromised cognitive functions and mitigates hippocampal pathological changes, implicating a moderating effect on the disassembly of actin cytoskeleton and microtubules in the hippocampus, induced by chronic alcohol exposure. Our results underscore Memantine's capability to attenuate chronic alcohol-induced cognitive and hippocampal morphological harm may partly through regulating cytoskeleton dynamics, offering valuable insights into innovative therapeutic strategies for ARCI.

Criminal behavior in alcohol-related dementia and Wernicke-Korsakoff syndrome: a Nationwide Register Study

BACKGROUND

Chronic heavy alcohol use may lead to permanent brain damage, cognitive impairment, and dementia. While the link between alcohol use and crime is strong, virtually no research exists on the criminal behavior of patients with the alcohol-related neurocognitive disorders of Wernicke-Korsakoff syndrome (WKS) and alcohol-related dementia (ARD).

METHODS

The study population included all persons diagnosed with WKS (n = 1149) or ARD (n = 2432) in Finland in 1998-2015. Data on diagnoses, mortality, and crime were obtained from Finnish nationwide registers. Crime incidences were calculated 4 years before and after diagnosis. Crime types, incidences, and mortality were compared between disorders and with the general population.

RESULTS

Altogether 35.6% of WKS patients and 23.6% of ARD patients had committed crimes in the 4 years preceding diagnosis, most commonly property and traffic crimes, followed by violent crimes. The incidence of criminal behavior decreased significantly after diagnosis; in WKS patients, the standardized criminality ratio (SCR), the ratio of observed to expected number of crimes (95% CI), was 3.91 (3.72-4.10) in 4 years before and 2.80 (2.61-3.00) in 4 years after diagnosis. Likewise, in ARD patients, the SCRs were 2.63 (2.51-2.75) before and 0.84 (0.75-0.92) after diagnosis. No significant difference emerged in mortality between persons with and without a criminal history.

CONCLUSIONS

Persons with alcohol-related neurocognitive disorders frequently engage in criminal behavior prior to diagnosis, especially multiple offending. In the 4 years before and after diagnosis, crime rates declined in a linear fashion, with a marked reduction after diagnosis.

Acute amnestic syndrome in fornix lesions: a systematic review of reported cases with a focus on differential diagnosis

Introduction

Acute amnestic syndrome is an uncommon clinical presentation of neurological disease. Differential diagnosis encompasses several syndromes including Wernicke-Korsakoff and transient global amnesia (TGA). Structural lesions of the fornix account for a minority of cases of acute amnestic syndromes. Etiology varies from iatrogenic injury to ischemic, inflammatory, or neoplastic lesions. A prompt diagnosis of the underlying pathology is essential but challenging. The aim of this review is to systematically review the existing literature regarding cases of acute amnestic syndrome associated with non-iatrogenic lesions of the fornix.

Methods

We performed a systematic literature search on PubMed, Scopus, and Web of Science up to September 2023 to identify case reports and case series of patients with amnestic syndrome due to fornix lesions. The systematic review was conducted according to PRISMA guidelines. The research was limited to articles written in English. Cases of fornix damage directly ascribable to a surgical procedure were excluded.

Results

A total of 52 publications reporting 55 cases were included in the review. Focusing on acute/subacute onset, vascular etiology was highly prevalent, being responsible for 78% of cases, 40/55 (74%) of which were due to acute ischemic stroke. The amnestic syndrome was characterized by anterograde amnesia in all patients, associated with retrograde amnesia in 27% of cases. Amnesia was an isolated presentation in most cases. Up to two thirds of patients had persistent memory deficits of any severity at follow-up.

Discussion

Acute amnestic syndrome can be rarely caused by fornix lesions. In most cases of acute/subacute presentation, the etiology is ischemic stroke, mainly caused by strokes involving the subcallosal artery territory. The differential diagnosis is challenging and a distinction from common mimics is often difficult on a clinical basis. A high index of suspicion should be maintained to avoid misdiagnosis and provide adequate acute treatment to patients with time-dependent disease, also employing advanced neuroimaging. More research is needed to better understand the outcome and identify prognostic factors in patients with amnestic syndrome due to fornix lesions.

