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https://www.readbyqxmd.com/read/28524123/-a-clinical-and-neuropsychological-study-of-patients-before-and-after-resection-of-third-ventricle-colloid-cysts
#1
S B Buklina, A N Konovalov, D I Pitskhelauri, M A Shkarubo, A A Poddubskaya, M V Kolycheva
The literature lacks studies of cognitive impairments in large groups of patients after resection of third ventricle colloid cysts. AIM: To evaluate cognitive impairments in patients before and after resection of third ventricle colloid cysts. MATERIAL AND METHODS: We performed a clinical and neuropsychological study of 52 patients with third ventricle colloid cysts using the Luria method (1962). Forty three patients were examined before and after cyst resection in the early postoperative period (three patients in this group were also examined in a long-term period of 3-7 months after surgery)...
2017: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/28465069/the-role-of-nondeclarative-memory-in-the-skill-for-language-evidence-from-syntactic-priming-in-patients-with-amnesia
#2
Evelien Heyselaar, Katrien Segaert, Serge J W Walvoort, Roy P C Kessels, Peter Hagoort
Syntactic priming, the phenomenon in which participants adopt the linguistic behaviour of their partner, is widely used in psycholinguistics to investigate syntactic operations. Although the phenomenon of syntactic priming is well documented, the memory system that supports the retention of this syntactic information long enough to influence future utterances, is not as widely investigated. We aim to shed light on this issue by assessing patients with Korsakoff's amnesia on an active-passive syntactic priming task and compare their performance to controls matched in age, education, and premorbid intelligence...
April 29, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28430846/a-case-of-bariatric-surgery-related-wernicke-korsakoff-syndrome-with-persisting-anterograde-amnesia
#3
Philip Gerard Gasquoine
Objective: To describe the theoretical and clinical implications of the neuropsychological evaluation of a case of bariatric surgery-related Wernicke-Korsakoff syndrome. Method: The patient was a 37-year old, female, bilingual, bachelor's degree educated, Mexican American public relations consultant without preexisting psychiatric, neurological, or substance abuse history. Recovery from laparoscopic sleeve gastrectomy surgery for morbid obesity was complicated by intraabdominal abscess, multibacterial infection, and prolonged nausea and vomiting...
April 20, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28413748/thiamine-assays-advances-challenges-and-caveats
#4
REVIEW
Katie A Edwards, Nicole Tu-Maung, Krystal Cheng, Binbin Wang, Antje J Baeumner, Clifford E Kraft
Thiamine (vitamin B1) is essential to the health of all living organisms and deficiency has long been associated with diseases in animals such as fish, birds, alligators, and domesticated ruminant mammals. Thiamine is also implicated in several human diseases including Alzheimer's, diabetes, dementia, depression and, most notably, Wernicke-Korsakoff syndrome and Beriberi disease. Yet, highly sensitive and specific detection of thiamine remains an analytical challenge, as pM to nm levels of thiamine need to be detected in environmental and human samples, respectively, various phosphorylated variants need to be discriminated, and rapid on-site detection would be highly desirable...
April 2017: ChemistryOpen
https://www.readbyqxmd.com/read/28412877/retrospective-time-perception-in-korsakoff-s-syndrome
#5
Mohamad El Haj, Jean-Louis Nandrino, Roy P C Kessels, Christian Matton, Jean-Eudes Bacquet, Laurent Urso, Pascal Antoine
The authors investigated retrospective timing in participants with Korsakoff's syndrome. Patients were assessed on four retrospective tasks on which they were instructed to read three-digit numbers aloud (15 seconds), fill connected squares (30 seconds), decide whether words were abstract or concrete (45 seconds), or read aloud a text about mushroom picking (60 seconds). Participants were not aware of the task's timing until the end of the tasks, when they were asked to estimate the elapsed time. Results revealed an underestimation of the elapsed time in Korsakoff participants, suggesting that time is perceived to pass quickly for these participants...
