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Idiopathic peripheral neuropathy

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https://www.readbyqxmd.com/read/28726051/serum-methylmalonic-acid-correlates-with-neuropathic-pain-in-idiopathic-parkinson-s-disease
#1
Jin-Sung Park, Donghwi Park, Pan-Woo Ko, Kyunghun Kang, Ho-Won Lee
Recent studies have shown a relatively higher prevalence of peripheral neuropathy in idiopathic Parkinson's disease (IPD). The hypothesis is that prolonged levodopa exposure causes vitamin B12 deficiency, which leads to peripheral neuropathy. The aim of our study was to find the relationship between vitamin B12 and its precursor methylmalonic acid (MMA) in IPD patients with neuropathic pain. We performed a cross-sectional study by enrolling consecutive 43 patients who were clinically tested positive for F-18 FP-CIT PET and 15 patients were diagnosed with peripheral neuropathy according to the Toronto clinical scoring system (TCSS)...
July 19, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28702813/dynamic-factors-involved-in-common-peroneal-nerve-entrapment-neuropathy
#2
Takao Kitamura, Kyongsong Kim, Daijiro Morimoto, Rinko Kokubo, Naotaka Iwamoto, Toyohiko Isu, Akio Morita
BACKGROUND: Common peroneal nerve (CPN) entrapment neuropathy (CPNEN) is the most common peripheral neuropathy of the lower extremities. The pathological mechanisms underlying CPNEN remain unclear. We sought to identify dynamic factors involved in CPNEN by directly measuring the CPN pressure during stepwise CPNEN surgery. METHODS: We enrolled seven patients whose CPNEN improved significantly after CPN neurolysis. All suffered intermittent claudication, and the repetitive plantar flexion test, used as a CPNEN provocation test, was positive...
July 12, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28685718/clinical-characteristics-electrophysiology-and-skin-biopsy-of-38-peripheral-neuropathy-cases-with-small-fiber-involvement-of-various-etiologies
#3
Bo Sun, Li-Zhi Liu, Yi-Fan Li, Zhao-Hui Chen, Li Ling, Fei Yang, Fang Cui, Xu-Sheng Huang
BACKGROUND: In small fiber neuropathy (SFN), thinly myelinated Aδ and unmyelinated C fibers are primarily affected, resulting in sensory and/or autonomic symptoms. Various etiologies have been shown to be associated with SFN. This study was aimed to analyze a variety of features in peripheral neuropathy (PN) with small fiber involvement, and to compare disease severity among patients with idiopathic PN, PN associated with impaired glucose tolerance (IGT), and metabolic syndrome (MS) PN...
July 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28566165/peripheral-neuropathy-in-idiopathic-parkinson-s-disease-a-systematic-review
#4
REVIEW
Panagiotis Zis, Richard A Grünewald, Ray Kallol Chaudhuri, Marios Hadjivassiliou
BACKGROUND: Parkinson's disease (PD) has been associated with peripheral neuropathy (PN). PN has been demonstrated in some rare genetic forms of PD (e.g. PARK2 mutations) but has also been linked to levodopa exposure. OBJECTIVE: The aim of this systematic review is to clarify any evidence of peripheral nervous system involvement in idiopathic PD. METHODS: A systematic computer-based literature search was conducted on PubMed database. FINDINGS: The pooled estimate of the prevalence of large fiber PN in PD was 16...