"I Genuinely Believe This Is the Most Stigmatised Group within the Social Care Sector"-Health and Social Care Professionals' Experiences of Working with People with Alcohol-Related Brain Damage: A Qualitative Interview Study

Appropriate diagnosis, treatment and care contribute to better service engagement, improvements to wellbeing, cost savings and reductions in morbidity and mortality for people with alcohol-related brain damage. In Northeast England, large amounts of alcohol are consumed; this is reflected in the number of alcohol-related deaths in the region. However, the pathway for people with alcohol-related brain damage to receive diagnosis, treatment and care is unknown and could be unwittingly influenced by stigma. Qualitative, in-depth, semi-structured interviews were completed with 25 health and social care professionals from organizations involved with people with alcohol-related brain damage recruited via snowball sampling. Interviews were recorded, transcribed verbatim, coded, and analysed. People with alcohol-related brain damage were found to be stigmatised by both society and professionals, inhibiting their entry into services. Therefore, alcohol-related brain damage remains underdiagnosed and misdiagnosed. There was found to be no dedicated service; silos with revolving doors and underfunded generic care with long waiting lists typically exclude those with alcohol-related or neurological problems. Reducing stigmatising processes associated with alcohol-related brain damage could counteract professionals' reluctance to provide care.

Wernicke Encephalopathy: An Updated Narrative Review

Wernicke's encephalopathy (WE) and Korsakoff Syndrome (KS) are distinct neurological disorders that may have overlapping clinical features. Due to the overlap, they are collectively known as Wernicke-Korsakoff syndrome. WE is related to diencephalic and mesencephalic dysfunction due to thiamine. WE typically manifests as confusion, ophthalmoplegia, nystagmus, and gait ataxia (Wernicke's triad), although they may not consistently occur together. Although WE mostly occurs in alcoholics, other etiologies, such as post-bariatric surgery, must be considered. Early diagnosis and therapy by intravenous thiamine are essential to prevent WE complications and to reduce morbidity and mortality. Therefore, physicians' and patients' awareness of WE is essential for early diagnosis and therapy. Accordingly, this narrative review aimed to provide an update on WE by reviewing articles published between April 2015 to April 2022 about the etiology, pathophysiology, diagnosis, and WE management updates. EMBASE, PubMed, Google Scholar, Google, and Scopus search engines were used to conduct the literature search.

Antipsychotic Use and Mortality in Persons with Alcohol-Related Dementia or Wernicke-Korsakoff Syndrome: A Nationwide Register Study in Finland

BACKGROUND

Research on the use of psychotropic drugs in people with alcohol-related neurocognitive disorders is virtually nonexistent. We examined the prevalence of antipsychotic drug use and its effect on mortality among patients with Wernicke-Korsakoff syndrome (WKS) or alcohol-related dementia (ARD).

METHODS

In this nationwide register study, we collected data on the medication use and mortality of all persons aged ≥40 diagnosed with WKS (n = 1149) or ARD (n = 2432) between 1998 and 2015 in Finland. We calculated the prevalence of antipsychotic use within one year of diagnosis and the adjusted cumulative mortality of antipsychotic users versus non-users in relation to the age-, sex-, and calendar year-matched general population.

RESULTS

Of the WKS and ARD patients, 35.9% and 38.5%, respectively, purchased one or more antipsychotic drugs in the year following diagnosis. The adjusted cumulative mortality of the antipsychotic users was significantly lower than that of non-users in both the WKS and ARD groups, where the adjusted hazard ratios (95% CI) were 0.85 (0.72-0.99) and 0.73 (0.65-0.81), respectively. WKS and ARD patients using antipsychotics were less likely to die of alcohol-related causes than antipsychotic non-users, but the difference was significant only in the ARD group.