April 17, 2017: Journal of Neuropsychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/28365885/the-spectrum-of-vestibular-and-ocular-motor-abnormalities-in-thiamine-deficiency
#6
REVIEW
Jorge C Kattah
PURPOSE: The first aim of this review is to summarize recent ocular motor signs in pre-encephalopathy patients with nutritional deficiency at risk of thiamine deficiency. Timely recognition of thiamine depletion in these patients, who may have a normal brain MRI, could lead to appropriate management and prevention of Wernicke's encephalopathy (WE) with full recovery. The second aim is to incorporate recent diagnostic testing on the revised WE diagnostic criteria and the identification of patients who may show slow, partial, or no response to treatment...
May 2017: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/28351256/wernicke-korsakoff-syndrome-recognition-and-treatment
#7
Alexander Donnelly
Wernicke-Korsakoff syndrome is a potentially debilitating and fatal condition that is caused by thiamine (vitamin B1) deficiency in the brain. It can be treated effectively or prevented completely; however, the condition is often undiagnosed and inadequately managed. Wernicke-Korsakoff syndrome is commonly considered to be specific to individuals who misuse alcohol; however, there are many other predisposing factors and causes associated with the condition. This article aims to raise awareness of Wernicke-Korsakoff syndrome, to enable nurses in all practice settings to recognise the signs, symptoms and risk factors associated with the condition and be informed about available treatments...
March 29, 2017: Nursing Standard
https://www.readbyqxmd.com/read/28350154/-wernicke-encephalopathy-and-dry-beriberi-late-complications-after-bariatric-surgery-performed-on-a-patient-with-a-psychiatric-history
#8
G E M Penders, I M Daey Ouwens, F M M A van der Heijden
A 38-year-old woman was admitted in a psychiatric hospital because of memory disorders. Dry beriberi and Korsakoff's syndrome, as a late neuropsychiatric manifestation of Wernicke's encephalopathy, were established. The beriberi symptoms decreased slowly, but the patient's memory impairments persisted. These clinical features were caused by a thiamine deficiency. Gastric bypass surgery is associated with an increased risk of thiamine deficiency. Excessive alcohol consumption and poor compliance with vitamin deficiency treatment both contributed to the rapid onset of these disorders...
2017: Tijdschrift Voor Psychiatrie
https://www.readbyqxmd.com/read/28340112/long-term-mortality-of-patients-with-an-alcohol-related-wernicke-korsakoff-syndrome
#9
Arantza Sanvisens, Paola Zuluaga, Daniel Fuster, Inmaculada Rivas, Jordi Tor, Miguel Marcos, Antonio J Chamorro, Roberto Muga
Aims: To characterize a series of contemporary patients with alcohol-related Wernicke's encephalopathy (WE) or Korsakoff's syndrome (KS) and to update the current prognosis of disease. Methods: Retrospective and prospective study of patients diagnosed with an alcohol-related WE or KS between 2002 and 2011 in a tertiary hospital. Socio-demographic, alcohol use characteristics, signs and symptoms, co-morbidity and blood parameters were obtained at admission. Patients were followed up until 2013 and causes of death were ascertained through the review of charts...
March 10, 2017: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/28316271/visuospatial-declarative-learning-despite-profound-verbal-declarative-amnesia-in-korsakoff-s-syndrome
#10
Erik Oudman, Albert Postma, Tanja C W Nijboer, Jan W Wijnia, Stefan Van der Stigchel
Korsakoff's syndrome (KS) is a neuropsychiatric disorder characterised by severe amnesia. Although the presence of impairments in memory has long been acknowledged, there is a lack of knowledge about the precise characteristics of declarative memory capacities in order to implement memory rehabilitation. In this study, we investigated the extent to which patients diagnosed with KS have preserved declarative memory capacities in working memory, long-term memory encoding or long-term memory recall operations, and whether these capacities are most preserved for verbal or visuospatial content...
March 20, 2017: Neuropsychological Rehabilitation
https://www.readbyqxmd.com/read/28292462/source-monitoring-in-korsakoff-s-syndrome-did-i-touch-the-toothbrush-or-did-i-imagine-doing-so
#11
Mohamad El Haj, Jean Louis Nandrino, Yann Coello, Ralph Miller, Pascal Antoine
There is a body of research suggesting compromised ability to distinguish between different external sources of information (i.e., external monitoring) in Korsakoff's syndrome. Here we replicate and extend this literature by assessing the ability of patients with Korsakoff's syndrome to distinguish between different external sources of information (i.e., external monitoring), between internal and external sources of information (i.e., reality monitoring), and between different internal sources of information (i...
