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Osmotic demyelination syndrome

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https://www.readbyqxmd.com/read/28810281/-hyponatremia-differential-diagnosis-and-treatment
#1
Heiner Mönig, Alexander Arlt
Hyponatremia is the most common electrolyte abnormality seen in hospitalized patients, with up to 30 % having a plasma sodium concentration below 135 mmol/l. It is now clear that the clinical problem extends beyond the neurological symptoms, which can be explained by intracerebral osmotic fluid shifts and brain edema. Instead, chronic hyponatremia is associated with impaired gait stability and an increased risk of bone fragility fractures. Moreover, hyponatremia has been demonstrated to be an indicator of poor prognosis in a variety of conditions...
August 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28598055/the-mexican-hat-sign-in-osmotic-demyelination-syndrome
#2
Lulup Kumar Sahoo, Ashok Kumar Mallick, Kali Prasanna Swain, Geeta Mohanty, Maheswar Samanta, Bijay Kumar Mohanty
No abstract text is available yet for this article.
May 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28509122/severe-hyponatremia-in-a-patient-with-schizophrenia-associated-with-prolonged-consciousness-disturbance
#3
Kunihiko Yasuda, Takatsugu Iwashita, Yosuke Tayama, Yuko Makino, Ayumu Watanabe, Tatsuro Sano, Taisuke Shimizu, Tomonari Ogawa, Koichi Kanozawa, Hajime Hasegawa
Hyponatremia presents with various central nervous system symptoms during its course and treatment. We treated a patient who presented with a prolonged consciousness disorder and was suspected of having complications of neuroleptic malignant syndrome and osmotic demyelination syndrome (ODS) during the treatment for his hyponatremia, which was caused by syndrome of inappropriate secretion of antidiuretic hormone (SIADH). The patient was a 30-year-old Japanese man who had been under treatment for schizophrenia...
May 2017: CEN Case Reports
https://www.readbyqxmd.com/read/28500261/osmotic-demyelination-syndrome-in-type-1-diabetes-in-the-absence-of-dyselectrolytaemia-an-overlooked-complication
#4
Chandramohan Sharma, Banshi Lal Kumawat, Maulik Panchal, Mohit Shah
Central pontine myelinolysis (CPM) is a demyelinating disorder of central nervous system which involves central portion of the pons and sometimes extrapontine areas also. It is commonly reported in settings of hyponatraemia or its rapid correction, but in the last few years it has also been reported in patients with diabetes in the absence of electrolyte disturbances or correction of serum osmolality. Here we report a case of a 20-year-old female patient, with a known history of type 1 diabetes mellitus, who presented with acute onset spastic quadriparesis with dysarthria and mild ataxia which evolved over 2 weeks...
May 12, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28462557/osmotic-demyelination-syndrome-in-a-eunatremic-patient-with-chronic-kidney-disease
#5
Nikhil Gupta, Mufazzal Ahmad, Jalees Fatima, Ritu Karoli, Ahraz Ahmad
Osmotic demyelination syndrome is classically associated with rapid correction of hyponatremia. However, it can occur in normonatremic patients with other electrolyte abnormalities. One must suspect osmotic demyelination syndrome in susceptible patients with other electrolyte abnormalities like hypokalemia and hypophosphatemia.
March 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28458891/severe-symptomatic-hyponatremia-associated-with-the-use-of-polyethylene-glycol-based-bowel-preparation
#6
Navira Samad, Ian Fraser
SUMMARY: Colonoscopy is a useful tool in modern medicine and is increasingly employed for both diagnostic and treatment reasons. However, its effectiveness is highly reliant on the quality of bowel cleansing. Among different bowel-cleansing agents available, PEG (polyethylene glycol) is considered to be the safest cleansing agent, especially in relation to fluid and electrolyte problems. We present here a case of severe symptomatic hyponatremia that developed after the use of PEG for an elective colonoscopy...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28437822/osmotic-demyelination-syndrome-due-to-severe-hyponatremia-mimicking-hypoxic-encephalopathy
#7
Felix Wicke, Sasha Moreitz, Stefan Weidauer
Hyponatremia and its rapid correction is a well-known cause of osmotic demyelination most commonly affecting the pons. We report on a case of severe hyponatremia likely due to psychogenic polydipsia resulting in hypotonic hyperhydration with resulting cortical laminar necrosis on initial imaging, mimicking hypoxic brain damage. Pontine myelinolysis became apparent on follow-up imaging, illustrating the diagnostic challenges of extrapontine manifestations of severe hyponatremia.