CONCLUSIONS

This population-based study shows that antipsychotic use is common in patients with WKS or ARD. In contrast to other dementia studies, our results indicate that the mortality of antipsychotic users is significantly lower than that of non-users. The lower mortality could be explained by decreased alcohol use and better healthcare coverage in antipsychotic users.

A Clinician's View of Wernicke-Korsakoff Syndrome

The purpose of this article is to improve recognition and treatment of Wernicke-Korsakoff syndrome. It is well known that Korsakoff syndrome is a chronic amnesia resulting from unrecognized or undertreated Wernicke encephalopathy and is caused by thiamine (vitamin B1) deficiency. The clinical presentation of thiamine deficiency includes loss of appetite, dizziness, tachycardia, and urinary bladder retention. These symptoms can be attributed to anticholinergic autonomic dysfunction, as well as confusion or delirium, which is part of the classic triad of Wernicke encephalopathy. Severe concomitant infections including sepsis of unknown origin are common during the Wernicke phase. These infections can be prodromal signs of severe thiamine deficiency, as has been shown in select case descriptions which present infections and lactic acidosis. The clinical symptoms of Wernicke delirium commonly arise within a few days before or during hospitalization and may occur as part of a refeeding syndrome. Wernicke encephalopathy is mostly related to alcohol addiction, but can also occur in other conditions, such as bariatric surgery, hyperemesis gravidarum, and anorexia nervosa. Alcohol related Wernicke encephalopathy may be identified by the presence of a delirium in malnourished alcoholic patients who have trouble walking. The onset of non-alcohol-related Wernicke encephalopathy is often characterized by vomiting, weight loss, and symptoms such as visual complaints due to optic neuropathy in thiamine deficiency. Regarding thiamine therapy, patients with hypomagnesemia may fail to respond to thiamine. This may especially be the case in the context of alcohol withdrawal or in adverse side effects of proton pump inhibitors combined with diuretics. Clinician awareness of the clinical significance of Wernicke delirium, urinary bladder retention, comorbid infections, refeeding syndrome, and hypomagnesemia may contribute to the recognition and treatment of the Wernicke-Korsakoff syndrome.

Incidence and mortality of alcohol-related dementia and Wernicke-Korsakoff syndrome: A nationwide register study

BACKGROUND

Epidemiological data on alcohol-related cognitive disorders are scarce. Up-to-date population-based incidence and mortality rates for Wernicke-Korsakoff syndrome (WKS) and alcohol-related dementia (ARD) are necessary to understand the burden of these diseases.

METHODS

We collected diagnostic data from the Finnish Hospital Discharge Register and mortality data from Statistics Finland for all persons aged ≥40 years who had received a diagnosis of WKS (n = 1149) or ARD (n = 2432) between 1998 and 2015 in Finland. We calculated the incidences and mortality in relation to the age-, sex- and calendar year-matched general population. Causes of death were ascertained from death certificates.

RESULTS

For WKS, the incidence per 100,000 person-years (95% confidence interval (CI)) was 3.7 (3.4-3.9) in men and 1.2 (1.1-1.3) in women. For ARD, the incidence was 8.2 (7.9-8.6) in men and 2.1 (1.9-2.3) in women. The incidence of WKS peaked in people aged 50-59 years and the incidence of ARD in people aged 70-79 years. The standardized mortality ratio (95% CI) was 5.67 (5.25-6.13) in WKS patients and 5.41 (5.14-5.70) in ARD patients. Most of the excess mortality resulted from alcohol-related causes.

CONCLUSIONS

To our knowledge, this is the first study describing population-based incidence and mortality rates, sex-segregated data and causes of death in patients with WKS or ARD. Our results establish a point of reference for the incidence of WKS and ARD and show the high mortality and poor prognosis of these disorders.