July 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28339448/efficacious-dorsal-root-ganglion-stimulation-for-painful-small-fiber-neuropathy-a-case-report
#5
Paolo Maino, Eva Koetsier, Alain Kaelin-Lang, Claudio Gobbi, Roberto Perez
Small fiber neuropathy is a disorder of the peripheral nerves with typical symptoms of burning, sharp, and shooting pain and sensory disturbances in the feet. Pain treatment depends principally on the underlying etiology with concurrent administration of antidepressants, anticonvulsants, opioids, and topical treatments like capsaicin and local anesthetics. However, treatments for pain relief in these patients frequently fail. We describe the first case of intractable painful small fiber neuropathy of the foot successfully treated with spinal cord stimulation of the left L5 dorsal root ganglion...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28241376/neurophysiological-recovery-5-years-after-carpal-tunnel-release-in-patients-with-diabetes
#6
Niels O B Thomsen, Gert S Andersson, Jonas Björk, Lars B Dahlin
INTRODUCTION: The long-term results of neurophysiological recovery after carpal tunnel release in patients with diabetes have not been studied. METHODS: Thirty-five patients with diabetes and carpal tunnel syndrome (CTS) were matched with 31 patients without diabetes who had idiopathic CTS, and 27 and 30 patients, respectively, participated in this follow-up study. Nerve conduction results at 5 years were compared with previously published results at baseline and 1 year...
February 27, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28112552/acupuncture-for-the-treatment-of-peripheral-neuropathy-a-systematic-review-and-meta-analysis
#7
REVIEW
Alexandra Dimitrova, Charles Murchison, Barry Oken
OBJECTIVES: Neuropathy and its associated pain pose great therapeutic challenges. While there has been a recent surge in acupuncture use and research, little remains known about its effects on nerve function. This review aims to assess the efficacy of acupuncture in the treatment of neuropathy of various etiologies. METHODS: The Medline, AMED, Cochrane, Scopus, CINAHL, and clintrials.gov databases were systematically searched from inception to July 2015. Randomized controlled trials (RCTs) assessing acupuncture's efficacy for poly- and mononeuropathy were reviewed...
March 2017: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
https://www.readbyqxmd.com/read/28009675/effects-of-foot-and-ankle-devices-on-balance-gait-and-falls-in-adults-with-sensory-perception-loss-a-systematic-review
#8
Joanne Paton, Anna L Hatton, Keith Rome, Bridie Kent
BACKGROUND: Foot and ankle devices are being developed as a method of preventing people with sensory perception loss sustaining a fall. Such devices are believed to work by reducing the likelihood of a fall by improving the balance and gait of the user. OBJECTIVES: The objective of the review was to evaluate the effectiveness of foot and ankle devices for the prevention of falls and the improvement of balance and gait in adults with sensory perception loss. INCLUSION CRITERIA TYPES OF PARTICIPANTS: Participants were community-dwelling adults with bilateral pathological sensory perception loss...
December 2016: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/27882168/monozygotic-twins-with-infantile-neuroaxonal-dystrophy-a-case-report-and-literature-review
#9
Haifeng Li, Yan Zou, Xinhua Bao, Hui Wang, Jiangping Wang, Huiying Jin, Yuping Che, Xiaoyan Tang
Infantile neuroaxonal dystrophy (INAD) is a rare neurodegenerative disease with early onset. PLA2G6 gene mutations have been identified in the majority individuals with INAD. In future, molecular diagnosis of INAD will replace the invasive biopsies used previously. In the present report, monozygotic male twins with INAD were referred The Children's Hospital (Zhejiang University School of Medicine, Zhejiang, China) at fifteen months old for delayed development. The older brother was found to have developmental stagnation when he was 6 months old...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27662650/study-of-autophagy-and-microangiopathy-in-sural-nerves-of-patients-with-chronic-idiopathic-axonal-polyneuropathy
#10
Kristin Samuelsson, Ayman A M Osman, Maria Angeria, Mårten Risling, Simin Mohseni, Rayomand Press
Twenty-five percent of polyneuropathies are idiopathic. Microangiopathy has been suggested to be a possible pathogenic cause of chronic idiopathic axonal polyneuropathy (CIAP). Dysfunction of the autophagy pathway has been implicated as a marker of neurodegeneration in the central nervous system, but the autophagy process is not explored in the peripheral nervous system. In the current study, we examined the presence of microangiopathy and autophagy-related structures in sural nerve biopsies of 10 patients with CIAP, 11 controls with inflammatory neuropathy and 10 controls without sensory polyneuropathy...