April 2017: Fortschritte der Neurologie-Psychiatrie
https://www.readbyqxmd.com/read/28422408/prevention-of-the-osmotic-demyelination-syndrome-after-liver-transplantation-a-multidisciplinary-perspective
#8
REVIEW
J F Crismale, K A Meliambro, S DeMaria, D B Bronster, S Florman, T D Schiano
The osmotic demyelination syndrome (ODS) is a serious neurologic condition that occurs in the setting of rapid correction of hyponatremia. It presents with protean manifestations, from encephalopathy to the "locked-in" syndrome. ODS can complicate liver transplantation (LT), and its incidence may increase with the inclusion of serum sodium as a factor in the Mayo End-Stage Liver Disease score. A comprehensive understanding of risk factors for the development of ODS in the setting of LT, along with recommendations to mitigate the risk of ODS, are necessary...
April 19, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28321080/the-improvement-of-the-outcome-of-osmotic-demyelination-syndrome-by-plasma-exchange
#9
Saeko Kumon, Ryosuke Usui, Shinzo Kuzuhara, Kosaku Nitta, Minako Koike
A 71-year-old Japanese woman presented with progressive fatigue, lethargy, dysarthria and a gait disorder. Her laboratory data revealed hyponatremia (Na 101 mEq/L), and we started correcting her serum sodium level. Within a few days, she became comatose, bedridden, and was intubated. We diagnosed osmotic demyelination syndrome (ODS) and started performing plasma exchange (PE) on the 39th day of hospitalization. She fully recovered after starting PE, and was discharged on foot unassisted. PE can be a beneficial treatment in patients with chronic ODS...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28315624/extrapontine-myelinolysis-manifested-selectively-by-acute-severe-parkinsonian-syndrome-case-report
#10
IIvana Stetkarova, Zuzana Svobodova, Jozef Soltez, Jinda Svatova
OBJECTIVES: Osmotic demyelination syndrome (ODMS) is a rare and serious neurologic disorder with acute myelin disintegration, usually in the pontine area (central pontine myelinolysis) and to a lesser extent, even in other areas of the central nervous system (extrapontine myelinolysis). The main underlying mechanism is the change of serum osmolality with quick correction of low mineral levels, mainly hyponatraemia. Clinical manifestation is various and depends on the localization. DESIGN: We describe an acute isolated extrapontine myelinolysis causing acute onset of parkinsonism in a 61-year-old man who developed quickly progressing parkinsonian syndrome after the rapid correction of hyponatraemia...
November 2016: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/28289647/central-pontine-myelinolysis-induced-by-alcohol-withdrawal-a-case-report
#11
Jae Ho Kim, Sae Hyun Kim, Ho Joong Jeong, Young Joo Sim, Dong Kyu Kim, Ghi Chan Kim
Central pontine myelinolysis (CPM) is a demyelinating disorder characterized by the loss of myelin in the center of the basis pons, and is mainly caused by the rapid correction of hyponatremia. We report the case of a young woman who presented with gait disturbance and alcohol withdrawal, and who was eventually diagnosed with CPM. Generally, the cause and pathogenesis of CPM in chronic alcoholics remain unclear. In this cases, the CPM may be unrelated to hyponatremia or its correction. However, it is possible that the osmotic pressure changes due to refeeding syndrome after alcohol withdrawal was the likely cause in this case...
February 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28284465/neurological-disorders-in-liver-transplant-candidates-pathophysiology-and-clinical-assessment
#12
REVIEW
Paolo Feltracco, Annachiara Cagnin, Cristiana Carollo, Stefania Barbieri, Carlo Ori
Compromised liver function, as a consequence of acute liver insufficiency or severe chronic liver disease may be associated with various neurological syndromes, which involve both central and peripheral nervous system. Acute and severe hyperammoniemia inducing cellular metabolic alterations, prolonged state of "neuroinflammation", activation of brain microglia, accumulation of manganese and ammonia, and systemic inflammation are the main causative factors of brain damage in liver failure. The most widely recognized neurological complications of serious hepatocellular failure include hepatic encephalopathy, diffuse cerebral edema, Wilson disease, hepatic myelopathy, acquired hepatocerebral degeneration, cirrhosis-related Parkinsonism and osmotic demyelination syndrome...
July 2017: Transplantation Reviews
https://www.readbyqxmd.com/read/28270885/does-accidental-overcorrection-of-symptomatic-hyponatremia-in-chronic-heart-failure-require-specific-therapeutic-adjustments-for-preventing-central-pontine-myelinolysis
#13
REVIEW
Renato De Vecchis, Michel Noutsias, Carmelina Ariano, Arturo Cesaro, Carmela Cioppa, Anna Giasi, Nicola Maurea
This review aims at summarizing essential aspects of epidemiology and pathophysiology of hyponatremia in chronic heart failure (CHF), to set the ground for a practical as well as evidence-based approach to treatment. As a guide through the discussion of the available evidence, a clinical case of hyponatremia associated with CHF is presented. For this case, the severe neurological signs at presentation justified an emergency treatment with hypertonic saline plus furosemide, as indicated. Subsequently, as the neurological emergency began to subside, the reversion of the trend toward hyponatremia overcorrection was realized by continuous infusion of hypotonic solutions, and administration of desmopressin, so as to prevent the very feared risk of an osmotic demyelination syndrome...