Wernicke-Korsakoff syndrome and other diseases associated with thyamine deficiency

Wernicke-Korsakoff syndrome is the best known consequence of thiamine deficiency, frequently associated with patients with chronic and excessive alcohol consumption, but it can be produced by any cause that produces thiamine deficiency. The disease is underdiagnosed so it is essential to have a high clinical suspicion, mainly in patients who do not have alcohol consumption as a risk factor. For this, the diagnosis continues to be eminently clinical, with the difficulty of high clinical variability. Complementary tests are used to support the diagnosis and rule out other causes that can produce similar symptoms, with magnetic resonance imaging being the most cost-effective imaging test. Treatment is based on the administration of thiamine, which should be started early, and parenterally at the appropriate doses, in all patients with compatible symptoms, without waiting to confirm the diagnosis.

Alcoholic Liver Disease Among Patients with Wernicke Encephalopathy: A Multicenter Observational Study

BACKGROUND

data regarding the association between Wernicke encephalopathy (WE) and alcoholic liver disease (ALD) are scarce in spite of alcohol consumption being the main risk factor for WE.

AIMS

to describe the frequency of ALD in a cohort of patients diagnosed with WE and alcohol use disorders (AUDs) and to compare the characteristics of WE patients with and without ALD.

METHODS

we conducted an observational study in 21 centers through a nationwide registry of the Spanish Society of Internal Medicine. WE Caine criteria were applied and demographic, clinical, and outcome variables were analyzed.

RESULTS

434 patients were included in the study, of which 372 were men (85.7%), and the mean age was 55 ± 11.8 years. ALD was present in 162 (37.3%) patients and we found a higher percentage of cases with tremor, flapping and hallucinations in the ALD group. A total of 22 patients (5.0%) died during admission (7.4% with ALD vs 3.7% without ALD; P = 0.087). Among the ALD patients, a relationship between mortality and the presence of anemia (Odds ratio [OR]=4.6 Confidence interval [CI]95% 1.1-18.8; P = 0.034), low level of consciousness (OR=4.9 CI95% 1.1-21.2; P = 0.031) and previous diagnosis of cancer (OR=10.3 CI95% 1.8-59.5; P = 0.009) was detected. Complete recovery was achieved by 27 patients with ALD (17.8%) and 71 (27.8%) without ALD (P = 0.030).

CONCLUSION

the association of WE and ALD in patients with AUDs is frequent and potentially linked to differences in clinical presentation and to poorer prognosis, as compared to alcoholic patients with WE without ALD.

Low rates of thiamine prescribing in adult patients with alcohol-related diagnoses in the emergency department

Background: Alcohol use disorder (AUD) is associated with thiamine deficiency and Wernicke-Korsakoff Syndrome (WKS). Thiamine supplementation for the prevention of WKS in patients with suspected AUD in the Emergency Department (ED) is generally recommended. As alcohol-related diagnoses are frequent reasons for visits to EDs, ED thiamine prescribing practices are relevant to the overall management and prevention of WKS in patients with AUD.Objective: To determine the prescription rates of thiamine to patients with alcohol-related diagnoses in the ED.Methods: This was a retrospective chart review conducted at two New York City urban teaching hospitals from January 1 to December 31, 2017. All patients 18 years or older who were given an alcohol-related diagnosis (all F10 ICD-10-CM codes) upon disposition were included. Collected data included details of thiamine prescribing practices, patient demographics and patient disposition.Results: A total of 7,529 patient visits with an alcohol-related diagnosis were identified. The overall median age of included patients was 44; 5747 (76.3%) patient visits were by men; 310 (4.1%) patient visits resulted in admission. Out of all patient visits, thiamine was ordered during 167 (2.2%) visits, with thiamine administered parenterally during 129 (77.2%) visits and orally in 38 (22.8%) visits. Out of patient visits specifically associated with an F10.2 (Alcohol Dependence) diagnosis, thiamine was ordered during 105 (17.8%) visits.Conclusion: We found a very low rate of thiamine prescribing during patient visits associated with alcohol-related diagnoses. This may be a missed opportunity to reduce morbidity and mortality among AUD ED patients.

