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https://www.readbyqxmd.com/read/28645685/concordance-between-brain-18-f-fdg-pet-and-cerebrospinal-fluid-biomarkers-in-diagnosing-alzheimer-s-disease
#1
S Rubí, A Noguera, S Tarongí, M Oporto, A García, H Vico, A Espino, M J Picado, A Mas, C Peña, G Amer
OBJECTIVES: Cortical posterior hypometabolism on PET imaging with (18)F-FDG (FDG-PET), and altered levels of Aß1-42 peptide, total Tau (tTau) and phosphorylated Tau (pTau) proteins in cerebrospinal fluid (CSF) are established diagnostic biomarkers in Alzheimer's disease (AD). An evaluation has been made of the concordance and relationship between the results of FDG-PET and CSF biomarkers in symptomatic patients with suspected AD. MATERIAL AND METHODS: A retrospective review was carried out on 120 patients with cognitive impairment referred to our Cognitive Neurology Unit, and who were evaluated by brain FDG-PET and a lumbar puncture for CSF biomarkers...
June 20, 2017: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/28644588/clinical-consensus-guidelines-on-the-application-of-cerebrospinal-fluid-biomarkers-for-alzheimer-s-disease-diagnosis-recommendations-of-the-irish-network-for-biomarkers-in-neurodegeneration
#2
A M Miller, E Begley, R Coen, M Doyle, J Dunne, S Hutchinson, S P Kennelly, R A Kenny, R P Killeen, A Lynch, S O'Dwyer, C O'Neill, S S O'Sullvan, M J Rowan, N Sheehy, C McGuigan, B A Lawlor
It is accepted that a lumbar puncture (LP) and cerebrospinal fluid (CSF) biomarker analysis support the routine diagnostic work-up for the differential diagnosis of dementia due to Alzheimer's disease (AD) within certain patient cohorts1. These tests, which measure CSF protein concentrations of amyloid-β42 (Aβ42), total tau (t-tau) and phospho tau (p-tau), were recently validated, accredited and made available clinically for the first time in Ireland. A working group, comprising Irish clinical and scientific researchers, met to review a) the validation results; b) international consensus opinions, and c) research and clinical evidence as to the clinical utility of CSF biomarker analysis for AD dementia diagnosis...
December 12, 2016: Irish Medical Journal
https://www.readbyqxmd.com/read/28644430/the-clinical-landscape-for-sma-in-a-new-therapeutic-era
#3
REVIEW
K Talbot, E F Tizzano
Despite significant advances in basic research, the treatment of degenerative diseases of the nervous system remains one of the greatest challenges for translational medicine. The childhood onset motor neuron disorder spinal muscular atrophy (SMA) has been viewed as one of the more tractable targets for molecular therapy, due to a detailed understanding of the molecular genetic basis of the disease. In SMA, inactivating mutations in the SMN1 gene can be partially compensated for by limited expression of SMN protein from a variable number of copies of the SMN2 gene, which provides both a molecular explanation for phenotypic severity and a target for therapy...
June 23, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28644254/sporadic-creutzfeldt-jakob-disease-with-unilateral-symptoms-in-the-setting-of-metastatic-renal-cell-carcinoma
#4
Kyle C Rossi, Christine M Stahl, Pengfei Zhang, John W Liang, Lara V Marcuse, Fred Lublin
INTRODUCTION: Although it is not rare for magnetic resonance imaging findings in Creutzfeldt-Jakob disease to be asymmetric, unilateral clinical syndromes are uncommonly reported and may confound diagnosis. In addition, neurological paraneoplastic syndromes are not common in renal cell carcinoma, though there are cases reported, often without an offending antibody isolated. CASE REPORT: A 66-year-old man was admitted with 1 month of left-sided numbness and "loss of control" of the left arm...
July 2017: Neurologist
https://www.readbyqxmd.com/read/28644158/radiology-case-of-the-month-idiopathic-cd4-lymphocytopenia
#5
Chris Malone, Neel D Gupta, Amit Kothari, Enrique Palacios, Harold Neitzschman
A 39 year-old male with a history of diabetes, retinitis pigmentosa, and genital warts presented with intractable occipital headaches accompanied with nausea and vomiting. The patient had markedly depressed CD4 counts. Furthermore the patient tested negative for HIV and HTLV 1/2 and had normal immunoglobulin levels. During hospital course the patient underwent a lumbar puncture and multiple imaging exams, including both CT and MR. Except for occasional nausea and vomiting controlled by therapeutic lumbar punctures, phenergan, and dilaudid the patient's hospital course was uncomplicated...