February 24, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28289650/repetitive-transcranial-magnetic-stimulation-for-wernicke-korsakoff-syndrome-a-case-report
#12
So Won Chung, Shin Who Park, Young Jae Seo, Jae-Hyung Kim, Chan Ho Lee, Jong Youb Lim
A 57-year-old man who was diagnosed with Wernicke-Korsakoff syndrome showed severe impairment of cognitive function and a craving for alcohol, even after sufficient supplementation with thiamine. After completing 10 sessions of 10 Hz repetitive transcranial magnetic stimulation (rTMS) at 100% of the resting motor threshold over the left dorsolateral prefrontal cortex, dramatic improvement in cognitive function and a reduction in craving for alcohol were noted. This is the first case report of the efficacy of a high-frequency rTMS in the treatment of Wernicke-Korsakoff syndrome...
February 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28225048/thiamine-deficiency-oxidative-metabolic-pathways-and-ethanol-induced-neurotoxicity-how-poor-nutrition-contributes-to-the-alcoholic-syndrome-as-marchiafava-bignami-disease
#13
REVIEW
L M P Fernandes, F R Bezerra, M C Monteiro, M L Silva, F R de Oliveira, R R Lima, E A Fontes-Júnior, C S F Maia
Ethanol is an important risk factor for the occurrence of several brain disorders that depend on the amount, period and frequency of its consumption. Chronic use of ethanol often leads to the development of neurodegenerative syndromes, which cause morphological and functional impairments such as foetal alcohol syndrome in newborns exposed to ethanol during pregnancy, Wernicke-Korsakoff Syndrome and, more rarely, Marchiafava-Bignami disease (MBD). MBD is characterized by primary degeneration of the corpus callosum, without inflammation and is associated with oxidative stress and hypovitaminosis, as well as altered mental status, to mention dementia, seizures, depression and so on...
May 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28214879/thiamine-deprivation-produces-a-liver-atp-deficit-and-metabolic-and-genomic-effects-in-mice-findings-are-parallel-to-those-of-biotin-deficiency-and-have-implications-for-energy-disorders
#14
Alain de J Hernandez-Vazquez, Josue Andres Garcia-Sanchez, Elizabeth Moreno-Arriola, Ana Salvador-Adriano, Daniel Ortega-Cuellar, Antonio Velazquez-Arellano
Thiamine is one of several essential cofactors for ATP generation. Its deficiency, like in beriberi and in the Wernicke-Korsakoff syndrome, has been studied for many decades. However, its mechanism of action is still not completely understood at the cellular and molecular levels. Since it acts as a coenzyme for dehydrogenases of pyruvate, branched-chain keto acids, and ketoglutarate, its nutritional privation is partly a phenocopy of inborn errors of metabolism, among them maple syrup urine disease. In the present paper, we report metabolic and genomic findings in mice deprived of thiamine...
2016: Journal of Nutrigenetics and Nutrigenomics
https://www.readbyqxmd.com/read/28213665/neurologic-manifestations-of-vitamin-b-deficiency-after-bariatric-surgery
#15
Suriya Punchai, Zubaidah Nor Hanipah, Katherine M Meister, Philip R Schauer, Stacy A Brethauer, Ali Aminian
INTRODUCTION: The aim of this study was to assess the incidence, clinical presentation, and outcomes of neurologic disorders secondary to vitamin B deficiencies following bariatric surgery. METHODS: Patients at a single academic institution who underwent bariatric surgery and developed neurologic complications secondary to low levels of vitamins B1, B2, B6, and B12 between the years 2004 and 2015 were studied. RESULTS: In total, 47 (0.7%) bariatric surgical patients (Roux-en-Y gastric bypass n = 36, sleeve gastrectomy n = 9, and duodenal switch n = 2) developed neurologic manifestations secondary to vitamin B deficiencies...