Thiamine deficiency in the outpatient psychiatric oncology setting: A case series

OBJECTIVE

B vitamins are essential for the functioning of the nervous system. Vitamin B1 (thiamine) deficiency is associated with neuropsychiatric syndromes such as Wernicke's encephalopathy (WE), which, if untreated, has an estimated mortality of 17-20%. Although the prevalence of thiamine deficiency in the general population is difficult to estimate, it is being increasingly recognized in oncology, especially in the inpatient setting. We describe three cases of thiamine deficiency (TD) in the outpatient psychiatric oncology setting.

METHOD

Retrospective chart review of three adult patients, who were seen in the psychiatric oncology clinic and found to have TD on laboratory testing, was done. Patient, disease, and thiamine treatment-related information were obtained, and descriptive statistics were used to analyze the data.

RESULTS

The average age was 59 years, mean body mass index (BMI) was 22.00 ± 4.58 (mean ± SD), and mean thiamine level was 59.10 ± 7.69 that ranged from 45 to 68 nmol/L (normal thiamine level reference: 70-180 nmol/L). None of the patients had brain imaging nor cerebrospinal fluid analysis. Risk factors such as unbalanced nutrition, prior GI surgery, renal disease, and chemotherapy were noted.

SIGNIFICANCE OF RESULTS

TD can have a multifactorial etiology in oncology. Identification of TD in both inpatient and outpatient setting is important. Our report highlights how early identification of TD in the outpatient setting can help prevent further clinical progression.

Identifying, Assessing, and Treating Korsakoff Syndrome Patients: Updated Perspectives

ABSTRACT

Objectives consist of updating published reports on the recognition, assessment, and care of patients with Wernicke-Korsakoff syndrome (WKS). Methods included defining relevant terms, describing core clinical phenomena, conducting meaningful reviews for latter-day WKS publications, and selecting instructive case examples. Findings covered epidemiology, precipitants, neuroimaging studies, alternate learning strategies in WKS, adjunctive treatments, and promising research. In conclusion, patients, their family members, clinicians, and public health experts should benefit from this updated knowledge. Countries with substantial alcohol consumption should consider emulating Holland in designating WKS research centers, founding regional clinical facilities, and funding multidisciplinary expert teams.

Wernicke-Korsakoff syndrome despite no alcohol abuse: A summary of systematic reports

BACKGROUND

Wernicke-Korsakoff syndrome (WKS) is a neurological disorder typically found in alcohol use disorder. The fact that it also occurs in nonalcoholic patients is less well known and often ignored. For the first time, this review offers a systematic investigation of the frequency and associated features of nonalcoholic WKS in the published literature.

METHOD

We included 11 recent systematic reports, with a total of 586 nonalcoholic WKS cases following hyperemesis gravidarum (n = 177), cancer (n = 129), bariatric surgery (n = 118), hunger strike (n = 41), soft drink diet in children (n = 33), depression (n = 21), Crohn's disease (n = 21), schizophrenia (n = 15), anorexia nervosa (n = 12), ulcerative colitis (n = 10), and incidental thiamine-deficient infant formula (n = 9).

FINDINGS

Vomiting and extreme weight loss were strong predictors of nonalcoholic WKS in adults. Blurred vision was a common presenting sign in about one-fourth of the patients. The classic triad of WKS is characterized by confusion, ataxia, and eye-movement disorders. All reviewed studies reported high percentages of patients presenting with an altered mental status, while both motor symptoms were variably present.

INTERPRETATION

The foregoing observations led to several important conclusions. First, we can see that nutritional impoverishment leads to profound brain damage in the form of WKS. Second, it seems that physicians are either unaware of or underestimate the risks for nonalcoholic WKS. Physicians must be specifically vigilant in detecting and treating WKS in patients with sudden and severe weight loss and vomiting. Third, lower doses of thiamine frequently lead to chronic Wernicke-Korsakoff syndrome. We noticed that when thiamine treatment for WKS was administered, in many cases doses were too low. In line with proven interventions we therefore recommend a parenteral thiamine treatment of 500 mg 3 times per day in adults.

Restrictive diet in a patient with irritable bowel syndrome leading to Wernicke encephalopathy

Background

We present a case of a woman with a past medical history of irritable bowel syndrome (IBS) and anxiety, who presents with ophthalmoplegia, ataxia and memory loss, characteristic of Wernicke encephalopathy.