May 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28643170/predictors-and-incidence-of-orthostatic-headache-associated-with-lumbar-drain-placement-following-endoscopic-endonasal-skull-base-surgery
#6
Buqing Liang, Sathwik R Shetty, Sacit Bulent Omay, Joao Paulo Almeida, Shilei Ni, Yu-Ning Chen, Armando S Ruiz-Treviño, Vijay K Anand, Theodore H Schwartz
BACKGROUND: Orthostatic headache (OH) is a potential complication of lumbar drainage (LD) usage. The incidence and risk factors for OH with the use of lumbar drainage during endoscopic endonasal procedures have not been documented. OBJECTIVE: To investigate the incidence of post-procedure OHs associated with placement of LD in patients undergoing endoscopic endonasal procedures. METHODS: We prospectively noted the placement of LDs in a consecutive series of endoscopic endonasal skull base surgeries...
June 22, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28641772/susac-syndrome-a-differential-diagnosis-of-white-matter-lesions
#7
Mariano Marrodan, Jorge Correale, Lucas Alessandro, Mariela Amaya, Maria Eugenia Fracaro, Alejandro Alfredo Köhler, Marcela Fiol
INTRODUCTION: Susac Syndrome is an autoimmune endotheliopathy affecting capillaries and precapillary arterioles of the brain, inner ear and retina. The classic symptom triad includes visual disturbances, hypoacusia, and encephalopathy, but is rarely fully manifest at onset. The syndrome typically follows an active fluctuating monophasic course. Typical imaging findings on brain magnetic resonance show central fiber microischemias/microinfarctions of the corpus callosum known as "snow balls", as well as lineal infarcts and upper callosal fiber involvement...
July 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28627004/utility-of-the-urine-reagent-strip-leukocyte-esterase-assay-for-the-diagnosis-of-meningitis-in-resource-limited-settings-meta-analysis
#8
REVIEW
William Bortcosh, Mark Siedner, Ryan W Carroll
OBJECTIVE: Diagnosis of bacterial meningitis often requires cytometry, chemistry, and/or microbiologic culture capabilities. Unfortunately, laboratory resources in low resource settings (LRS) often lack the capacity to perform these studies. We sought to determine whether the presence of white blood cells in CSF detected by commercially available urine reagent strips could aid in the diagnosis of bacterial meningitis. METHODS: We searched PubMed for studies published between 1980 - 2016 that investigated the use of urine reagent strips to identify cerebrospinal fluid (CSF) pleocytosis...
June 19, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28625907/long-standing-isolated-autoimmune-hypothalamitis-diagnosed-with-endoscopic-transventricular-biopsy-a-case-report
#9
Lorenzo Bertulli, Giulio Andrea Bertani, Umberto Gianelli, Giovanna Mantovani, Paolo Maria Rampini, Marco Locatelli
BACKGROUND: Autoimmune hypothalamitis, which is among the causes of acquired central diabetes insipidus, has been described very rarely in the literature. This condition is probably provoked by the production of anti-vasopressin secreting cells antibodies and anti-hypothalamus antibodies, and is often associated with pituitary or polyendocrine autoimmunity. Correct diagnosis and immediate treatment are essential in order to avoid the progression of the pathological process. CASE DESCRIPTION: A woman diagnosed with central diabetes insipidus 12 year ago, suffering from panhypopituitarism and mild memory deficit came to our attention...
June 15, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28623115/association-of-cerebral-venous-thrombosis-and-intracranial-hypotension-review-of-3-cases
#10
Leen Sinnaeve, Ludo Vanopdenbosch, Koen Paemeleire
Cerebral venous thrombosis is a rare complication of intracranial hypotension. We describe 3 cases in which this phenomenon occurred, as a result of a lumbar puncture or due to a spontaneous cerebrospinal fluid leak. We emphasize the importance of early detection of the intracranial hypotension syndrome, the most common clinical manifestation being orthostatic headache. It is not an innocent condition as it is associated with other potential complications such as subdural hygroma/hematoma, cranial nerve palsies, cerebellar tonsillar descent, and even brainstem manifestations...