2016: PloS One
https://www.readbyqxmd.com/read/27454861/magnetic-resonance-neurography-in-the-diagnosis-of-neuropathies-of-the-lumbosacral-plexus-a-pictorial-review
#11
REVIEW
Nathaniel M Robbins, Vinil Shah, Nancy Benedetti, Jason F Talbott, Cynthia T Chin, Vanja C Douglas
Magnetic resonance neurography (MRN) is an important tool to detect abnormalities of peripheral nerves. This pictorial review demonstrates the MRN features of a variety of neuropathies affecting the lumbosacral plexus (LSP) and lower extremity nerves, drawn from over 1200 MRNs from our institution and supplemented by the literature. Abnormalities can be due to spinal compression, extraspinal compression, malignancy, musculoskeletal disease, iatrogenesis, inflammation, infection, and idiopathic disorders. We discuss indications and limitations of MRN in diagnosing LSP neuropathies...
November 2016: Clinical Imaging
https://www.readbyqxmd.com/read/27439408/intravenous-immunoglobulin-therapy-for-small-fiber-neuropathy-study-protocol-for-a-randomized-controlled-trial
#12
Bianca T A de Greef, Margot Geerts, Janneke G J Hoeijmakers, Catharina G Faber, Ingemar S J Merkies
BACKGROUND: Small fiber neuropathy is the most common cause of neuropathic pain in peripheral neuropathies, with a minimum prevalence of 53/100,000. Patients experience excruciating pain, and currently available anti-neuropathic and other pain drugs do not relieve the pain substantially. Several open-label studies have suggested an immunological basis in small fiber neuropathy and have reported efficacy of treatment with intravenous immunoglobulin. Therefore, immunological mechanisms conceivably may play a role in small fiber neuropathy...
July 20, 2016: Trials
https://www.readbyqxmd.com/read/27427299/an-idiopathic-thrombocytopenic-purpura-with-polyneuropathy
#13
Valeria Katchan, Paula David, Yehuda Shoenfeld
Concurrent association of idiopathic thrombocytopenic purpura (ITP) and peripheral neuropathy is a rare condition. There are only few case reports published concerning peripheral neuropathy with ITP. One of the etiopathogenetic mechanisms proposed is intraneural hemorrhage, but the pathogenesis is not fully understood. Autoimmune nature with common antibodies to the platelets and the nerve´s myelin sheath should also be considered. Here we describe a 47-year-old woman, with a family history of autoimmune diseases...
July 18, 2016: Immunologic Research
https://www.readbyqxmd.com/read/27412148/high-dose-subcutaneous-immunoglobulin-for-idiopathic-inflammatory-myopathies-and-dysimmune-peripheral-chronic-neuropathies-treatment-observational-study-of-quality-of-life-and-tolerance
#14
E Hachulla, O Benveniste, M Hamidou, L Mouthon, N Schleinitz, P Lozeron, J M Léger, C Vial, K Viala
BACKGROUND: In patients with autoimmune diseases who still derive benefit from high dose intravenous immunoglobulin (IVIg) treatment, some physicians resort to subcutaneous (SC) Ig as a replacement therapy. OBJECTIVE: To collect quality of life (QoL) and tolerance data on SCIg in patients for whom the switch from IVIg to SCIg is essential to maintain treatment. METHODS: This observational study included patients with either idiopathic inflammatory myopathies (IIM) or chronic dysimmune peripheral neuropathies (CDPN) treated with IVIg, who had been switched to SCIg administration for at least three months...
June 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/27372177/lacking-the-protective-label-of-diabetes-phenytoin-induced-distal-symmetrical-peripheral-neuropathy-a-clinical-case-report
#15
A M Mahon
This report documents an unusual case of distal symmetrical peripheral neuropathy (DSPN) in an otherwise healthy patient without diabetes mellitus (DM) presenting to a podiatric wound care clinic. The development of gas gangrene coupled with Charcot neuroarthropathic changes ultimately resulted in a potentially life-saving transmetatarsal (TMT) amputation. Causation of, or at least a contributor to, the DSPN was likely phenytoin usage for epileptic seizures. Long-term use of phenytoin can lead to axonal shrinkage and random clusters of nerve demyelination [1]...