Case presentation

A 64-year-old woman presented with double vision, unsteady gait and memory loss. These symptoms began after 3 months on an unfortified restricted diet, which she initiated to alleviate IBS symptoms. Magnetic resonance imaging of the brain demonstrated hyperintense T2-weighted signal in the dorsomedial aspect of bilateral thalami, periaqueductal grey matter and around the third ventricle. The patient’s visual symptoms improved significantly after thiamine supplementation, although her memory deficits persisted.

Conclusion

Although WE is often associated with chronic alcohol abuse, this case demonstrates the importance of recognizing WE in any patient with a restricted diet and subsequent timely initiation of thiamine.

A systematic review of treatments for alcohol-related cognitive impairment: lessons from the past and gaps for future interventions

Alcohol-related cognitive impairment (ARCI) is highly prevalent among patients with alcohol dependence. Although it negatively influences treatment outcome, this condition is underdiagnosed and undertreated. The aim of this systematic review is to investigate the existing evidence regarding both cognitive and pharmacological interventions for ARCI. We systematically reviewed PubMed, Scopus and Science direct databases up to May 2019 and followed the PRISMA guidelines. The quality of the studies was assessed using the Jadad Scale. Twenty-six studies were eligible for inclusion (14 referring to neuropsychological interventions and 12 to pharmacological treatments). Among neuropsychological interventions, computerised treatments, errorless learning and component method showed positive effects on working memory, memory measures and general cognitive function. On the other hand, thiamine, memantine and methylphenidate improved working memory, long-term memory and general cognitive function. Nevertheless, these studies have several limitations, such as small sample size, lack of replication of the results or low specificity of the interventions. Therefore, no gold-standard intervention can yet be recommended for clinical practice, and further research based on promising strategies (e.g. digital interventions, thiamine) is required.

Health problems and care needs in patients with Korsakoff's syndrome: A systematic review

WHAT IS KNOWN ON THE SUBJECT?: Patients with Korsakoff's syndrome suffer from a broad range of comorbid somatic and/or psychiatric conditions. The various health problems in patients with Korsakoff's syndrome limit their ability to perform daily activities and also negatively affect their social functioning. WHAT THE PAPER ADDS TO EXISTING KNOWLEDGE?: Patients with Korsakoff's syndrome have complex somatic and psychiatric comorbid conditions co-occurring with behavioural and functional problems. They are compounded by patients' poor self-awareness regarding their health status and functioning. WHAT ARE THE IMPLICATIONS FOR PRACTICE?: This review demonstrates that patients with Korsakoff's syndrome should receive integrated care. Integrated care for patients with Korsakoff's syndrome should be based on accurate multidimensional and multidisciplinary diagnostics in which nurses and nurse assistants have a prominent role due to their central position in the care process patients with Korsakoff's syndrome. ABSTRACT: Introduction The literature shows that Korsakoff's syndrome is associated with a wide range of severe comorbid somatic and psychiatric health problems that lead to care needs in several domains of functioning. Aim To provide a comprehensive overview of Korsakoff patients' health conditions and related care needs. Method Following the PRISMA guidelines, we searched MEDLINE, PsycInfo, Cochrane Library and CINAHL up to January 2019. After applying our inclusion criteria, two reviewers independently selected the studies, extracted the data and assessed methodological quality. Results Twelve articles were included. The commonest somatic comorbid conditions were liver disease, cardiovascular disease, COPD and diabetes mellitus. The commonest psychiatric comorbid conditions were mood disorder, personality disorder and psychotic disorder. Anxiety, aggressive/agitated behaviour, depressive symptoms and care needs in social functioning and (instrumental) activities of daily living were also very commonly reported. Discussion In patients with Korsakoff's syndrome, somatic and psychiatric comorbid conditions co-occur with behavioural and functional problems. They are compounded by patients' poor self-awareness regarding their health status and functioning. Adequate responses to their care needs require high-quality integrated care. Implications for practice Patients with Korsakoff's syndrome should receive integrated care based on accurate multidimensional and multidisciplinary diagnostics in which nurses have a prominent role.