February 17, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28160301/source-memory-in-korsakoff-syndrome-disentangling-the-mechanisms-of-temporal-confusion
#16
Mélanie Brion, Philippe de Timary, Anne-Lise Pitel, Pierre Maurage
BACKGROUND: Korsakoff syndrome (KS), most frequently resulting from alcohol dependence (ALC), is characterized by severe anterograde amnesia. It has been suggested that these deficits may extend to other memory components, and notably source memory deficits involved in the disorientation and temporal confusion frequently observed in KS. However, the extent of this source memory impairment in KS and its usefulness for the differential diagnosis between ALC and KS remain unexplored. METHODS: Nineteen patients with KS were compared with 19 alcohol-dependent individuals and 19 controls in a source memory test exploring temporal context confusions ("continuous recognition task")...
February 3, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28063599/-risk-factors-and-psychological-vulnerabilities-to-binge-drinking-in-youth
#17
E De Wever, V Quaglino
For years, a large number of studies have demonstrated the harmful effects of alcohol consumption on the brain and therefore on behavior and cognition. These studies first aimed at identifying the consequences of alcohol abuse consumption, more specifically in pathologies such as alcohol-dependence or Korsakoff syndrome. Researchers then also started to focus on vulnerabilities to alcohol consumption, especially in hyper fast alcohol consumption called binge-drinking (BD). Indeed BD, which is a particularly dangerous form of alcohol consumption, is usually observed in adolescents and young adults...
January 4, 2017: L'Encéphale
https://www.readbyqxmd.com/read/27987266/neuroimaging-of-chronic-alcohol-misuse
#18
REVIEW
Caitriona Logan, Hamed Asadi, Hong Kuan Kok, Seamus T Looby, Paul Brennan, Alan O'Hare, John Thornton
Alcohol is one of the most commonly abused substances worldwide. It results in a wide range of diseases and disorders affecting many organ systems. Alcohol-related nutritional deficiencies and electrolyte disturbance leave chronic abusers at risk of a range of demyelinating conditions to which the radiologist and clinician should always be alert. These include Wernicke's encephalopathy, Korsakoff's syndrome, Marchiafava-Bignami disease and osmotic demyelination. Cerebral volume loss is also a commonly encountered neuroimaging phenomenon in chronic alcohol abusers...
December 16, 2016: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/27984051/brain-endothelial-dysfunction-following-pyrithiamine-induced-thiamine-deficiency-in-the-rat
#19
Sumit Sarkar, Serguei Liachenko, Merle G Paule, John Bowyer, Joseph P Hanig
Prolonged vitamin B1 (thiamine) deficiency can lead to neurological disorders such as Wernicke's encephalopathy and Wernicke-Korsakoff Syndrome (WKS) in humans. These thiamine deficiency disorders have been attributed to vascular leakage, blood-brain barrier breakdown and neuronal loss in the diencephalon and brain stem. However, endothelial dysfunction following thiamine deficiency and its relationship to the phenomenon of neurodegeneration has not been clearly elucidated. The present study sought to begin to address this issue by evaluating vascular morphology and integrity in a pyrithiamine (PT)-induced rat model of thiamine deficiency...
October 28, 2016: Neurotoxicology
https://www.readbyqxmd.com/read/27918121/prevalence-and-severity-of-behavioural-symptoms-in-patients-with-korsakoff-syndrome-and-other-alcohol-related-cognitive-disorders-a-systematic-review
#20
REVIEW
Ineke J Gerridzen, Wiltine G Moerman-van den Brink, Marja F Depla, Els M L Verschuur, Ruth B Veenhuizen, Johannes C van der Wouden, Cees M P M Hertogh, Karlijn J Joling
OBJECTIVE: Experiences from clinical practice suggest that behavioural symptoms in patients with Korsakoff syndrome (KS) are a frequent problem. Knowledge about behavioural symptoms is important in understanding and managing these symptoms. The aim of this study is to review the prevalence and severity of behavioural symptoms in KS. METHODS: Relevant articles were identified by searching Medline (PubMed), PsycINFO, Embase and CINAHL up to 4 June 2014. Two reviewers independently selected the studies, extracted their baseline data and assessed methodological quality using a standardized checklist...
December 5, 2016: International Journal of Geriatric Psychiatry
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