June 13, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28622533/intrathecal-igm-index-correlates-with-a-severe-disease-course-in-multiple-sclerosis-clinical-and-mri-results
#11
Serkan Ozakbas, Bilge Piri Cinar, Pinar Özcelik, Hatice Baser, Gorkem Kosehasanoğullari
OBJECTIVES: Intrathecally synthesized IgM can be seen not only in the cerebrospinal fluid (CSF) in infectious and inflammatory diseases of the central nervous system, but also in that of patients with multiple sclerosis (MS). Intrathecal IgM synthesis in MS seems to be correlated with an unfavorable disease course. In one cross-sectional study, intrathecal synthesis of IgM (IgM index) was found to be correlated with cranial magnetic resonance imaging (MRI) parameters. The purpose of this study was to determine the possible relationship between the IgM index and MRI and clinical parameters...
June 1, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28622178/labor-analgesia-onset-with-dural-puncture-epidural-versus-traditional-epidural-using-a-26-gauge-whitacre-needle-and-0-125-bupivacaine-bolus-a-randomized-clinical-trial
#12
Sylvia H Wilson, Bethany J Wolf, Kellie N Bingham, Quiana S Scotland, John M Fox, Erick M Woltz, Latha Hebbar
BACKGROUND: Lumbar epidurals (LEs) provide excellent analgesia. Combined spinal epidural and dural puncture epidural (DPE) are 2 techniques to expedite neuraxial analgesia onset. In DPE, dura is punctured but medication is not administered in the cerebrospinal fluid. Expedited analgesia onset has been demonstrated with DPE, using 0.25% bupivacaine; however, this concentration may impede an unassisted vaginal birth and is not currently used for induction and maintenance of labor analgesia...
June 14, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28617817/prevalence-of-cryptococcal-infection-among-advanced-hiv-patients-in-argentina-using-lateral-flow-immunoassay
#13
Claudia Frola, Liliana Guelfand, Gabriela Blugerman, Edgardo Szyld, Sara Kaufman, Pedro Cahn, Omar Sued, Héctor Pérez
BACKGROUND: Globally, Latin America ranks third among regions with most cases of AIDS related cryptococcal meningitis. In 2009, a lateral flow immunoassay (LFA) for the detection of cryptococcal antigen (CrAg) was developed as a potential point-of-care test for diagnosis of cryptococcal infection. In 2011 World Health Organizations recommended on CrAg screening for HIV positive persons with CD4 below 100 cells/μL, followed by preemptive fluconazole treatment. However, in Argentina no formal recommendations for CrAg screening have been issued...
2017: PloS One
https://www.readbyqxmd.com/read/28616896/high-resolution-transbulbar-ultrasonography-helping-differentiate-intracranial-hypertension-in-bilateral-optic-disc-oedema-patients
#14
Qian Chen, Weimin Chen, Min Wang, Xinghuai Sun, Yan Sha, Zhenxin Li, Guohong Tian
PURPOSE: The enlargement of optic nerve sheath diameter (ONSD) has been proven to be related with raised intracranial pressure (ICP). No prospective study has been focused on utilizing retrobulbar ultrasonography in optic disc oedema patient presented to ophthalmologist. METHODS: High-resolution transbulbar ultrasonography was performed in a cohort of patient presented with bilateral optic disc oedema. The subarachnoid space of optic nerve (SAS), ONSD and optic nerve diameter (OND) was measured prior to other ancillaries including lumbar puncture...
June 14, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28611643/uncommon-presentation-of-idiopathic-intracranial-hypertension-in-a-patient-with-polycystic-ovary-syndrome-a-case-report
#15
Anas Mohammad Albarrak, Suleiman Kojan
INTRODUCTION: Idiopathic intracranial hypertension is a rare condition characterized by increased intracranial pressure without clinical, laboratory, or radiological evidence of intracranial pathology. Early management could prevent irreversible outcomes. CASE PRESENTATION: A 17-year-old single Arabian female of Arab origin presented with a 2-day complaint of horizontal diplopia and transient visual obscurations. She denied any history of headache or decreased vision...
January 2017: Case Reports in Neurology
https://www.readbyqxmd.com/read/28606298/-melkersson-rosenthal-syndrome-in-a-young-man
#16
Elisabeth Lauritzen, Andreas P Schjellerup Jørkov
A 24-year-old man presented with orofacial swelling, peripheral facial palsy and fissured tongue. Apart from a previous episode of peripheral palsy, he had no history of illness. Biopsy of the lip, blood tests, magnetic resonance imaging of the head and lumbar puncture showed no pathology. He received systemic prednisone for ten days, and follow-up showed sparse improvement in facial movements. The patient could have been misdiagnosed with Bell's palsy, but the symptoms rather indicated a case of Melkersson-Rosenthal syndrome...