Atypical presentation of a forgotten disease: refractory hypotension in beriberi

BACKGROUND/OBJECTIVES

Thiamine deficiency is a treatable disease with an excellent prognosis. However, it is often unrecognized because of the diversity of its clinical presentations.

SUBJECTS/METHODS

Herein, we report two atypical cases of nonalcoholic thiamine deficiency that presented with refractory hypotension in the absence of lactic acidosis.

RESULTS

Case 1 developed recurrent hypotension, right-sided heart failure, and a classic triad of Wernicke's encephalopathy (WE) after gastrointestinal surgery. Case 2 had decreased dietary intake and diuretic abuse, and had multiple episodes of syncope prior to present admission with refractory hypotension and mental status changes. The diagnosis of both cases was confirmed by undetectable pretreatment serum thiamine and dramatic improvement with thiamine replacement.

CONCLUSIONS

In this report, we highlight refractory hypotension as a complication of, not only cardiovascular, but also neurologic beriberi. Moreover, thiamine replacement should be considered without delay in hypotensive patients with signs of WE and/or risk factors for beriberi.

The prognosis of out-patient alcohol treatment among parents with childcare responsibility

BACKGROUND

Despite expansive knowledge on the detrimental effects of growing up with parents with alcohol use disorders (AUDs), little is known about the prognosis of alcohol treatment among parents with childcare responsibility.

AIMS

This observational cohort study aimed to examine the prognosis of patients with and without childcare responsibility, in a conventional out-patient alcohol treatment clinic.

METHOD

A consecutive AUD sample (N = 2201), based on ICD-10 Diagnostic Criteria for Research, was assessed with the European Addiction Severity Index during the clinical routine, at treatment entry and conclusion. Data on addiction severity, treatment course and drinking outcomes were derived, and adjusted odds ratios (AORs) were calculated with logistic-regression models. Drinking outcomes were compared in an intention-to-treat analysis, including all patients in a logistic regression with inverse probability weighting.

RESULTS

Patients with childcare responsibility (aged <18 years) had a less severe addiction profile and lower drop-out rate compared with patients without children or with children living out-of-home. They were also more likely to improve on all drinking-related outcomes, including abstinence (AOR 2.68, 95% CI 1.82-3.95), number of drinking days (AOR 2.45, 95% CI 1.50-4.03) and excessive drinking days (AOR 4.66, 95% CI 2.36-9.17); and those with children living out-of-home had better outcomes on abstinence (AOR 1.59, 95% CI 1.08-2.34) than patients without children.

CONCLUSIONS

Childcare responsibility among out-patients was associated with better treatment course and outcomes than those without or not living with their children. This knowledge can help guide clinical practice, effectuate interventions and inform social authorities.

Effects of Alcohol on the Brain in Cirrhosis: Beyond Hepatic Encephalopathy

Recent advances have led to a greater understanding of how alcohol alters the brain, both in acute stages (intoxication and alcohol withdrawal) and in chronic misuse. This review focuses on the current understanding of how alcohol affects the brain in cirrhosis patients with and without hepatic encephalopathy (HE). Chronic alcohol use is associated with nutritional deficiencies, dementia, cirrhosis, and decompensating events such as HE. Direct toxicity on brain tissue, induction of neuro-inflammation, and alcohol's alterations of the gut microbiome are possible mechanisms for the clinical features of HE associated with alcohol use. Acute management of the alcoholic cirrhosis patient with altered mental status should focus on ruling out other causes, best intensive care, and use of gut-based therapies such as lactulose and rifaximin. Long-term management centers on optimizing treatment of concurrent mood disorders, nutritional support, and medical management of complications associated with cirrhosis. Future studies are needed to clarify mechanisms of brain injury in concomitant alcohol misuse and HE in addition to designing treatment interventions in order to improve outcomes in these patients.