November 2016: Journal of Tissue Viability
https://www.readbyqxmd.com/read/27356734/a-case-of-hemifacial-paresis-in-a-patient-with-lyme-neuroborreliosis-treated-with-antibiotics-in-whom-borrelia-meningitis-developed
#16
Hisao Shimizu, Koji Haratani, Masayuki Miyazaki, Yoshiaki Kakehi, Shuhei Nagami, Yuichi Katanami, Hiroki Kawabata, Nobuyuki Takahashi
A 38-year-old man visited our hospital because of hemifacial paresis that developed 2 months after being bit by a tick. We diagnosed idiopathic peripheral facial palsy and gave the patient oral prednisolone and valacyclovir. Although the symptoms completely resolved in about 2 weeks, there was a risk of Lyme neuroborreliosis. The patient therefore received doxycycline (100 mg twice daily) and amoxicillin (1,000 mg 3 times daily) for 14 days. Two months later, he had symptoms of meningitis such as headache and fever accompanied by lymphocytic cerebrospinal fluid pleocytosis...
July 28, 2016: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/27318706/reduced-intraepidermal-nerve-fiber-density-in-patients-with-rem-sleep-behavior-disorder
#17
Wiebke Schrempf, Istvan Katona, Imis Dogan, Verena V Felbert, Miriam Wienecke, Julia Heller, Andrea Maier, Andreas Hermann, Katharina Linse, Moritz D Brandt, Heinz Reichmann, Jörg B Schulz, Johannes Schiefer, Wolfgang H Oertel, Alexander Storch, Joachim Weis, Kathrin Reetz
BACKGROUND: Idiopathic rapid eye movement (REM) sleep behavior disorder (iRBD) has been increasingly acknowledged to be an initial specific manifestation of alpha-synucleinopathies such as Parkinson's disease (PD), multiple system atrophy (MSA) and dementia with Lewy bodies (DLB). Recent findings suggest that cutaneous abnormalities like small fiber neuropathy and alpha-synuclein deposition might reflect brain pathology and might function as early biomarkers in PD. This is the first study to elucidate whether iRBD patients already suffer from distinctive cutaneous features...
August 2016: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/27195144/idiopathic-systemic-capillary-leak-syndrome-a-case-report
#18
Bulent Yardimci, Rumeyza Kazancioglu
INTRODUCTION: Idiopathic systemic capillary leak syndrome (ISCLS) is rarely seen, and presents with recurrent episodes of hypotension, shock, hemoconcentration, and hypoproteinemia. The main pathology is the dysfunction of the vascular endothelium, and it is characterized by an increase of capillary permeability that is accompanied by the loss of intravascular fluid and protein. CASE PRESENTATION: We present a 58-year-old female who presented with peripheral edema, leg pain, and syncope at the emergency department...
February 2016: Iranian Red Crescent Medical Journal
https://www.readbyqxmd.com/read/27168487/facial-and-vestibular-neuropathy-of-unknown-origin-in-16-dogs
#19
A Jeandel, J L Thibaud, S Blot
OBJECTIVES: The aim of this study was to describe the signalment, clinical presentation, diagnostic findings and long-term follow-up in dogs with concomitant facial and vestibular neuropathy of unknown origin. METHODS: Appropriate cases were located through medical record searches. Inclusion criteria comprised dogs that had: clinical signs of facial paralysis with concomitant peripheral vestibular syndrome, thyroid function tests, no abnormalities on magnetic resonance imaging of the brain and tympanic bullae, and cerebrospinal fluid analysis...
February 2016: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/27155327/livedoid-vasculopathy-a-challenging-disease
#20
R Vieira, J M Bernardes, J A Pinto, L Costa
We present a rare association of idiopathic livedoid vasculopathy (LV) with peripheral sensory neuropathy successfully treated with intravenous immunoglobulin and warfarin and, after its failure, with rituximab. Although LV aetiology remains incompletely understood, the excellent clinical response observed in our patient suggests that B cells may be key players in its pathogenesis.
July 2016: Acta Reumatológica Portuguesa
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