June 12, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28604475/analysis-of-the-variables-influencing-valproic-acid-concentration-in-the-serum-and-cerebrospinal-fluid-of-chinese-patients-after-craniotomy
#17
Li Zhi-Hong, Gao Wei-Qi, Liu Gui-Fen, Chen Wei-Hong
BACKGROUND: Valproic acid (VPA) has been widely used in Chinese patients after craniotomy. Many studies have focused on the influencing factors of VPA serum concentration, but conclusions are sometimes paradoxical. Furthermore, the concentration of VPA in the cerebrospinal fluid (CSF) has been rarely reported. In the present study, VPA CSF concentrations were measured and the potential factors influencing serum concentration and CSF distribution of VPA were investigated. In addition, the functional relationship between serum and CSF concentration was explored...
June 8, 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28603768/consensus-guidelines-for-lumbar-puncture-in-patients-with-neurological-diseases
#18
Sebastiaan Engelborghs, Ellis Niemantsverdriet, Hanne Struyfs, Kaj Blennow, Raf Brouns, Manuel Comabella, Irena Dujmovic, Wiesje van der Flier, Lutz Frölich, Daniela Galimberti, Sharmilee Gnanapavan, Bernhard Hemmer, Erik Hoff, Jakub Hort, Ellen Iacobaeus, Martin Ingelsson, Frank Jan de Jong, Michael Jonsson, Michael Khalil, Jens Kuhle, Alberto Lleó, Alexandre de Mendonça, José Luis Molinuevo, Guy Nagels, Claire Paquet, Lucilla Parnetti, Gerwin Roks, Pedro Rosa-Neto, Philip Scheltens, Constance Skårsgard, Erik Stomrud, Hayrettin Tumani, Pieter Jelle Visser, Anders Wallin, Bengt Winblad, Henrik Zetterberg, Flora Duits, Charlotte E Teunissen
INTRODUCTION: Cerebrospinal fluid collection by lumbar puncture (LP) is performed in the diagnostic workup of several neurological brain diseases. Reluctance to perform the procedure is among others due to a lack of standards and guidelines to minimize the risk of complications, such as post-LP headache or back pain. METHODS: We provide consensus guidelines for the LP procedure to minimize the risk of complications. The recommendations are based on (1) data from a large multicenter LP feasibility study (evidence level II-2), (2) systematic literature review on LP needle characteristics and post-LP complications (evidence level II-2), (3) discussion of best practice within the Joint Programme Neurodegenerative Disease Research Biomarkers for Alzheimer's disease and Parkinson's Disease and Biomarkers for Multiple Sclerosis consortia (evidence level III)...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28603767/lumbar-puncture-in-patients-with-neurologic-conditions
#19
Rosha Babapour Mofrad, Femke H Bouwman, Rosalinde E R Slot, Tessa Timmers, Wiesje M van der Flier, Philip Scheltens, Charlotte E Teunissen
A lumbar puncture is performed to obtain cerebral spinal fluid. It is implemented in the clinic on a routine basis to aid the diagnosis of neurologic diseases, such as dementia. This video will show the lumbar puncture procedure as routinely performed in the VUmc Alzheimer Center.
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28600739/association-of-longitudinal-white-matter-degeneration-and-cerebrospinal-fluid-biomarkers-of-neurodegeneration-inflammation-and-alzheimer-s-disease-in-late-middle-aged-adults
#20
Annie M Racine, Andrew P Merluzzi, Nagesh Adluru, Derek Norton, Rebecca L Koscik, Lindsay R Clark, Sara E Berman, Christopher R Nicholas, Sanjay Asthana, Andrew L Alexander, Kaj Blennow, Henrik Zetterberg, Won Hwa Kim, Vikas Singh, Cynthia M Carlsson, Barbara B Bendlin, Sterling C Johnson
Alzheimer's disease (AD) is characterized by substantial neurodegeneration, including both cortical atrophy and loss of underlying white matter fiber tracts. Understanding longitudinal alterations to white matter may provide new insights into trajectories of brain change in both healthy aging and AD, and fluid biomarkers may be particularly useful in this effort. To examine this, 151 late-middle-aged participants enriched with risk for AD with at least one lumbar puncture and two diffusion tensor imaging (DTI) scans were selected for analysis from two large observational and longitudinally followed cohorts...
June 9, 2017: Brain Imaging and Behavior
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