April 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28255480/multiple-electrolyte-and-metabolic-emergencies-in-a-single-patient
#14
Caprice Cadacio, Phuong-Thu Pham, Ruchika Bhasin, Anita Kamarzarian, Phuong-Chi Pham
While some electrolyte disturbances are immediately life-threatening and must be emergently treated, others may be delayed without immediate adverse consequences. We discuss a patient with alcoholism and diabetes mellitus type 2 who presented with volume depletion and multiple life-threatening electrolyte and metabolic derangements including severe hyponatremia (serum sodium concentration [SNa] 107 mEq/L), hypophosphatemia ("undetectable," <1.0 mg/dL), and hypokalemia (2.2 mEq/L), moderate diabetic ketoacidosis ([DKA], pH 7...
2017: Case Reports in Nephrology
https://www.readbyqxmd.com/read/28251577/neurologic-complications-of-transplantation
#15
Rajat Dhar
Neurologic disturbances including encephalopathy, seizures, and focal deficits complicate the course 10-30% of patients undergoing organ or stem cell transplantation. While much or this morbidity is multifactorial and often associated with extra-cerebral dysfunction (e.g., graft dysfunction, metabolic derangements), immunosuppressive drugs also contribute significantly. This can either be through direct toxicity (e.g., posterior reversible encephalopathy syndrome from calcineurin inhibitors such as tacrolimus in the acute postoperative period) or by facilitating opportunistic infections in the months after transplantation...
March 1, 2017: Neurocritical Care
https://www.readbyqxmd.com/read/28212925/reversible-opercular-syndrome-secondary-to-osmotic-demyelination
#16
Shuchit Pandey, Vikram V Holla, Imran Rizvi, Rakesh Shukla
Opercular syndrome (OPS) is characterized by weakness of facial, masticatory, pharyngeal, laryngeal, tongue and brachial muscles on voluntary command with preservation of emotional and reflexive movements. We report a case of 45year old female who developed the features of OPS due to lesions of bilateral frontal opercular region induced by osmotic demyelination secondary to hyperosmolar hyperglycaemia. On follow up at 6 months, she had complete recovery.
April 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28190443/neurologic-manifestations-of-major-electrolyte-abnormalities
#17
REVIEW
M Diringer
The brain operates in an extraordinarily intricate environment which demands precise regulation of electrolytes. Tight control over their concentrations and gradients across cellular compartments is essential and when these relationships are disturbed neurologic manifestations may develop. Perturbations of sodium are the electrolyte disturbances that most often lead to neurologic manifestations. Alterations in extracellular fluid sodium concentrations produce water shifts that lead to brain swelling or shrinkage...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28131203/temporal-evolution-of-the-trident-and-piglet-signs-of-osmotic-demyelination-syndrome
#18
Shin C Beh
Central pontine myelinolysis (CPM) is a potentially-devastating complication of rapid osmolar shifts, classically attributed to overlyaggressive correction of chronic hyponatremia. Magnetic resonance imaging (MRI) allowed earlier diagnosis of CPM, but most importantly, it has revealed that the odds of good functional recovery are surprisingly high. A trident shaped pontine lesion is a typical finding in CPM (the trident sign). The "piglet sign" is a much less well-known radiologic finding in CPM. Due to the rarity of CPM, very little has been published on the evolution of these MRI findings...
February 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28122966/osmotic-stress-induced-defective-glial-proteostasis-contributes-to-brain-demyelination-after-hyponatremia-treatment
#19
Fabrice Gankam-Kengne, Bruno S Couturier, Alain Soupart, Jean Pierre Brion, Guy Decaux
Adequate protein folding is necessary for normal cell function and a tightly regulated process that requires proper intracellular ionic strength. In many cell types, imbalance between protein synthesis and degradation can induce endoplasmic reticulum (ER) stress, which if sustained, can in turn lead to cell death. In nematodes, osmotic stress induces massive protein aggregation coupled with unfolded protein response and ER stress. In clinical practice, patients sustaining rapid correction of chronic hyponatremia are at risk of osmotic demyelination syndrome...
June 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/27987266/neuroimaging-of-chronic-alcohol-misuse
#20
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...
August 2017: Journal of Medical Imaging and Radiation Oncology
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